Eaton PROFIBUS-DP EZ204-DP User manual

EZ500_700.book Page 1 Tuesday, May 3, 2005 5:15 PM
EZ500/700 Series
User Manual
April 2005
Re-Order from
OmegamationTM
1-888-55-66342
1-888-55-OMEGA
omegamation.com
MN05013003E
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EZ500_700.book Page 2 Tuesday, May 3, 2005 5:15 PM
EZ500_700.book Page I Tuesday, May 3, 2005 5:15 PM
Warning!
Dangerous electrical voltage!
Before commencing the installation
• Disconnect the power supply of the device.
• Ensure that devices cannot be accidentally
restarted.
• Verify isolation from the supply.
• Short circuit to earth.
• Cover or enclose neighboring units that
are live.
• Follow the engineering instructions (AWA)
of the device concerned.
• Only suitably qualified personnel in
accordance with EN 50110-1/-2 (VDE 0105
Part 100) may work on this device/system.
• Before installation and before touching
the device ensure that you are free of
electrostatic charge.
Eaton
Safety instructions
• The functional earth (FE) must be
connected to the protective earth (PE) or
to the potential equalization. The system
installer is responsible for implementing this
connection.
• Connecting cables and signal lines should
be installed so that inductive or capacitive
MN05013003E
interference does not impair the automation
functions.
• Install automation devices and related
operating elements in such a way that they
are well protected against unintentional
operation.
• Suitable safety hardware and software
measures should be implemented for the
I/O interface so that a line or wire breakage
on the signal side does not result in
undefined states in the automation devices.
• Ensure a reliable electrical isolation of the
low voltage for the 24 volt supply. Only
use power supply units complying with
IEC 60364-4-41 (VDE 0100 Part 410) or HD
384.4.41 S2.
• Deviations of the mains voltage from the
rated value must not exceed the tolerance
limits given in the specifications, otherwise
this may cause malfunction and dangerous
operation.
• Emergency stop devices complying with
IEC/EN 60204-1 must be effective in all
operating modes of the automation devices.
Unlatching the emergency-stop devices
must not cause restart.
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I
EZ500_700.book Page II Tuesday, May 3, 2005 5:15 PM
• Devices that are designed for mounting in
housings or control cabinets must only be
operated and controlled after they have
been installed with the housing closed.
Desktop or portable units must only be
operated and controlled in enclosed
housings.
• Wherever faults in the automation system
may cause damage to persons or property,
external measures must be implemented to
ensure a safe operating state in the event of
a fault or malfunction (for example, by
means of separate limit switches,
mechanical interlocks etc.).
• Measures should be taken to ensure the
proper restart of programs interrupted after
a voltage dip or failure. This should not
cause dangerous operating states even for
a short time. If necessary, emergency-stop
devices should be implemented.
II
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MN05013003E
EZ500_700.book Page 1 Tuesday, May 3, 2005 5:15 PM
Contents
1
MN05013003E
About This Manual
Device designation
Writing conventions
9
9
10
EZ
Target readership
Proper use
– Improper use
Overview
Modelse
– Type reference
EZ operation
– Buttons
– Moving through menus and choosing values
– Selecting main and system menu
– EZ Status display
– Status display for local expansion
– Advanced Status display
– EZ LED display
– Menu structure
– Selecting or toggling between menu items
– Cursor display
– Setting values
11
11
11
11
12
15
17
18
18
18
19
20
20
21
21
22
27
27
28
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EZ500_700.book Page 2 Tuesday, May 3, 2005 5:15 PM
2
3
2
Installation
Mounting
Connecting the expansion device
Terminals
– Tools
– Cable cross-sections
Connecting the power supply
– Cable protection
– Supplying AC units
– Supplying DC units
Connecting the inputs
– Connecting EZ AC digital inputs
– Connecting EZ DC digital inputs
– Connecting EZ DC analog inputs
– Connecting high-speed counters and
frequency generators
Connecting the outputs
– Connecting relay outputs
– Connecting transistor outputs
Expanding inputs/outputs
– Local expansion
– Remote expansion
Connecting bus systems
49
51
52
54
57
57
58
60
Commissioning
Switching on
Setting the menu language
EZ operating modes
Creating your first circuit diagram
– Circuit diagram display
– From the first contact to the output coil
– Wiring
– Testing the circuit diagram
– Deleting the circuit diagram
– Fast circuit diagram entry
61
61
62
63
64
66
67
68
69
71
71
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29
29
32
33
33
33
33
33
34
35
37
37
42
44
MN05013003E
EZ500_700.book Page 3 Tuesday, May 3, 2005 5:15 PM
4
MN05013003E
Wiring with EZ
Operation of EZ
– Buttons for editing circuit diagrams and
function relays
– Operation
– Relay, function relays
– Saving and loading circuit diagrams
Working with contacts and relays
– Input and output contacts
– Creating and modifying connections
– Inserting and deleting a rung
– Switching with the cursor buttons
– Checking the circuit diagram
– Coil functions
Function relays
– Example with function relay timer and
counter relay
Analog value comparator/threshold value switch
– Circuit diagram display with analog
value comparator
– Parameter display in RUN mode
– Resolution of the analog inputs
– Function of the analog value comparator
Counters
– Function of the counter function relay
High-speed counters, EZ-DA, EZ-DC
– Frequency counters
– High-speed counter
Text display
– Wiring a text display
– Retention
– Scaling
– Function
– Text entry
– Character set
– Entering a setpoint in a display
For more information visit: www.EatonElectrical.com
73
73
73
74
77
80
80
81
84
86
87
88
89
95
96
102
103
105
105
106
114
118
122
122
128
134
135
135
136
136
137
137
138
3
EZ500_700.book Page 4 Tuesday, May 3, 2005 5:15 PM
7-day time switch
– Parameter display and parameter set
for 7-day time switch:
– Changing time switch channel
– Function of the 7-day time switch
Operating hours counter
– Value range of the operating hours counter
– Accuracy of the operating hours counter
– Function of the operating hours counter
function block
Timing relays
– Parameter display and parameter set for
a timing relay:
– Retention
– Timing relay modes
– Time range
– Function of the timing relay function block
– Timing relay examples
Jumps
– Function
– Power flow display
Year time switch
– Wiring of a year time switch
– Parameter display and parameter set
for the year time switch:
– Changing time switch channel
– Entry rules
– Function of the year time switch
Master reset
– Operating modes
– Function of the master reset function relay
4
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140
140
141
142
145
146
146
146
150
150
151
152
152
155
163
166
166
167
169
169
170
171
171
173
176
177
177
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5
MN05013003E
Basic circuits
– Negation (contact)
– Negation (coil)
– Maintained contact
– Series circuit
– Parallel circuit
– Parallel circuit operating like a series
connection of make contacts
– Parallel circuit operating like a series
connection of break contacts
– Two-way circuit
– Self-latching
– Impulse relay
– Cycle pulse on rising edge
– Cycle pulse on falling edge
Example circuits
– Star-delta starting
– 4x shift register
– Running light
– Stairwell lighting
182
182
183
184
184
185
186
186
188
192
194
EZ Settings
Password protection
– Password setup
– Selecting the scope of the password
– Activating the password
– Unlocking EZ
– Changing or deleting the password range
Changing the menu language
Changing parameters
– Adjustable parameters for function relays
Setting date, time and daylight saving time
– Setting the time
– Setting summer time start and end
– Setting summer time start and end
– Summer time start and end, setting the rule
Activating debounce (input delay)
– Activating debounce (input delay)
– Deactivating debounce (input delay)
199
199
200
201
202
203
204
205
206
207
209
209
210
211
211
218
219
219
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178
178
179
179
179
180
181
5
EZ500_700.book Page 6 Tuesday, May 3, 2005 5:15 PM
Activating and deactivating the P buttons
– Activating the P buttons
– Function of the P buttons
– Deactivating the P buttons
Startup behavior
– Setting the startup behavior
– Behavior when the circuit diagram is deleted
– Behavior during upload/download to card or PC
– Possible faults
– Card mode behavior
Setting the cycle time
Retention (non-volatile data storage)
– Permissible markers and function relays
– Setting retentive behavior
– Deleting retentive actual values
– Transferring retentive behavior
– Changing the operating mode or the
circuit diagram
– Changing the startup behavior in the
SYSTEM menu
Displaying device information
6
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220
220
220
221
221
221
222
222
223
223
225
226
226
226
228
228
229
229
230
MN05013003E
EZ500_700.book Page 7 Tuesday, May 3, 2005 5:15 PM
6
7
MN05013003E
Inside EZ
EZ circuit diagram cycle
– EZ operation and effects on circuit
diagram creation
Delay times for inputs and outputs
– Delay times with EZ-DA and EZ-DC basic units
– Delay time with EZ-AB, EZ-AC basic units
– Delay times for the analog inputs of
EZ-AB, EZ-DA and EZ-DC
Monitoring of short-circuit/overload with EZ..-D.-T..
Expanding EZ700
– How is an expansion unit recognized
– Transfer behavior
– Function monitoring of expansion units
Saving and loading circuit diagrams
– EZ…-..-..X
– Interface
Memory card
– Loading or saving circuit diagrams
EZSoft
Overview with stand-alone display/operating unit
Device version
What Happens If ...?
Messages from the EZ system
Possible situations when creating circuit diagrams
Event
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231
231
232
234
234
236
237
238
239
240
240
241
242
242
242
244
245
248
249
250
251
251
252
254
7
EZ500_700.book Page 8 Tuesday, May 3, 2005 5:15 PM
8
Appendix
Dimensions
Technical Data
– General
– Special approvals
– Power supply
– Inputs
– Relay outputs
– Transistor outputs
List of the function relays
– Usable contacts
– Available function relays
– Names of relays
– Names of function relay
– Name of function block inputs
(constants, operands)
– Memory card attributes
255
255
258
258
260
261
262
268
270
273
273
274
275
275
Glossary
277
Index
281
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276
276
MN05013003E
EZ500_700.book Page 9 Tuesday, May 3, 2005 5:15 PM
About This Manual
This manual describes the installation, commissioning and
programming (circuit diagram generation) of the EZ500 and
EZ700 control relay.
Specialist electrical training is needed for commissioning and
creating circuit diagrams. When active components such as
motors or pressure cylinders are controlled, parts of the
system can be damaged and persons put at risk if the device
is connected or programmed incorrectly.
Device designation
This manual uses the following abbreviated designations for
different EZ models:
EZ512-..-..., EZ7..-..-...
Type designation of the control relay, the dots represent
placeholders for all characters used.
EZ500 for
EZ512-AB-..., EZ512-AC-..., EZ512-DA-... and EZ512-DC-...
EZ700 for
EZ719-AB-..., EZ719-AC-..., EZ719-DA-..., EZ719-DC-... and
EZ721-DC-...
EZ-AB for
EZ512-AB-...
EZ719-AB-...
EZ-AC for
EZ512-AC-...
EZ618-AC-RE and EZ719-AC-...
EZ-DA for
EZ512-DA-...
EZ719-DA-...
EZ-DC for
EZ512-DC-...
EZ6..-DC-..., EZ719-DC-... and EZ721-DC-...
MN05013003E
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9
EZ500_700.book Page 10 Tuesday, May 3, 2005 5:15 PM
About This Manual
EZ-E for
EZ2.._RE, EZ618-AC-RE, EZ618-DC-RE and EZ620-DC-TE
EZSoft for EZSoftBasic and EZSoft
Writing conventions
Symbols used in this manual have the following meanings:
X indicates actions to be taken.
Attention!
Warns of a hazardous situation that could result in damage
to the product or components.
Caution!
Warns of the possibility of serious damage and slight injury.
Warning!
Warns of the possibility of a hazardous situation that could
result in major damage and serious or fatal injury or even
death.
J
Indicates interesting tips and additional information
For greater clarity, the name of the current chapter is shown
in the header of the left-hand page and the name of the
current section in the header of the right-hand page. Pages at
the start of a chapter and empty pages at the end of a chapter
are exceptions.
10
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MN05013003E
EZ500_700.book Page 11 Tuesday, May 3, 2005 5:15 PM
1
Target readership
EZ
EZ must only be installed and connected up by trained
electricians or other persons who are familiar with the
installation of electrical equipment.
Specialist electrical training is needed for commissioning and
creating circuit diagrams. When active components such as
motors or pressure cylinders are controlled, parts of the
system can be damaged and persons put at risk if EZ is
connected or programmed incorrectly.
Proper use
EZ is a programmable switching and control device and is
used as a replacement for relay and contactor control circuits.
EZ may only be operated when it has been correctly and
properly installed.
• EZ is designed to be installed in an enclosure, switch
cabinet or service distribution board. Both the power feed
and the signal terminals must be laid and covered so as to
prevent accidental contact.
• The installation must comply with regulations for
electromagnetic compatibility (EMC).
• The starting up of EZ should not cause any hazards arising
from controlled devices, such as unexpected motor startups
or power ups.
Improper use
EZ should not be used as a substitute for safety-related
controls such as burner or crane controls, emergency-stop or
two-hand safety controls.
MN05013003E
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11
EZ500_700.book Page 12 Tuesday, May 3, 2005 5:15 PM
EZ
Overview
2
3
4
1
2
5
10
POW
6
BUS
POWER
COM-ERR
7
ADR
ERR
8
MS
NS
Figure 1:
12
9
EZ basic units and expansion devices
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MN05013003E
EZ500_700.book Page 13 Tuesday, May 3, 2005 5:15 PM
Overview
Legend for figure 1:
 EZ500 basic unit
 EZ700 I/O expansion
‘ EZ202-RE output expansion
’ EZ200-EZ coupling device
“ EZ-LINK-DS data connector
” EZ204-DP PROFIBUS-DP slave gateway
• EZ205-ASI AS-Interface slave gateway
– EZ221-CO CANopen gateway
— EZ222-DN DeviceNet gateway
˜ EZ700 basic unit
EZ is an electronic control relay with logic functions, timer,
counter and time switch functions. It is also a control and input
device in one that can perform many different tasks in
domestic applications as well as in machine building and plant
construction.
Circuit diagrams are connected up using ladder diagrams,
and each element is entered directly via the EZ display. For
example, you can:
•
•
•
•
•
•
•
•
•
•
•
•
•
MN05013003E
Connect make and break contacts in series and in parallel
Connect output relays and markers,
Use outputs as relays, impulse relays or latching relays
Use multi-function timing relays with different functions
Use up and down counters,
Count high-speed counter pulses
Measure frequencies
Process analog inputs, EZ-AB, EZ-DA, EZ-DC, (EZ512..:
two analog inputs, EZ700: four analog inputs)
Display any texts with variables, enter setpoints
Use year time switches, 7-day time switches, EZ…-..-.C(X),
Count operating hours (four retentive operating hours
counters integrated)
Track the flow of current in the circuit diagram
Load, save and password-protect circuit diagrams
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13
EZ500_700.book Page 14 Tuesday, May 3, 2005 5:15 PM
EZ
If you prefer to wire up EZ from a PC, then use EZSoft. EZSoft
allows you to create and test your circuit diagram on the PC.
EZSoft is also used to print out your circuit diagram in DIN,
ANSI or EZ format.
14
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MN05013003E
EZ500_700.book Page 15 Tuesday, May 3, 2005 5:15 PM
Overview
Models
EZ basic units at a glance
햲
DEL
햳
ALT
햸
햴
햵
ESC
DEL
OK
ALT
햶
ESC
Figure 2:


‘
’
“
”
•
MN05013003E
OK
햷
Models
Power supply
Inputs
Status LED
Buttons
Interface socket for memory card or PC connection
Outputs
LCD display
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15
EZ500_700.book Page 16 Tuesday, May 3, 2005 5:15 PM
EZ
EZ basic units with stand-alone EZD-80.., EZD-CP4-500 HMI
unit
1
2
3
4
3
Figure 3:


‘
’
16
Overview with stand-alone HMI unit
EZ500 basic units
EZ700 basic units
EZD device
Power supply/communication module with EZD-CP4-500
interface cable
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MN05013003E
EZ500_700.book Page 17 Tuesday, May 3, 2005 5:15 PM
Overview
Type reference
EZ
x xx -xx-x x x
LCD display: X = No display
Time switch: C = Available; E = Expansion
Output type:
R = Relay (max. 8 A)
T = Transistor (0.5 A, parallel connection possible up to 2 A)
Supply voltage, device and inputs
AB = 24 V AC (2, (4) inputs, also usable as 0 to 10 V analog inputs)
AC = 100, 120, 230, 240 V AC
DC = 24 V DC (2 (4) inputs, also usable as 0 to 10 V analog inputs)
DA = 12 V DC (2 (4) inputs, also usable as 0 to 10 V analog inputs)
Number of inputs/outputs (+ expansion)
12 = 8 I/4 O
18 = 12 I/6 O
19 = 12 I/6 O + expansion
20 = 12 I/8 O
21 = 12 I/8 O + expansion
Rating class (RC) and space unit (SU)
2 = 35.5 mm (SU)
5 = 71.5 mm (4 SU), RC = 4 or 5
6, 7= 107.5 mm (6 SU), RC = 6 or 7
EZ control relay
MN05013003E
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17
EZ500_700.book Page 18 Tuesday, May 3, 2005 5:15 PM
EZ
EZ operation
Buttons
ALT
DEL
DEL: Delete object in circuit diagram
ALT: Special functions in circuit diagram, Status display
Cursor buttons ú í ÍÚ:
OK
ESC
Move cursor
Select menu items
Set contact numbers, contacts and values
OK: Next menu level, Save your entry
ESC: Previous menu level, Cancel
Moving through menus and choosing values
Show System menu
and
Go to next menu level
Select menu item
Store your entry
Return to last menu level
Cancel your entry since the last OK
ÍÚ
ú í
Change menu item
Change value
Change position
P button function (if enabled):
ú
í
18
Input P1
Input P3
Í Input P2
Ú Input P4
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MN05013003E
EZ500_700.book Page 19 Tuesday, May 3, 2005 5:15 PM
Overview
Selecting main and system menu
Status display
EZ500: 8 inputs, 4 outputs
I .2..5.....
P1.2
MO 02:00
RS
..34 .
RUN
MO
.2 6..
Current selection flashes in
the EZ menu
Clock menu on
devices with clock
and
No
password
PROGRAM...
STOPå RUN
PARAMETER
INFO...
SET CLOCK
SECURITY...
SYSTEM...
LANGUAGE...
1st menu level
1st menu level
Main menu
EZ500 or EZ700 System
menu
SECURITY...
SYSTEM...
LANGUAGE...
CONFIGURATOR
The CONFIGURATOR menu
appears if a configurable
expansion module is connected
such as EZ204-DP
(PROFIBUS-DP bus gateway)
MN05013003E
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19
EZ500_700.book Page 20 Tuesday, May 3, 2005 5:15 PM
EZ
Toggling between weekday, time display and date display
(only on devices with clock)
.2..5.......
PMO 11:50
..34
RUN
.2..5.......
P01.04.2004
..34
RUN
EZ Status display
.2..5.......
PMO 11:50
Q ..34..STOP
Inputs
Weekday/Time
Outputs
1.......9...
RS
.2..5......
P01.04.2002
Q ..34..STOP
EZ500: input 1 to 8,
EZ700: input 1 to 12
AC P-
MO 10:42
1.....7. RUN
On: 1, 2, 3, 4
/Off:…
or Weekday/Date
RUN/STOP mode
EZ500: output 1 to 4,
EZ700: output 1 to 6 or 8
Status display for local expansion
Inputs
Expansion
Weekday/Time
Outputs
1.......9...
RS
AC P-
MO 10:42
1.....7. RUN
or Weekday/Date
On: 1, 2, 3, 4/Off:…
RS = Expansion functioning correctly
20
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MN05013003E
EZ500_700.book Page 21 Tuesday, May 3, 2005 5:15 PM
Overview
Advanced Status display
12...6.89...
Retention/Debounce
RE
I
AC P-
17.03.04
ST
123.5.78 RUN
RE
I
AC
DC
GW
ST
AC expansion ok/P buttons
Startup behavior
:
:
:
:
:
Retention switched on
Debounce switched on
AC expansion functioning correctly
DC expansion functioning correctly
Bus coupling module detected
GW flashes: Only EZ200-EZ detected. I/O expansion not detected.
17.03.04 Display of actual device date
: When the power supply is switched on, EZ switches to STOP mode
EZ LED display
EZ512-..-..X, EZ700 and EZ-E feature an LED on the front
indicating the status of the power supply as well as whether
RUN or STOP mode is active (J figure 2, page 15).
MN05013003E
LED OFF
No power supply
LED
continuously lit
Power supply present, STOP mode
LED flashing
Power supply present, RUN mode
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21
EZ500_700.book Page 22 Tuesday, May 3, 2005 5:15 PM
EZ
Menu structure
Main menu without password protection
XYou access the main menu by pressing OK.
STOP: Circuit diagram
display
Main menu
PROGRAM....Æ
STOP å RUN
PARAMETER
INFO...
æ
SET CLOCK..
PROGRAM...
DELETE PROG
CARD
The
arrows
indicate
that there
are more
than four
menus.
Circuit diagram
Parameter display
SAVE
CANCEL
PROGRAM...
DELETE PROG
CARD...
PROGRAM...
DELETE PROG
CARD...
DELETE ?
DEVICE-CARD
CARD-DEVICE
DELETE CARD
DEVICE-CARD
CARD-DEVICE
DELETE CARD
DEVICE-CARDE
CARD-DEVICE
DELETE CARD
22
Parameters
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REPLACE ?
REPLACE ?
DELETE ?
MN05013003E
EZ500_700.book Page 23 Tuesday, May 3, 2005 5:15 PM
Overview
Main menu
PROGRAM....Æ
STOP
RUN å
PARAMETER
INFO...
æ
SET CLOCK..
PROGRAM....Æ
STOP
RUN å
PARAMETER...
INFO...
æ
SET CLOCK..
PROGRAM....Æ
STOP
RUN å
PARAMETER...
INFO...
æ
SET CLOCK..
PROGRAM...
STOP
RUN Æ
PARAMETER
INFO...
SET CLOCK.æ
MN05013003E
Parameter display
T1 X
T2 Ü
C1 N
O1
S +
M:S +
+
+
T1 X
S +
S1 10.000
S2 +0
T:
Information display of the device
DC TC LCD
OS: 1.00.027
CRC: 02752
Display for date and time setting
SET CLOCK..
SUMMER
TIME..
HH:MM
DD.MM
YEAR
--:---.-____
For more information visit: www.EatonElectrical.com
HH:MM
DD.MM
YEAR
14:23
17.03
2004
23
EZ500_700.book Page 24 Tuesday, May 3, 2005 5:15 PM
EZ
Main menu
Only one selection is possible.
PROGRAM...
STOP
RUN Æ
PARAMETER...
INFO...
SET CLOCK.æ
SET CLOCK..
SUMMER TIME.
SET CLOCK..
SUMMER TIME.
SET CLOCK..
SUMMER TIME.
SET CLOCK..
SUMMER TIME.
24
NONE
RULE...
EU
GB
US
åÆ
NONE
RULE...
EU
GB
US
Æ
æ
æ
SUMMER START
SUMMER END
AM
WD:
--Æ
--DD.MM:00.00æ
HH:MM:00:00
DIFF: 0:00
NONE
RULE...
EU
GB
US
Æ
å
NONE
RULE...
EU
GB
US
Æ
å
æ
SUMMER START
SUMMER END
SUMMER START
SUMMER END
æ
For more information visit: www.EatonElectrical.com
AM
WD:
--Æ
--DD.MM:00.00æ
HH:MM:00:00
DIFF: 0:00
MN05013003E
EZ500_700.book Page 25 Tuesday, May 3, 2005 5:15 PM
Overview
Main menu with password protection
Main menu
Unlocking EZ Password entry
PASSWORD.. Æ
STOP
RUN å
PARAMETER...
INFO...
æ
SET CLOCK..
DELETE ALL
Password
Example:
Password only
on program
Four wrong entries
(if enabled)
Status display
PASSWORD...
STOP RUN å
Correct entry
EZ System menu
The System menu is accessed by simultaneously pressing
DEL and ALT.
Password setup
System menu
Password entry
SECURITY...
SYSTEM...
LANGUAGE...
CONFIGURATOR
Change/
delete
password
MN05013003E
PASSWORD...
RANGE...
ENTER PASSW:
XXXX
CHANGE PW
ACTIVATE PW
ACTIVATE PW
CHANGE PW
ENTER PASSW:
XXXX
CHANGE PW
ACTIVATE PW
PASSWORD...
RANGE...
PROGRAM å Æ
PARAMETER
TIME
MODE
æ
INTERFACE
DEL PROG
PROGRAM å Æ
PARAMETER å
TIME å
MODE
æ
INTERFACE å
DEL PROG
å
For more information visit: www.EatonElectrical.com
25
EZ500_700.book Page 26 Tuesday, May 3, 2005 5:15 PM
EZ
System menu
SECURITY...
SYSTEM...
LANGUAGE...
CONFIGURATOR
DEBOUNCE å
P-BUTTONS
RUN MODE å
CARD MODE
SECURITY...
SYSTEM...
LANGUAGE...
CONFIGURATOR
ENGLISH
Æ
DEUTSCH
å
FRANCAIS
ESPANOL
æ
ITALIANO
PORTUGUES
NEDERLANDS
SVENSKA
POLSKI
TURKCE
CESKY
MAGYAR
SECURITY...
SYSTEM...
LANGUAGE...
CONFIGURATOR
26
Only one selection is possible.
The further menus depend on the
connected expansion device
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MN05013003E
EZ500_700.book Page 27 Tuesday, May 3, 2005 5:15 PM
Overview
Selecting or toggling between menu items
Cursor Í Ú
PROGRAM...
STOP
PARAMETER
INFO
Select or toggle
Cursor display
MN05013003E
HH:MM
DD.MM
YEAR
'4:23
17.03
2004
HH:MM
DD.MM
YEAR
14:23
17.03
2004
The cursor flashes.
Full cursor Ê/:
• Move cursor with ú í,
• in circuit diagram also with Í Ú
Value M/ M
• Change position with ú í
• Change values with Í Ú
Flashing values/menus are shown in gray in this manual.
For more information visit: www.EatonElectrical.com
27
EZ500_700.book Page 28 Tuesday, May 3, 2005 5:15 PM
EZ
Setting values
HH:MM
DD.MM
YEAR
14:23
17.03
2004
Values
Digits
Current value at the
position (can be
changed, Cursor = 3)
28
Select value Í Ú
Select digit ú í
Change value at digit ÍÚ
Store entries
Retain previous value
For more information visit: www.EatonElectrical.com
MN05013003E
EZ500_700.book Page 29 Tuesday, May 3, 2005 5:15 PM
2
Installation
EZ must only be installed and wired up by trained electricians
or other persons familiar with the installation of electrical
equipment.
Danger of electric shock
Never carry out electrical work on the device while the
power supply is switched on.
Always follow the safety rules:
•
•
•
•
Switch off and isolate
Secure against reclosing
Ensure that the device is no longer live
Cover adjacent live parts
EZ is installed in the following order:
•
•
•
•
•
Mounting
If necessary connect devices together
Mounting
Wiring up the inputs
Wiring up the outputs
Connecting the power supply
Install EZ in a control cabinet, service distribution board or in
an enclosure so that the power feed and terminal connections
cannot be touched accidentally during operation.
Clip EZ onto a DIN EN 50022 top-hat rail or fix EZ in place
using fixing brackets. EZ can be mounted vertically or
horizontally.
J
MN05013003E
When using EZ with expansion units, connect the
expansion concerned before mounting (J page 32).
For more information visit: www.EatonElectrical.com
29
EZ500_700.book Page 30 Tuesday, May 3, 2005 5:15 PM
Installation
30
For ease of wiring, leave a gap of at least 30 mm between EZ
terminals and the wall or adjacent devices.
30
30
30
Figure 1:
1
Clearances to EZ
Mounting on top-hat rail
XHook EZ to the top edge of the top-hat rail and hinge into
place while pressing down slightly. Press the device lightly
downwards and against the top-hat rail until it snaps over
the lower edge of the top-hat rail.
EZ will clip into place and will be secured by the built-in spring
mechanism.
XCheck that the device is seated firmly.
EZ is mounted vertically on a top-hat rail in the same way.
2
30
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MN05013003E
EZ500_700.book Page 31 Tuesday, May 3, 2005 5:15 PM
Mounting
Using a mounting plate
Mounting on a mounting plate requires the use of fixing
brackets which are fixed to the back of EZ. The fixing brackets
are available as an accessory.
EZ700: Fasten each device with at least three fixing brackets.
EZ200-EZ:
EZ500:
EZ700:
Figure 2:
MN05013003E
Using a mounting plate
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31
EZ500_700.book Page 32 Tuesday, May 3, 2005 5:15 PM
Installation
Connecting the expansion
device
1
2
4
3
Figure 3:
32
Connecting expansion units
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MN05013003E
EZ500_700.book Page 33 Tuesday, May 3, 2005 5:15 PM
Terminals
XOpen the EZ-LINK connections on the side of both EZ
devices.
XFit the EZ-LINK data connector EZ-LINK-DS in the opening
provided on the expansion device.
XPlug the devices together.
XProceed in the reverse order to dismantle the device.
Terminals
Tools
Slot-head screwdriver, width 3.5 mm, tightening torque
0.6 Nm.
Cable cross-sections
• Solid: 0.2 to 4 mm2
• Flexible with ferrule: 0.2 to 2.5 mm2
Connecting the power
supply
J
The required connection data for device types, EZ-AB with
24 V AC, EZ-AC with standard voltages of 100 V AC, EZDA with 12 V DC and EZ-DC with 24 V DC are provided in
the section “Technical Data”, page 258.
The EZ500 and EZ700 basic units run a system test for two
seconds after the power supply has been switched on.
Either RUN or STOP mode will be activated after these two
seconds, depending on the default setting.
Cable protection
Connect on EZ cable protection (F1) rated for at least 1 A
(slow).
MN05013003E
For more information visit: www.EatonElectrical.com
33
EZ500_700.book Page 34 Tuesday, May 3, 2005 5:15 PM
Installation
Supplying AC units
Supplying AC basic units
EZ…-AB-RC(RCX), EZ…-AC-R(RC, RCX)
L
N
F1
L
Figure 4:
N
N
Power supply on the AC basic units
Supplying AC expansion units
EZ…-AC-.E
L
N
F1
E+ E-
Figure 5:
34
R1
...
R12 L
N
N
Power supply on the AC expansion units
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MN05013003E
EZ500_700.book Page 35 Tuesday, May 3, 2005 5:15 PM
Connecting the power supply
Applies to EZ-AC devices with a power supply greater
than 24 V AC:
• The voltage terminals for phase L and neutral conductor
N have been reversed.
• This enables the EZ interface (for memory card or PC
connection) to have the full connection voltage of the
phase conductor (100 to 240 V AC).
• There is a danger of electric shock if the connection at the
EZ interface is not properly connected or if conductive
objects are inserted into the socket.
Attention!
A short current surge will be produced when switching on
for the first time. Do not switch on EZ by means of reed
contacts since these may burn or melt.
Supplying DC units
Supplying DC basic units
EZ…-DA-RC(X), EZ…-DC-R(RC,RCX)
L01⫹
L01⫺
F1
+...V 0 V
0V
DC : +24 V
DA : +12 V
Figure 6:
MN05013003E
Power supply on the DC basic units
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35
EZ500_700.book Page 36 Tuesday, May 3, 2005 5:15 PM
Installation
Supplying DC expansion units
EZ…-DC-.E
L01+
L01F1
E+ E-
Figure 7:
J
R1
...
R12 24V 0V 0V
24 V
Power supply on the DC expansion units
EZ-DC and EZ-DA are protected against reverse polarity.
To ensure that EZ works correctly, ensure that the polarity
of each terminal is correct.
Cable protection
Connect on EZ a cable protection (F1) rated for at least 1 A
(slow).
J
36
When EZ is switched on for the first time, its power supply
circuit behaves like a capacitor. Use an appropriate device
for switching on the power supply and do not use any reed
relay contacts or proximity switches.
For more information visit: www.EatonElectrical.com
MN05013003E
EZ500_700.book Page 37 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
Connecting the inputs
EZ inputs switch electronically. Once you have connected a
contact via an input terminal, you can reuse it as a contact in
your EZ circuit diagram as often as you like.
L
+24 V
S1
N
0V
I1
I1
Figure 8:
i1
Connecting the inputs
Connect to the EZ input terminals contacts such as
pushbuttons, switches, relay or contactor contacts, proximity
switches (three-wire).
Connecting EZ AC digital inputs
Caution!
Connect the inputs for AC devices in compliance with the
safety regulations of the VDE, IEC, UL and CSA. Use the
same phase conductor for the input power feed, otherwise
EZ will not detect the switching level and may be damaged
or destroyed by overvoltage.
MN05013003E
For more information visit: www.EatonElectrical.com
37
EZ500_700.book Page 38 Tuesday, May 3, 2005 5:15 PM
Installation
Connecting EZ AC digital inputs on the basic unit
L
N
F1
L
Figure 9:
N
N
l1
I2
I7
Connecting EZ-AC and EZ-AB digital inputs
Connecting AC digital inputs on the expansion device
L
N
F1
E+ E-
Figure 10:
38
R1 R2 R3 R4
R5
R6
R7 R8 R9
R10 R11 R12
L
N
N
Connecting EZ...-AC-E digital inputs
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MN05013003E
EZ500_700.book Page 39 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
Table 1:
EZ-AB input signal values
Input signal voltage range
Input current
OFF signal
ON signal
0 to 6 V AC
14 to 26.4 V AC
4 mA at 24 V AC
EZ500/
EZ700
I1 to I6
I7, I8
greater than 7 V AC
or greater than
9.5 V DC
2 mA with 24 V AC and
24 V DC
EZ700
I9, I10
14 to 26.4 V AC
4 mA at 24 V AC
I11, I12
greater than 7 V AC
or greater than
9.5 V DC
2 mA with 24 V AC and
24 V DC
Table 2:
EZ-AC input signals
Input signal voltage range
EZ500/
EZ700
I1 to I6
OFF signal
ON signal
0 to 40 V
79 to 264 V
Input current
0.5 mA at 230 V AC/0.25
mA at 115 V AC
I7, I8
6 mA at 230 V AC/4 mA
at 115 V
EZ700
I9 to I12
EZ600
R1 to
R12
0.5 mA at 230 V AC/0.25
mA at 115 V AC
Cable lengths
Severe interference can cause a “1” signal on the inputs
without a proper signal being applied. Observe therefore the
following maximum cable lengths:
I1 to I6
40 m without additional circuit
I7, I8
100 m without additional circuit
I9 to I12
40 m without additional circuit
R1 to R12
MN05013003E
For more information visit: www.EatonElectrical.com
39
EZ500_700.book Page 40 Tuesday, May 3, 2005 5:15 PM
Installation
For longer lengths connect in series a diode (e.g. 1N4007) for
1 A, min. 1000 V reverse voltage, to the EZ input. Ensure that
the diode is pointing towards the input as shown in the circuit
diagram, otherwise EZ will not detect the 1 state.
L
N
F1
L
Figure 11:
N
N
I1
AC input with suppression diode for EZ-AC and EZ-AB
EZ-AC:
Inputs I7 and I8 have a higher input current on the EZ-AC.
Neon bulbs with a maximum residual current of 2 mA/1 mA at
230 V/115 V can be connected to I7 and I8.
J
Always use neon bulbs that are operated with a separate N
connection.
Caution!
Do not use reed relay contacts at I7, I8. These may burn or
melt due to the high inrush current of I7, I8.
Two-wire proximity switches have a residual current with the
“0” state. If this residual current is too high, the EZ input may
only detect a “1” signal.
Therefore, use inputs I7 and I8. An additional input circuit is
required if more inputs are used.
40
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MN05013003E
EZ500_700.book Page 41 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
Increasing the input current
The following input circuit can be used in order to prevent
interference and also when using two-wire proximity switches:
L
N
F1
100 nF/275 V h
L
Figure 12:
J
N
N
I1
Increasing the input current
When using a 100 nF capacitor the drop-off time of the input
increases by 80 (66.6) ms at 50 (60) Hz.
A resistor can be connected in series with the circuit shown in
order to restrict the inrush current.
L
N
F1
1 kO
L
Figure 13:
MN05013003E
N
N
100 nF/275 V h
I1
Limitation of the input current with a resistor
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41
EZ500_700.book Page 42 Tuesday, May 3, 2005 5:15 PM
Installation
Complete devices for increasing the input current are
available under the type reference EZ256-HCI.
L
N
F1
L
N
N
Figure 14:
J
1
I1
N
EZ with EZ256-HCI
The increased capacitance increases the drop-off time by
approx. 40 ms.
Connecting EZ DC digital inputs
Use input terminals I1 to I12, R1 to R12 to connect pushbutton
actuators, switches or 3 or 4-wire proximity switches. Given
the high residual current, do not use 2-wire proximity
switches.
42
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MN05013003E
EZ500_700.book Page 43 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
Connecting DC digital inputs on the basic unit
L01⫹
L01⫺
F1
+...V
0V
l1
I2
I7
DC : +24 V
DA : +12 V
Figure 15:
Connecting EZ-DC, EZ-DA digital inputs
Connecting DC digital inputs on the expansion device
+24 V
0V
F1
E+ E-
R1 R2 R3 R4
R5
R6
R7 R8 R9
R10 R11 R12 +24V 0V 0V
Input 24 V
24 V
EZ…-DC-.D
Figure 16:
MN05013003E
Connecting EZ...-DC-E digital inputs
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43
EZ500_700.book Page 44 Tuesday, May 3, 2005 5:15 PM
Installation
Table 3:
EZ-DC input signals
Input signal voltage range
Input current
OFF signal
ON signal
0 to 5 V
15 to 28.8 V
3.3 mA at 24 V DC
EZ500/
EZ700
I1 to I6
I7, I8
greater than 8 V DC
2.2 mA at 24 V
EZ700
I9, I10
15 to 28.8 V
3.3 mA at 24 V DC
I11, I12
greater than 8 V DC
2.2 mA at 24 V
R1 to
R12
15 to 28.8 V
3.3 mA at 24 V DC
EZ600
Table 4:
EZ-DA input signals
Input signal voltage range
OFF signal
ON signal
0 to 4 V DC
8 to 15.6 V DC
Input current
EZ500/
EZ700
I1 to I6
3.3 mA at 12 V
I7, I8
1.1 mA at 12 V
EZ700
I9, I10
3.3 mA at 12 V
I11, I12
1.1 mA at 12 V
Connecting EZ DC analog inputs
The EZ-AB, EZ-DA and EZ-DC basic units are provided with
analog inputs. Inputs I7 and I8, and if present I11 and I12, can
be used to connect analog voltages ranging from 0 V to 10 V.
A simple additional circuit also allows the analog evaluation of
currents from 0 to 20 mA. The analog input signals are
converted to 10-bit digital signals.
The following applies:
• 0 V DC corresponds to a digital 0.
• 5 V DC corresponds to a digital value of 512.
• 10 V DC corresponds to a digital value of 1023.
44
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MN05013003E
EZ500_700.book Page 45 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
Caution!
Analog signals are more sensitive to interference than
digital signals. Consequently, greater care must be taken
when laying and connecting the signal lines.
Incorrect switching states may occur if they are not
connected correctly.
Safety measures with analog signals
XUse shielded twisted pair cables to prevent interference
with the analog signals.
XFor short cable lengths, ground the shield at both ends
using a large contact area. If the cable length exceeds 30 m
or so, grounding at both ends can result in equalization
currents between the two grounding points and thus in the
interference of analog signals. In this case, only ground the
cable at one end.
XDo not lay signal lines parallel to power cables.
XConnect inductive loads to be switched via the EZ outputs
to a separate power feed, or use a suppressor circuit for
motors and valves. If loads such as motors, solenoid valves
or contactors are operated with EZ via the same power
feed, switching may result in interference on the analog
input signals.
The following four circuits contain examples of applications for
analog value processing.
Caution!
Ensure that the reference potential is connected. Connect
the 0 V of the power supply unit for the different setpoint
potentiometers and sensors shown in the examples to the
0 V and neutral conductor terminal (EZ-AB) of the EZ power
feed. Otherwise incorrect switching states may occur if they
are not connected correctly.
MN05013003E
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45
EZ500_700.book Page 46 Tuesday, May 3, 2005 5:15 PM
Installation
Power supply of EZ-AB devices and analog inputs
With EZ-AB devices that process analog signals, the device
must be fed via a transformer so that the device is isolated
from the mains supply. The neutral conductor and the
reference potential of the DC power feed of analog sensors
must be electrically connected.
J
Ensure that the common reference potential is grounded or
monitored by a ground fault monitoring device. Observe the
requirements of the relevant regulations.
L1
N
~
0V
+12 V
L01h
F1
N01 h
L
Figure 17:
46
N
N
I1
I7
I8
EZ-AB analog input, connection of reference potentials
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MN05013003E
EZ500_700.book Page 47 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
Analog setpoint potentiometer, EZ-AB, EZ-DA, EZ-DC
~
F1
0V
+...V
L
Figure 18:
0V
N
+12 V
I7
0V
N
Analog setpoint potentiometer with own power feed
Use a potentiometer with a resistance of
0.25 W.
1 kΩ, e.g. 1 kΩ,
EZ-DC analog setpoint potentiometer
L01⫹
L01⫺
1.3 kO/0.25 W
F1
1 kO/0.25 W
+...V 0 V
0V
I7
DC : +24 V
DA : +12 V
Figure 19:
MN05013003E
Analog setpoint potentiometer with 24 V DC power feed
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47
EZ500_700.book Page 48 Tuesday, May 3, 2005 5:15 PM
Installation
Brightness sensor, EZ-AB, EZ-DA, EZ-DC
~
12 V
0...10 V
F1
0V
0V
+...V
L
0V
N
Figure 20:
+12 V
I7
0V
N
Connection of a brightness sensor, analog input
Temperature sensor, EZ-DA, EZ-DC
+24 V
–0 V
Out
0...10 V
F1
+...V
L
Figure 21:
48
0V
N
0V
N
–35...55 ˚C
I7
Connection of the temperature sensor, analog input
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MN05013003E
EZ500_700.book Page 49 Tuesday, May 3, 2005 5:15 PM
Connecting the inputs
20 mA sensor
4 to 20 mA (0 to 20 mA) sensors can be connected easily
without any problem using an external 500 Ω resistor.
L01⫹
L01⫺
햲
F1
4...20 mA
500
+...V
0V
0V
I7
DC : +24 V
DA : +12 V
Figure 22:
Connection 0 (4) to 20 mA sensor output, analog input
Analog sensor
The following values apply:
• 4 mA = 1.9 V
• 10 mA = 4.8 V
• 20 mA = 9.5 V
(Based on U = R × I = 478 Ω × 10 mA ~ 4.8 V).
Connecting high-speed counters and frequency
generators
High-speed counter signals and frequencies on the EZ-DA
and EZ-DC can be counted accurately on inputs I1 to I4
independently of the cycle time. These inputs are permanently
assigned to counters.
The following applies:
• I1 = C13 high-speed up/down counter
• I2 = C14 high-speed up/down counter
MN05013003E
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49
EZ500_700.book Page 50 Tuesday, May 3, 2005 5:15 PM
Installation
• I3 = C15 frequency counter
• I4 = C16 frequency counter
Pulse shape of count signals:
EZ processes square wave signals.
Mark-to-space ratio of count signals:
We recommend a mark-to-space ratio of 1:1.
If this is not the case:
The minimum pulse or pause duration is 0.5 ms.
tmin = 0.5 × (1/fmax)
tmin = minimum time of the pulse or pause duration
fmax = maximum count frequency (1 kHz)
L01 +
L01 –
L02 +
F1
...V
0V
0V
I1
I2
I3
I4
I5
I6
24 V H
Figure 23:
50
Connecting high-speed counters and frequency
generators
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MN05013003E
EZ500_700.book Page 51 Tuesday, May 3, 2005 5:15 PM
Connecting the outputs
J
Inputs that are used as high-speed counter inputs should
not be used in the circuit diagram as contacts. If the counter
frequency is high:
Not all the signals of the high-speed counter can be
monitored for processing in the circuit diagram. EZ will only
process a randomly logged state.
Connecting the outputs
The Q outputs function inside EZ as isolated contacts.
Q1
1
Figure 24:
2
Output Q
The associated relay coils are controlled in the EZ circuit
diagram via the following outputs.
• Q1 to Q4 and Q1 to Q8 (Q6), basic units
• S1 to S8 (S6), expansion devices
You can use the signal states of the outputs as make or break
contacts in the EZ circuit diagram to provide additional
switching conditions.
The relay or transistor outputs are used to switch loads such
as fluorescent tubes, filament bulbs, contactors, relays or
motors. Check the technical thresholds and data of the
outputs before installation (J section “Technical Data”,
page 258).
MN05013003E
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51
EZ500_700.book Page 52 Tuesday, May 3, 2005 5:15 PM
Installation
Connecting relay outputs
EZ512-..-R..
1
2
1
Q1
1
2
2
Q3
Q2
1
2
L
R
Q4
24 V H 8 A
115 V h 8 A
230 V h 8 A
10 000 000
2A
2A
2A
1000 W
0 V H, N
10 x 58 W
25 000
F 8 A/B 16
L1, L2, L3 (115/230 V h)
+ 24 V H
Figure 25:
EZ512-..-R.. relay outputs
EZ7..-..-R.. and
1 2
Q1
1 2
Q2
1 2
Q3
1 2
Q4
1 2
Q5
EZ202-RE
1 2
1
Q6
S1
10 000 000
1 2
S2
10 000 000
0 V H, N
0 V H, N
F 8 A/B 16
F 8 A/B 16
L1, L2, L3 (115/230 V h)
+ 24 V H
L1, L2, L3 (115/230 V h)
+ 24 V H
Figure 26:
52
2
EZ7..-..-R.. relay outputs and EZ202-RE
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MN05013003E
EZ500_700.book Page 53 Tuesday, May 3, 2005 5:15 PM
Connecting the outputs
EZ618-..-RE
1 2
S1
1 2
S2
1 2
S3
1 2
1 2
S4
S5
1 2
S6
10 000 000
R
24 V H 8 A
115 V h 8 A
230 V h 8 A
2A
2A
2A
1000 W
0 V H, N
10 x 58 W
25 000
F 8 A/B 16
L1, L2, L3 (115/230 V h)
+ 24 V H
Figure 27:
EZ618-..-RE.. relay outputs
Unlike the inputs, the outputs can be connected to different
phases.
Warning!
Do not exceed the maximum voltage of 250 V AC on a relay
contact.
If the voltage exceeds this threshold, flashover may occur
at the contact, resulting in damage to the device or a
connected load.
MN05013003E
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53
EZ500_700.book Page 54 Tuesday, May 3, 2005 5:15 PM
Installation
Connecting transistor outputs
EZ512-..-T..
+24 VQ
0 VQ
Q1 Q2
Q3 Q4
F10 A
0VH
f 2.5 A
+ 24 V H
20.4 – 28.8 V H
Figure 28:
24 V
R
L
0.5 A
0.5 A
5 W/24 V
EZ512-..-T.. transistor outputs
EZ7..-..-T..
+24 VQ
0 VQ
Q1 Q2
Q3 Q4
Q5 Q6
Q7 Q8
F10 A
0VH
R
f 2.5 A
+ 24 V H
(20.4 – 28.8 V H)
24 V H
0.5 A
0.5 A
5 W/24 V
Figure 29:
54
EZ7..-..-T.. transistor outputs
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MN05013003E
EZ500_700.book Page 55 Tuesday, May 3, 2005 5:15 PM
Connecting the outputs
EZ620-..-TE
S1 S2
S3 S4
S5 S6
S7
S8
+24 VQ
0VQ
F10 A
0VH
R
+ 24 V H
(20.4 – 28.8 V H)
24 V H
0.5 A
0.5 A
f 2.5 A
5 W/24 V
Figure 30:
EZ620-..-TE transistor outputs
Parallel connection:
Up to four outputs can be connected in parallel in order to
increase the power. The output current will increase in this
case to a maximum of 2 A.
Caution!
Outputs may only be connected in parallel within a group
(Q1 to Q4 or Q5 to Q8, S1 to S4 or S5 to S8), such as Q1
and Q3 or Q5, Q7 and Q8. Outputs connected in parallel
must be switched at the same time.
Caution!
Please note the following when switching off inductive
loads.
Suppressed inductive loads cause less interference in the
entire electrical system. For optimum suppression the
suppressor circuits are best connected directly to the
inductive load.
MN05013003E
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EZ500_700.book Page 56 Tuesday, May 3, 2005 5:15 PM
Installation
If inductive loads are not suppressed, the following applies:
Several inductive loads should not be switched off
simultaneously to avoid overheating the driver blocks in the
worst possible case. If in the event of an emergency stop the
+24 V DC power supply is to be switched off by means of a
contact, and if this would mean switching off more than one
controlled output with an inductive load, then you must
provide suppressor circuits for these loads (see the following
diagrams).
+ 24 V H
Q..
Uemax < Uz < 33 V
Q..
0VH
0VH
Figure 31:
Inductive load with suppressor circuit
Behavior with short-circuit/overload
Should a short circuit or overload occur on a transistor output,
this output will switch off. The output will switch on up to
maximum temperature after the cooling time has elapsed.
This time depends on the ambient temperature and the
current involved. If the fault condition persists, the output will
keep switching off and on until the fault is corrected or until the
power supply is switched off (J section “Monitoring of shortcircuit/overload with EZ..-D.-T..”, page 238).
56
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MN05013003E
EZ500_700.book Page 57 Tuesday, May 3, 2005 5:15 PM
Expanding inputs/outputs
Expanding inputs/outputs
You can add expansion units to the following EZ models in
order to increase the number of inputs and outputs:
Expandable EZ
basic units
Expansion units
EZ7..-..-R..
EZ7..-..-T..
EZ618-..-RE
115/230 V AC power supply
• 12 AC inputs,
• 6 relay outputs
24 V DC power supply
• 12 DC inputs,
• 6 relay outputs
EZ620-..-TE
• 12 DC inputs,
• 8 transistor outputs
EZ202-RE
2 relay outputs
Special expansion units
see current catalog
Local expansion
Local expansion units are connected directly next to the basic
unit.
XConnect the EZ expansion unit via the EZ-LINK connection.
EZ-LINK
EZ719-…
EZ721-…
Figure 32:
MN05013003E
EZ6…-TE
EZ6…-RE
EZ200-EZ
Connecting local expansion with EZ
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Installation
Warning!
The following electrical isolation is implemented between
the EZ7..-..-.C. basic unit and the expansion device
(isolation always in local connection of expansion unit)
• Basic isolation 400 V AC (+10 %)
• Safe isolation 240 V AC (+10 %)
Units may be destroyed if the value 400 V AC +10 % is
exceeded, and may cause the malfunction of the entire
system or machine!
J
Basic unit and expansion unit can be provided with different
DC power supplies.
Remote expansion
Remote expansion units can be installed and run up to 30 m
away from the basic unit.
Warning!
The two-wire or multi-core cable between units must have
the necessary insulation voltage required for the installation
environment concerned. In the event of a fault (ground
leakage, short-circuit) serious damage or injury to persons
may otherwise occur.
A cable such as NYM-0 with a rated operational voltage of
Ue = 300/500 V AC is normally sufficient.
58
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EZ500_700.book Page 59 Tuesday, May 3, 2005 5:15 PM
Expanding inputs/outputs
E+ E–
EZ6…-RE
EZ6…-TE
EZ719-…
EZ721-…
EZ200-EZ
E+ E–
Ue = 300/500 V
EZ…-AC-…E
Figure 33:
J
MN05013003E
Connecting remote expansion units to EZ
Terminals E+ and E- of the EZ200-EZ are protected against
short-circuits and polarity reversal.
Functionality is only ensured if “E+” is connected with “E+”
and “E-” with “E-”.
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Installation
Connecting bus systems
The EZ-LINK connection is designed to allow bus
connections, apart from I/O expansions. Special bus
connection devices are available for the bus systems in use.
J
Only one device (expansion device or bus connection) can
be connected to the EZ-LINK connection.
At present, EZ700 can communicate with the following bus
systems or networks:
•
•
•
•
AS-Interface (Actuator-Sensor Interface)
PROFIBUS-DP
CANopen
DeviceNet
The different bus systems offer different functions.
The following applies:
• As a minimum data exchange, the input data R1 to R16 and
output data S1 to S8 can be exchanged, provided that the
bus system supports this.
• If the bus system or bus gateway is capable of this, function
block, date, time parameters can be read and written via the
bus. The states of inputs, outputs, markers can be read.
J
The range and the functions of the bus gateways are being
continually further developed.
The current Eaton product line catalog and the Internet
online catalog contain those bus gateways that are
currently available.
60
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EZ500_700.book Page 61 Tuesday, May 3, 2005 5:15 PM
Switching on
3
Switching on
Commissioning
Before switching on EZ, check that you have connected the
power supply terminals and inputs correctly:
• 24 V AC model EZ-AB
– Terminal L: Phase conductor L
– Terminal N: Neutral conductor N
– Terminals I1 to I12:
Actuation via same phase conductor L
• 230 V AC model EZ-AC
– Terminal L: Phase conductor L
– Terminal N: Neutral conductor N
– Terminals I1 to I12, R1 to R12:
Actuation via phase conductor L
• 12 V DC model
– Terminal +12 V: Voltage +12 V
– Terminal 0 V: 0 V voltage
– Terminals I1 to I12:
Actuation via same +12V
• 24 V DC model
– Terminal +24 V: +24 V voltage
– Terminal 0 V: 0 V voltage
– Terminals I1 to I12, R1 to R12:
Actuation via the same +24 V
If you have already integrated EZ into a system, secure any
parts of the system connected to the working area to prevent
access and ensure that no-one can be injured if, for example,
motors start up unexpectedly.
MN05013003E
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Commissioning
Setting the menu language
ENGLISH
DEUTSCH
å
FRANCAIS
ESPANOL
When you switch on EZ for the first time, you will be asked to
select the menu language.
XUse the cursor buttons Í or Ú to select the language
required.
– English
– German
– French
– Spanish
– Italian
– Portuguese
– Dutch
– Swedish
– Polish
– Turkish
– Czech
– Hungarian
XPress OK to confirm your choice and press ESC to exit the
menu.
EZ will then switch to the Status display.
J
You can change the language setting at a later time
(J section “Changing the menu language”, page 205).
If you do not set the language, EZ will display this menu and
wait for you to select a language every time you switch on.
62
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MN05013003E
EZ500_700.book Page 63 Tuesday, May 3, 2005 5:15 PM
EZ operating modes
EZ operating modes
EZ has two operating modes - RUN and STOP.
In RUN mode EZ continuously processes a stored circuit
diagram until you select STOP or disconnect the power. The
circuit diagram, parameters and the EZ settings are retained
in the event of a power failure. All you will have to do is reset
the real-time clock after the back-up time has elapsed. Circuit
diagram entry is only possible in STOP mode.
Caution!
In RUN mode EZ will immediately run the saved circuit
diagram in the unit when the power supply is switched on.
This will happen unless STOP mode was set as startup
mode. In RUN mode outputs are activated according to the
switch logic of the circuit diagram.
When a memory card with a circuit diagram is fitted in an EZ
model with an LCD display, this circuit diagram will not start
automatically if there is circuit diagram in the device. The
circuit diagram must first be transferred from the memory card
to the EZ unit.
In RUN mode EZ-X models load the circuit diagram on the
memory card automatically and run it immediately.
MN05013003E
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EZ500_700.book Page 64 Tuesday, May 3, 2005 5:15 PM
Commissioning
Creating your first circuit
diagram
The following small circuit diagram takes you step by step
through wiring up your first EZ circuit diagram. In this way you
will learn all the rules, quickly enabling you to use EZ for your
own projects.
As with conventional wiring, you use contacts and relays in
the EZ circuit diagram. With EZ, however, you no longer have
to connect up components individually. At the push of a few
buttons, the EZ circuit diagram produces all the wiring. All you
have to do is then connect any switches, sensors, lamps or
contactors you wish to use.
L01+
F1
S1
K1
S2
K1
H1
L01-
Figure 1:
Lamp controller with relays
In the following example, EZ carries out all the wiring and
performs the tasks of the circuit diagram shown below.
64
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EZ500_700.book Page 65 Tuesday, May 3, 2005 5:15 PM
Creating your first circuit diagram
L01+
L01F1
S1
+24V 0V
S2
I1 I2
Q1
2
1
H1
L01-
Figure 2:
...........
I
MO 02:00
.......STOP
J
MN05013003E
Lamp controller with EZ
Starting point: the Status display
When you switch on EZ, it opens the Status display
immediately to show the switching state of the inputs and
outputs. It also indicates whether EZ is already running a
circuit diagram.
The examples were written without the use of expansion
units. If an expansion unit is connected, the Status display
will first show the status of the basic unit and then the status
of the expansion unit before showing the first selection
menu.
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EZ500_700.book Page 66 Tuesday, May 3, 2005 5:15 PM
Commissioning
PROGRAM...
STOP å RUN
PARAMETER
INFO
J
XPress OK to switch to the main menu.
Press OK to switch to the next menu level, and press ESC to
move one level back.
OK has two other functions:
• Press OK to save modified settings.
• In the circuit diagram, you can also press OK to insert
and modify contacts and relay coils.
In this case EZ must be in STOP mode.
XPress OK 2 × to enter the circuit diagram display via menu
items PROGRAM… J PROGRAM. This is where you will
create the circuit diagram.
Circuit diagram display
The circuit diagram display is currently empty. The cursor
flashes at the top left, which is where you will start to wire your
circuit diagram. EZ will automatically propose the first contact
I1.
Â
êê M
êê êê êêê
êê êê êê êêê
m l
êê L
êê êê êêê
êê êê êê êêê
I1-I2----ÄQ1
66
Use the ÍÚ ú í cursor buttons to move the cursor over the
invisible circuit diagram grid.
The first three double columns are the contact fields and the
right-hand columns form the coil field. Each line is a rung. EZ
automatically energizes the first contact to voltage.
XNow try to wire up the following EZ circuit diagram.
Switches S1 and S2 are at the input. I1 and I2 are the
contacts for the input terminals. Relay K1 is represented by
the relay coil ÄQ1. The symbol Ä identifies the coil's function,
in this case a relay coil acting as a contactor. Q1 is one of up
to eight EZ output relays in the basic unit.
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MN05013003E
EZ500_700.book Page 67 Tuesday, May 3, 2005 5:15 PM
Creating your first circuit diagram
From the first contact to the output coil
With EZ, you work from the input to the output. The first input
contact is I1.
XPress OK.
I1 êê êê êêê
EZ inserts the first contact I1 at the cursor position.
XThe I flashes and can be changed, for example, to a P for
a button input by using the cursor buttons Í or Ú.
However, nothing needs to be changed at this point.
XPress OK 2 ×, to move the cursor across the 1 to the
second contact field.
You could also move the cursor to the next contact field using
the cursor button í.
I1 I1 êê êêê
XPress OK.
Again, EZ creates a contact I1 at the cursor position. Change
the contact number to I2 so that break contact S2 can be
connected to input terminal I2.
XPress OK so that the cursor jumps to the next position and
use cursor buttons Í or Ú to change the number to 2.
J
I1-I2 Â
MN05013003E
Press DEL to delete a contact at the cursor position.
XPress OK to move the cursor to the third contact field.
You do not need a third switch contact, so you can now wire
the contacts directly to the coil field.
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Commissioning
Wiring
EZ displays a small arrow in the circuit diagram for creating
the wiring.
Press ALT to activate the arrow and press the cursor buttons
ÍÚ ú í to move it.
J
ALT also has two other functions depending on the cursor
position:
• From the left contact field, press ALT to insert a new,
empty rung.
• The contact under the cursor can be changed between a
make and break contact by pressing the ALT button.
êêMêê êêê
m ll
êêL
êêê
J
The wiring arrow works between contacts and relays. When
you move the arrow onto a contact or relay coil, it changes
back to the cursor and can be reactivated if required.
EZ automatically wires adjacent contacts in a rung up to the
coil.
XPress ALT to wire the cursor from I2 through to the coil
field.
I1-I2l
The cursor changes into a flashing wiring arrow and
automatically jumps to the next logical wiring position.
êê êê êê êêê
XPress the cursor button í. Contact I2 will be connected up
to the coil field.
êê êê êê êêê
êê êê êê êêê
J
You can use the DEL button to erase a connection at the
cursor or arrow position. Where connections intersect, the
vertical connections are deleted first, then, if you press DEL
again, the horizontal connections are deleted.
XPress the cursor button í once more.
The cursor will move to the coil field.
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EZ500_700.book Page 69 Tuesday, May 3, 2005 5:15 PM
Creating your first circuit diagram
I1-I2----ÄQ1
I1-I2----ÄQ1
XPress OK.
EZ will insert relay coil Q1. The specified coil function Ä and
the output relay Q1 are correct and do not have to be
changed.
Your first working EZ circuit diagram now looks like this:
Press ESC to leave the circuit diagram display.
The menu shown appears.
SAVE
XPress OK.
CANCEL
The circuit diagram is now automatically saved. CANCEL
exits the circuit diagram. Changes that have been made to the
circuit diagram are not saved.
J
EZ saves all the necessary circuit diagram and program
data retentively in the internal data memory.
Once you have connected buttons S1 and S2, you can test
your circuit diagram straight away.
Testing the circuit diagram
PROGRAM....Æ
STOP å RUN
PARAMETER..
INFO...
æ
XSwitch with ESC to the main menu and select the STOP å
RUN menu option.
With STOP
RUN å and STOP å
the RUN or STOP operating modes.
RUN you switch to
EZ is in RUN mode if the tick is present at the corresponding
menu item. i.e. STOP
RUN å.
J
MN05013003E
The tick next to a menu item indicates which operating
mode or function is currently active.
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Commissioning
PROGRAM....Æ
STOP
RUN å
PARAMETER..
INFO...
æ
12..........
I
MO 02:00
1....... RUN
XPress OK.
The tick changes to STOP RUN å
The Status display shows the current mode and the switching
states of the inputs and outputs.
XChange to the Status display by pressing ESC and press
pushbutton actuator S1.
The contacts for inputs I1 and I2 are activated and relay Q1
picks up.
Power flow display
EZ allows you to check rungs in RUN mode. This means that
you can check your circuit diagram via the built-in power flow
display while it is being processed by EZ.
I1-I2----ÄQ1
XSwitch to the circuit diagram display (confirm PROGRAM
menu with OK) and actuate pushbutton S1.
The relay picks up and EZ displays the power flow.
I1-I2----ÄQ1
XPress pushbutton actuator S2, that has been connected as
a break contact.
The rung is interrupted and relay Q1 drops out.
Press ESC to return to the Status display.
J
A circuit diagram does not have to be completed before you
can test parts of it with EZ.
EZ simply ignores any incomplete wiring that is not yet
working and only uses the finished wiring.
70
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Creating your first circuit diagram
Deleting the circuit diagram
XSwitch EZ to STOP mode.
The display shows STOP å RUN.
J
PROGRAM
DELETE PROG
EZ must be in STOP mode in order to extend, delete or
modify the circuit diagram.
XUse PROGRAM... to switch from the main menu to the
next menu level.
XSelect DELETE PROGRAM
EZ will display the prompt DELETE?
XPress OK to delete the program or ESC to cancel.
Press ESC to return to the Status display.
Fast circuit diagram entry
You can create a circuit diagram in several ways. The first
option is to enter the elements in the circuit and then to wire
all the elements together. The other option is to use the
enhanced operator guidance of EZ and create the circuit
diagram in one go, from the first contact through to the last
coil.
If you use the first option, you will have to select some of the
elements in order to create and connect up your circuit
diagram.
The second, faster option is what you learned in the example.
In this case you create the entire rung from left to right.
MN05013003E
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EZ500_700.book Page 73 Tuesday, May 3, 2005 5:15 PM
4
Wiring with EZ
By working through the example in chapter 3 you should now
have gained an initial impression of just how simple it is to
create a circuit diagram in EZ. This chapter describes the full
range of EZ functions and provides further examples of how
to use EZ.
Operation of EZ
Buttons for editing circuit diagrams and function relays
Delete rung, contact, relay or empty rung in the circuit diagram
Toggle between break and make contact
Connect contacts, relays and rungs
Add rungs
ÍÚ
ú í
Change value
Move cursor up and down
Change position
Move cursor to left and right
Cursor buttons set as P buttons:
ú
í
Input P1,
Input P3,
Í
Ú
Input P2
Input P4
Undo setting since previous OK
Exit current display or menu
Change, add contact/relay
Save setting
MN05013003E
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Wiring with EZ
Operation
The cursor buttons in the EZ circuit diagram perform three
functions. The current mode is indicated by the appearance of
the flashing cursor.
• Move
• Enter
• Connect
â In Move mode you can use ÍÚ ú í to move the cursor around
the circuit diagram in order to select a rung, contact or relay
coil.
I 1 change a value at the current cursor position. If you press
Use OK to switch to Entry mode so that you can enter or
ESC in Entry mode, EZ will undo the most recent changes.
l relays. Press ALT again to return to Move.
Press ALT to switch to Connect mode for wiring contacts and
Press ESC to leave the circuit diagram and parameter display.
J
EZ performs many of these cursor movements
automatically. For example, EZ switches the cursor to Move
mode if no further entries or connections are possible at the
selected cursor position.
Opening the parameter display for function relays with
contacts or coils
If you specify the contact or coil of a function relay in Entry
mode, EZ automatically switches from the contact number to
the function relay parameter display when you press OK.
Press í to switch to the next contact or coil field without
entering any parameters.
Program
A program is a sequence of commands which EZ executes
cyclically in RUN mode. An EZ program consists of the
necessary settings for the device, password, system settings,
a circuit diagram and/or function relays.
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EZ500_700.book Page 75 Tuesday, May 3, 2005 5:15 PM
Operation of EZ
Circuit diagram
The circuit diagram is that part of the program where the
contacts are connected together. In RUN mode a coil is
switched on and off in accordance with the current flow and
the coil function specified.
Function relays
Function relays are program elements with special functions.
Example: timing relays, time switches, counters. Function
relays are elements provided with or without contacts and
coils as required. In RUN mode the function relays are
processed according to the circuit diagram and the results are
updated accordingly.
Examples:
Timing relay = function relay with contacts and coils
Time switch = function relay with contacts
Relay
Relays are switching devices which are electronically
simulated in EZ. They actuate their contacts according to their
designated function. A relay consists of at least a coil and a
contact.
Contacts
You modify the current flow with the contacts in the EZ circuit
diagram. Contacts such as make contacts carry a 1 signal
when closed and 0 when open. Every contact in the EZ circuit
diagram can be defined as either a make contact or a break
contact.
MN05013003E
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Wiring with EZ
Coils
Coils are the actuating mechanisms of relays. In RUN mode,
the results of the wiring are sent to the coils, which switch on
or off accordingly. Coils can have seven different coil
functions.
Table 5:
Usable contacts
Contact
EZ representation
Make contact
Open in the rest state
I, Q, M, N, A, Ö, Y, C, T, O, P, :,
Break contact
Closed in the rest state
i, q, m, N, a, ö, Y, c, t, O, p, D,
D, S, R, Z
S, R, Z
EZ works with different contacts, which can be used in any
order in the contact fields of the circuit diagram.
Table 6:
Contact type
Contacts
Make
contact
Break
contact
EZ500
EZ700
Page
A
a
A1…A16
A1…A16
102
Counter function relay
C
c
C1…C16
C1…C16
114
Text marker function relay
D
D
D1…D16
D1…D16
134
7-day time switch function relay
Ö
ö
Ö1…Ö8
Ö1…Ö8
140
EZ input terminal
I
i
I1…I8
I1…I12
81
0 signal
I13
I13
Expansion status
–
I14
241
Analog value comparator function
relay
I16
I15…I16
241
Marker (auxiliary relay)
M
m
M1…M16
M1…M16
89
Marker (auxiliary relay)
N
N
N1…N16
N1…N16
89
Operating hours counter
O
O
O1…O4
O1…O4
145
Cursor button
P
p
P1…P4
P1…P4
87
EZ output
Q
q
Q1…Q4
Q1…Q8
81
Short-circuit/overload
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EZ500_700.book Page 77 Tuesday, May 3, 2005 5:15 PM
Operation of EZ
Contact type
Make
contact
Break
contact
EZ500
EZ700
Page
R
R
–
R1…R12
81
R
R
–
R15…R16
241
S
S
S1…S8
(as
marker)
S1…S8
89
Timing function relay
T
t
T1…T16
T1…T16
150
Jump label
:
–
:1…:8
:1…:8
166
Year time switch
Y
Y
Y1…Y8
Y1…Y8
169
Master reset, (central reset)
Z
Z
Z1…Z3
Z1…Z3
176
Expansion input terminal
Short-circuit/overload with
expansion
EZ output
(expansion or S auxiliary marker)
Relay, function relays
EZ has nine different types of relay for wiring in a circuit
diagram.
Relays
EZ display
EZ500
EZ700
Coil
function
Parame
ters
A
A1…A16
A1…A16
–
Counter function relays
C
C1…C16
C1…C16
Text marker function relays
D
D1…D16
D1…D16
Ö
Ö1…Ö4
Ö1…Ö4
–
Markers (auxiliary relay)
M
M1…M16
M1…M16
–
Markers (auxiliary relay)
N
N1…N16
N1…N16
–
Operating hours counters
O
O1…O4
O1…O4
EZ output relays
Q
Q1…Q8
Q1…Q8
–
S
S1…S8
(as marker)
S1…S8
–
T
T1…T16
T1…T16
Analog value comparator
function relays
7-day time switch function
relays
EZ output relay expansion,
auxiliary markers
Timer function relays
MN05013003E
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77
EZ500_700.book Page 78 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Relays
EZ display
EZ500
EZ700
Coil
function
Parame
ters
Conditional jump
:
:1…:8
:1…:8
–
Year time switch
Y
Y1…Y8
Y1…Y8
–
Master reset, (central reset)
Z
Z1…Z3
Z1…Z3
–
You can set the switching behavior of these relays by means
of the coil functions and parameters selected.
The options for setting output and marker relays are listed with
the description of each coil function.
The coil functions and parameters are listed with the
description of each function relay.
Circuit diagram display
In the EZ circuit diagram, contacts and coils are connected up
from left to right - from the contact to the coil. The circuit
diagram is created on a hidden wiring grid containing contact
fields, coil fields and rungs. It is then wired up with
connections.
• You can add switch contacts in the three contact fields. EZ
adds the first energized contact field automatically.
• You add the relay coil to be controlled together with its
function and designation in the coil field.
• Every line in the circuit diagram forms a rung. Up to 128
rungs can be wired in a circuit diagram.
78
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MN05013003E
EZ500_700.book Page 79 Tuesday, May 3, 2005 5:15 PM
Operation of EZ
Contact fields
Coil field
I1-I2uT1-ÄQ1
Rungs/
Current paths
Q1-Ö1kêê êêê
êê êê êê êêê
êê êê êê êêê
Rungs
• Connections are used to produce the electrical contact
between switch contacts and the coils. They can be created
across several rungs. Each point of intersection is a
connection.
J
MN05013003E
The circuit diagram display performs two functions:
• In STOP mode it is used to edit the circuit diagram.
• In RUN mode it is used to check the circuit diagram using
the Power flow display.
For more information visit: www.EatonElectrical.com
79
EZ500_700.book Page 80 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Saving and loading circuit diagrams
There are two ways of saving circuit diagrams in EZ
externally:
• By saving to a memory card
• By saving to a PC running EZSoft.
Once they have been saved, programs can be reloaded into
EZ, edited and run.
All circuit diagram data is saved in EZ. In the event of a power
failure the data will be retained until the next time it is
overwritten or deleted.
Memory card
Each EZ-M-32K memory card contains a circuit diagram
which is inserted into the EZ interface. The program is stored
retentively on the memory card.
The way the memory card works and a description of how to
transfer a program to the card is given in section “Memory
card” on page 244.
EZSoft
EZSoft is a PC program with which you can create, store, test
(simulate) and manage EZ circuit diagrams.
Completed circuit diagrams are transferred between your PC
and EZ via the connecting cable. Once you have transferred
a circuit diagram, simply run EZ straight from your PC.
Details on the program and transferring circuit diagrams are
given in section “EZSoft” from page 248.
Working with contacts and
relays
80
In EZ circuit diagrams, the switches, buttons and relays of
conventional circuit diagrams are connected up using input
contacts and relay coils.
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MN05013003E
EZ500_700.book Page 81 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
Conventional circuit
EZ circuit diagram
EZ terminal
S1
K1
S2
K1
H1
Connect make contact S1 to input
terminal I2
Connect make contact S2 to EZ input
terminal I3
Connect load H1 to EZ output Q4
S1 or S2 switches on H1.
EZ circuit diagram
I2u------ÄQ4
I3k
Input and output contacts
First specify which input and output terminals you wish to use
in your circuit.
Depending on the type and configuration, EZ has 8, 12 or 24
input terminals and 4, 6, 8, 10 or 16 outputs. The signal states
on the input terminals are detected in the circuit diagram with
the input contacts I1 to I12. R1 to R12 are the input contacts
of the expansion. In the circuit diagram the outputs are
controlled via the corresponding output relay coils Q1 to Q8 or
S1 to S8 (expansion).
I2
Entering and changing contacts and relay coils
A switch contact is selected in EZ via the contact name and
contact number.
Contact name
Contact number
ÄQ4
A relay coil is defined by its coil function, name and number.
Coil function
Relay name
Relay number
MN05013003E
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EZ500_700.book Page 82 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
J
A full list of all the contacts and relays is given in the
overview starting on page 76.
I1 The value to be changed flashes.
Values for contacts and coil fields are changed in Entry mode.
J
If the field is empty, EZ will enter contact I1 or the coil
ÄQ1.
XMove the cursor using the buttons ú í ÍÚ to a contact or
coil field.
XPress OK to switch to Entry mode.
XUse ú í to select the position you wish to change, or press
OK to jump to the next position.
XUse ÍÚ to modify the value of the position.
82
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MN05013003E
EZ500_700.book Page 83 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
Change ÄQ1 to ÄQ8 in the coil field
Change I1 to I2 in the
contact field
I1
Q í or
M OK
I1
2
3
Í
I2
ÄQ1
Å
è
N
4
È
Ö
.
S
A
Y
C
T
O
P
:
D
S
R
5
ä
.
R
.
.
ú
ÄQ1
M í or
2
N OK
3
T
5
C
O
:
Ú
ÄQ8
4
.
.
D
.
Z
1
S
1
ÄQ1
.
2
2
í or
OK
í or
OK
Z
EZ will leave Entry mode when you press ú í or OK to leave
a contact field or coil field.
Deleting contacts and relay coils
XMove the cursor using the buttons ú í ÍÚ to a contact or
coil field.
XPress DEL.
The contact or the relay coil will be deleted, together with any
connections.
Changing make contacts to break contacts
Every switch contact in the EZ circuit diagram can be defined
as either a make contact or a break contact.
MN05013003E
For more information visit: www.EatonElectrical.com
83
EZ500_700.book Page 84 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
XSwitch to Entry mode and move the cursor over the contact
name.
XPress ALT. The make contact will change to a break
contact.
XPress OK 2 × to confirm the change.
I2u------ÄQ4
I3k
I2u------ÄQ4
i3k
I2u------ÄQ4
i3kê
2×
Figure 39:
l
Changing contact I3 from make to break
Creating and modifying connections
Switch contacts and relay coils are connected with the wiring
arrow in Connect mode. EZ displays the cursor in this mode
as an arrow.
XUse ú í ÍÚ to move the cursor onto the contact field or
coil field from which you wish to create a connection.
J
Do not position the cursor on the first contact field. At this
position the ALT button has a different function (Insert
rung).
XPress ALT to switch to Connect mode.
XUse ú í to move the diagonal arrow between the contact
fields and coil fields and ÍÚ to move between rungs.
XPress ALT to leave Connect mode.
EZ will leave the mode automatically when you move the
diagonal arrow onto a contact field or coil field which has
already been assigned.
J
84
In a rung, EZ automatically connects switch contacts and
the connection to the relay coil if there are no empty fields
in-between.
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MN05013003E
EZ500_700.book Page 85 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
I1-Q4-i3o
z-----k
hI2-I4-ÄQ2
I1-Q4-i3-ÄM1
I2-I4-M1-ÄQ2
Never work backwards. You will learn why wiring backwards
does not work in section “Example: Do not wire backwards”
from page 233.
When wiring more than three contacts in series, use an M or
N marker.
Deleting connections
XMove the cursor onto the contact field or coil field to the right
of the connection that you want to delete. Press ALT to
switch to Connect mode.
XPress DEL.
EZ will delete a connection. Closed adjacent connections will
be retained.
If several rungs are connected to one another, EZ first deletes
the vertical connection. If you press DEL again, it will delete
the horizontal connection as well.
J
You cannot delete connections that EZ has created
automatically.
Close the delete operation with ALT or by moving the cursor
to a contact or coil field.
MN05013003E
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85
EZ500_700.book Page 86 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Inserting and deleting a rung
The EZ circuit diagram shows four of the 128 rungs in the
display at the same time. If you move the cursor past the top
or bottom of the display, EZ automatically scrolls up or down
the display to show hidden rungs – even empty ones.
A new rung is added below the last connection or inserted
above the cursor position:
I2u------ÄQ4
I3k
I2u------ÄQ4
 n
I3k
XPosition the cursor on the first contact field of an empty
rung.
XPress ALT.
The existing rung with all its additional connections is “shifted”
downwards. The cursor is then positioned directly in the new
rung.
Deleting a rung
EZ will only remove empty rungs, i.e. those without contacts
or coils.
XDelete all the contacts and relay coils from the rung.
XPosition the cursor on the first contact field of the empty
rung.
XPress DEL.
The subsequent rung(s) will be “pulled up” and any existing
links between rungs will be retained.
86
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EZ500_700.book Page 87 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
Switching with the cursor buttons
With EZ, you can also use the four cursor buttons as hardwired inputs in the circuit diagram.
P2
P1
P3
P4
The buttons are wired in the circuit diagram as contacts P1 to
P4. The P buttons can be activated and deactivated in the
System menu.
The P buttons can also be used for testing circuits or manual
operation. These button functions are also useful for servicing
and commissioning purposes.
I1u------SQ1
P2k
I2u------RQ1
Example 1:
A lamp at output relay Q1 is switched on and off via inputs I1
and I2 or using cursor buttons Í Ú.
P4k
I5-------ÄM1
I1-m1u---ÄQ1
P1-M1k
Example 2
Terminal I1 is used to control output relay Q1. Terminal I5
switches to Cursor button mode and deactivates rung I1 via
M1.
J
............
I
FR 15:59
P2
........STOP
MN05013003E
The P buttons are only detected as switches in the Status
menu. The cursor buttons are used for other functions in the
menus, the power flow display and in the text display.
The Status menu display shows whether the P buttons are
used in the circuit diagram.
•
•
•
•
P: button function wired and active.
P2: button function wired, active and P2 button Í pressed.
P-: button function wired and not active.
Empty field: P buttons not used.
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87
EZ500_700.book Page 88 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Checking the circuit diagram
EZ contains a built-in measuring device enabling you to
monitor the switching states of contacts and relay coils during
operation.
I2---u---ÄQ4
I3---k
XComplete the small parallel connection and switch EZ to
RUN mode via the main menu.
XReturn to the circuit diagram display.
You are now unable to edit the circuit diagram.
J
If you switch to the circuit diagram display and are unable to
modify a circuit diagram, first check whether EZ is in STOP
mode.
The circuit diagram display performs two functions depending
on the mode:
• STOP: Creation of the circuit diagram
• RUN: Power flow display
I2---U---ÄQ4
I3---k
XSwitch on I3.
In the power flow display, energized connections are thicker
than non-energized connections.
You can follow energized connections across all rungs by
scrolling the display up and down.
J
88
The power flow display will not show signal fluctuations in
the millisecond range. This is due to the inherent delay
factor of LCD displays.
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MN05013003E
EZ500_700.book Page 89 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
Coil functions
You can set the coil function to determine the switching
behavior of relay coils. The following coil functions are
available for relays Q, M, S, D, “:”:
Table 7:
Circuit diagram
symbol
Coil function
EZ
display
Coil function
Example
Ä
Contactor
function
ÄQ1, ÄD2, ÄS4,
Å
Contactor
function with
negated result
ÅQ1, ÅD2, ÅS4
è
Cycle pulse with
falling edge
èQ3, èM4, èD8,
È
Cycle pulse with
rising edge
ÈQ4, ÈM5, ÈD7,
ä
Impulse relay
function
äQ3, äM4, äD8,
S
Set (latching)
SQ8, SM2, SD3,
R
Reset
(unlatching)
RQ4, RM5, RD7,
Ä:1, ÄM7
èS7
ÈS3
äS7
SS4
RS3
Marker relays M and N are used as a flag. The S relay can be
used as the output of an expansion unit or as a marker if no
expansion unit is connected. The only difference between
them and the output relay Q is that they have no output
terminals.
J
MN05013003E
The coil functions of the function relays are described in the
descriptions for the appropriate relays.
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89
EZ500_700.book Page 90 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
The coil functions Ä, Å, è, È, (contactor, contactor negated,
cycle pulse negative, rising edge) must only be used once
for each relay coil. The last coil in the circuit diagram
determines the status of the relay.
J
When controlling a contactor or relay, the control coil is only
present once. If you are creating parallel circuits, use Set,
Reset as a coil function.
Rules for wiring relay coils
To ensure a clear overview of all relay states only assign the
same coil function once to a relay (ä, S, R). However,
retentive coil functions such as ä, S, R can be used several
times if required by the circuit diagram logic.
Exception: When using jumps to structure a circuit diagram,
this coil function can also be used effectively several times.
Relay with contactor function Ä
The output signal follows immediately after the input signal
and the relay acts as a contactor.
on
on
Figure 40:
Signal diagram of contactor function
Representation in EZ:
•
•
•
•
•
90
Output relays Q: ÄQ1 to ÄQ8 (depending on type)
Markers M, N: ÄM1 to ÄM16, ÄN1 to ÄN16
Function relays (Text) D: ÄD1 to ÄD16
Output relays S: ÄS1 to ÄS8
Jumps: Ä:1 to Ä:8
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EZ500_700.book Page 91 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
Contactor function with negated result (inverse contactor
function) Å
The output signal is simply an inversion of the input signal; the
relay operates like a contactor with contacts that have been
negated. If the coil is triggered with the 1 state, the coil
switches its make contacts to the 0 state.
on
on
Figure 41:
Signal diagram of inverse contactor function
Representation in EZ
•
•
•
•
•
Output relays Q: ÅQ1 to ÅQ8 (depending on type)
Markers M, N: ÅM1 to ÅM16, ÅN1 to ÅN16
Function relays (Text) D: ÅD1 to ÅD16
Output relays S: ÅS1 to ÅS8
Jumps: Å:1 to Å:8
Falling edge evaluation (cycle pulse) è
This function is used if the coil is only meant to switch on a
falling edge. With a change in the coil state from 1 to 0, the coil
switches its make contacts to the 1 state for one cycle.
on
on
Figure 42:
MN05013003E
Signal diagram of cycle pulse with falling edge
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91
EZ500_700.book Page 92 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Representation in EZ:
• Markers M, N: èM1 to èM16, èN1 to èN16
• Jumps: è:1 to è:8
J
Physical outputs should not be used as a cycle pulse is
generated.
Rising edge evaluation (cycle pulse) È
This function is used if the coil is only meant to switch on a
rising edge. With a change in the coil state from 0 to 1, the coil
switches its make contacts to the 1 state for one cycle.
on
on
Figure 43:
Signal diagram of cycle pulse with rising edge
Representation in EZ:
• Markers M, N: ÈM1 to ÈM16, ÈN1 to ÈN16
• Jumps: È:1 to È:8
J
92
Physical outputs should not be used as a cycle pulse is
generated.
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EZ500_700.book Page 93 Tuesday, May 3, 2005 5:15 PM
Working with contacts and relays
Impulse relay ä
The relay coil switches whenever the input signal changes
from 0 to 1. The relay behaves like an impulse relay.
on
on
Figure 44:
Signal diagram of impulse relay
Representation in EZ:
•
•
•
•
J
MN05013003E
Output relays Q: äQ1 to äQ8 (depending on type)
Markers M: äM1 to äM16
Function relays (Text) D: äD1 to äD8
Relays S: äS1 to äS8
A coil is automatically switched off if the power fails and if
STOP mode is active. Exception: Retentive coils retain
signal 1 (J section “Retention (non-volatile data storage)”
from page 226).
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93
EZ500_700.book Page 94 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Latching relay
The “latch” and “unlatch” relay functions are used in pairs. The
relay picks up when latched and remains in this state until it is
reset by the “unlatch” function.
:
S
R
on
on
on
A
Figure 45:
B
C
Latching relay signal diagram
• Range A: The Set coil and the Reset coil are triggered at different
times
• Range B: Reset coil is triggered at the same time as the Set coil
• Range C: Power supply switched off
Representation in EZ:
• Q output relays: SQ1 to SQ8, RQ1 to RQ8 (depending on
type)
• M markers: SM1 to SM16, RM1 to RM16
• (Text) D function relays: SD1 to SD8, RD1 to RD8
• S relays:SS1 to SS8, RS1 to RS8
Use each of the two relay functions S and R once only per
relay.
I1-I2----SQ1
If both coils are triggered at the same time, priority is given to
the coil further down in the circuit diagram. This is shown in
the above signal diagram in section B.
I2-------RQ1
94
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Function relays
J
Function relays
A latched relay is automatically switched off if the power
fails or if the device is in STOP mode. Exception: Retentive
coils retain signal 1 (J section “Retention (non-volatile
data storage)”, page 226).
Function relays allow you to simulate the functions of different
conventional control engineering devices in your circuit
diagram. EZ provides the following function relays:
Table 8:
Function relays
EZ circuit diagram
symbol
Function relays
A1, A2
Analog value comparator, threshold
value switch (only useful for devices
with an analog input)
C1, CC1, DC1, RC1
Counter relay, up/down counter, highspeed counter, frequency counter
D2, ÄD2
Text, output user-defined texts, enter
values
Ö1, Ö2
Time switch, weekday/time
O1, ÄO2
Operating hours counter with limit
value entry.
T1,
Timing relay, on-delayed
Timing relay, on-delayed with random
switching
TT1, RT1, HT1
X, ?X
T1,
TT1, RT1, HT1
â, ?â
T6,
TT6, RT6, HT6
Xâ, ?Xâ
Timing relay, on/off-delayed
Timing relay, on/off-delayed with
random switching
T2,
Timing relay, single pulse
TT2, RT2, HT2
ü
MN05013003E
Timing relay, off-delayed
Timing relay, off-delayed with random
switching
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95
EZ500_700.book Page 96 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
EZ circuit diagram
symbol
Function relays
T3,
Timing relay, flashing
TT3, RT3, HT3
Ü
:2,
Jump
Y3
Year time switch, date
Z1, Z3
Master reset, central reset of outputs,
markers
Ä:2
A function relay is started via its relay coil or by evaluating a
parameter. It switches the contact of the function relay
according to its function and the set parameters.
J
Current actual values are cleared if the power supply is
switched off or if EZ is switched to STOP mode.
Exception: Retentive coils keep their logic state (J section
“Retention (non-volatile data storage)”, page 226).
Attention!
The following applies to RUN mode: EZ processes the
function relays after a pass through the circuit diagram. The
last state of the coils is used for this.
Only use the coil of a function relay once. Exception: When
working with jumps, the same coil can be used several
times.
Example with function relay timer and counter relay
A warning light flashes when the counter reaches 10. The
example shows function relays C1 and T1. The S1 pushbutton
actuator is used for the count signal. The S2 pushbutton
actuator resets counter P1.
96
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EZ500_700.book Page 97 Tuesday, May 3, 2005 5:15 PM
Function relays
L01+
P1
S2
S1
K1T
R
C
P1
H1
K1T
L01–
2s
Counter
Value 10
Figure 46:
I5-------CC1
I6-------RC1
C1-------TT1
T1-------ÄQ1
Hard-wiring with relays
The wiring of the EZ relay looks as follows.
L01+
L01–
S1
+24 V 0 V
1
S2
I5 I6
2
Q1
H1
L01–
Figure 47:
EZ wiring and circuit diagram
The counter P1 is called C1 in EZ.
The timing relay K1T is called T1 in EZ.
MN05013003E
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97
EZ500_700.book Page 98 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
I5-------CC1
J
XComplete the circuit diagram up to CC1.
CC1 is the count coil of the counter 1 function relay.
Press OK to call up the EZ parameter display.
XMove the cursor onto the 1 of CC1 and press OK.
The parameter set for the counter is displayed.
C1 N
S
C1 N
S
00000
+
C1 N
+
C1 N
+
S
S
98
+0
+
00010
00010
XPress the cursor button until the cursor is on the plus sign
on the right of the S (setpoint).
XPress the OK button.
XPress the í button.
XUse í to move the cursor onto the tens digit.
XUse Í Ú to modify the value of the digit.
XConfirm the value input with OK.
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EZ500_700.book Page 99 Tuesday, May 3, 2005 5:15 PM
Function relays
I5-------CC1
ê
J
I5-------CC1
I6-------RC1
XPress ESC to return to the circuit diagram, the setpoint
0010 will be stored.
EZ has specific parameter displays for function relays. The
meaning of these parameters is explained under each relay
type.
XEnter the circuit diagram up to coil TT1 of the timing relay.
Set the parameter for T1.
C1-------TT1
T1 X
I1
I2
T:
T1 Ü
I1
I2
T:
T1 Ü
I1
I2
T:
T1 Ü
I1
I2
MN05013003E
T:
+0
S
+
S
+
S
+
S
+
+0
+0
The timing relay works like a flashing relay. The EZ symbol for
the flasher/blink relay is Ü. It is set at the top left of the
parameter display. S means here the Seconds time base.
XSelect the Ü symbol by pressing the Ú button.
+0
+0
XUse the í button to move to the first time setpoint I1.
+0
00.000
XPress the OK button.
XPress the í button.
+0
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99
EZ500_700.book Page 100 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
T1 Ü
I1
I2
T:
T1 Ü
I1
I2
T:
S
01.000
+
+0
S
01.000
XUse the Í Ú ú í buttons to enter the value 01.000.
XConfirm with OK.
The time setpoint I1 for the pause time is 1 s
+
00.500
XUse the Ú button to enter the value of the second setpoint
I2.
XSet this value to 0.5 s.
This is the time value for the pulse time.
XPress ESC to leave the parameter entry.
The values are now stored.
I5-------CC1
XComplete the circuit diagram.
I6-------RC1
C1-------TT1
T1-------ÄQ1
XPress the ESC button.
XPress OK to store the circuit diagram.
XTest the circuit diagram using the power flow display.
XSwitch EZ to RUN mode and return to the circuit diagram.
SAVE
CANCEL
Each parameter set can be displayed using the power flow
display for the circuit diagram.
XMove the cursor onto C1 and press OK.
C1 N
S
0010
+
The parameter set for the counter is displayed with actual and
setpoint values.
XSwitch the input I5. The actual value changes.
# C:0000
100
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EZ500_700.book Page 101 Tuesday, May 3, 2005 5:15 PM
Function relays
C1 N
S
+
0010
This is represented in the EZ parameter display. In the last line
C: 0007 the counter actual value is = 7.
# C:0007
C1 N
S
+
0010
If the actual value is greater than or equal to the setpoint (10),
the left character on the bottom row will change to â. The
contact of counter C1 switches.
The counter contact triggers the timing relay. This causes the
warning light to flash at output Q1.
â C:0010
I5-------CC1
Power flow of the circuit diagram
I6-------RC1
C1=======TT1
T1=======ÄQ1
T1 Ü
S1
S2
S
00.500
+
00.250
â T:00.200
Doubling the flashing frequency:
XIn the power flow display select T1.
XPress OK.
XChange the set time I1 to 00.500 and I2 to 00.250
(0.5 and 0.25 s).
XThe set time will be accepted as soon as you press OK.
The character on the left of the bottom row will indicate
whether the contact has switched or not.
• # Contact has not switched (make contact open).
• â Contact has switched (make contact closed).
You can also modify parameter settings via the PARAMETER
menu option.
J
MN05013003E
If you want to prevent other people from modifying the
parameters, change the access enable symbol from + to –
when creating the circuit diagram and setting parameters.
You can then protect the circuit diagram with a password.
For more information visit: www.EatonElectrical.com
101
EZ500_700.book Page 102 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Analog value comparator/
threshold value switch
EZ provides 16 analog comparators A1 to A16 for use as
required. These can also be used as threshold value switches
or comparators.
An analog value comparator or threshold value switch
enables you to compare analog input values with a setpoint,
the actual value of another function relay or another analog
input. This enables you to implement small controller tasks
such as two-point controllers very easily.
All EZ-AB, EZ-DA and EZ-DC devices are provided with
analog inputs.
• The analog inputs of the EZ500 are I7 and I8.
• The analog inputs of the EZ700 are I7, I8, I11 and I12
The following comparisons are possible:
Value at function
relay value input I11
102
Comparator functions
Mode selection at
the function relay
Value at function
relay value input I2
Analog input I7, I8,
I11, I12
Analog input I7, I8,
I11, I12
Setpoint 0000 to
9999
Setpoint 0000 to
9999
Actual value of
counter relay C1 to
C16
Actual value of
counter relay C1 to
C16
Actual value of timing
relay T1 to T16
Actual value of timing
relay T1 to T16
Less than
LT
Less than/equal to
LE
Equal to
EQ
Greater than/equal to
GE
Greater than
GT
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MN05013003E
EZ500_700.book Page 103 Tuesday, May 3, 2005 5:15 PM
Analog value comparator/threshold value
Table 9:
Comparison examples:
A1 function relay
Value input I1
A1 function relay
Value input I2
I7
GE
(greater than/equal
to)
I8
I7
LE
(less than/equal to)
I8
I7
GE
(greater than/equal
to)
Setpoint
I7
LE
(less than/equal to)
Setpoint
I8
GE
(greater than/equal
to)
Setpoint
I8
LE
(less than/equal to)
Setpoint
I1uA1----SQ1
hA2----RQ1
A3-------ÄM1
Circuit diagram display with analog value comparator
Analog value comparators are integrated as contacts in the
circuit diagram.
In the circuit diagram above, I1 enables both analog value
comparators. If a value goes below the set value, A1 switches
output Q1. If another value exceeds the set value, A2
deactivates output Q1. A3 switches marker M1 on and off.
A1 EQ
I1
+0
Æ
+0
æ
F1
+0
F2
+0
I2
OS
HY
MN05013003E
+
Table 10:
Parameter display and parameter set for analog value
comparator:
A1
Analog value comparator function relay 1
EQ
Equal mode
The function relay has the following modes:
• LT: less than
• LE: less than/equal to
• EQ: equal to
• GE: great than/equal to
• GT:greater than
+
+
+0
+0
-
appears in the PARAMETER menu.
does not appear in the PARAMETER menu.
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103
EZ500_700.book Page 104 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
I1
Comparison value 1 (positive value I7, I8, I11, I12, actual
value T1 to T16, C1 to C16)
F1
Gain factor for I1 (I1 = F1 × actual value at I1);
F1 = positive value from 0 to 9999
I2
Comparison value 2 (positive value I7, I8, I11, I12, actual
value T1 to T16, C1 to C16)
F2
Gain factor for I2 (I2 = F2 × actual value at I2);
F2 = positive value from 0 to 9999
OS
Offset for the value of I1 (I1 = OS + + actual value at
I1); OS = positive value from 0 to 9999
HY
Switching hysteresis for value I2
Value HY applies both to positive and negative
hysteresis.
• I2 = Actual value at I2 + HY;
• I2 = Actual value at I2 - HY;
• HY= positive value from 0 to 9999
J
Work normally with analog inputs and setpoints as the
parameters for the analog value comparator.
J
The analog value comparator for EZ500 and EZ700
operates internally in the value range:
–2147483648 to +2147483647
This ensures that the correct value is always calculated.
This is important for multiplying values (I1 × F1 or I2 ×
F2).
Example:
I1 = 9999, F1 = 9999
I1 × F1 = 99980001
The result is within the value range.
J
104
If no value is entered at F1 or F2, only the value at I1 and I2
is used (no multiplication).
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MN05013003E
EZ500_700.book Page 105 Tuesday, May 3, 2005 5:15 PM
Analog value comparator/threshold value
J
If the value of a control relay exceeds the value 9999, the
value of the counter is shown in the display of the analog
value comparator minus 10000.
Example: Counter actual value =10233
Display of the analog value comparator: 233 (10000 is
displayed as 0).
Parameter display in RUN mode
Parameter display and parameter set for analog value
comparator in RUN mode with the display of the actual values:
A1 EQ
I1
0249
I2
0350
OS
0000
F1
F2
HY
0000
0000
0025
+
Æ
æ
Actual value, e.g.: analog input
Factor is not used
Actual comparison value, e.g.: constant
Factor is not used
Offset is not used
The switching hysteresis is +/– 25
Resolution of the analog inputs
The analog inputs I7, I8, and on the EZ700 I11, I12 have the
following resolution.
The analog signal from 0 to 10 V DC is converted to a 10-bit
digital value from 0 to 1023. A digital value of 100 represents
an analog value of 1.0 V (exactly 0.98 V).
MN05013003E
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105
EZ500_700.book Page 106 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
U [V]
10.0
5.0
0
Figure 48:
512
1023
Resolution of the analog inputs
Function of the analog value comparator
J
The GT, GE, LT, and LE comparison functions only differ in
the fact that GE and LE also switch when the value is equal
to the setpoint. EZ500 and EZ700 feature five comparison
modes so that all analog value comparators are compatible
between models.
Caution!
Analog signals are more sensitive to interference than
digital signals. Consequently, more care must be taken
when laying and connecting the signal lines.
Set the switching hysteresis to a value so that interference
signals will not cause accidental switching. A value of 0.2 V
(value 20 without gain) must be observed as a safety value.
A1 LT
I7
Æ
I2
0100
æ
F1
F2
OS
HY
106
+
I1
+0
+0
Function of the Less than comparison
Parameter display and parameter set for Less than analog
value comparator.
+0
0025
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MN05013003E
EZ500_700.book Page 107 Tuesday, May 3, 2005 5:15 PM
Analog value comparator/threshold value
A1-------ÄQ1
J
Circuit diagram with analog value comparator.
The values F1 +0, F2 +0 and OS +0 were not defined.
A gain is not used with any values. No offset is used.
1
2
3
4
on
off
Figure 49:
Signal diagram of analog value comparator in Less than
mode
1: actual value at I7
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches off when the actual value at I7
exceeds the setpoint plus hysteresis. If the actual value at I7
falls below the setpoint, the make contact switches on.
A2 LE
+
I1
I7
Æ
I2
0100
æ
F1
F2
OS
HY
MN05013003E
+0
+0
Function of the Less than/equal to comparison
Parameter display and parameter set for Less than and equal
to analog value comparator.
+0
0025
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107
EZ500_700.book Page 108 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
A2-------ÄQ1
J
Circuit diagram with analog value comparator.
The values F1 +0, F2 +0 and OS +0 were not defined.
No values are used with a gain factor, and no offset is used.
1
2
3
4
on
off
Figure 50:
Signal diagram of analog value comparator in Less
than/equal to mode
1: actual value at I7
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches off when the actual value at I7
exceeds the setpoint plus hysteresis. If the actual value at I7
equals or falls below the setpoint, the make contact switches
on.
A8 EQ
I1
I8
Æ
I2
3000
æ
F1
F2
OS
HY
108
+
0010
+0
Function of the Equal to comparison
Parameter display and parameter set for Equal analog value
comparator.
+0
0250
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MN05013003E
EZ500_700.book Page 109 Tuesday, May 3, 2005 5:15 PM
Analog value comparator/threshold value
A8-------ÄQ3
J
Circuit diagram with analog value comparator.
The values F2 +0 and OS +0 were not defined. No
values are used with a gain factor, and no offset is used. A
gain factor of 10 is used with the analog value at I8. The
hysteresis is adjusted accordingly.
1
2
3
4
on
off
Figure 51:
Signal diagram of analog value comparator in Equal to
mode
1: actual value at I8, multiplied with gain factor F2
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches on if the actual value at I8 (multiplied
by F1) reaches the configured setpoint. If the value exceeds the
setpoint plus hysteresis, the make contact switches off. If the
actual value at I8 (multiplied by F1) falls to the setpoint, the make
contact switches on. If the actual value falls below the setpoint
minus hysteresis, the make contact switches off.
MN05013003E
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109
EZ500_700.book Page 110 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
A5 GE
+
I1
I7
Æ
I2
0100
æ
F1
F2
OS
+0
+0
Example: Function of the Greater than/equal to
comparison
Parameter display and parameter set for Greater than/equal
to analog value comparator.
+0
A5-------ÄQ1
J
Circuit diagram with analog value comparator.
The values F1 +0, F2 +0 and OS +0 were not defined.
No values are used with a gain factor, and no offset is used.
1
2
3
4
on
off
Figure 52:
Signal diagram of analog value comparator in Greater
than/equal to mode
1: actual value at I7
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches if the actual value at I7 is equal to
the setpoint. The make contact switches off when the actual
value at I7 falls below the setpoint minus hysteresis.
110
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MN05013003E
EZ500_700.book Page 111 Tuesday, May 3, 2005 5:15 PM
Analog value comparator/threshold value
A4 GT
+
I1
I7
Æ
I2
0100
æ
F1
F2
OS
HY
+0
+0
Example: Function of the Greater than comparison
Parameter display and parameter set for Greater than analog
value comparator.
+0
0025
A4-------ÄQ1
J
Circuit diagram with analog value comparator.
The values F1 +0, F2 +0 and OS +0 were not defined.
No values are used with a gain factor, and no offset is used.
1
2
3
4
on
off
Figure 53:
Signal diagram of analog value comparator in Greater
than mode
1: actual value at I7
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches if the actual value at I7 reaches
the setpoint. The make contact switches off when the actual
value at I7 falls below the setpoint minus hysteresis.
MN05013003E
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111
EZ500_700.book Page 112 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
I5uA1----SQ1
hA2u---RQ1
i5---k
Example: Analog value comparator as two-step
controller
If, for example, the temperature goes below a value, A1
switches on the output Q1 with the enable input I5. If the
temperature exceeds the set value, A2 will switch off. If there
is no enable signal, output Q1 will always be switched off by
I5.
Parameter settings of both analog value comparators:
Switching on
A1 LT
I7
Æ
I2
0500
æ
F2
OS
HY
hI7u---RQ1
i5---k
+
I1
F1
I5uA1----SQ1
Switch off
+0
+0
+0
A2 GT
I7
Æ
I2
0550
æ
F1
F2
OS
+0
+
I1
HY
+0
+0
+0
0015
A simple circuit can be implemented if a switching point of the
controller is assigned to the digital switching point of the
analog input. This switching point has a 8 V DC (EZ-DA, EZDC) and 9.5 V (EZ-AB) signal.
Parameter settings:
Switching on
A1 LT
+
I1
I7
Æ
I2
0500
æ
F1
F2
OS
HY
112
Switch off
+0
+0
The switch point is
implemented via I7 (digital
switching signal).
+0
+0
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MN05013003E
EZ500_700.book Page 113 Tuesday, May 3, 2005 5:15 PM
Analog value comparator/threshold value
A6-------ÄN1
A7-------ÄN2
A8-------ÄN3
Example: analog value comparator, detection of
operating states
Several analog value comparators can be used to evaluate
different operating states. In this case 3 different operating
states are evaluated.
Parameter settings of three analog value comparators:
First operating state
A6 EQ
+
I1
I7
Æ
I2
0500
æ
F1
F2
OS
HY
+0
+0
+0
0025
Second operating state
A7 EQ
I7
Æ
I2
0700
æ
F1
F2
OS
HY
MN05013003E
+
I1
+0
+0
+0
0025
Third operating state
A8 EQ
+
I1
I7
Æ
I2
0850
æ
F1
F2
OS
HY
For more information visit: www.EatonElectrical.com
+0
+0
+0
0025
113
EZ500_700.book Page 114 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
A1-------ÄM9
A1 LT
+
I1
I7
Æ
I2
I8
æ
F1
F2
OS
HY
+0
+0
Example: analog value comparator, comparison of two
analog values
To compare two analog values, you can use the following
circuit. In this case, the comparison determines whether I7 is
less than I8.
Parameter settings of the analog value comparator
+0
0025
Counters
EZ provides 16 up/down counters C1 to C16 for use as
required. The counter relays allow you to count events. You
can define an upper threshold value as a comparison value.
The contact will switch according to the actual value.
High-speed counters, frequency counters up to 1 kHz counter
frequency.
EZ-DA and EZ-DC feature four high-speed counters C13 to
C16. The function is defined by the mode selected. The
counter input is connected directly to a digital input. The highspeed digital inputs are I1 to I4.
Possible applications include the counting of components,
lengths, events and frequency measurement.
J
114
If required, the same counters can also be used for
retentive data.
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MN05013003E
EZ500_700.book Page 115 Tuesday, May 3, 2005 5:15 PM
Counters
Table 11:
Counter modes
Counters
Mode
C1 to C12
N
Up/down counters
C13, C14
N or H
Up/down counters or
high-speed up counters
(EZ-DA, EZ-DC)
C15, C16
N or F
Up/down counters or
frequency counters
(EZ-DA, EZ-DC)
Wiring of a counter
You integrate a counter into your circuit in the form of a
contact and coil. The counter relay has different coils.
J
To prevent unpredictable switching states, use each coil of
a relay once only in the circuit diagram.
Do not use the input of a high-speed counter as a contact in
the circuit diagram. If the counter frequency is too high only
a random input value will be used in the circuit diagram.
I5-------CC2
I6-------DC2
I7-------RC2
C2-------SM9
EZ circuit diagram with counter relay
The coils and contacts have the following meanings:
Contact
C1 to C16
MN05013003E
Coil
The contact switches if the
actual value is greater than or
equal to the setpoint.
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115
EZ500_700.book Page 116 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Coil
Contact
C2 N
S
00000
+
CC1 to CC16
Counter input, rising edge
counts
DC1 to DC16
Counting direction
• Coil not triggered: up
counting.
• Coil triggered: down
counting.
RC1 to RC16
Reset, coil triggered: actual
value reset to 00000
Parameter display and parameter set for the counter
relay:
C2
Counter function relay number 2
N
• Mode N: up/down counter
• Mode H: high-speed up/down counter.
• Mode F: frequency counter
+
•
•
S
Setpoint, constant from 00000 to 32000
+
-
appears in the PARAMETER menu.
does not appear in the PARAMETER menu.
In the parameter display of a counter relay you change the
mode, the setpoint and the enable of the parameter display.
Value range
The counter relay counts between 0 and 32000.
Behavior when value range is reached
The EZ control relay is in RUN mode.
If the value of 32000 is reached, this value will be retained
until the count direction is changed. If the value of 00000 is
reached, this value will be retained until the count direction is
changed.
116
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MN05013003E
EZ500_700.book Page 117 Tuesday, May 3, 2005 5:15 PM
Counters
Parameter display in RUN mode:
C1 N
S
00309
# C:00042
+
Current setpoint, constant (0309)
# Contact has not switched.
â Contact has switched.
Actual value (00042)
Retention
Counter relays can be operated with retentive actual values.
You can select the retentive counter relays in the SYSTEM…
J RETENTION… menu. C5 to C7, C8 and C13 to C16 can
be selected.
If a counter relay is retentive, the actual value is retained when
the operating mode changes from RUN to STOP as well as
when the power supply is switched off.
When EZ is restarted in RUN mode, the counter relay
continues with the retentively stored actual value.
Determining counter frequency
The maximum counter frequency depends on the length of the
circuit diagram in EZ. The number of contacts, coils and rungs
used determines the run time (cycle time) required to process
the EZ circuit diagram.
Example: When using EZ512-DC-TC with only three rungs for
counting, resetting and outputting the result via the output, the
counter frequency may be 100 Hz.
The maximum counter frequency depends on the maximum
cycle time.
The following formula is used to determine the maximum
counter frequency:
fc =
1
2 × tc
× 0.8
fc = maximum counter frequency
tc = maximum cycle time
0.8 = Correction factor
MN05013003E
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117
EZ500_700.book Page 118 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Example
The maximum cycle time is tc = 4000 µs (4 ms).
fc =
1
2 × 4 ms
× 0.8 = 100 Hz
Function of the counter function relay
:
on
1
on
2
A
on
B
C
D
3
4
5
6
0
1
2
3
4
5
6
7
8
on
Figure 54:
Signal diagram
1: Count pulses at the count coil CC…
2: Count direction, direction coil DC…
3: Reset signal at the reset coil RC…
4: Counter setpoint (the setpoint in the figure = 6)
5: actual value of the counter
6: contact of the counter, C
• Range A: The relay contact of counter C with setpoint value
6 switches when the actual value is 6.
• Range B: If the counting direction is reversed B, the contact is
reset when the actual value is 5.
• Range C: Without count pulses the current actual value is
retained.
• Range D: The reset coil resets the counter to 0.
118
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MN05013003E
EZ500_700.book Page 119 Tuesday, May 3, 2005 5:15 PM
Counters
Example: counters, counting unit quantities, manual
counter value reset
The input I6 contains the necessary counter information and
controls the count coil CC1 of counter 1. Q4 is activated if the
setpoint is reached. Q4 remains switched on until I7 resets
counter C1 to zero with the RC1 coil.
Circuit diagram display
I6-------CC1
C1-------ÄQ4
I7-Q4----RC1
Parameter settings of the
C1 counter
C1 N
S
00100
+
Example: counting unit quantities, automatic counter
value reset
The input I6 contains the necessary counter information and
controls the count coil CC2 of counter 2. M8 will be switched
on for one program cycle if the setpoint is reached. The
counter C2 is automatically set to zero by the Reset coil RC2.
Circuit diagram display
I6-------CC2
C2------uÄM8
hRC2
MN05013003E
Parameter settings of the
C2 counter
C2 N
S
01000
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+
119
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Wiring with EZ
Example of a two counter cascade
Another counter is added to the previous example. As the
contact of counter C2 is only set to 1 for one program cycle,
the carry of counter C2 is transferred to counter C3. The
counter C3 prevents further counting when its setpoint is
reached.
Circuit diagram display
I6-c3----CC2
C2------uÄM8
dRC2
Parameter settings of the
C2 counter
C2 N
S
01000
+
hCC3
C3-------ÄQ2
I8-Q2----RC3
25000 pulses are
counted.
25 × 1000 = 25000
Parameter settings of the
C3 counter
C3 N
S
00025
+
Example: up/down counting with a scan for actual
value = zero
The input I6 contains the necessary counter information and
controls the count coil CC6 of counter 6. Marker N2 is set if the
setpoint is reached. Marker N2 controls the direction coil DC6
of counter C6. If N2 is 1 (activated), counter C6 counts down.
If the actual value of the counter is 00000, the analog value
120
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MN05013003E
EZ500_700.book Page 121 Tuesday, May 3, 2005 5:15 PM
Counters
comparator A6 resets marker N2. The direction coil DC6 of
counter C6 is reset. The counter C6 only operates as an up
counter.
Circuit diagram display
I6-------CC6
C6-------SN2
N2-------DC6
Parameter settings of counter
C6
C6 N
S
01000
+
A6-N2----RN2
Parameter settings of analog value comparator A6
A6 EQ
C6
Æ
I2
0000
æ
F1
F2
OS
HY
J
+
I1
+0
+0
+0
+0
The above example scans the value zero. However, any
permissible value within the range of the analog value
comparator function block can be entered.
Example: counter with retentive actual value
Select a retentive counter if you wish to retain the actual value
of a counter, even after a power failure or a change from RUN
to STOP.
XSelect the required counter in the
SYSTEM… J RETENTION… menu.
MN05013003E
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121
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Wiring with EZ
M 9 - M12
Æ
M13 - M16
The example shows the counters C5 to C7 as retentive
counters.
Circuit diagram display
N 9 - N16
C 5 - C 7 åæ
I6-------CC5
C13 - C16
I8-Q3----RC5
C 8
T 7
T 8
C5-------ÄQ3
Parameter settings of counter C5
C5 N
S
00565
+
The counter has the value 450 before the power supply is
switched off.
T13 - T16
D 1 - D 8
U
햲
Figure 55:
햲
Retentive counter
 The numerical value 450 is retained even after a power outage.
U = supply voltage of the device
High-speed counters, EZDA, EZ-DC
EZ provides various high-speed counter functions. These
counter function blocks are coupled directly to digital inputs.
The following functions are possible:
• Frequency counters: C15 and C16
• High-speed counters: C13 and C14.
Frequency counters
EZ provides two frequency counters C15 and C16 for use as
required. The frequency counters can be used for measuring
frequencies. The high-speed frequency counters are
permanently connected to the digital inputs I3 and I4.
Frequency counters C15 and C16 can be used for
determining motor speeds, volume measurement using
volume meters or the running of a motor.
122
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MN05013003E
EZ500_700.book Page 123 Tuesday, May 3, 2005 5:15 PM
High-speed counters, EZ-DA, EZ-DC
The frequency counter allows you to enter an upper threshold
value as a comparison value. The C15 and C16 frequency
counters are not dependent on the cycle time.
Counter frequency and pulse shape
The maximum counter frequency is 1 kHz.
The minimum counter frequency is 4 Hz.
The signals must be square waves. We recommend a markto-space ratio of 1:1.
If this is not the case:
The minimum mark-to-space ratio is 0.5 ms.
tmin = 0.5 ×.
1
fmax
tmin = minimum time of the pulse or pause duration
fmax = maximum count frequency (1 kHz)
J
Frequency counters operate independently of the program
cycle time. The result of the actual value setpoint
comparison is only transferred once every program cycle
for processing in the circuit diagram.
The reaction time in relation to the setpoint/actual value
comparison can therefore be up to one cycle.
Measurement method
The pulses on the input are counted for one second
irrespective of the cycle time, and the frequency is
determined. The measurement result is provided as an actual
value.
Wiring of a frequency counter
The following assignment of the digital inputs apply.
• I3 counter input for frequency counter C15
• I4 counter input for frequency counter C16.
MN05013003E
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Wiring with EZ
J
---------CC15
C15-------SQ3
I8--------
If you use C15 or C16 as frequency counters, coils DC15 or
DC16 will have no function. The counter signals are
transferred directly from the digital inputs I3 and I4 to the
counters. A frequency counter measures the actual value
and does not measure a direction.
You only integrate a frequency counter into your circuit in the
form of a contact and enable coil. The coils and contacts have
the following meanings:
Contact
RC15
C15
C16
J
C15 F
S
124
00200
+
Coil
to
The contact switches if the actual
value is greater than or equal to
the setpoint.
CC15, CC16
Enable of the frequency counter
on “1” state, coil activated
RC15, RC16
Reset, coil triggered: actual value
reset to 00000
The frequency counter can also be enabled specifically for
a special operating state. This has the advantage that the
cycle time of the device is only burdened with the frequency
measurement when it is taking place. If the frequency
counter is not enabled, the cycle time of the device is
shorter.
Parameter display and parameter set for frequency
counter:
C15
Counter function relay number 15
F
Mode F: frequency counter
+
•
•
S
Setpoint, constant from 00000 to 01000
(32000 is a possible setting, the maximum frequency is
1 kHz)
+
-
appears in the PARAMETER menu.
does not appear in the PARAMETER menu.
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MN05013003E
EZ500_700.book Page 125 Tuesday, May 3, 2005 5:15 PM
High-speed counters, EZ-DA, EZ-DC
In the parameter display of a counter relay you change the
mode, the setpoint and the enable of the parameter display.
Value range
The counter relay counts between 4 and 1000 [Hz].
Parameter display in RUN mode:
C15 F
S
00200
# C:00153
+
Current setpoint, constant (0309)
# Contact has not switched.
â Contact has switched.
Actual value (0153)
Retention
Setting retention on the frequency counter serves no purpose
since the frequency is continuously remeasured.
MN05013003E
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Wiring with EZ
Function of the frequency counter
1
2
B
A
D
C
3
4
5
tg
tg
tg
tg
Figure 56:
tg
tg
tg
tg
tg
Signal diagram of the frequency counter
1: counter input I3 or I4
2: upper setpoint
3: enable coil CC…
4: reset coil RC…
5: contact (make contact) C... upper setpoint value reached.
tg: gate time for the frequency measurement
• Range A: the counter is enabled. Contact C15 (C16) switches
after a frequency above the setpoint was measured for the first
time.
• Range B: If the actual value falls below the setpoint, the contact is
reset. The removal of the enable signal resets the actual value to
zero.
• Range C: the counter is enabled. After a frequency above the
setpoint was measured for the first time, contact C15 (C16)
switches.
• Range D: The reset coil resets the actual value to zero.
126
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EZ500_700.book Page 127 Tuesday, May 3, 2005 5:15 PM
High-speed counters, EZ-DA, EZ-DC
Example: frequency counter
Frequency counters with different switch points
The frequency measured at input I3 is to be classified in
different value ranges. The analog value comparator is used
as an additional comparison option.
The counter is enabled via marker N3. The value 900 or
higher is detected by frequency counter C15 as the upper limit
value. This triggers the coil of marker N4.
If the frequency is higher than 600 Hz, analog value
comparator A1 indicates this and triggers marker N5.
If the frequency is higher than 400 Hz, analog value
comparator A2 indicates this and triggers marker N6.
Circuit diagram display
N3-------CC15
C15-------ÄN4
A1-------ÄN5
Parameter settings of the
counter C15
C15 F
S
00900
+
A2-------ÄN6
Parameter settings of the
analog value comparator A1
A1 GE
I1
C15
I2
0600
F1
F2
OS
HY
MN05013003E
+0
+0
+0
+0
+
Æ
æ
Parameter settings of the
analog value comparator A2
A2 GE
I1
C15
F1
+0
F2
+0
I2
OS
HY
For more information visit: www.EatonElectrical.com
0400
+
Æ
æ
+0
+0
127
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Wiring with EZ
High-speed counter
You can use the high-speed counters to count high frequency
signals reliably.
EZ provides two high-speed up/down counters C13 and C14
for use as required. The high-speed counter inputs are
permanently connected to the digital inputs I1 and I2. These
counter relays allow you to count events independently of the
cycle time.
The high-speed counters allow you to enter an upper
threshold value as a comparison value. The C13 and C14
high-speed counters are not dependent on the cycle time.
Counter frequency and pulse shape
The maximum counter frequency is 1 kHz.
The signals must be square waves. We recommend a markto-space ratio of 1:1.
If this is not the case:
The minimum mark-to-space ratio is 0.5 ms.
tmin = 0.5 ×.
1
fmax
tmin = minimum time of the pulse or pause duration
fmax = maximum count frequency (1 kHz)
J
High-speed counters operate independently of the program
cycle time. The result of the actual value setpoint
comparison is only transferred once every program cycle
for processing in the circuit diagram.
The reaction time in relation to the setpoint/actual value
comparison can therefore be up to one cycle in length.
Wiring of a high-speed counter
The following assignment of the digital inputs apply.
• I1: high-speed counter input for counter C13.
• I2: high-speed counter input for counter C14.
128
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EZ500_700.book Page 129 Tuesday, May 3, 2005 5:15 PM
High-speed counters, EZ-DA, EZ-DC
J
---------CC13
C13-------SN3
I6-------DC13
I8-C13----RC13
If you use C13 or C14 as high-speed counters you must
enable them with the coil CC13 or CC14 accordingly.
You integrate a high-speed counter into your circuit in the form
of a contact and coil.
.
The coils and contacts have the following meanings:
Contact
C13
C14
J
C13 H
S
MN05013003E
00950
+
Coil
to
The contact switches if the actual
value is greater than or equal to
the setpoint.
CC13, CC14
Enable of the high-speed counter
on 1 signal coil activated
DC13, DC14
Counting direction
• Status 0, not activated, up
counting.
• Status 1, activated, down
counting.
RC13, RC14
Reset, coil triggered: actual value
reset to 00000
The high-speed counter can also be enabled specifically for
a special operating state. This has the advantage that the
cycle time of the device is only burdened with the counting
when it is taking place. If the high-speed counter is not
enabled, the cycle time of the device is shorter.
Parameter display and parameter set for the high-speed
counter:
C13
Counter function relay number 13
H
H high-speed counter mode (H = high speed)
+
•
•
S
Setpoint, constant from 00000 to 32000
+
-
appears in the PARAMETER menu.
does not appear in the PARAMETER menu.
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129
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Wiring with EZ
In the parameter display of a counter relay you change the
mode, the setpoint and the enable of the parameter display.
Value range
The counter relay counts between 0 and 32000.
Behavior when value range is reached
The EZ control relay is in RUN mode.
The value is retained if the counter reaches 32000. If the
counter counts down and reaches 0, this value is retained.
Parameter display in RUN mode:
C13 H
S
00950
# C:00877
+
Current setpoint, constant (1250)
# Contact has not switched.
â Contact has switched.
Actual value (877)
Retention
The high-speed counter can be run with the retentive actual
value. You can select the retentive counter relays in the
SYSTEM… J RETENTION… menu. C5 to C7, C8 and C13
to C16 can be selected.
If a counter relay is retentive, the actual value is retained when
the operating mode changes from RUN to STOP as well as
when the power supply is switched off.
When EZ is restarted in RUN mode, the counter relay
continues with the retentively stored actual value.
130
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EZ500_700.book Page 131 Tuesday, May 3, 2005 5:15 PM
High-speed counters, EZ-DA, EZ-DC
Function of the high-speed counter function block
1
......... .........
.........
2
4
3
3
2
1
0
A
B
C
D
E
F
4
5
6
7
Figure 57:
Signal diagram of the high-speed counter
1: count pulses at counter input I1(I2)
2: setpoint of the counter
3: actual value of the counter
4: enable of the counter, CC13 (CC14)
5: count direction, direction coil DC13 (DC14)
6: reset coil of the counter RC13 (RC14)
MN05013003E
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131
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Wiring with EZ
7: contact of the counter, C13 (C14)
• Range A: The relay contact C13 (C14) of the counter with setpoint
value 512 switches as soon as the actual value is 512.
• Range B: When new count pulses or the counter enable are not
present, the actual value is retained.
• Range C: If the count direction is reversed DC13 (DC14), the
contact is reset when the actual value is 511.
• Range D: the count direction is set to up counting
• Range E: The Reset coil RC13 (RC14) resets the counter to 0. No
pulses are counted.
• Range F: the Reset coil is not active, pulses are counted.
J
In the examples it must be remembered that there may be
a time difference of up to one program cycle between the
setpoint/actual value comparison and the processing of the
result. This may cause deviations in values.
Example: counting measuring pulses and setting an
output
Measuring pulses can represent lengths, rotations, angles or
other values. These program sections are required for
applications involving the filling of sacks, bags or the cutting of
foil.
The count signals are continuously present at I1. The highspeed counter C13 counts these pulses. The counter is
automatically set to zero if the actual value equals the
setpoint. Contact C13 is then set for one program cycle. The
output Q3 is set at the same time. This is then reset by input
I8.
Circuit diagram display
N1-------CC13
C13-------SQ13
C13-------RC13
Parameter settings of the
C13 counter
C13 H
S
1000
+
I8-------RQ13
132
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EZ500_700.book Page 133 Tuesday, May 3, 2005 5:15 PM
High-speed counters, EZ-DA, EZ-DC
Example running motors or spindles in parallel.
Applications may involve motion control with the parallel
control of two drives. Only certain deviations are permissible
so that the mechanical system does not jam.
These tasks can be implemented with the following solution.
I8 starts the drives. I7 and I6 carry the feedback signals of the
motor-protective circuit-breakers. The drives are stopped if a
motor-protective circuit-breaker trips. The analog value
comparators control the difference of the path distance. The
appropriate drive is stopped temporarily if one path distance
is outside of the set tolerance. The coils and contacts have the
following meanings:
• M8 = enable for all drives
• Q1 = drive 1, counter drive 1 is connected with input I1 and
this with high-speed counter C13.
• Q2 = drive 2, counter drive 2 is connected with input I2 and
this with high-speed counter C14.
• A1 = comparison, if C13 is less than C14, drive 2 is too fast.
• A2 = comparison, if C14 is less than C13, drive 1 is too fast.
• A3 = comparison, if C13 and C14 are equal, both drives can
be activated.
• The hysteresis value of A1, A2 and A3 depends on the
resolution of the transducer and the mechanical system.
Circuit diagram display
I8-I7-I6-ÄM8
M8ua2u---ÄQ1
dA3k
Parameter settings of the counter C13
C13 H
S
+0
+
da1u---ÄQ2
hA3k
--------uCC13
hCC14
MN05013003E
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133
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Wiring with EZ
Parameter settings of the counter C14
C14 H
S
+0
+
Parameter setting of analog value comparators A1 and A2
A1 LT
I1
Æ
C14
æ
F1
+0
F2
+0
I2
OS
HY
+
C13
+0
0015
A2 LT
+
I1
C14
Æ
I2
C13
æ
F1
F2
OS
HY
+0
+0
+0
0015
Parameter settings A3
A1 EQ
I1
C13
Æ
I2
C14
æ
F1
F2
OS
HY
Text display
134
+
+0
+0
+0
0020
EZ500 and EZ700 can display up to 16 user-defined texts.
These texts can be triggered by the actual values of function
relays such as timing relays, counters, operating hours
counters, analog value comparators, date, time or scaled
analog values. The setpoints of timing relays, counters,
operating hours counters, analog value comparators can be
modified when the text is displayed. The texts are saved in
the EZSoft file or on the EZ-M-32K memory card for EZ500
and EZ700.
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MN05013003E
EZ500_700.book Page 135 Tuesday, May 3, 2005 5:15 PM
Text display
Wiring a text display
i5-------ÄD2
You integrate a text display into your circuit in the form of a
contact and coil.
D2u------ÄT5
The coils and contacts have the following meanings:
i6-------ÄD3
D3k
Contact
D1
Coil
to D16
Coil of the corresponding text
display is triggered
Ä, Å, è, ^, ä,
S, R
D1
to D16
If a coil is triggered, the text is
shown in the display.
The text display does not have a parameter display in the
PARAMETER menu.
Retention
The texts D1 to D8 can be operated with retentive actual
values (contacts).
If the text displays are retentive, the actual value is retained
when the operating mode changes from RUN to STOP as well
as when the power supply is switched off.
When EZ is restarted in RUN mode, the text displays D1 to D8
continue with the retentively stored actual value.
MN05013003E
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135
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Wiring with EZ
Example of a text display:
SWITCH;
The text display can display the following:
CONTROL;
DISPLAY;
EASY! EASY!
RUNTIME M:S
T1 :012:46
C1 :0355
PRODUCED
ST
Line 1, 12 characters
Line 2, 12 characters, a setpoint or actual value
Line 3, 12 characters, a setpoint or actual value
Line 4, 12 characters
Scaling
The values of the analog inputs can be scaled.
Range
Selectable display
range
Example
0 to 10 V
0 to 9999
0000 to 0100
0 to 10 V
± 999
–025 to 050
0 to 10 V
± 9.9
–5.0 to 5.0
Function
The D (D = “Display”) text display function relay works in the
circuit diagram like a normal M marker. A “1” signal at the coil
will cause a stored text to be displayed in the EZ display line.
For this to take place, the EZ must be in RUN mode and the
Status display must be activated before the text is displayed.
D2 to D16:
If several texts are present and are triggered, each text is
automatically displayed in turn every 4 s. This process will be
repeated until
• No other text display function block is set to “1”.
• STOP mode is selected.
• EZ's power supply is no longer present.
136
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EZ500_700.book Page 137 Tuesday, May 3, 2005 5:15 PM
Text display
• The OK or DEL + ALT buttons are used to switch to a
menu.
• A setpoint is entered.
• The text for D1 is displayed.
D1:
D1 is designed as an alarm text. If D1 is activated, the text
assigned to it will be displayed until
•
•
•
•
The coil D1 is reset to 0.
STOP mode is selected.
EZ's power supply is no longer present.
The OK or DEL + ALT buttons are used to switch to a
menu.
Character set
All ASCII characters in upper and lower case are permissible.
• ABCDEFGHIJKLMNOPQRSTUVWXYZ
• abcdefghijklmnopqrstuvwxyz
The following special characters are permissible:
! „“ # $ % & ’ () * + , – ./0 1 2 3 4 5 6 7 8 9
Counter with actual value
QUANTITY
TEMPERATURE
!COUNTING!
IN
PCE:0042
Figure 58:
MN05013003E
Analog input scaled as
temperature value
OUT -010 DEG
+018 DEG
HEAT..
D1 as error message on
fuse failure
FUSE
FAILURE
HOUSE 1
Text output examples
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137
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Wiring with EZ
Entering a setpoint in a display
A text can contain two values such as actual values and
setpoints of function relays, analog input values and time and
date. The position of setpoints and actual values is fixed to the
center of lines 2 and 3. The length depends on the value to be
displayed. Setpoint entries in the text display are useful if the
PARAMETER menu is not available for display or entry. Also
when the operator is to be shown which setpoint is being
modified.
RUNTIME M:S
T1 :012:46
C1 :0355
PRODUCED
ST
Line 1
Line 2, setpoint can be edited
Line 3, setpoint can be edited
Line 4
J
The corresponding text function block must be displayed in
order to change a setpoint. The setpoint must be a
constant.
J
When values are being entered, the text is retained
statically on the display. The actual values are updated.
The example shows the following.
The setpoint of timing relay T1 is to be changed from 12
minutes to 15 minutes.
• Line 2: setpoint of timing relay T1, can be edited.
• Line 3: actual value of timing relay T1.
STIR
S :
M:S
The text is displayed.
012:00
ACT: 008:33
BREAD ROLLS
138
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EZ500_700.book Page 139 Tuesday, May 3, 2005 5:15 PM
Text display
STIR
S :
M:S
012:00
XPressing the ALT button will cause the cursor to jump to the
first editable value.
ACT: 008:33
In this operating mode, you can use the cursor buttons ÍÚ to
move between different editable constants.
STIR
XPress the OK button, the cursor will jump to the highest
digit of the constant to be modified.
S :
M:S
012:00
BREAD ROLLS
In this operating mode use the cursor buttons ÍÚ to modify
the value. Use the cursor buttons ú í to move between digits.
STIR
Use the OK button to accept the modified value. Use the ESC
button to abort the entry and leave the previous value.
ACT: 008:33
S :
M:S
015:00
ACT: 008:34
BREAD ROLLS
STIR
S :
M:S
015:00
ACT: 008:34
BREAD ROLLS
STIR
S :
M:S
XPress the OK button, the cursor will move from constant to
constant.
The modified value is accepted.
Press the ESC button to leave Entry mode.
015:00
ACT: 008:34
BREAD ROLLS
MN05013003E
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Wiring with EZ
7-day time switch
EZ500 and EZ700 with type suffix EZ…-..-.C. are provided
with a real-time clock. The time switches can only be used
effectively in these devices.
J
The procedure for setting the time is described under
section “Setting date, time and daylight saving time” on
page 209.
EZ offers eight 7-day time switches Ö1 to Ö8 for up to 32
switch times.
Each time switch has four channels which you can use to set
four on and off times. The channels are set via the parameter
display.
The timer has a back-up battery. This means that it will
continue to run in the event of a power failure, although the
time switch relays will not switch. When the timer is
disconnected from the power supply, the contacts remain
open. Information on the battery back-up time are provided on
page 260.
Ö1u------ÄQ1
Ö2k
A 7-day time switch can be integrated into your circuit in the
form of a contact.
Contact
Ö1
Ö1 A
D
SU
OFF
--:--
ON
140
+
--:--
Coil
to Ö8
Contact of the 7-day time switch
Parameter display and parameter set for 7-day time
switch:
Ö1
7-day time switch function relay 1
A,B,
C,D
Time switch channels
+
•
•
D
Day setting, from -- to --
ON
On time
OFF
Off time
+
-
appears in the PARAMETER menu,
does not appear in the PARAMETER menu.
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EZ500_700.book Page 141 Tuesday, May 3, 2005 5:15 PM
7-day time switch
The parameter display for a 7-day time switch is used to
modify the weekdays, the on time, the off time and enable of
the parameter display.
Table 12:
On and off times
Parameters
Meaning
Meaningful values
Day of the
week
Monday to Sunday
MO, TU, WE, TH, FR,
SA, SU, --
On time
Hours: Minutes:
No time set at “--:--”
00:00 to 23:59, --:--
Off time
Hours: Minutes:
No time set at “--:--”
00:00 to 23:59, --:--
Parameter display in RUN mode:
Ö1 A 11:30 +
D
MO-FR
OFF
19:30 â
ON
06:45
Selected channel, current time (only in RUN)
Weekday(s) from - to
On time
Off time
# Contact has not switched.
â Contact has switched.
Changing time switch channel
You can change time switch channel in either RUN or STOP
mode by selecting the channel required with the cursor
buttons ÍÚ.
Ö1 A 11:30 +
D
MO-FR
OFF
19:30 â
ON
MN05013003E
06:45
Example:
The parameter display of the 7-day time switch is active. The
cursor is flashing on channel A.
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Wiring with EZ
Ö1 B 11:30 +
D
SA
OFF
15:00 â
ON
06:45
XPress the Í button to move the cursor to channel B.
Press the í button to reach any value that can be edited.
Function of the 7-day time switch
The following examples illustrate the function of the 7-day
time switch.
Work days example
The time switch Ö1 switches on Monday to Friday between
6:30 and 9:00 and between 17:00 and 22:30.
Ö1 A
D
MO-FR
OFF
09:00
ON
+
06:30
Figure 59:
Ö1 B
D
MO-FR
OFF
22:30
ON
+
17:00
Work days signal diagram
Weekends example
Time switch Ö2 switches on at 16:00 on Friday and switches
off at 6:00 on Monday.
Ö2 A
D
FR
OFF
--:--
ON
142
16:00
+
Ö2 B
D
ON
OFF
MO
+
--:--
06:00
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MN05013003E
EZ500_700.book Page 143 Tuesday, May 3, 2005 5:15 PM
7-day time switch
Figure 60:
Weekend switching signal diagram
Night switching example
Time switch Ö3 switches on at 22:00 on Monday and
switches off at 6:00 on Tuesday.
Ö3 D
D
MO
OFF
06:00
ON
22:00
Figure 61:
J
+
Night switching signal diagram
If the off time is before the on time, EZ will switch off on the
following day.
Time overlaps example
The time settings of a time switch overlap. The clock switches
on at 16:00 on Monday, whereas on Tuesday and Wednesday
it switches on at 10:00. On Monday to Wednesday the off time
is 22:00.
Ö4 A
D
MO-WE
OFF
22:00
ON
MN05013003E
16:00
+
Ö4 B
D
ON
OFF
+
TU-WE
10:00
00:00
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Wiring with EZ
Figure 62:
J
Time overlaps signal diagram
On and off times always follow the channel which switches
first.
Power failure example
The power is removed between 15:00 and 17:00. The relay
drops out and remains off, even after the power returns, since
the first off time was at 16:00.
Ö4 A
D
MO-SU
OFF
16:00
ON
J
+
12:00
Ö4 B
D
ON
OFF
+
MO-SU
12:00
18:00
When it is switched on, EZ always updates the switching
state on the basis of all the available switching time
settings.
24 hour switching example
The time switch is to switch for 24 hours. On time at 0:00 on
Monday and off time at 0:00 on Tuesday.
Ö1 A
D
MO
OFF
--:--
ON
144
00:00
+
Ö1 B
D
TU
OFF
00:00
ON
+
--:--
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MN05013003E
EZ500_700.book Page 145 Tuesday, May 3, 2005 5:15 PM
Operating hours counter
Operating hours counter
EZ provides 4 independent operating hours counters. These
operating hours counters enable you to record the operating
hours of systems, machines and machine parts. An adjustable
setpoint can be selected within the value range. In this way,
maintenance times can be logged and reported. The counter
states are retained even when the device is switched off. As
long as the count coil of the operating hours counter is active,
EZ counts the hours in second cycles.
I2-------ÄO1
O1uI8----RO1
h------TT1
T1-------ÄQ3
O4
S
000000
O:
+
You integrate an operating hours counter into your circuit in
the form of a contact and coil.
Contact
O1
Coil
to O4
ÄO1
to ÄO4
Count coil of the operating hours
counter
RO1
to RO4
Reset coil of the operating hours
counter
Parameter display and parameter set for the operating hours
counter function block:
O4
Operating hours counter number 4
+
•
•
S
Setpoint in hours
O:
Actual value of the operating hours counter in hours [h]
+
-
appears in the parameter display
appears in the parameter display
In the parameter display of an operating hours counter you
change the setpoint in hours and the enable of the parameter
display.
MN05013003E
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145
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Wiring with EZ
Parameter display in RUN mode:
O1
+
S
001000
#
O:000309
Set time in hours
Actual time in hours
# Contact has not switched.
â
Contact has switched.
Value range of the operating hours counter
The operating hours counter counts in the range from 0 hours
to way over 100 years.
Accuracy of the operating hours counter
The operating hours counter counts in seconds. When the
device is switched off, up to 999 ms can be lost.
Function of the operating hours counter function block
When the coil of the O operating hours counter is set to 1, the
counter increments its actual value by 1 (basic pulse: 1
second).
If the actual value of the operating hours counter reaches the
setpoint of S, the contact O... switches for as long as the
actual value is greater than or equal to the setpoint.
The actual value is kept stored in the device until the Reset
coil RO... is triggered. The actual value is then set to zero.
146
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MN05013003E
EZ500_700.book Page 147 Tuesday, May 3, 2005 5:15 PM
Operating hours counter
J
Operating mode change RUN, STOP, power On, Off,
Delete program, Change program, Load new program. All
these functions do not clear the actual value of the
operating hours counter.
Example: operating hours counter
Operating hours counter for the operating time of a machine.
The time in which a machine (EZ) is energized is to be
measured.
Circuit diagram display
---------ÄO1
Parameter settings of
operating hours counter O1
O1
S
000000
+
Example: maintenance meters for different machine
areas
Machine areas have to be maintained after different times
have elapsed. Markers N1 and N2 are the on markers of two
different machine areas. These markers control the
associated operating hours counters. Output Q4 switches on
a warning light if the setpoint of an operating hours counter
has been reached. A keyswitch at input I8 resets the
associated operating hours counter after maintenance has
been completed.
Circuit diagram display
N1-------ÄO2
N2-------ÄO3
O2u------ÄQ4
Parameter settings of
operating hours counter O2
O2
S
000500
+
O3k
I8uO2----RO2
hO3----RO3
MN05013003E
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147
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Wiring with EZ
Parameter settings of
operating hours counter O3
O3
S
000800
+
Example maintenance meter for different machine
sections, with text output
The entire machine operating time is to be counted. Machine
areas have to be maintained after different times have
elapsed. Markers N1 and N2 are the On markers of two
different machine areas. These markers control the
associated operating hours counters. Output Q4 switches on
a warning light if the setpoint of an operating hours counter
has been reached. This should flash. A keyswitch at input I8
resets the associated operating hours counter after
maintenance has been completed.
The entire machine operation time is to be displayed
continuously. The run time of the machine sections should
only be displayed once the maintenance interval has elapsed.
Circuit diagram display
---------ÄO1
O1-------ÄD4
N1-------ÄO2
Parameter settings of
operating hours counter O1
O1
S
000000
+
N2-------ÄO3
O2u------TT4
O3k
T4-------ÄQ4
O2uI8----RO2
h------ÄD2
O3uI8----RO3
h------ÄD3
148
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MN05013003E
EZ500_700.book Page 149 Tuesday, May 3, 2005 5:15 PM
Operating hours counter
Parameter settings of
operating hours counter O2
O2
S
000500
+
Parameter setting of timing
relay T1
T1 Ü
I1
I2
S
02.000
+
01.500
T:
Text of text display D3
O3
S
000800
MAINTENANCE
REQUIRED
HRS:000501
MACHINE 01
Text of text display D4
RUNTIME
HRS:000800
HRS:001955
MACHINE 02
+
Text of text display D2
MAINTENANCE
REQUIRED
MN05013003E
Parameter settings of
operating hours counter O3
MACHINE
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149
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Wiring with EZ
Timing relays
EZ provides 16 timing relays T1 to T16 for use as required.
A timing relay is used to change the switching duration and the
make and break times of a switch contact. The delay times
can be configured between 2 ms and 99 h 59 min. You can
use positive values, values of analog inputs, actual values of
counter relays and timing relays.
You can also use EZ as a multi-function relay in the
application. EZ is more flexible than any hard-wired timing
relay since you can wire all the functions at the push of a
button as well as program additional functions.
J
I1-I4----TT1
T1-------ÄQ3
The “flash” function starts on EZ500 and EZ700 with the
pulse. If required, the same timing relays can also be used
for retentive data.
You integrate a timing relay into your circuit in the form of a
contact and coil.
Contact
T1
J
T1 X
I1
I2
150
S
00.000
00.000
T:
+
Coil
to T16
Contact of a timing relay
TT1
to TT16
Enable, timing relay trigger
RT1
to RT16
Reset coil of the timing relay
HT1
to HT16
Stop coil of the timing relay
(H = Stop , S means the Set coil
function)
To prevent unpredictable switching states, use each coil of
a relay once only in the circuit diagram.
Parameter display and parameter set for a timing relay:
T1
Timing relay number 1
X
On-delayed mode
S
Time range in seconds
+
•
•
+
-
appears in the PARAMETER menu.
does not appear in the PARAMETER menu.
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MN05013003E
EZ500_700.book Page 151 Tuesday, May 3, 2005 5:15 PM
Timing relays
I1
Time setpoint 1:
• Positive value, I7, I8, I11, I12
• Actual value T1 to T16, C1 to C16
I2
Time setpoint 2 (with timing relay with 2 setpoints):
• Positive value, I7, I8, I11, I12
• Actual value T1 to T16, C1 to C16
T:
Display of actual value in RUN mode
In the parameter display of a timing relay you can change the
mode, the time base, the time setpoint 1, time setpoint 2 (if
necessary) and the enable of the parameter display.
Parameter display in RUN mode:
T1 X
I1
I2
S
10.000
00.000
# T:03.305
+
Mode, time base
Time setpoint 1
Time setpoint 2
Actual value of elapsed time
# Contact has not switched.
â Contact has switched.
Retention
Timing relays can be run with retentive actual values. Select
the number of retentive timing relays in the SYSTEM… J
RETENTION… menu. T7, T8, T13 to T16 can be used as
retentive timing relays.
If a timing relay is retentive, the actual value is retained when
the operating mode is changed from RUN to STOP and when
the power supply is switched off.
When EZ is restarted in RUN mode, the timing relay continues
with the retentively stored actual value.
MN05013003E
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151
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Wiring with EZ
J
When EZ is restarted, the status of the trigger pulse must
be the same as on disconnection.
Status 1 with all operating modes:
• on-delayed,
• single pulse,
• flashing.
Status 0 with all operating modes: off-delayed.
Status 1 or 0 (as with disconnection): on-delayed
Timing relay modes
Parameters
Switch function
X
Switch with on-delay
?X
Switch with on-delay and random time range
â
Switch with off-delay
?â
Switch with off-delay and random time range
Xâ
On- and off-delayed, two time setpoints
?Xâ
On- and off-delayed switching with random time, 2 time setpoints
ü
Single pulse switching
Ü
Flash switching, mark-to-space ratio = 1:1, 2 time setpoints
Ü
Flash switching, mark-to-space ratio ≠ 1:1, 2 time setpoints
Time range
152
Parameters
Time range and setpoint time
Resolution
S
Seconds: 0.000 to 99.999 s
1 ms
M:S 00:00
Minutes: Seconds 00:00 to 99:59
1s
H:M 00:00
Hours: Minutes, 00:00 to 99:59
1 min.
00.000
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EZ500_700.book Page 153 Tuesday, May 3, 2005 5:15 PM
Timing relays
J
Minimum time setting:
If a time value is less than EZ's cycle time, the elapsed time
will not be recognized until the next cycle. This may cause
unforeseeable switching states.
Variable values as time setpoint (I7, I8, I11, I12, actual
value T1 to T16, C1 to C16)
J
If the value of the variable is greater than the maximum
permissible value of the configured time range, the
maximum value of the time range will be used as the
setpoint.
J
You can only use analog values as setpoints if the value of
the analog input is stable. Fluctuating analog values reduce
the reproducibility of the time value.
The following conversion rules apply if you are using variable
values such as an analog input:
s time base
Equation: Time setpoint = ( Value × 10) in [ms]
MN05013003E
Value, e.g. analog
input
Time setpoint in [s]
0
00.000
100
01.000
300
03.000
500
05.000
1023
10.230
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153
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Wiring with EZ
M:S time base
Rule: Time setpoint
= Value divided by 60, Integer result = Number of minutes,
remainder is the number of seconds
Value, e.g. analog
input
Time setpoint in
[M:S]
0
00:00
100
01:40
300
05:00
500
08:20
1023
17:03
Time base H:M
Rule: Time setpoint
= Value divided by 60 Integer result = Number of hours,
remainder is the number of minutes
154
Value, e.g. analog
input
Time setpoint in
[H:M]
0
00:00
100
01:40
300
05:00
606
10:06
1023
17:03
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MN05013003E
EZ500_700.book Page 155 Tuesday, May 3, 2005 5:15 PM
Timing relays
Function of the timing relay function block
Timing relay, on-delayed with and without random
switching
Random switching: The contact of the timing relay switches
randomly within the setpoint value range.
1
2
3
4
t
ts
A
Figure 63:
B
t1 + t2 = ts
C
Signal diagram of timing relay, on-delayed
(with and without random switching)
1: trigger coil TTx
2: Stop coil HTx
3: Reset coil RTx
4: switch contact (make contact) Tx
ts: setpoint time
• Range A: The set time elapses normally.
• Range B: The entered setpoint does not elapse normally because
the trigger coil drops out prematurely.
• Range C: The Stop coil stops the time from elapsing.
MN05013003E
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Wiring with EZ
1
2
3
4
ts
Figure 64:
tF
ts
D
E
ts
F
Signal diagram of timing relay, on-delayed
(with and without random switching)
• Range D: The Stop coil is inoperative after the time has elapsed.
• Range E: The Reset coil resets the relay and the contact.
• Range F: The Reset coil resets the time during the timeout
sequence. After the Reset coil drops out, the time elapses
normally.
156
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MN05013003E
EZ500_700.book Page 157 Tuesday, May 3, 2005 5:15 PM
Timing relays
Timing relay, off-delayed with and without random
switching
Random switching: The contact of the timing relay switches
randomly within the setpoint value range.
1
2
3
4
A
Figure 65:
ts
t1 + t 2 = t s
B
C
ts
t
D
Signal diagram of timing relay, off-delayed
(with and without random switching)
1: trigger coil TTx
2: Stop coil HTx
3: Reset coil RTx
4: switch contact (make contact) Tx
ts: setpoint time
• Range A: The time elapses after the trigger coil is deactivated.
• Range B: The Stop coil stops the time from elapsing.
• Range C: The Reset coil resets the relay and the contact. After the
Reset coil drops out, the relay continues to work normally.
• Range D: The Reset coil resets the relay and the contact when the
function block is timing out.
MN05013003E
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157
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Wiring with EZ
1
2
3
4
t1
E
Figure 66:
ts
Signal diagram of timing relay, off-delayed
(with/without random switching with retriggering)
Range E: The Trigger coil drops out twice. The actual time t1 is
cleared and the set time ts elapses completely (retriggerable switch
function).
158
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EZ500_700.book Page 159 Tuesday, May 3, 2005 5:15 PM
Timing relays
Timing relay, on-delayed and off-delayed with and
without random switching
Time value I1: On-delayed time
Time value I2: Off-delayed time
Random switching: The contact of the timing relay switches
randomly within the setpoint value ranges.
1
2
3
4
ts1
Figure 67:
A
ts2
t
B
t1 + t2 = ts1 ts2
C
ts1
D
ts2
Signal diagram of timing relay, on- and off-delayed 1
1: trigger coil TTx
2: Stop coil HTx
3: Reset coil RTx
4: switch contact (make contact) Tx
ts1: pick-up time
ts2: drop-out time
• Range A: The relay processes the two times without any
interruption.
• Range B: The trigger coil drops out before the on-delay is reached.
• Range C: The Stop coil stops the timeout of the on-delay.
• Range D: The Stop coil has no effect in this range.
MN05013003E
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Wiring with EZ
1
2
3
4
ts1
t1 + t2 = ts2
E
Figure 68:
ts1
t
F
ts1
G
ts2
Signal diagram of timing relay, on- and off-delayed 2
• Range E: The Stop coil stops the timeout of the off-delay.
• Range F: The Reset coil resets the relay after the on delay has
elapsed
• Range G: The Reset coil resets the relay and the contact while the
on delay is timing out. After the Reset coil drops out, the time
elapses normally.
1
2
3
4
ts1
Figure 69:
t
H
Signal diagram of timing relay, on- and off-delayed 3
• Range H: The Reset signal interrupts the timing out of the set time.
160
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EZ500_700.book Page 161 Tuesday, May 3, 2005 5:15 PM
Timing relays
Timing relay, single pulse
1
2
3
4
ts
ts
B
A
Figure 70:
t1 + t2 = ts
C
Signal diagram of timing relay, single pulse 1
1: trigger coil TTx
2: Stop coil HTx
3: Reset coil RTx
4: switch contact (make contact) Tx
• Range A: The trigger signal is short and is lengthened
• Range B: The Trigger signal is longer than the set time.
• Range C: The Stop coil interrupts the timing out of the set time.
1
2
3
4
t
t
D
Figure 71:
ts
E
Signal diagram of timing relay, single pulse 2
• Range D: The Reset coil resets the timing relay.
• Range E: The Reset coil resets the timing relay. The Trigger coil
is still activated after the Reset coil has been deactivated and the
time is still running.
MN05013003E
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Wiring with EZ
Timing relay, flashing
You can set the mark-to-space ratio to 1:1 or ≠ 1:1.
Time value I1: Pulse time
Time value I2: Pause time
Mark-to-space ratio = 1:1 flashing: S1 equals S2
Mark-to-space ratio ≠ 1:1 flashing: S1 does not equal S2
1
2
3
4
ts1
ts2
ts1
A
Figure 72:
ts2
ts1
t
ts2
ts1
ts2
ts1
t1 +
B
t2 = ts2
ts1
ts2
C
Timing relay signal diagram, flashing
1: trigger coil TTx
2: Stop coil HTx
3: Reset coil RTx
4: switch contact (make contact) Tx
• Range A: The relay flashes for as long as the Trigger coil is
activated.
• Range B: The Stop coil interrupts the timing out of the set time.
• Range C: The Reset coil resets the relay.
162
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EZ500_700.book Page 163 Tuesday, May 3, 2005 5:15 PM
Timing relays
Timing relay examples
Example: timing relay, on-delayed
In this example a conveyor starts 10 s after the system is
powered up.
Circuit diagram display
I5-------TT1
T1-------ÄQ1
Parameter settings of timing
relay T1
T1 X
I1
I2
S
10.000
+
Example: timing relay, off-delayed
The off-delayed function is used to implement a rundown time
on the conveyor if required.
Circuit diagram display
I6-------TT2
T2-------ÄQ2
Parameter settings of timing
relay T2
T2 â
I1
I2
S
30.000
+
Example: timing relay, on- and off-delayed
The on/off-delayed function is used to implement the delay of
both the startup and the shutdown if required.
Circuit diagram display
I6-------TT3
T3-------ÄQ3
MN05013003E
Parameter settings of timing
relay T3
T3 Xâ
I1
I2
S
10.000
+
30.000
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Wiring with EZ
Example: timing relay, single pulse
The input pulses present may vary in length. These pulses
must be normalized to the same length. The Single pulse
function can be used very simply to implement this.
Circuit diagram display
I7-------TT4
T4-------ÄQ4
Parameter settings of timing
relay T4
T4 ü
I1
I2
S
10.000
+
Example: timing relay, flashing
This example shows a continuous flash pulse function.
Outputs Q3 or Q4 flash according to the marker states of M8
or M9.
Circuit diagram display
---------TT5
T5uM8----ÄQ3
hM9----ÄQ4
Parameter settings of timing
relay T5
T5 Ü
I1
I2
S
02.000
+
01.000
Example: on-delayed timing relay with retentive actual
value
Select a retentive timing relay if you wish to retain the actual
value of a timing relay, even after a power failure or a change
from RUN to STOP.
164
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EZ500_700.book Page 165 Tuesday, May 3, 2005 5:15 PM
Timing relays
M 9 - M12 åÆ
M13 - M16
N 9 - N16
C 5 - C 7
C 8
C13 - C16
T 7
T 8
T13 - T16
D 1 - D 8
æ
å
å
XSelect the required timing relay in the SYSTEM…J
RETENTION… menu.
The example shows the timing relays T7, T8 as retentive
timing relays. Markers M9 to M12 were also selected as
retentive.
Circuit diagram display
Parameter settings of timing
relay T8
M9-------TT8
T8 X
T8-------ÄQ1
I1
I2
M:S +
15:00
1
2
3
t1
Figure 73:
+
t2
= ts
Function the circuit
1: power supply
2: status of marker M9 and thus trigger signal T8
3: status of make contact T8
MN05013003E
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165
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Wiring with EZ
Jumps
Jumps can be used to optimize the structure of a circuit
diagram or to implement the function of a selector switch.
Jumps can be used for example to select whether manual/
automatic operation or other machine programs are to be set.
I2-------Ä:1
---------Ä:2
:1
T1-------ÄQ3
You integrate :1 jumps into your circuit in the form of a
contact and coil. Jumps consist of a jump location and a jump
label.
Contact
Coil
:1 to :8
(can only be used as
first leftmost contact)
Ä:1
to Ä:8
Function
If the jump coil is triggered, the rungs after the jump coil are
no longer processed. The states of the coils before the jump
will be retained, unless they are overwritten in rungs that were
not missed by the jump. Jumps are always made forwards, i.e.
the jump ends on the first contact with the same number as
that of the coil.
• Coil = jump when 1
• Contact only at the first leftmost contact = Jump label
The Jump label contact point is always set to “1”.
J
Backward jumps are not possible with EZ due to the way it
operates.
If the jump label does not come after the jump coil, the jump
will be made to the end of the circuit diagram. The last rung
will also be skipped.
Multiple use of the same jump coil and jump contact is
possible as long as this is implemented in pairs, i.e.:
Coil Ä:1/jumped section/Contact:1, Coil Ä:1/jumped
section/Contact:1 etc.
166
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EZ500_700.book Page 167 Tuesday, May 3, 2005 5:15 PM
Jumps
Attention!
The states of jumped rungs are retained. The time value of
timing relays that have been started will continue to run.
Power flow display
Jumped sections are indicated by the coils in the power flow
display.
All coils after the jump coil are shown with the symbol : of the
jump coil.
Example
A selector switch allows two different sequences to be set.
• Sequence 1: Switch on Motor 1 immediately.
• Sequence 2: Switch on Guard 2, Wait time, then switch
on Motor 1.
Contacts and relays used:
•
•
•
•
•
•
•
•
MN05013003E
I1 sequence 1
I2 sequence 2
I3 guard 2 moved out
I12 motor-protective circuit-breaker switched on
Q1 motor 1
Q2 guard 2
T1 wait time 30.00 s, on-delayed
D1 text “Motor-protective circuit-breaker tripped”
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167
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Wiring with EZ
Circuit diagram:
Power flow display: I1 selected:
I1-------Ä:1
I1-------Ä:1
:1
:1
I2-------Ä:2
--------uÄQ1
hRQ2
---------Ä:8
:2-------ÄQ2
Q2-I3----TT2
T2-------ÄQ1
:8
i12-------ÄD1
168
I2------- :
--------uÄQ1
hRQ2
---------Ä:8
:2------- :
Q2-I3---- :
T2------- :
:8
i12-------ÄD1
Section from jump label 1 processed.
Jump to label 8.
Section to jump label 8 skipped.
Jump label 8, circuit diagram processed from
this point on.
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MN05013003E
EZ500_700.book Page 169 Tuesday, May 3, 2005 5:15 PM
Year time switch
Year time switch
EZ500 and EZ700 devices with the type designation
EZ...-..-.C. are equipped with an integrated real-time clock
that you can use as a 7-day time switch and year time switch.
If you have to implement special on and off switching
functions on public holidays, vacations, company holidays,
school holidays and special events, these can be
implemented easily with the year time switch.
J
The procedure for setting the time is described under
section “Setting date, time and daylight saving time”,
page 209.
EZ offers eight year time switches Y1 to Y8 for up to 32 switch
times.
Each time switch has four channels which you can use to set
four different on and off times. The channels are set via the
parameter display.
The time and date are backed up in the event of a power
supply failure and continue to run. This means that it will
continue to run in the event of a power failure, although the
time switch relays will not switch. When EZ is in a deenergized state, the timer contacts remain open. Refer to
section “Technical Data”, page 260 for information on the
buffer time.
J
The clock module integrated in EZ works within the date
range 01.01.2000 to 31.12.2099.
Wiring of a year time switch
Y1u------ÄQ1
A year time switch can be integrated into your circuit in the
form of a contact.
Ö1-Y3----ÄQ2
The coils and contacts have the following meanings:
Y2k
Contact
Y1
MN05013003E
to Y8
Coil
Contact of the year time
switch
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169
EZ500_700.book Page 170 Tuesday, May 3, 2005 5:15 PM
Wiring with EZ
Y1 A
ON
+
--.--.--
OFF --.--.--
Parameter display and parameter set for the year time
switch:
Y1
Year time switch function relay 1
A,B,
C,D
Time switch channels
+
•
•
ON
On date: day, month, year (two-digit 2004 = 04)
OFF
Off date: day, month, year (two-digit 2004 = 04)
+
-
appears in the PARAMETER menu.
does not appear in the PARAMETER menu.
The parameter display for a year time switch is used to modify
the on time, the off time and the enable of the parameter
display.
Table 13:
On and off times
Parameters
Meaning
Meaningful values
xx.--.00
Date, day
01 to 31
--.xx.00
Month
01 to 12
--.--.00
Year, two-digit
00 to 99
Parameter display in RUN mode:
Y1
ON
A
+
01.01.04
OFF 31.12.04
â
170
Selected channel
On time
Off time
# Contact has not switched.
â Contact has switched.
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MN05013003E
EZ500_700.book Page 171 Tuesday, May 3, 2005 5:15 PM
Year time switch
Changing time switch channel
You can change time switch channel in either RUN or STOP
mode by selecting the channel required with the cursor
buttons ÍÚ.
Y4 A
ON
+
01.01.04
OFF 31.03.04
Example:
The display on the left shows the parameter display of a year
time switch. The cursor is flashing on channel A.
â
Y4 B
ON
+
01.10.04
OFF 31.12.04
XPress the Í button to move the cursor to channel B.
Press the í button to reach any value that can be edited.
#
J
Important input rules.
The year time switch only operates properly by observing
the following rules.
The on year must not be later than the off year.
ON and OFF times must have the same parameters.
Example: ON = Year, OFF = Year; ON = Year/Month, OFF
= Year/Month
Entry rules
The following nine entry rules are possible.
Display format: XX = digit used
Y1
ON
A
+
XX.--.--
OFF XX.--.--
MN05013003E
Rule 1
ON: Day
OFF: Day
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171
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Wiring with EZ
Y1
ON
A
+
--.XX.--
Rule 2
ON: Month
OFF --.XX.--
OFF: Month
Y1
Rule 3
ON: Year
ON
A
+
--.--.XX
OFF --.--.XX
OFF: Year
Y1
Rule 4
ON: Day/month
ON
A
+
XX.XX.--
OFF XX.XX.--
OFF: Day/month
Y1
Rule 5
ON: Month/year
ON
A
+
--.XX.XX
OFF --.XX.XX
OFF: Month/year
Y1
Rule 6
ON: Day/month/year
ON
A
+
XX.XX.XX
OFF XX.XX.XX
OFF: Day/month/year
Y1
Rule 7
Two-channel
ON
A
+
XX.XX.--
OFF --.--.--
Y1
ON
B
+
Channel A ON: Day/month
Channel B OFF: Day/month
--.--.--
OFF XX.XX.--
172
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EZ500_700.book Page 173 Tuesday, May 3, 2005 5:15 PM
Year time switch
Y1
ON
B
+
XX.XX.XX
OFF --.--.XX
Y1
ON
D
+
--.--.XX
OFF XX.XX.XX
Rule 8
Two-channel
Channel ON: Day/month/year
Channel D OFF: Day/month/year
With this rule, the same year number must be entered in each
channel in the ON and OFF entry area.
Rule 9
Overlapping channels:
The first ON date switches on and the first OFF date switches
off.
Function of the year time switch
The year time switch can switch ranges, individual days,
months, years or combinations of all three.
Years
ON: 2002 to OFF: 2010 means:
Switch on at 00:00 on 01.01.2002 and switch off at 00:00 on
01.01.2011.
Months
ON: 04 to OFF: 10 means:
Switch on at 00:00 on 1 April and switch off at 00:00 on 1
November
Days
ON: 02 to OFF: 25 means:
Switch on at 00:00 on day 2 and switch off at 00:00 day 26
J
MN05013003E
Avoid incomplete entries. It hinders transparency and leads
to unwanted functions.
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173
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Wiring with EZ
Example : Selecting year range
The year time switch Y1 is required to switch on at 00:00 on 1
January 2004 and switch off at 23:59 on 31 December 2005.
Circuit diagram display
Y1-------ÄQ1
Parameter settings for the
year time switch Y1
Y1
ON
A
+
--.--.04
OFF --.--.05
Example: Selecting month ranges
The year time switch Y2 is required to switch on at 00:00 on 1
March and switch off at 23:59 on 30 September.
Circuit diagram display
Y2-------ÄQ1
Parameter settings for the
year time switch Y2
Y2
ON
A
+
__.03.--
OFF --.09.--
Example :Selecting day ranges
The year time switch Y3 is required to switch on at 00:00 on
day 1 of each month and switch off at 23:59 on day 28 of each
month.
Circuit diagram display
Y3-------ÄQ1
Parameter settings for the
year time switch Y3
Y3
ON
A
+
01.--.--
OFF 28.--.--
174
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EZ500_700.book Page 175 Tuesday, May 3, 2005 5:15 PM
Year time switch
Example : Selecting public holidays
The year time switch Y4 is required to switch on at 00:00 on
day 25.12 of each year and switch off at 23:59 on day 26.12
of each year. “Christmas program”
Circuit diagram display
Y4-------ÄQ1
Parameter settings for the
year time switch Y4
Y4 A
ON
+
25.12.--
OFF 26.12.--
Example: Selecting a time range
The year time switch Y1 is required to switch on at 00:00 on
day 02.05 of each year and switch off at 23:59 on day 31.10
of each year. “Open air season”
Circuit diagram display
Y1-------ÄQ1
Parameter settings for the
year time switch Y1
Y1 A
ON
+
02.05.--
OFF --.--.--
Y1
ON
B
+
--.--.--
OFF 31.10.--
Example: Overlapping ranges
The year time switch Y1 channel C switches on at 00:00 on
day 3 of months 5, 6, 7, 8, 9, 10 and remains on until 23:59 on
day 25 of these months.
The year time switch Y1 channel D switches on at 00:00 on
day 2 of the months 6, 7, 8, 9, 10, 11, 12 and remains on until
23:59 on day 17 of these months.
MN05013003E
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Wiring with EZ
Circuit diagram display
Y1-------ÄQ1
Parameter settings for the
year time switch Y1
Y1
ON
C
+
03.05.--
OFF 25.10.--
Y1
ON
D
+
02.06.--
OFF 17.12.--
Total number of channels and behavior of the contact Y1: The
time switch will switch on at 00:00 from 3 May and off at 23:59
on 25 May.
In June, July, August, September, October, the time switch
will switch on at 00:00 on day 2 of the month and switch off at
23:59 on day 17.
In November and December, the time switch will switch on at
00:00 on day 2 of the month and switch off at 23:59 on day 17.
Master reset
The master reset function relay enables you to set with one
command the status of the markers and all outputs to “0”.
Depending on the operating mode of this function relay, it is
possible to reset the outputs only, or the markers only, or both.
Three function blocks are available.
N8-------ÄZ1
Q3-------ÄZ2
I8-------ÄZ3
Z1-Z2-Z3-ÅQ2
Wiring of the master reset function relay
You integrate a master reset function relay into your circuit in
the form of a contact and coil.
The coils and contacts have the following meanings:
Contact
Z1
Coil
to Z3
Contact of the master
reset
ÄZ1
176
to ÄZ3
Coil of the master reset
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Master reset
Operating modes
The different coils of the master reset have different operating
modes
• Z1: For Q outputs: controls outputs Q1 to Q8 and S1 to S8.
• Z2: For markers M, N: controls the marker range M1 to M16
and N1 to N16.
• Z3: for outputs and markers: controls Q1 to Q8, S1 to S8,
M1 to M16 and N1 to N16.
Function of the master reset function relay
A rising edge or the 1 signal on the coil will reset the outputs
or markers to 0, depending on the operating mode set. The
location of the coil in the circuit diagram is of no importance.
The master reset always has the highest priority.
The contacts Z1 to Z3 follow the status of their own coil.
I8-------ÈZ1
I5-------ÄQ1
I2-M1-T1-SS3
M3uC1----SQ3
M4b
I8-------ÈZ2
I5-------ÄM1
I2-M1-T1-SN3
M3uC1----SM8
M4b
MN05013003E
Example: resetting outputs
All outputs that you have used can be reset to 0 with one
command.
A rising edge at the coil of Z1 will cause all Q and S outputs to
be reset.
Example: resetting markers
All markers that you have used can be reset to 0 with one
command.
A rising edge at the coil of Z2 will cause all markers M and N
to be reset.
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177
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Wiring with EZ
I8-------ÈZ3
I5-------ÄQ1
I2-M1-T1-SS3
M3uC1----SQ3
M4b
Example: resetting outputs and markers
All outputs and markers that you have used can be reset to 0
with one command.
A rising edge at the coil of Z3 will cause all Q and S outputs
and all M and N markers to be reset.
I1-------ÄM1
I7-C2-T1-SN3
T3-A1----SM8
M4-A5----SN8
Basic circuits
The values in the logic table have the following meanings
For switch contacts:
• 0 = make contact open, break contact closed
• 1 = make contact closed, break contact open
For Q…: relay coils
• 0 = coil not energized
• 1 = coil energized
Negation (contact)
Negation means that the contact opens rather than closes
when it is actuated (NOT circuit).
i1-------ÄQ1
In the EZ circuit diagram, press the ALT button to toggle
contact I1 between break and make contact.
Table 14:
178
Negation
I1
Q1
1
0
0
1
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Basic circuits
Negation (coil)
Negation means in this case that the coil opens when the
make contact is actuated (NOT circuit).
I1-------ÅQ1
In the EZ circuit diagram example, you only change the coil
function
Table 15:
Negation
I1
Q1
1
0
0
1
Maintained contact
---------ÄQ1
To energize a relay coil continuously, make a connection of all
contact fields from the coil to the leftmost position.
Table 16:
Maintained contact
---
Q1
…
1
Series circuit
I1-I2-I3-ÄQ1
Q1 is controlled by a series circuit consisting of three make
contacts (AND circuit).
i1-i2-i3-ÄQ2
Q2 is controlled by a series circuit consisting of three break
contacts (NOR circuit).
In the EZ circuit diagram, you can connect up to three make
or break contacts in series within a rung. Use M marker relays
if you need to connect more than three make contacts in
series.
MN05013003E
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Wiring with EZ
Table 17:
Series circuit
I1
I2
I3
Q1
Q2
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
1
0
0
1
1
0
0
0
1
1
1
1
0
Parallel circuit
I1u------ÄQ1
Q1 is controlled by a parallel circuit consisting of several make
contacts (OR circuit).
I3k
A parallel circuit of break contacts controls Q2 (NAND circuit).
I2s
Table 18:
i1u------ÄQ2
I1
I2
I3
Q1
Q2
i3k
0
0
0
0
1
0
0
1
1
1
0
1
0
1
1
0
1
1
1
1
1
0
0
1
1
1
0
1
1
1
1
1
0
1
1
1
1
1
1
0
i2s
180
Parallel circuit
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Basic circuits
Parallel circuit operating like a series connection of make
contacts
I1u------ÅQ1
i2s
I3s
I4s
I5k
A series circuit with more than three contacts (make contacts)
can be implemented with a parallel circuit of break contacts on
a negated coil.
In the EZ circuit diagram you can switch as many rungs in
parallel as you have rungs available.
Table 19:
MN05013003E
Parallel connection of break contacts on a negated coil
I1
I2
I3
I4
I5
Q1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
1
1
0
0
0
0
1
1
1
0
0
1
0
0
0
0
0
1
0
0
1
0
0
1
0
1
0
0
0
1
0
1
1
0
0
1
1
0
0
0
…
…
…
…
…
0
…
…
…
…
…
0
1
1
1
1
1
1
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Wiring with EZ
Parallel circuit operating like a series connection of break
contacts
I1u------ÅQ1
I2s
I3s
A series circuit with more than three contacts (break contacts)
can be implemented with a parallel connection of make
contacts on a negated coil.
In the EZ circuit diagram you can switch as many rungs in
parallel as you have rungs available.
I4s
I5k
Table 20:
Parallel connection of make contacts on a negated coil
I1
I2
I3
I4
I5
Q1
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
1
1
0
0
0
0
1
1
1
0
0
1
0
0
0
0
0
1
0
0
1
0
…
…
…
…
…
0
…
…
…
…
…
0
1
1
1
1
1
0
Two-way circuit
I1-i2u---ÄQ1
i1-I2k
182
A two-way circuit is made in EZ using two series connections
that are combined to form a parallel circuit (XOR).
An XOR circuit stands for an “Exclusive Or” circuit. The coil is
only energized if one contact is activated.
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Basic circuits
Table 21:
Two-way circuit (XOR)
I1
I2
Q1
0
0
0
0
1
1
1
0
1
1
1
0
Self-latching
I1uI2----ÄQ1
Q1k
S1 make contact at I1
S2 break contact at I2
A combination of a series and parallel connection is used to
wire a latching circuit.
Latching is established by contact Q1 which is connected in
parallel to I1. If I1 is actuated and reopened, the current flows
via contact Q1 until I2 is actuated.
Table 22:
Self-latching
I1
I2
Contact Q1
Coil Q1
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
1
0
0
1
1
1
1
0
1
0
1
1
1
1
Latching circuits are used to switch machines on and off. The
machine is switched on at the input terminals via make
contact S1 and is switched off via break contact S2.
MN05013003E
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Wiring with EZ
S2 breaks the connection to the control voltage in order to
switch off the machine. This ensures that the machine can be
switched off, even in the event of a wire break. I2 is always
closed when not actuated.
I1-------SQ1
i2-------RQ1
S1 make contact at I1
S2 break contact at I2
A self-latching circuit with wire break monitoring can
alternatively be wired using the Set and Reset coil functions.
If I1 is activated, coil Q1 latches. I2 executes the break contact
signal from S2 and does not switch until S2 is actuated. In this
way, the machine is switched off if or when a wire breaks.
Make sure that both coils are wired up in the correct order in
the EZ circuit diagram: first wire the S coil and then the R coil.
This will ensure that the machine will be switched off when I2
is actuated, even if I1 is switched on.
Impulse relay
I1-------äQ1
An impulse relay is often used for controlling lighting such as
for stairwell lighting.
Table 23:
Impulse relay
I1
Status of Q1
Q1
0
0
0
0
1
1
1
0
1
1
1
0
S1 make contact at I1
Cycle pulse on rising edge
I1-------ÈQ1
You can create a cycle pulse on a rising edge if you use the
appropriate coil function.
This is very useful for count pulses, jump pulses.
S1 make contact at I1
184
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Basic circuits
Table 24:
Cycle pulse on rising edge
I1
Status of Q1
cycle n
Status of Q1
cycle n + 1
0
0
0
1
1
0
0
0
0
Cycle pulse on falling edge
I1-------èQ1
You can create a cycle pulse on a falling edge if you use the
appropriate coil function.
This is very useful for count pulses, jump pulses.
S1 make contact at I1
MN05013003E
Table 25:
Cycle pulse on falling edge
I1
Status of Q1
cycle n
Status of Q1
cycle n + 1
1
0
0
0
1
0
1
0
0
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Wiring with EZ
Example circuits
Star-delta starting
You can implement two star-delta circuits with EZ. The
advantage of EZ is that you can select any changeover time
between star and delta contactors and any wait time between
switching off the star contactor and switching on the delta
contactor.
L
S1
S2
K1M
K3M
K1M
K1T
K1M
K1T
K5M
K3M
K3M
K5M
N
Figure 74:
186
Star-delta circuit with conventional contactors
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Example circuits
L
N
S1
K1M
S2
I1
L N
Q2
Q1
1
K1M
2
K3M
1
2
K5M
N
Figure 75:
MN05013003E
Star-delta circuit with EZ
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Wiring with EZ
I1u------TT1
dt1----ÄQ1
dT1----TT2
hT2----ÄQ2
Function of the EZ circuit diagram:
Start/stop of the circuit with the external pushbutton actuators
S1 and S2. The mains contactor starts the timing relay in EZ.
•
•
•
•
•
I1: Mains contactor switched on
Q1: Star contactor ON
Q2: Delta contactor ON
T1: Star-delta changeover time (10 to 30 s, X)
T2: Wait time between star off, delta on (30, 40, 50, 60
ms, X)
If your EZ has an integral time switch, you can combine stardelta starting with the time switch function. In this case, use
EZ to switch the mains contactor as well.
4x shift register
You can use a shift register for storing an item of information,
such as for the sorting of parts into good and bad, for two,
three or four transport steps further on.
A shift pulse and the value (0 or 1) to be shifted are needed
for the shift register.
The shift register's Reset input is used to clear any values that
are no longer needed. The values in the shift register go
through the register in the order: 1st, 2nd, 3rd, 4th storage
location.
PULSE VALUE RESET
1 2 3 4
Storage positions
Figure 76:
188
Block diagram of the 4x shift register
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Example circuits
Table 26:
Pulse
Shift register
Value
Storage position
1
2
3
4
1
1
1
0
0
0
2
0
0
1
0
0
3
0
0
0
1
0
4
1
1
0
0
1
5
0
0
1
0
0
0
0
0
0
Reset = 1
Assign the information “bad” to value 0. If the shift register is
cleared accidentally, no bad parts are used further.
•
•
•
•
•
•
•
•
•
MN05013003E
I1: Shift pulse (PULSE)
I2: Information (good/bad) to be shifted (VALUE)
I3: Clear content of the shift register (RESET)
M1: 1st storage location
M2: 2nd storage location
M3: 3rd storage location
M4: 4th storage location
M7: Marker relay for cycle pulse
M8: Cyclical pulse for shift pulse
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Wiring with EZ
I1um7----ÄM8
Generate shift pulse
M8uM3----SM4
Set 4th storage location
Clear 4th storage location
Set 3rd storage location
Clear 3rd storage location
Set 2nd storage location
Clear 2nd storage location
Set 1st storage location
Clear 1st storage location
Clear all storage locations
h------ÄM7
dm3----RM4
dM2----SM3
dm2----RM3
dM1----SM2
dm1----RM2
dI2----SM1
hi2----RM1
I3------uRM1
dRM2
dRM3
hRM4
Figure 77:
EZ circuit diagram shift register
How does the shift register work?
The shift pulse is activated for exactly one cycle. To do this,
the shift pulse is generated by evaluating the change from I1
OFF to I1 ON – the rising edge.
In this way, therefore, the cyclical processing of EZ is used to
trigger the shift pulse.
When I1 is activated for the first time, the marker relay break
contact M7 is closed during the first pass through the cycle.
Thus, the series circuit consisting of I1, break contact M7
(closed) and M8 is activated. Although M7 is now also
activated, this does not yet have any effect on contact M7.
The contact of M8 (make contact) was still open during the
first cycle so a shift pulse cannot yet be generated. When the
relay coil M8 is activated, EZ transfers the result to the
contacts.
190
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Example circuits
In the second cycle break contact M7 is open. The series
circuit is opened. The contact M8 is activated from the result
of the first cycle. Now, all the storage locations are either set
or reset in accordance with the series circuit.
If the relay coils were activated, EZ transfers the result to the
contacts. M8 is now open again. No new pulse can be formed
until I1 has opened, since M7 is open for as long as I1 is
closed.
How does the value reach the shift register?
When shift pulse M8 = ON, the state of I2 (VALUE) is
transferred to storage location M1.
If I2 is activated, M1 is set. If I2 is deactivated, M1 is
deactivated via break contact I2.
How is the result shifted?
EZ activates the coils in accordance with the rung and its
result, from top to bottom. M4 assumes the value of M3 (value
0 or 1) before M3 assumes the value of M2. M3 assumes the
value of M2, M2 the value of M1 and M1 the value of I2.
Why are the values not constantly overwritten?
In this example, the coils are controlled only by the S and R
functions, i.e. the values are retained in on or off states even
though the coil is not constantly activated. The state of the coil
changes only if the rung up to the coil is activated. In this
circuit, the marker relay is therefore either set or reset. The
rungs of the coils (storage locations) are only activated via M8
for one cycle. The result of activating the coils is stored in EZ
until a new pulse changes the state of the coils.
MN05013003E
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Wiring with EZ
How are all the storage locations cleared?
When I3 is activated, all the R coils of storage locations M1 to
M4 are reset, i.e. the coils are deactivated. Since the reset
was entered at the end of the circuit diagram, the reset
function has priority over the set function.
How can the value of a storage location be transferred?
Use the make or break contact of storage locations M1 to M4
and wire them to an output relay or in the circuit diagram
according to the task required.
Running light
An automatic running light can be created by slightly
modifying the shift register circuit.
One relay is always switched on. It starts at Q1, runs through
to Q4 and then starts again at Q1.
The marker relays for storage locations M1 to M4 are replaced
by relays Q1 to Q4.
T1 Ü
I1
I2
S
00.500
00.500
+
The shift pulse I1 has been automated by the flasher relay T1.
The cycle pulse M8 remains as it is.
On the first pass, the value is switched on once by break
contact M9. If Q1 is set, M9 is switched on. Once Q4 (the last
storage location) has been switched on, the value is passed
back to Q1.
Try changing the times.
192
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Example circuits
---------TT1
T1um7----ÄM8
h------ÄM7
Q1-------SM9
M8uQ3----SQ4
dQ4----RQ4
dQ2----SQ3
dQ3----RQ3
dQ1----SQ2
dQ2----RQ2
dQ4u---SQ1
dm9k
hQ1----RQ1
Figure 78:
MN05013003E
Flasher relay
Generate shift pulse
Clear first value
Set 4th storage location
Clear 4th storage location
Set 3rd storage location
Clear 3rd storage location
Set 2nd storage location
Clear 2nd storage location
Set 1st storage location
Enter first value (=1)
Clear 1st storage location
EZ run light circuit diagram
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193
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Wiring with EZ
Stairwell lighting
For a conventional circuit you would need at least five space
units in the distribution board, i.e. one impulse relay, two
timing relays and two auxiliary relays.
EZ requires only four space units. A fully functioning stairwell
lighting system can be set up with five terminals and the EZ
circuit diagram.
S1
S2
H1
H2
S3
H3
L
N
K3T
K1
K2T
Figure 79:
J
194
K4
K3T
5s
K4
K2T
K5
K1
K5
K5
K5
6 min
Conventional stairwell lighting
Up to twelve such stairwell circuits can be implemented with
one EZ device.
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EZ500_700.book Page 195 Tuesday, May 3, 2005 5:15 PM
Example circuits
S1
S2
H1
H2
S3
H3
L
N
L N
I1
Q1
1
Figure 80:
2
Stairwell lighting with EZ
Button pressed briefly
Light ON or OFF. The impulse relay
function will even switch off Continuous
lighting.
Light off after 6 min. with Continuous
lighting this function is not active.
Button pressed for
more than 5 s
MN05013003E
Continuous lighting
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Wiring with EZ
The EZ circuit diagram for the The enhanced EZ circuit diagram:
functions described above looks after four hours, the continuous
like this:
lighting is also switched off.
I1-------TT2
I1------uTT1
I1u------äQ1
T2-------SM1
Q1-m1----TT3
T3s
T2-------SM1
T3k
q1-------RM1
hTT2
T1u------äQ1
T4k
Q1um1----TT3
h------TT4
q1-------RM1
Figure 81:
EZ circuit diagram stairwell lighting
Meaning of the contacts and relays used:
• I1: ON/OFF pushbutton
• Q1: Output relay for light ON/OFF
• M1: Marker relay. This is used to block the “switch off
automatically after 6 minutes” function for continuous
lighting.
• T1 Cycle pulse for switching Q1 on and off, ( ü, single-pulse
with value 00.00 s)
• T2 Scan to determine how long the button was pressed. If
pressed longer than 5 s, continuous lighting is switched on
(X, on-delayed, value 5 s).
• T3 switch off after a lighting time of 6 min. (X, on-delayed,
value 6:00 min.).
• T4 Switch off after 4 hours continuous lighting (X, ondelayed, value 4:00 h).
If you are using an EZ with a time switch, you can define both
the stairwell lighting and the continuous lighting periods via
the time switch.
196
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EZ500_700.book Page 197 Tuesday, May 3, 2005 5:15 PM
Example circuits
If you use an EZ with analog inputs, you can optimize the
stairwell lighting with a brightness sensor to suit the lighting
conditions.
MN05013003E
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EZ500_700.book Page 199 Tuesday, May 3, 2005 5:15 PM
5
EZ Settings
Settings can only be carried out on EZ models provided with
buttons and LCD display.
EZSoft can be used to set all models via the software.
Password protection
The EZ can be protected by a password against unauthorized
access.
In this case the password consists of a value between 0001
and 9999. The number combination 0000 is used to delete a
password.
J
Factory setting:
0000, no password present and none active, circuit diagram
area selected.
Password protection inhibits access to selected areas. The
System menu is always protected when a password is
activated.
The password can protect the following entries and areas:
•
•
•
•
•
•
•
•
MN05013003E
Start or modification of the program
Transfer of a circuit diagram from and to the memory card
Change of the RUN or STOP mode.
Calling and modification of function block parameters
All settings of the real-time clock.
Modifications of all system parameters.
Communication with the individual device.
Switching off the password delete function.
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EZ Settings
J
A password that has been entered in EZ is transferred to
the memory card together with the circuit diagram,
irrespective of whether it was activated or not.
If this EZ circuit diagram is loaded back from the memory
card, the password will also be transferred to EZ and is
activated immediately.
Password setup
A password can be set up via the System menu in either RUN
or STOP mode. You cannot change to the System menu if a
password is already activated.
XPress DEL and ALT to call up the System menu.
XSelect the menu option SECURITY… to enter the
password.
XPress the OK button and move to the PASSWORD…
menu.
XIf you press the OK button again, you will access the
password entry area.
ENTER PASSW
âXXX
ENTER PASSW
0042
If no password has been entered, EZ changes directly to the
password display and displays for XXXX characters: No
password present.
XPress OK, four zeros will appear
XSet the password using the cursor buttons:
– ú í select position in the password,
– ÍÚ set a value between 0 to 9.
XSave the new password by pressing OK.
Use OK to exit the password display and proceed with ESC
and Ú to the RANGE… menu.
The scope of the password has not yet been defined. The
password is now valid but not yet activated.
200
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EZ500_700.book Page 201 Tuesday, May 3, 2005 5:15 PM
Password protection
Selecting the scope of the password
CIRC.DIAG.åÆ
PARAMETER
CLOCK
OPRTNG MODEæ
XPress the OK button.
XSelect the function or the menu to be protected.
XPress the OK button in order to protect the function or menu
(tick = protected).
INTERFACE
DELETE FUNCT
J
Standard protection encompasses the programs and circuit
diagram.
At least one function or menu must be protected.
• CIRCUIT DIAG: The password is effective on the program
with circuit diagram and non-enabled function relays.
• PARAMETER: The PARAMETER menu is protected.
• CLOCK: Date and time are protected with the password.
• OPRTNG MODE: The toggling of the RUN or STOP
operating mode is protected.
• INTERFACE: The interface is disabled for access with
EZSoft.
• DELETE FUNCT: The question DELETE PROG? will
appear on the device after four incorrect password entries
have been made. This prompt is not displayed if selected.
However, it is no longer possible to make changes in
protected areas if you forget the password.
MN05013003E
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EZ Settings
Activating the password
You can activate a valid password in three different ways:
• automatically when EZ is switched on again
• automatically after a protected circuit diagram is loaded
• via the password menu
XPress DEL and ALT to call up the System menu.
XOpen the password menu via the SECURITY… menu
EZ will only show this menu if a password is present.
CHANGE PW
ACTIVATE
J
Make a note of the password before you activate it. If the
password is no longer known, EZ can be unlocked
(DELETE FUNCT is not active), but the circuit diagram and
data settings are lost. The interface must not be disabled.
Attention!
If the password is unknown or lost, and the password delete
function is not activated: The unit can only be reset to the
factory setting by the manufacturer. The program and all
data are lost.
XSelect ACTIVATE PW and press OK.
The password is now active. EZ changes back automatically
to the Status display.
You must unlock EZ with the password before you carry out a
protected function, enter a protected menu or the System
menu.
202
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Password protection
Unlocking EZ
Unlocking EZ will deactivate the password. You can reactivate
password protection later via the Password menu or by
switching the power supply off and on again.
PASSWORD...
STOP
RUN å
XPress OK to switch to the main menu.
The PASSWORD… entry will flash.
XPress OK to enter the password entry menu.
PASSWORD...
INFO
J
ENTER PASSW
XXXX
If EZ shows PROGRAM… in the main menu instead of
PASSWORD…, this means that there is no password
protection active.
EZ will display the password entry field.
XSet the password using the cursor buttons:
XConfirm with OK.
If the password is correct, EZ will switch automatically to the
Status display.
PROGRAM...
The PROGRAM… menu option is now accessible so that you
can edit your circuit diagram.
PARAMETER
The System menu is also accessible.
STOP
INFO
MN05013003E
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EZ Settings
Changing or deleting the password range
XUnlock EZ.
XPress DEL and ALT to call up the System menu.
XOpen the password menu via the menu option SECURITY
JPASSWORD…
The CHANGE PW entry will flash.
CHANGE PW
ACTIVATE PW
ENTER PASSW
XXXX
ENTER PASSW
1789
EZ will only show this menu if a password is present.
XPress OK to enter the password entry menu.
XPress OK to move to the 4-digit entry field.
XFour zeros will be displayed
XModify the four password digits using the cursor buttons.
XConfirm with OK.
Press ESC to exit the security area.
ENTER PASSW
0000
Deleting
Use number combination 0000 to delete a password.
If a password has not been entered already, EZ will show four
XXXX.
Password incorrect or no longer known
If you no longer know the exact password, you can try to reenter the password several times.
J
ENTER PASSW
XXXX
204
The DELETE FUNCT function has not been deactivated.
Have you entered an incorrect password?
XRe-enter the password.
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MN05013003E
EZ500_700.book Page 205 Tuesday, May 3, 2005 5:15 PM
Changing the menu language
After the fourth entry attempt EZ will ask whether you wish to
delete the circuit diagram and data.
DELETE ?
XPress
– ESC: Circuit diagram, data or password are not deleted.
– OK: Circuit diagram, data and password are deleted.
EZ will return to the Status display.
J
If you no longer know the exact password, you can press
OK to unlock the protected EZ. The saved circuit diagram
and all function relay parameters will be lost.
Pressing ESC will retain the circuit diagram and data. You can
then make another four attempts to enter the password.
Changing the menu
language
MN05013003E
EZ500 and EZ700 provide twelve menu languages which are
set as required via the System menu.
Language
LCD display
English
ENGLISH
German
DEUTSCH
French
FRANCAIS
Spanish
ESPANOL
Italian
ITALIANO
Portuguese
PORTUGUES
Dutch
NEDERLANDS
Swedish
SVENSKA
Polish
POLSKI
Turkish
TURKCE
Czech
CESKY
Hungarian
MAGYAR
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205
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EZ Settings
J
Language selection is only possible if EZ is not passwordprotected.
XPress DEL and ALT to call up the System menu.
XSelect LANGUAGE… to change the menu language.
ENGLISH
DEUTSCH
FRANCAIS
å
ESPANOL
ITALIANO
Æ
The language selection for the first entry ENGLISH is
displayed.
æ
XUse Í or Ú to select the new menu language, e.g. Italian
(ITALIANO).
XConfirm with OK. ITALIANO is assigned a tick.
XExit the menu with ESC.
PORTUGUES
NEDERLANDS
SVENSKA
POLSKI
TURKCE
CESKY
MAGYAR
EZ will now show the new menu language.
SICUREZZA
SISTEMA...
Press ESC to return to the Status display.
LINGUA MENU
CONFIGURA...
Changing parameters
EZ allows you to change function relay parameters such as
timing relay setpoint values and counter setpoints without
having to call up the circuit diagram. This is possible
regardless of whether EZ is running a program or is in STOP
mode.
XPress OK to switch to the main menu.
XStart the parameter display by selecting PARAMETER.
206
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Changing parameters
T3 Ü
T8 X
C4 N
S
+
M:S +
The following preconditions must be fulfilled in order for a
parameter set to be displayed:
+
• A function relay must have been included in the circuit
diagram.
• The PARAMETER menu must be available.
• The parameter set must have been enabled for access,
indicated by the + character at the bottom right of the
display.
+
O3
Ö2
+
A3 LT
+
A1 EQ
+
J
T3 Ü
I1
I2
T:
All function relays are displayed as a list.
S
02.030
05.000
+
You can enable or disable parameter access using the “+”
or “–” parameter set characters respectively in the circuit
diagram.
XSelect the required function block with Í or Ú .
XPress the OK button.
XUse the cursor buttons Í or Ú to select the parameter
required.
XChange the values for a parameter set:
– Press OK to enter the Entry mode.
– Press ú í to change decimal place
– Press ÍÚ to change the value of a decimal place
– Press OK to save constants or
– Press ESC to retain previous setting.
Press ESC to leave the parameter display.
Adjustable parameters for function relays
You can also modify the function relay parameters used in the
circuit diagram in the PARAMETER menu.
Adjustable setpoint values are:
• With all function relays the setpoints
• On and off times with time switches.
MN05013003E
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EZ Settings
In RUN mode EZ operates with a new setpoint as soon as it
has been modified in the parameter display and saved with
OK.
Example: Changing switch times for outdoor lighting
The outdoor lighting of a building is automatically switched on
from 19:00 to 23:30 Mondays to Fridays in the EZ circuit
diagram.
Ö1 A 15:21 +
The parameter set for the time switch function relay 1 is saved
in channel A and looks like this.
ON
From the following weekend, the outdoor lighting is now also
required to switch on between 19:00 and 22:00 on Saturdays.
D
MO-FR
OFF
23:30
19:00
XSelect PARAMETER from the main menu.
The first parameter set is displayed.
Ö1 B 15:21 +
XUse Í or Ú to scroll through the parameter sets until
channel A of time switch 1 is displayed.
XPress Í to select the next empty parameter set, in this
case channel B of time switch 1.
ON
The current time is 15:21.
D
--
OFF
00:00
00:00
Ö1 B 15:21 +
D
SA
OFF
00:00
ON
00:00
Ö1 B 15:21 +
D
SA
OFF
00:00
ON
208
19:00
XChange the value for the day interval from MO to SA:
– ú í Move between the parameters
– ÍÚ Change value.
XPress OK to acknowledge the value SA.
XChange the ON value to 19:00.
XMove to the value of ON
XPress OK.
– ú í Move between the parameters
– ÍÚ Change value.
XPress OK to acknowledge the value 19:00.
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EZ500_700.book Page 209 Tuesday, May 3, 2005 5:15 PM
Setting date, time and daylight saving
Ö1 B 15:21 +
D
SA
OFF
22:00
ON
19:00
XSet the switching off time to 22:00.
XPress OK.
EZ will save the new parameters. The cursor will remain in the
contact field on channel identifier B.
Press ESC to leave the parameter display.
The time switch will now also switch on at 19:00 on Saturdays
and switch off at 22:00.
Setting date, time and
daylight saving time
The EZ500 and EZ700 devices are equipped with a real-time
clock with date and time functions. The type reference is
EZ…-..-.C. The time switch function relays can thus be used
to implement time switch applications.
J
Factory setting:
SA 0:01 01.05.2004
Setting the time
If the clock has not yet been set or if the device is switched on
after the buffer time has elapsed, the clock starts with the
setting “SA 0:01 01.05.2004”. The EZ clock operates with
date and time so the hour, minute, day, month and year must
all be set.
XSelect SET CLOCK… from the main menu.
SET CLOCK
This will open the menu for setting the time.
SUMMER TIME
MN05013003E
XSelect SET CLOCK and confirm with OK.
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EZ Settings
HH:MM: 18:24
DD.MM: 01.05
YEAR : 2004
XSet the values for time, day, month and year.
XPress the OK button to access the Entry mode.
– ú í Move between the parameters
– ÍÚ Change the value of a parameter
– OK Save day and time
– ESC Retain previous setting.
Press ESC to leave the time setting display.
Setting summer time start and end
Most EZ models are fitted with a real-time clock. The clock has
various possibilities for starting and ending the summer time
(DST) setting. These are subject to different legal
requirements in the EU, GB and USA.
J
Factory setting:
No automatic DST setting present
You can make the following settings:
• NONE: no DST setting rule.
• RULE: a user-defined date for the DST change
• EU: date defined by the European Union; Start: last Sunday
in March; End: last Sunday in October:
• GB: date defined in Great Britain; Start: last Sunday in
March; End: fourth Sunday in October.
• US: date defined in the United States of America: Start: first
Sunday in April; End: last Sunday in October.
The following applies to all legally stipulated DST settings:
Summer time start: On the day of time change, the clock
moves forward one hour at 2:00 to 3:00.
Summer time end: On the day of time change, the clock
moves back one hour at 3:00 to 2:00.
Select SET CLOCK… from the main menu.
210
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Setting date, time and daylight saving
This will open the menu for setting the time.
SET CLOCK
XSelect the SUMMER TIME menu option.
SUMMER TIME
Setting summer time start and end
EZ shows you the options for the DST change.
The standard setting is NONE for automatic DST changeover
(Tick at NONE).
J
NONE
RULE...
EU
åÆ
GB
æ
NONE
Æ
US
RULE...
EU
GB
US
å
æ
The start and end of summer time can only be set in STOP
mode.
XSelect the required DST version and press the OK button.
The rule for the European Union (EU) has been selected.
Summer time start and end, setting the rule
If you wish to enter your own date, it is important to know what
settings are possible.
The start and end of summer time is a complex calculation
procedure throughout the world. For this reason, the standard
rules for the EU, US, GB are provided in EZ.
MN05013003E
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EZ Settings
The following rules normally apply:
Table 27:
DST setting rule
When
Weekday
ON
WD
How
Date
--
J table 28
Rule 1: change on a special date
--
--
Rule 2: change on a defined day in the month
•
•
•
•
•
1st (first)
2nd (second)
3rd (third)
4th (fourth)
L. (last)
•
•
•
•
•
•
•
SU (Sunday)
MO (Monday)
TU (Tuesday)
WE (Wednesday)
TH (Thursday)
FR (Friday)
SA (Saturday)
MONTH
J table 281)
Rule 3: change on a defined day after or before a date
1st (first)
•
•
•
•
•
•
•
SU (Sunday)
MO (Monday)
TU (Tuesday)
WE (Wednesday)
TH (Thursday)
FR (Friday)
SA (Saturday)
• AFTER THE
• BEFORE
THE
J table 28
1) Apart from day definitions
212
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EZ500_700.book Page 213 Tuesday, May 3, 2005 5:15 PM
Setting date, time and daylight saving
Table 28:
Date parameters
Day
Month
Hour
Minute
Time
difference
DD.
MM
HH:
MM
H:M
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1st
2nd
…
31st
1 (January)
2 (February)
…
12 (December)
00
01
02
03
…
23
00
01
02
03
04
…
59
+ 3:00
+ 2:30
+ 2:00
+ 1:30
+ 1:00
+ 0:30
– 0:30
– 1:00
– 1:30
– 2:00
– 2:30
– 3:00
Example with EU (European Union)
End of summer time
Menu in EZ SUMMER END:
The following rule applies:
The clock goes back one hour (-1:00) to 2:00 at 3:00 on the
last Sunday in October.
Table 29:
When
Weekday
How
WD
ON
L. (last)
SU (Sunday)
MONTH
EU summer time end
Day
Month
Hour
Minute
Time
difference
DD.
MM
HH:
MM
H:M
--
10
(October)
03
00
- 1:00
Start of summer time
Menu in EZ SUMMER START:
The following rule applies:
The clock goes forward one hour (+1:00) to 3:00 at 2:00 on the
last Sunday in March.
MN05013003E
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EZ Settings
Table 30:
When
Weekday
How
WD
ON
L. (last)
SU (Sunday)
MONTH
EU summer time start
Day
Month
Hour
Minute
Time
difference
DD.
MM
HH:
MM
H:M
--
03
(March)
02
00
+ 1:00
The following start and times for summer time normally apply
throughout the world (as at beginning of 2004):
Table 31:
Summer time rules
Country/
Region
Summer time start
Summer time end
Start
time)
End
time2)
Brazil, Rio de
Janeiro
1st Sunday in November
1st Sunday after the 15th
February
00:00
00:00
Chile, Santiago
1st Sunday after 8th
October
1st Sunday after 8th
March
00:00
00:00
USA/Antarctic,
McMurdo
1st Sunday in October
1st Sunday after 15th
March
02:00
02:00
Chatham
Islands
1st Sunday in October
1st Sunday after 15th
March
02:45
03:45
New Zealand
1st Sunday in October
1st Sunday after 15th
March
02:00
03:00
Chile, Easter
Islands
1st Saturday after 8th
October
1st Saturday after 8th
March
22:00
22:00
USA/Antarctic,
Palmer
1st Sunday after 9th
October
1st Sunday after 9th
March
00:00
00:00
Iran3)
1st day of Favardin
30th day of Shahrivar
00:00
00:00
Jordan
Last Thursday in March
Last Thursday in
September
00:00
01:00
Israel
Special rules according to the Hebrew calendar
01:00
01:00
Last Sunday in October
02:004)
02:00
Australia,
Howe Islands
214
Last Sunday in March
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MN05013003E
EZ500_700.book Page 215 Tuesday, May 3, 2005 5:15 PM
Setting date, time and daylight saving
Country/
Region
Summer time start
Summer time end
Start
time)
End
time2)
Australia
Last Sunday in October
Last Sunday in March
02:00
03:00
Georgia
Last Sunday in March
Last Sunday in October
00:00
00:00
Azerbaijan
Last Sunday in March
Last Sunday in October
01:00
01:00
Kirgistan
Last Sunday in March
Last Sunday in October
02:30
02:30
Syria
1st April
1st October
00:00
00:00
Iraq
1st April
1st October
03:00
04:00
Pakistan
1st Sunday after the 2nd
April
1st Saturday in October
00:00
00:00
Namibia
1st Sunday in September
1st Sunday in April
02:00
02:00
Paraguay
1st Sunday in September
1st Sunday in April
02:00
00:00
Canada,
Newfoundland
1st Sunday in April
Last Sunday in October
00:01
00:01
1)
2)
3)
4)
NONE
RULE...
EU
GB
US
MN05013003E
Æ
Relevant local time to which the clock should be set forward.
Relevant local time to which the clock should be set back.
Persian calendar
Summer time = standard time + 0.5 hours
XSelect the RULE menu.
XPress the OK button.
æ
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215
EZ500_700.book Page 216 Tuesday, May 3, 2005 5:15 PM
EZ Settings
SUMMER START
SUMMER END
The two SUMMER START (start of summer time) and
SUMMER END (end of summer time) menus are shown.
SUMMER START: set the DST time for the start of summer.
SUMMER END: set the DST time for the end of summer.
J
If a standard rule has been selected, this will be accepted
as the rule.
This menu appears for entering the required time settings:
DAY
WD:
L.Æ
SU
MONTH
DD.MM:--.03æ
HH:MM:02:00
DIFF: +1:00
Rule for day, 1st, 2nd, 3rd, 4th, Lst.
Weekday
Rule 2 MONTH, AFTER, BEFORE
Date, day, month
Time, hour, minute
Time difference, summer time always + x:xx
Time difference, winter time always - x:xx
Enter summer time start.
SUMMER START
SUMMER END
XPress OK to reach Entry mode for the summer time start
rule.
The following menu appears:
DAY
WD:
L.Æ
SU
This will open the menu for setting the time.
XSet the values for DST time change.
MONTH
DD.MM:--.03æ
HH:MM:02:00
DIFF: +1:00
216
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MN05013003E
EZ500_700.book Page 217 Tuesday, May 3, 2005 5:15 PM
Setting date, time and daylight saving
XPress the OK button to access the Entry mode.
– ÍÚ Select required value.
– ú í Move between the places.
– ÍÚ Change the value of a parameter
– OK Save value.
– ESC Retain previous setting.
Press ESC to leave the DST setting display.
The above rule is the EU rule for the start of summer time.
J
The menu for the end of summer time has the same
structure. The values are now entered accordingly.
J
The DIFF time difference value can be modified both for the
summer time setting and the winter time setting. The value
is always the same.
Summer time means a positive value + X:XX.
Winter time means a negative value – X:XX.
J
Behavior on 29 February
If the time change is set for 29.02. at HH.MM, the switch
time for years that are not leap years will occur on 01.03 at
HH.MM.
The switch time minus the time difference should not go into
28.02. The following applies:
0:15 is put back by –30 min. New time: 28.02. 23:45
MN05013003E
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217
EZ500_700.book Page 218 Tuesday, May 3, 2005 5:15 PM
EZ Settings
J
Behavior for summer time end on 01.01.
If 01.01. is selected for the end of summer time, ensure the
following:
The DST time minus the time difference should not go into
31.12. Otherwise the time will continue to run until the set
time minus the time difference is 0:00 on the 01.01. The
time will then continue to run with 0:00.
J
Setting the time manually within the summer time end
setting:
At 3:00 on summer time end the time is to be put back by
one hour to 2:00.
The clock is set at 1:30 to 3:05. EZ will interpret this as 3:05
winter time. A time change will not be carried out.
Activating debounce
(input delay)
Input signals can be evaluated by EZ with an input delay. This
enables, for example, the trouble-free evaluation of switches
and pushbutton actuators subject to contact bounce.
J
Factory setting:
Debounce is activated.
High-speed counter functions are evaluated independently of
the debounce function.
In many applications, however, very short input signals have
to be monitored. In this case, the debounce function can be
switched off.
XPress DEL and ALT to call up the System menu.
XSelect the SYSTEM menu.
218
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MN05013003E
EZ500_700.book Page 219 Tuesday, May 3, 2005 5:15 PM
Activating debounce (input delay)
DEBOUNCE
P BUTTONS
RUN MODE
CARD MODE
DEBOUNCE
P BUTTONS
RUN MODE
CARD MODE
J
If EZ is password-protected you cannot open the System
menu until you have “unlocked” it.
Æ
The input delay (debounce) is set with the DEBOUNCE menu
item.
æ
åÆ
æ
Activating debounce (input delay)
If a tick å is next to DEBOUNCE; this means that the
Debounce function has been switched on.
If this is not so, proceed as follows:
XSelect DEBOUNCE and press OK.
Debounce mode will be activated and the display will show
DEBOUNCE å.
Press ESC to return to the Status display.
Deactivating debounce (input delay)
If EZ is showing DEBOUNCE in the display, this means that
Debounce mode has already been deactivated.
XOtherwise select DEBOUNCE å and press OK.
If Debounce mode is deactivated the display will show
DEBOUNCE.
J
MN05013003E
How EZ input and output signals are processed internally is
explained in section “Delay times for inputs and outputs”,
from page 234.
For more information visit: www.EatonElectrical.com
219
EZ500_700.book Page 220 Tuesday, May 3, 2005 5:15 PM
EZ Settings
Activating and deactivating
the P buttons
Even though the cursor buttons (P buttons) have been set as
pushbutton actuator inputs in the circuit diagram, this function
is not activated automatically. This prevents any unauthorized
use of the cursor buttons. The P buttons can be activated in
the System menu.
J
If EZ is password-protected you cannot open the System
menu until you have “unlocked” it.
J
Factory setting:
The P buttons are not activated.
The P buttons are activated and deactivated via the
P BUTTONS menu.
DEBOUNCE
P BUTTONS
RUN MODE
CARD MODE
DEBOUNCE
åÆ
æ
åÆ
P BUTTONS å
RUN MODE
CARD MODE
XPress DEL and ALT to call up the System menu.
XSelect the SYSTEM menu.
XMove the cursor to the P BUTTONS menu.
æ
Activating the P buttons
If EZ is displaying P BUTTONS
buttons are active.
å, this means that the P
XOtherwise select P BUTTONS and press OK.
EZ changes the display to P BUTTONS
å and the P
buttons are activated.
XPress ESC to return to the Status display.
Function of the P buttons
The P buttons are only active in the Status display. In this
display you can use the P buttons to activate inputs in your
circuit diagram.
J
220
If a text is displayed, the P buttons only function if a value
entry is not carried out.
For more information visit: www.EatonElectrical.com
MN05013003E
EZ500_700.book Page 221 Tuesday, May 3, 2005 5:15 PM
Startup behavior
Deactivating the P buttons
XSelect P BUTTONS
å and press OK.
EZ changes the display to P BUTTONS and the P buttons
are deactivated.
J
Startup behavior
When deleting a circuit diagram in EZ500, the P buttons are
deactivated automatically. If a circuit diagram is loaded from
the memory card or from EZSoft, the status set there is also
transferred.
The startup behavior is an important aid during the
commissioning phase. The circuit diagram which EZ contains
is not yet fully wired up, or the system or machine is in a state
which EZ is not permitted to control. The outputs should not
be controlled when EZ is switched on.
Setting the startup behavior
J
The EZ models without a display can only be started in RUN
mode.
Requirement: EZ must contain a valid circuit diagram.
J
Factory setting:
RUN mode is activated.
Switch to the System menu.
J
If EZ is password-protected, the System menu can only be
accessed after EZ has first been “unlocked” (J section
“Unlocking EZ”, from page 203).
Specify the operating mode which EZ must use when the
power supply is switched on.
MN05013003E
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221
EZ500_700.book Page 222 Tuesday, May 3, 2005 5:15 PM
EZ Settings
Activating RUN mode
Displayed as EZ RUNMODE å, this means that EZ will start
in RUN mode when the power supply is switched on.
DEBOUNCE
åÆ
RUN MODE
å
DEBOUNCE
åÆ
RUNMODE
å
P BUTTONS
CARD MODE
P BUTTONS
CARD MODE
XOtherwise select RUN MODE and press OK.
RUN mode is activated.
æ
æ
XPress ESC to return to the Status display.
Deactivating RUN mode
XSelect RUN MODE å. Press the OK button.
The RUN mode function is deactivated.
EZ is factory set with the display showing RUN MODE å,
which means that EZ starts in RUN mode when the power
supply is switched on.
Table 32:
Startup behavior
Startup behavior
Menu displayed
Status of EZ after
startup
EZ starts in STOP mode
RUN MODE
EZ is in STOP mode
EZ starts in RUN mode
RUN MODEå
EZ is in RUN mode
Behavior when the circuit diagram is deleted
The setting for the startup behavior is an EZ device function.
When the circuit diagram is deleted this does not result in the
loss of the setting selected.
Behavior during upload/download to card or PC
When a valid circuit diagram is transferred from EZ to a
memory card or the PC or vice versa, the setting is still
retained.
J
222
The EZ models without a display can only be started in RUN
mode.
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MN05013003E
EZ500_700.book Page 223 Tuesday, May 3, 2005 5:15 PM
Startup behavior
Possible faults
EZ will not start in RUN mode:
• EZ does not contain a program.
• You have put EZ in STOP mode (RUN MODE menu
displayed).
Card mode behavior
The startup behavior using a memory card is for applications
where unskilled personnel have to change the memory card
with EZ de-energized.
EZ only starts in the RUN mode if a memory card with a valid
program is inserted.
If the program on the memory card is different to the program
in EZ, the program from the card is loaded into EZ and EZ
starts in RUN mode.
J
Factory setting:
Card mode is not activated.
XSwitch to the System menu.
J
If EZ is password-protected, the System menu can only be
accessed after EZ has first been “unlocked” (J section
“Unlocking EZ”, from page 203).
Activation of card mode
Displayed in EZ as CARD MODE
å, this means that
when the power supply is switched on, EZ will only start in
RUN mode if a memory card with a valid program has been
inserted.
DEBOUNCE
åÆ
RUN MODE
å
P BUTTONS
CARD MODE åæ
MN05013003E
XOtherwise select CARD MODE and press the OK button.
EZ will start up with the program on the card.
XPress ESC to return to the Status display.
For more information visit: www.EatonElectrical.com
223
EZ500_700.book Page 224 Tuesday, May 3, 2005 5:15 PM
EZ Settings
J
Card mode only functions with the EZ-M-32K memory card.
Previous memory cards did not support this function.
DEBOUNCE
åÆ
Deactivating card mode
XSelect CARD MODE å and press the OK button.
RUN MODE
å
The Card mode function is deactivated.
P BUTTONS
CARD MODE
æ
EZ is factory set with the display showing CARD MODE,
which means that EZ without a memory card starts in RUN
mode when the supply voltage is applied.
224
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MN05013003E
EZ500_700.book Page 225 Tuesday, May 3, 2005 5:15 PM
Setting the cycle time
Setting the cycle time
EZ allows you to fix the cycle time. To do this, move to the
SYSTEM menu and from there to the CYCLE TIME.. menu
J
P BUTTONS
Æ
CARD MODE
å
RUN MODE
å
CYCLE TIME.æ
CYCLE TIME
00 MS
CYCLE TIME
35 MS
J
Factory setting:
The cycle time is set to 00 ms.
The cycle time can only be set in STOP mode.
EZ is in STOP mode.
XSelect CYCLE TIME and press OK.
The following menu appears:
XPress OK.
You can now enter the set cycle time.
• ú í Move between the parameters
• ÍÚ Change value.
XPress OK to acknowledge the value: e.g. 35 ms.
The minimum set cycle time is 35 ms. The cycle time can be
lengthened if EZ requires more time to process the program.
The entry of a set cycle time is only useful in applications
involving two-step controllers or similar functions.
With a cycle time setting of 00 ms, EZ will process the circuit
diagram and the program at the fastest possible speed.
(see also inside EZ.. Cycle time)
Set cycle time value range:
between 00 and 60 ms.
MN05013003E
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225
EZ500_700.book Page 226 Tuesday, May 3, 2005 5:15 PM
EZ Settings
Retention (non-volatile data
storage)
It is a requirement of system and machine controllers for
operating states or actual values to have retentive settings.
What this means is that the values will be retained safely even
after the supply voltage to a machine or system has been
switched off, and will also be retained until the next time the
actual value is overwritten.
J
Factory setting:
The retention function is not activated.
Permissible markers and function relays
It is possible to retentively store (non-volatile memory) the
actual values (status) of markers, timing relays and up/down
counters.
The following markers and function relays can be set to have
retentive actual values:
•
•
•
•
Markers M9 to M12, M13 to M16, N9 to N16
Up/down counters: C5, C6, C7, C8, C13 to C16
Text function relays: D1 to D8
Timing relays: T7, T8, T13 to T16
Attention!
The retentive data is kept every time the power supply is
switched off. Data security is assured for 1000000 write
cycles.
Setting retentive behavior
Requirement: EZ must be in STOP mode.
XSwitch to the System menu.
J
226
If EZ is password-protected, the System menu can only be
accessed after EZ has first been “unlocked” (J section
“Unlocking EZ”, from page 203).
For more information visit: www.EatonElectrical.com
MN05013003E
EZ500_700.book Page 227 Tuesday, May 3, 2005 5:15 PM
Retention (non-volatile data storage)
RUN MODE
CARD MODE
åÆ
CYCLE TIME.
RETENTION..æ
M 9 - M12 åÆ
M13 - M16
N 9 - N16
C 5 - C 7 åæ
C 8
C13 - C16
å
XSwitch to STOP mode.
XSwitch to the System menu.
XMove to the SYSTEM menu and continue to the
RETENTION… menu.
XPress the OK button.
The first screen display is the selection of the marker range.
XÍÚ Select a range.
XPress OK to select the marker, the function relay or the
range that is to be retentive (tick on the line).
Press ESC to exit the entry for the retentive ranges.
D 1 - D 8
T7
T8
T13 - T16
M 9 - M12 åÆ
M13 - M16
N 9 - N16
C 5 - C 7 åæ
C 8
C13 - C16
D 1 - D 8
T 7
T 8
T13 - T16
MN05013003E
å
å
Example:
M9 to M12, counters C5 to C7, C8 as well as timing relays T7
and T8 are retentive. Indicated by the tick on the line.
The default setting of EZ is selected so that no retentive data
is selected. In this setting, EZ works without retentive actual
values if a valid circuit diagram is present. When EZ is in
STOP mode or has been switched to a de-energized state, all
actual values are cleared.
å
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EZ500_700.book Page 228 Tuesday, May 3, 2005 5:15 PM
EZ Settings
Deleting retentive actual values
The retentive actual values are cleared if the following is
fulfilled (applies only in STOP mode):
• When the circuit diagram is transferred from EZSoft or the
memory card to the EZ control relay, the retentive actual
values are reset to 0. This also applies when there is no
program on the memory card. In this case the old circuit
diagram is retained in EZ.
• When the selected retentive markers, function relays or text
display are deactivated.
• When the circuit diagram is deleted via the DELETE
FUNCT menu.
The operating hours counters are always retentive. The actual
values can only be reset by means of a special reset operation
from the circuit diagram.
Transferring retentive behavior
The setting for retentive behavior is a circuit diagram setting;
in other words, the retention setting is on the memory and is
transferred with the circuit diagram when uploading or
downloading from the PC.
228
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MN05013003E
EZ500_700.book Page 229 Tuesday, May 3, 2005 5:15 PM
Retention (non-volatile data storage)
Changing the operating mode or the circuit diagram
When the operating mode is changed or the EZ circuit
diagram is modified, the retentive data is normally saved
together with their actual values. The actual values of relays
no longer being used are also retained.
Changing the operating mode
If you change from RUN to STOP and then back to RUN, the
actual values of the retentive data will be retained.
Modifying the EZ circuit diagram
If a modification is made to the EZ circuit diagram, the actual
values will be retained.
Attention!
Even if the markers and function relays that were retentive
are deleted from the circuit diagram, the retentive actual
values remain when changing from STOP to RUN, and
when switching the device off and on. Should these relays
be used again in the circuit diagram, they will still have their
former actual values.
Changing the startup behavior in the SYSTEM menu
The retentive actual values in EZ will be retained irrespective
of the RUN MODE or STOP MODE settings.
MN05013003E
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EZ Settings
Displaying device
information
Device information is provided for service tasks and for
determining the capability of the device concerned.
This function is only available with devices featuring a display.
Exception: Terminal mode with the EZD.
EZ enables the display of the following device information:
•
•
•
•
•
•
AC, AB (AC voltage) or DA, DC (DC voltage),
T (transistor output) or R (relay output)
C (clock provided)
LCD (display provided)
OS: 1.10.204 (operating system version)
CRC: 25825 (Checksum of the operating system is only
displayed in STOP mode).
• Program name if this was assigned in EZSoft.
XSwitch to the main menu.
J
PROGRAM... Æ
STOP å RUN
PARAMETER...
INFO...
SET CLOCK..
The device information is always available. The password
does not prevent access.
XSelect the main menu.
XUse the Ú cursor button to select the INFO... menu
XPress the OK button.
æ
This will display all device information.
DC TC LCD
OS: 1.00.027
CRC: 02752
Press ESC to exit the display.
PROGRAM_0815
230
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MN05013003E
EZ500_700.book Page 231 Tuesday, May 3, 2005 5:15 PM
6
EZ circuit diagram cycle
Inside EZ
In conventional control systems, a relay or contactor control
processes all the rungs in parallel. The speed with which a
contactor switches in this case depends on the components
used, and ranges from 15 to 40 ms for relay pick-up and
drop-out.
With EZ the circuit diagram is processed with a
microprocessor that simulates the contacts and relays of the
circuit concerned and thus processes all switching operations
considerably faster. Depending on its size, the EZ circuit
diagram is processed cyclically every 2 to 40 ms.
During this time, EZ passes through five segments in
succession.
How EZ evaluates the circuit diagram:
Rungs
Segment
1
1
2
3
4
2
3
4
5
I1-I4-Ö1-TT2
I2-I3----RT2
T2-u-----ÄQ1
P1-kêê êêê
…
I1-q1-j--ÄQ8
In the first three segments EZ evaluates the contact fields in
succession. As it does so, EZ also checks whether the
contacts are connected in parallel or series and stores the
switching states of all the contact fields.
In the fourth segment, EZ assigns the new switching states to
all the coils in one pass.
MN05013003E
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Inside EZ
The fifth segment is outside the circuit diagram and EZ uses it
to establish contact to the “outside world”: The output relays
Q1 to Q... are switched and inputs I1 to I.. are read again. EZ
also copies all the new switching states to the status image
register.
EZ only uses this status image for one cycle. This ensures that
each rung is evaluated with the same switching states for one
cycle, even if the input signals at I1 to I12, for example,
change their status several times within a cycle.
Evaluation in the circuit diagram and high-speed counter
functions
When using high-speed counter functions, the signal state is
continuously counted or measured irrespective of the
processing of the circuit diagram. (C13, C14 high-speed up/
down counters, C15, C16 frequency counters)
EZ operation and effects on circuit diagram creation
EZ evaluates the circuit diagram in these five segments in
succession. You should therefore remember two points when
you create your circuit diagrams:
• The changeover of a relay coil does not change the
switching state of an associated contact until the next cycle
starts.
• Always wire forwards, upwards or downwards. Never wire
backwards.
232
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EZ500_700.book Page 233 Tuesday, May 3, 2005 5:15 PM
EZ circuit diagram cycle
I1uI2----ÄQ1
Q1k
Example: switching in the next cycle
Start condition:
• I1, I2 switched on
• Q1 switched off.
This is the circuit diagram of a self-latching circuit. If I1 and I2
are closed, the switching state of relay coil ÄQ1 is latched via
contact Q1.
• 1st cycle: Inputs I1 and I2 are switched on. Coil ÄQ1 picks
up.
• Contact Q1 remains switched off since EZ evaluates from
left to right.
• 2nd cycle: The self-latching function now becomes active.
EZ has transferred the coil states to contact Q1 at the end
of the first cycle.
Example: Do not wire backwards
This example is shown in section “Creating and modifying
connections”. It was used there to illustrate how NOT to do it.
I1-Q4-i3o
z-----k
hI2-I4-ÄQ2
I1-Q4-i3-ÄM1
I2-I4-M1-ÄQ2
MN05013003E
In the third rung, EZ finds a connection to the second rung in
which the first contact field is empty. The output relay is not
switched.
When wiring more than three contacts in series, use one of the
marker relays.
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Inside EZ
Delay times for inputs and
outputs
The time from reading the inputs and outputs to switching
contacts in the circuit diagram can be set in EZ via the delay
time.
This function is useful, for example, in order to ensure a clean
switching signal despite contact bounce.
S1
0V
Figure 82:
I1
EZ input assigned with a switch
EZ-DC, EZ-DA, EZ-AB and EZ-AC units function with different
input voltages and therefore also have different evaluation
characteristics and delay times.
Delay times with EZ-DA and EZ-DC basic units
The delay time for DC signals is 20 ms.
S1
1
0
1
B
B
0
Figure 83:
234
A
C
Delay times of EZ-DC and EZ-DA basic units
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MN05013003E
EZ500_700.book Page 235 Tuesday, May 3, 2005 5:15 PM
Delay times for inputs and outputs
An input signal S1 must therefore be 15 V or 8 V (EZ-DA) for
at least 20 ms on the input terminal before the switch contact
will change from 0 to 1 (range A). If applicable, this time must
also include the cycle time (range B) since EZ does not detect
the signal until the start of a cycle.
The same time delay (range C) applies when the signal drops
out from 1 to 0.
If the debounce is switched off, EZ responds to an input signal
after just 0.25 ms.
S1
1
0
1
0
Figure 84:
B
A
B
C
Switching behavior with input debounce disabled
Typical delay times with the debounce delay switched off are:
• On delay for I1 to I12:
– 0.25 ms (DC),
– 0.3 ms (EZ-DA)
• Off delay for
– I1 to I6 and I9 to I12: 0.4 ms (EZ-DC), 0.3 ms (EZ-DA)
– I7 and I8: 0.2 ms (DC), 0.35 ms (EZ-DA)
J
MN05013003E
Ensure clean input signals when the debounce is
deactivated as EZ reacts even to very short signals.
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Inside EZ
Delay time with EZ-AB, EZ-AC basic units
The input delay with AC voltage signals depends on the
frequency. The appropriate values for 60 Hz are given in
brackets.
• On delay
– 80 ms at 50 Hz,
– 66 ms at 60 Hz,
• Off delay for
– I1 to I6 and I9 to I12: 80 ms (66 ms)
– I7 and I8: 160 ms (150 ms) with EZ-AB
– I7 and I8: 80 ms (66 ms) with EZ-AC
S1
1
2
1
A
Figure 85:
2
B
On delay for EZ-AC, EZ-AB
If the debounce is switched on, EZ checks at 40 ms (33 ms)
intervals whether there is a half-wave present at an input
terminal (1st and 2nd pulses in A). If EZ detects two pulses in
succession, the device switches on the corresponding input
internally.
The input is switched off again as soon as EZ does not detect
two successive half-waves (1st and 2nd pulses in B).
S1
1
1
A
Figure 86:
236
1
2
B
Pushbutton with bounce
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MN05013003E
EZ500_700.book Page 237 Tuesday, May 3, 2005 5:15 PM
Delay times for inputs and outputs
If a button or switch bounces (A), the delay time may be
extended by 40 ms (33 ms) (A).
If the debounce delay is switched off, the delay time is
reduced.
• On delay
20 ms (16.6 ms)
• Off delay for
I1 to I6 and I9 to I12: 20 ms (16.6 ms)
• Off delay for
I7 and I8: 100 ms (100 ms) with EZ-AB, EZ-AC
S1
Figure 87:
1
1
A
B
On and off delays
EZ switches the contact as soon as it detects a pulse (A). If no
pulse is detected, EZ switches off the contact (B).
J
The procedure for changing the delay times is described in
section “Activating debounce (input delay)” on page 218.
Delay times for the analog inputs of EZ-AB, EZ-DA and
EZ-DC
The analog input values are read at 1 ms intervals. The values
are continuously smoothed so that the analog values do not
fluctuate excessively and remain clean. At the start of the
circuit diagram cycle, the currently available analog values
that have been smoothed are provided for processing in the
circuit diagram.
MN05013003E
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Inside EZ
Monitoring of short-circuit/
overload with EZ..-D.-T..
Depending on the type of EZ in use, it is possible to use the
internal inputs I15 and I16, R15, R16 to monitor for shortcircuits or overloads on an output.
• EZ512-...-T..:
I16 = Group fault alarm for outputs Q1 to Q4.
• EZ721.-..-T..:
– I16 = Group fault alarm for outputs Q1 to Q4.
– I15 = Group fault alarm for outputs Q5 to Q8.
• EZ620-D.-TE:
– R16 = Group fault alarm for outputs S1 to S4.
– R16 = Group fault alarm for outputs S5 to S8.
Table 33:
Status of error outputs
State of outputs
Status I15 or I16, R15 or R16
No fault found
0 = switched off (make contact)
At least one output has a
fault
1 = switched on (make contact)
The following examples are for I16 = Q1 to Q4. I15 indicates
in the same way short-circuits and overloads on Q5 to Q8.
I1-m16----ÄQ1
I16-------SM16
I1-m16----ÄQ1
I16-------SM16
M16-------ÄQ4
238
Example 1: Output with fault indication
The circuit diagram functions as follows:
If a transistor output reports a fault, M16 is set by I16. The
break contact of M16 switches off output Q1. M16 can be
cleared by resetting the EZ power supply.
Example 2: Output of operating state
The circuit functions as described in Example 1. An additional
feature is that when an overload is detected, the indicator light
at Q4 is actuated. If Q4 has an overload, it would 'pulse'.
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EZ500_700.book Page 239 Tuesday, May 3, 2005 5:15 PM
Expanding EZ700
I1-m16----ÄQ1
I16-------SM16
M16-------TT8
T8-------RM16
M16-------ÄQ4
Expanding EZ700
Example 3: Automatic reset of error signal
The circuit diagram functions in the same way as Example 2.
In addition the marker M16 is reset every 60 seconds by
timing relay T8 (on-delayed, 60 s). Should I16 remain at 1,
M16 will continue to be set. Q1 is set briefly to 1 until I16
switches off again.
You can expand EZ700 with EZ618-..-RE, EZ202-RE or
EZ620-D.-TE modules locally or use the EZ200-EZ coupling
module for remote expansion.
For this first install the units and connect the inputs and
outputs (J chapter “Installation”, page 29).
You process the inputs of the expansion devices as contacts
in the EZ circuit diagram in the same way as you process the
inputs of the basic unit. The input contacts are assigned the
operand identifiers R1 to R12.
R15 and R16 are the group fault alarms of the transistor
expansion unit (J section “Monitoring of short-circuit/
overload with EZ..-D.-T..”, page 238).
The outputs are processed as relay coils or contacts like the
outputs in the basic unit. The output relays are S1 to S8.
J
EZ618-..-RE provides the outputs S1 to S6. The other
outputs S7, S8 can be used as markers.
The following bus modules can also be connected:
•
•
•
•
MN05013003E
EZ205-ASI (AS-Interface),
EZ204-DP (PROFIBUS-DP),
EZ221-CO (CANopen) or
EZ222-DN (DeviceNet).
For more information visit: www.EatonElectrical.com
239
EZ500_700.book Page 240 Tuesday, May 3, 2005 5:15 PM
Inside EZ
These modules offer considerably more functions than simple
I/O expansion modules. Depending on type, all the data of the
program can be read and setpoints can be written. The
functions of the individual devices are described in the
relevant documentation.
How is an expansion unit recognized
EZ checks cyclically whether a device is sending data on
EZ-LINK.
Transfer behavior
The input and output data of the expansion units is transferred
serially in both directions. Take into account the modified
reaction times of the inputs and outputs of the expansion
units:
Input and output reaction times of expansion units
The debounce setting has no effect on the expansion unit.
Transfer times for input and output signals:
• Local expansion
Time for inputs R1 to R12:
30 ms + 1 cycle
• Time for outputs S1 to S6 (S8):
15 ms + 1 cycle
• Remote expansion
Time for inputs R1 to R12:
80 ms + 1 cycle
• Time for outputs S1 to S6 (S8):
40 ms + 1 cycle
240
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EZ500_700.book Page 241 Tuesday, May 3, 2005 5:15 PM
Expanding EZ700
Function monitoring of expansion units
If the power supply of the expansion unit is not present, no
connection can be established between it and basic unit. The
expansion inputs R1 to R12, R15, R16 are incorrectly
processed in the basic unit and show status 0. It cannot be
assured that the outputs S1 to S8 are transferred to the
expansion unit.
Warning!
Ensure the continuous monitoring of EZ expansion devices
in order to prevent switching faults in machines or systems.
The status of the internal input I14 of the basic unit signals the
status of the expansion device:
• I14 = “0”: expansion unit is functional
• I14 = “1”: expansion unit is not functional
J
I14-m1----Ä:8
---------SM1
I14--------Ä:8
I1uI2----ÄQ1
Q1k
:8
MN05013003E
When the power supply is switched on, basic units and
expansion devices may require different power up times to
reach full functionality. If the basic unit is powered up faster,
the internal monitoring input I14 will have status 1,
indicating that an expansion device is not functional.
Example
The expansion unit may be powered up later than the basic
unit. This means that the basic unit is switched to RUN when
an expansion unit is missing. The following EZ circuit diagram
detects if the expansion unit is functional or not functional.
As long as I14 is 1, the remaining circuit diagram is skipped.
If I14 is 0, the circuit diagram is processed. If the expansion
unit drops out for any reason, the circuit diagram is skipped.
M1 detects whether the circuit diagram was processed for at
least one cycle after the power supply is switched on. If the
circuit diagram is skipped, all the outputs retain their previous
state. The next example should be used if this is not desired.
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241
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Inside EZ
Example with LCD output and reset of the outputs
I14-m1----Ä:1
---------SM1
I14--------Ä:1
I2uI3----ÄQ1
Q1k
-----------Ä:8
:1------uÄD1
:8
hRQ1
Saving and loading circuit
diagrams
You can either use the EZ interface to save circuit diagrams
to a memory card or use EZSoft and a transmission cable to
transfer them to a PC.
EZ…-..-..X
EZ models without a keypad can be loaded with a circuit
diagram via EZSoft or automatically from the fitted memory
card every time the power supply is switched on.
Interface
The EZ interface is covered.
242
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EZ500_700.book Page 243 Tuesday, May 3, 2005 5:15 PM
Saving and loading circuit diagrams
DANGER of electric shock with EZ-AC units!
If the voltage terminals for phase (L) and neutral conductor
(N) are reversed, the connected 230 V/115 V voltage will be
present at the EZ interface. There is a danger of electric
shock if the plug is not properly connected or if conductive
objects are inserted into the socket.
Figure 88:
Do not touch the interface
XCarefully remove the cover with a screwdriver.
Figure 89:
Remove the cover
To close the slot again, push the cover back onto the slot.
MN05013003E
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243
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Inside EZ
Memory card
The card is available as an accessory EZ-M-32K for EZ500
and EZ700.
Circuit diagrams with all the data can be transferred to the
EZ500 and EZ700 from the EZ-M-32K memory card. A
transfer, however, in the other direction is not possible.
Each memory card can hold one EZ circuit diagram.
Information stored on the memory card is “non-volatile” and
thus you can use the card to archive, transfer and copy circuit
diagrams.
On the memory card you can save
•
•
•
•
the circuit diagram
all parameter sets of the function relays
all display texts with functions
the system settings,
– debounce
– P buttons
– password
– retention on/off,
• card start
• summer time start/end time settings
XInsert the memory card in the open interface slot.
EZ500 (EZ-M-32K):
EZ700 (EZ-M-32K):
2
2
1
1
Figure 90:
244
Inserting the memory card
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MN05013003E
EZ500_700.book Page 245 Tuesday, May 3, 2005 5:15 PM
Memory card
J
With EZ you can insert and remove the memory card even
if the power feed is switched on, without the risk of losing
data.
Loading or saving circuit diagrams
You can only transfer circuit diagrams in STOP mode.
Behavior of EZ device without integrated keypad, display
when loading the memory card
If a memory card is inserted in EZ variants without an onboard keypad and LCD, the circuit diagram is automatically
transferred from the memory card to the EZ…-..-..X when the
power supply is switched on. If the memory card contains an
invalid circuit diagram, the circuit diagram installed in the EZ
is retained.
MN05013003E
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245
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Inside EZ
J
EZ-M-32K
The memory card is detected when the card is inserted and
you move from the main menu to the program menu.
As read access to the EZ-M-32K card is possible, the card
can only be removed in the Status display. This ensures
that the correct card is always detected.
Only the EZ-M-32K memory card can be written to.
PROGRAM
DELETE PROG
CARD
XSwitch to STOP mode.
XSelect PROGRAM… from the main menu.
XSelect the CARD… menu option.
The CARD… menu option will only appear if you have
inserted a functional memory card.
DEVICE-CARD
CARD-DEVICE
DELETE CARD
J
You can transfer a circuit diagram from EZ to the card and
from the card to the EZ memory or delete the content of the
card.
If the operating voltage fails during communication with the
card, repeat the last step since EZ may not have transferred
or deleted all the data.
After transmission, remove the memory card and close the
cover.
REPLACE ?
Saving a circuit diagram to the card
XSelect DEVICE-CARD.
XConfirm the prompt with OK to delete the contents of the
memory card and replace it with the EZ circuit diagram.
Press ESC to cancel.
246
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EZ500_700.book Page 247 Tuesday, May 3, 2005 5:15 PM
Memory card
DEVICE-CARD
CARD-DEVICE
DELETE CARD
Loading a circuit diagram from the card
XSelect the CARD J DEVICE menu option.
XPress OK to confirm the prompt if you want to delete the EZ
memory and replace it with the card content.
Press ESC to go back one menu.
Attention!
Once you have started the CARD J DEVICE transfer, the
following operation is initiated:
• The RAM of the device is loaded from the card.
• The internal program memory is cleared.
• The data is written from the card to the internal retentive
program memory.
This is carried out in blocks. A complete program is not
transferred to the RAM for space reasons.
If an invalid program or an interruption occurs during the
read or write operation, EZ500 or EZ700 loses the program
in the internal memory.
DELETE ?
MN05013003E
Deleting a circuit diagram on the card
XSelect the DELETE CARD menu option.
XPress OK to confirm the prompt and to delete the card
content.
Press ESC to cancel.
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247
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Inside EZ
EZSoft
EZSoft is a PC program with which you can create, store, test
(simulate) and manage EZ circuit diagrams.
J
You should only transfer data between the PC and EZ using
the special PC interface cable, which is available as an
optional accessory EZ-PC-CAB.
DANGER of electric shock with EZ-AC units!
Only the EZ-PC CAB cable will guarantee reliable electrical
isolation from the interface voltage.
EZ-PC-CAB
Figure 91:
Plug in the EZ-PC-CAB
XConnect the PC cable to the serial PC interface.
XInsert the EZ plug in the opened interface.
XActivate the Status display on the EZ
J
EZ cannot exchange data with the PC while the circuit
diagram display is on screen.
Use EZSoft to transfer circuit diagrams from your PC to EZ
and vice versa. Switch EZ to RUN mode from the PC to test
the program using the current wiring.
EZSoft provides extensive help on how to use the software.
XStart EZSoft and click on Help.
The help provides all the additional information about EZSoft
that you will need.
248
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EZ500_700.book Page 249 Tuesday, May 3, 2005 5:15 PM
Overview with stand-alone display
INVALID PROG
If there are transmission problems, EZ will display the
INVALID PROG message.
XCheck whether the circuit diagram is suitable for the
destination device.
J
If the operating voltage fails during communication with the
PC, repeat the last step. It is possible that not all the data
was transferred between the PC and EZ.
EZ-PC-CA
B
Figure 92:
Removing the EZ-PC-CAB
XAfter transmission, remove the cable and close the cover.
Overview with stand-alone
display/operating unit
EZ500 and EZ700 can be operated with a stand-alone
display/operating unit. In this configuration, all the display
information is transferred via the EZ interface.
This has the advantage that EZ can be operated remotely.
The texts in EZ are backlit and displayed on the front of the
operator or control panel in twice the size. The display/
operating unit provides protection to IP65.
MN05013003E
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Inside EZ
If a display/operating unit with a keypad is used, EZ can be
programmed and assigned parameters from “outside”.
J
Card mode operation is not possible when using a standalone display/operating unit. The interface can only be used
once.
The EZD-80 (IP65 display unit), EZD-80-B (IP65 display/
operating unit) with the EZD-CP4-500 power supply/
communication unit are currently available for use as standalone display/operating units.
J
Device version
The EZD-CP4 communication unit establishes permanent
communication with the EZ control relay. This increases
EZ's cycle time, and must be taken into account during
engineering.
Every EZ has the device version number printed on the left of
the device housing. The device version is indicated by the first
two digits of the device number.
DC 20.4 …28.8 V
3W
01-900000042
Figure 93:
Example of device version
This device is of device version 01.
The device version provides useful service information about
the hardware version and the version of the operating
system.The device version is important for selecting the
correct control relay for EZSoft.
250
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7
What Happens If ...?
You may sometimes find that EZ does not do exactly what you
expect. If this happens, read through the following notes
which are intended to help you solve some of the problems
you may encounter.
You can use the power flow display in EZ to check the logic
operations in the EZ circuit diagram with reference to the
switching states of contacts and relays.
Only qualified persons should test EZ voltages while the
device is in operation.
Messages from the EZ
system
EZ system
messages on the
LCD
Explanation
Remedy
No display
Power supply interrupted
Switch on the power supply
EZ LCD faulty
Replace EZ
Self-test aborted
Replace EZ
Memory card removed or not inserted
correctly before saving
Insert memory card
Memory card faulty
Replace memory card
EZ is faulty
Replace EZ
The memory for storing the retentive
values or the EZ circuit diagram memory is
faulty.
Replace EZ
Continuous display
TEST: AC
TEST: EEPROM
TEST: DISPLAY
TEST: CLOCK
ERROR: I2C
ERROR: EEPROM
MN05013003E
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What Happens If ...?
EZ system
messages on the
LCD
Explanation
Remedy
ERROR: CLOCK
Clock error
Replace EZ
ERROR: LCD
LCD is faulty
Replace EZ
ERROR: ACLOW
Incorrect AC voltage
Test the voltage
EZ is faulty
Replace EZ
Possible situations when
creating circuit diagrams
Possible situations when
creating circuit diagrams
Explanation
Remedy
Cannot enter contact or relay in
circuit diagram
EZ is in RUN mode
Select STOP mode
Time switch switches at wrong
times
Incorrect time or time switch parameters
Check time and
parameters
Message when using a memory
card PROG INVALID
EZ memory card contains no circuit
diagram
Change the version of
EZ or change the circuit
diagram on the
memory card
Circuit diagram on the memory card
uses contacts/relays that EZ does not
recognize
Power flow display does not
show changes to the rungs
EZ is in STOP mode
Select RUN mode
Association/connection not fulfilled
Check the circuit
diagram and parameter
sets and modify as
required
Relay does not activate coil
Incorrect parameter values/time
• Analog value comparison is incorrect
• Time value of timing relay is incorrect
• Function of timing relay is incorrect
Relay Q or M does not pick up
252
Relay coil has been wired up several
times
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Check coil field entries
MN05013003E
EZ500_700.book Page 253 Tuesday, May 3, 2005 5:15 PM
Possible situations when creating circuit
Possible situations when
creating circuit diagrams
Explanation
Remedy
Input not detected
Loose terminal contact
Check installation
instructions, check
external wiring
No voltage to switch/button
Broken wire
Relay output Q does not switch
and activate the load
EZ input is faulty
Replace EZ
EZ in STOP mode
Select RUN mode
No voltage at relay contact
Check installation
instructions, check
external wiring
EZ power supply interrupted
EZ circuit diagram does not activate
relay output
Broken wire
EZ relay is faulty
MN05013003E
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Replace EZ
253
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What Happens If ...?
Event
Event
Explanation
Remedy
The actual values are not being
stored retentively.
Retention has not been
switched on.
Switch on retention in the
SYSTEM menu.
The RETENTION... menu is not
displayed in the SYSTEM
menu.
EZ is in RUN mode
Select STOP mode
The SYSTEM menu is not
displayed.
This EZ model does not have
this menu.
Exchange EZ if you need
retention
EZ starts only in operating
mode STOP
No circuit diagram in EZ
Load, input circuit diagram
Startup behavior is set to the
function "Startup in operating
mode STOP".
Set the startup behavior in the
SYSTEM menu.
LCD display showing nothing
No power supply
Switch on the power supply
EZ is faulty
Press the OK button. If no menu
appears, replace the EZ.
Text displayed with too many
spaces
Enter text or do not select
EZ200-EZ bus coupler detected
without I/O expansion
Connect I/O expansion to
external EZ-LINK
GW flashes on the Status
display
254
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Appendix
Dimensions
45
110
90
102
7.5
4.5
M4
7.5
47.5
35.5
56.5
58
Figure 94:
MN05013003E
Dimensions of EZ200 in mm (for dimensions in inches
see page 257, table 34)
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Appendix
45
110
90
50
102
10.75
4.5
M4
47.5
35.75
56.5
71.5
58
Figure 95:
256
Dimensions of EZ512-… in mm (for dimensions in
inches see page 257, table 34)
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Dimensions
16.25
75
16.25
45
110
90
102
M4
4.5
47.5
107.5
56.5
58
MN05013003E
Figure 96:
Dimensions of EZ700 in mm (for dimensions in inches
see table 34)
Table 34:
Dimensions in inches
mm
inches
mm
inches
4.5
0.177
56.5
2.22
7.5
0.295
58
2.28
10.75
4.23
71.5
2.81
16.25
0.64
75
2.95
35.5
1.4
90
3.54
35.75
1.41
102
4.01
45
1.77
107.5
4.23
47.5
1.87
110
4.33
50
1.97
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Appendix
Technical Data
General
EZ…
EZ200
EZ512
EZ700
[mm]
35.5 × 90 × 56.5
71.5 × 90 × 56.5
107.5 × 90 × 56.5
[inches]
1.4 × 3.54 × 2.08
2.81 × 3.54 × 2.08
4.23 × 3.54 × 2.08
2 space units wide
4 SU (space units)
wide
6 SU (space units)
wide
[g]
70
200
300
[lb]
0.154
0.441
0.661
Dimensions W × H × D
Space units (SU) width
Weight
Mounting
DIN 50022, 35 mm rail or screw mounting with 3 ZB101-GF1 fixing
brackets (accessories); with EZ200 only 2 fixing brackets required.
Climatic environmental conditions
(Cold to IEC 60068-2-1, Heat to IEC 60068-2-2)
Ambient temperature
Installed horizontally/vertically
–25 to 55 °C, –13 to 131 °F
Condensation
Prevent condensation with suitable measures
LCD display (reliably legible)
0 to 55 °C, 32 to 131 °F
Storage/transport temperature
–40 to +70 °C, –40 to 158 °F
Relative humidity (IEC 60 068-2-30)
5 to 95 %, non-condensing
Air pressure (operation)
795 to 1080 hPa
Corrosion resistance
IEC 60 068-2-42
SO2 10 cm3/m3, 4 days
IEC 60 068-2-43
H2S 1 cm3/m3, 4 days
Inflammability class to UL 94
V0
Ambient mechanical conditions
Pollution degree
2
Degree of protection (EN 50178, IEC 60529,
VBG4)
IP 20
258
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Technical Data
Oscillations (IEC 60068-2-6)
10 to 57 Hz (constant amplitude 0.15 mm)
57 to 150 Hz (constant acceleration 2 g)
Shock (IEC 60068-2-27)
18 shocks (semi-sinusoidal 15 g/11 ms)
Drop (IEC 60068-2-31)
Drop height 50 mm
Free fall, packed (IEC 60068-2-32)
1m
Electromagnetic compatibility (EMC)
Electrostatic discharge (ESD), (IEC/EN 61 000-4-2,
severity level 3)
8 kV air discharge,
6 kV contact discharge
Electromagnetic fields (RFI), (IEC/EN 61000-4-3)
Field strength 10 V/m
Emitted interference
Interference immunity
(EN 55011, EN 55022) IEC 61000-6-1,2,3,4
Class B
Fast transient burst (IEC/EN 61000-4-4, severity
level 3)
2 kV power cables,
2 kV signal cables
High-energy pulses (surge) EZ-AC
(IEC/EN 61000-4-5)
2 kV power cable symmetrical
Surge EZ-DA, EZ-DC, EZ-AB
(IEC/EN 61000-4-5, severity level 2)
0.5 kV power cable symmetrical
Line-conducted interference (IEC/EN 61 000-4-6)
10 V
Dielectric strength
Clearance and creepage distances
EN 50178, UL 508, CSA C22.2, No 142
Dielectric strength
EN 50178
Overvoltage category/pollution degree
II/2
Tools and cable cross-sections
Solid
min. 0.2 mm2, max. 4 mm2/AWG: 22 – 12
Flexible with ferrule
min. 0.2 mm2, max. 2.5 mm2
/AWG:22 – 12
Factory wiring: to AWG 30
Slot-head screwdriver, width
3.5 × 0.8 mm
Tightening torque
0.6 Nm
MN05013003E
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Appendix
Backup/accuracy of real-time clock (only with EZ-C)
Clock battery back-up
200
180
160
140
120
a 100
80
60
40
20
0
25˚C
55˚C
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
b
 = backup time in hours
 = service life in years
Accuracy of the real-time clock
Normally ± 5 s/day, ~ ±0.5 h/year
Repetition accuracy of timing relays
Accuracy of timing relays
± 1 % of value
Resolution
Range “s”
10 ms
Range “M:S”
1s
Range “H:M”
1 min.
Retentive memory
Write cycles of the retentive memory (minimum)
1000000
Rungs (basic units)
EZ512, EZ700
128
Special approvals
CSA
Hazardous Locations CLASS I Division 2 Groups A, B, C and
D Temperature Code T3C –160 °C in 55 °C ambient.
(testing in progress)
260
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MN05013003E
EZ500_700.book Page 261 Tuesday, May 3, 2005 5:15 PM
Technical Data
Power supply
EZ512-AC-…, EZ719-AC-…, EZ512-AB-…, EZ719-AB-…
EZ512-AB-…, EZ719-AB-…
EZ512-AC-…, EZ719-AC-…
24 V AC
100/110/115/120/230/240 V
AC
+10/–15 %
20.4 to 26.4 V AC
+10/–15 %
85 to 264 V AC
Frequency, rated value, tolerance
50/60 Hz, ± 5 %
50/60 Hz, ±5 %
Input current consumption
EZ512-AB-… EZ719-AB-…
EZ512-AB-… EZ719-AB-...
Rated value (sinusoidal)
Operating range
at 115/120 V AC 60 Hz
Normally 40 mA/70 mA
at 230/240 V AC 50 Hz
Normally 20 mA/35 mA
at 24 V AC 50/60 Hz
Normally 200 mA/normally 300
mA
Voltage dips
20 ms, IEC/EN 61131-2
20 ms, IEC/EN 61131-2
Power loss
EZ512-AB-… EZ719-AB-...
EZ512-AC-… EZ719-AC-…
at 115/120 V AC
Normally 5 VA/normally 10 VA
at 230/240 V AC
Normally 5 VA/normally 10 VA
at 24 V AC
Normally 5 VA/normally 7 VA
EZ512-DA-…, EZ719-DA-..., EZ512-DC-…, EZ719-DC-…,
EZ721-DC-…
EZ512-DA-…, EZ719-DA-…
EZ512-DC-…, EZ719-DC-…,
EZ721-DC-…
Rated value
12 V DC,
+30 %, –15 %
24 V DC, +20 %, –15 %
Permissible range
10.2 to 15.6 V DC
20.4 to 28.8
Rated voltage
Residual ripple
5%
Input current at rated voltage
MN05013003E
5%
EZ512-DA-… EZ719-DA-…
EZ512-DC-… EZ7..-DC-…
Normally 140 mA/normally 200
mA
Normally 80 mA/normally 140
mA
For more information visit: www.EatonElectrical.com
261
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Appendix
EZ512-DA-…, EZ719-DA-…
EZ512-DC-…, EZ719-DC-…,
EZ721-DC-…
Voltage dips
10 ms, IEC/EN 61131-2
Power loss
EZ512-DA-… EZ719-DA-…
EZ512-DC-… EZ7..-DC-…
Normally 2 mA/3.5 mA
Normally 2 W/normally 3.5 W
Inputs
EZ-512-AB-…, EZ719-AB-…
EZ-512-AB-…
EZ719-AB-...
Number
8
12
Status display
LCD (if provided)
LCD (if provided)
2 inputs (I7, I8) usable as
analog inputs
4 inputs (I7, I8, I11, I12) usable
as analog inputs
To power supply
No
No
Between each other
No
No
To the outputs
Yes
Yes
24 V AC
24 V AC
0 signal
0 to 6 V AC
0 to 6 V AC
1 signal
(I7, I8)
>8V AC, > 11 V DC
(I1 to I6, I9 to I12)14 to 26.4 V
AC
(I7, I8, I11, I12)
>8 V AC, >11 V DC
(I1 to I6, I9 to I10) 14 to 26.4 V
AC
Rated frequency
50/60 Hz
50/60 Hz
Input current on 1 signal
I1 to I6
(EZ719.. also I9 to I10)
4 mA at 24 V AC 50 Hz
4 mA at 24 V AC, 50 Hz
Input current on 1 signal
I7, I8,
(EZ719.. also I11, I12)
2 mA at 24 V AC, 50 Hz
2 mA at 24 V DC
2 mA at 24 V AC, 50 Hz
2 mA at 24 V DC
Digital inputs 24 V AC
Electrical isolation
Rated voltage L (sinusoidal)
262
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MN05013003E
EZ500_700.book Page 263 Tuesday, May 3, 2005 5:15 PM
Technical Data
EZ-512-AB-…
EZ719-AB-...
Delay time for 0 to 1 and 1 to 0 for I1 to I8, EZ719… also I9 to I12
Debounce ON
80 ms (50 Hz), 662/3 ms (60
Hz)
80 ms (50 Hz), 662/3 ms (60 Hz)
Debounce OFF
20 ms (50 Hz), 162/3 ms (60 Hz)
20 ms (50 Hz), 162/3 ms (60 Hz)
Max. permissible cable length (per input)
I1 to I8,
(with EZ719… also I9 to I10)
Normally 40 m
Normally 40 m
EZ-512-AC-…, EZ618-AC-.E, EZ719-AC-…
EZ-512-AC-…
EZ618-AC-.E, EZ719-AC-...
Number
8
12
Status display
LCD (if provided)
LCD (if provided)
To power supply
No
No
Between each other
No
No
To the outputs
Yes
Yes
0 signal
0 to 40 V AC
0 to 40 V AC
1 signal
79 to 264 V AC
79 to 264 V AC
50/60 Hz
50/60 Hz
Digital inputs 115/230 V AC
Electrical isolation
Rated voltage L (sinusoidal)
Rated frequency
MN05013003E
For more information visit: www.EatonElectrical.com
263
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Appendix
EZ-512-AC-…
EZ618-AC-.E, EZ719-AC-...
Input current with 1 signal
R1 to R12, I1 to I6
(EZ71. also I9 to I12)
6 × 0.5 mA at 230 V AC 50 Hz,
6 × 0.25 mA at 115 V AC 60 Hz
10 × (12) 0.5 mA at 230 V AC,
50 Hz
10 × (12) × 0.25 mA at
115 V AC, 60 Hz
Input current on 1 signal
I7, I8
2 × 6 mA at 230 V AC 50 Hz,
2 × 4 mA at 115 V AC 60 Hz
2 × 6 mA at 230 V AC 50 Hz,
2 × 4 mA at 115 V AC 60 Hz
Delay time for 0 to 1 and 1 to 0 for I1 to I6, I9 to I12
Debounce ON
80 ms (50 Hz), 662/3 ms (60 Hz)
80 ms (50 Hz), 662/3 ms (60 Hz)
Debounce OFF (also R1 to
R12)
20 ms (50 Hz), 162/3 ms (60 Hz)
20 ms (50 Hz), 162/3 ms (60 Hz)
Debounce ON
160 ms (50 Hz), 150 ms (60 Hz)
80 ms (50 Hz),662/3 ms (60 Hz)
Debounce OFF
100 ms (50 Hz/60 Hz)
20 ms (50 Hz), 162/3 ms (60 Hz)
Debounce ON
80 ms (50 Hz), 662/3 ms (60 Hz)
80 ms (50 Hz), 662/3 ms (60 Hz)
Debounce OFF
20 ms (50 Hz), 162/3 ms (60 Hz)
20 ms (50 Hz), 162/3 ms (60 Hz)
Delay time I7, I8 for 1 to 0
Delay time I7, I8 for 0 to 1
Max. permissible cable length (per input)
I1 to I6, R1 to R12
(with EZ719-.. also I9 to I12)
Normally 40 m
Normally 40 m
I7, I8
Normally 100 m
Normally 100 m
EZ512-DA-…, EZ719-DA-...
EZ512-DA-…
EZ719-DA-…
8
12
2 inputs (I7, I8) usable as
analog inputs
4 inputs (I7, I8, I11, I12) usable
as analog inputs
Digital inputs
Number
264
For more information visit: www.EatonElectrical.com
MN05013003E
EZ500_700.book Page 265 Tuesday, May 3, 2005 5:15 PM
Technical Data
EZ512-DA-…
EZ719-DA-…
LCD (if provided)
LCD (if provided)
To power supply
No
No
Between each other
No
No
To the outputs
Yes
Yes
Rated value
12 V DC
12 V DC
0 signal
4 V DC (I1 to I8)
4 V DC (I1 to I12)
1 signal
8 V DC (I1 to I8)
8 V DC (I1 to I12)
3.3 mA at 12 V DC
(I1 to I6)
3.3 mA at 12 V DC
(I1 to I6, I9 to I12)
1.1 mA at 12 V DC
1.1 mA at 12 V DC
Debounce ON
20 ms
20 ms
Debounce OFF
Normally 0.3 ms (I1 to I16)
Normally 0.35 ms (I7, I8)
Normally 0.3 ms (I1 to I6, I9, I10)
Normally 0.35 ms (I7, I8, I11,
I12)
Debounce ON
20 ms
20 ms
Debounce OFF
Normally 0.3 ms (I1 to I16)
Normally 0.15 ms (I7, I8)
Normally 0.4 ms
(I1 to I6, I9 to I10)
Normally 0.2 ms (I7, I8, I11, I12)
100 m
100 m
Status display
Electrical isolation
Rated voltage
Input current on 1 signal
I7, I8
Delay time for 0 to 1
Delay time for 1 to 0
Cable length (unshielded)
EZ512-DC-…, EZ6..-DC-.E, EZ7..-DC-EZ512-DC-…
EZ6..-DC-.E
EZ7..-DC-…
8
12
12
Digital inputs
Number
2 inputs (I7, I8)
usable as analog
inputs
MN05013003E
For more information visit: www.EatonElectrical.com
4 inputs (I7, I8, I11, I12)
usable as analog inputs
265
EZ500_700.book Page 266 Tuesday, May 3, 2005 5:15 PM
Appendix
EZ512-DC-…
Status display
EZ6..-DC-.E
EZ7..-DC-…
LCD (if provided)
Electrical isolation
To power supply
No
No
No
Between each other
No
No
No
To the outputs
Yes
Yes
Yes
Rated value
24 V DC
24 V DC
24 V DC
0 signal
< 5 V DC (I1 to I8)
< 5 V DC (R1 to R12)
< 5 V DC (I1 to I12)
1 signal
> 8 V DC (I7, I8)
Rated voltage
Input current on 1 signal
I7, I8
(EZ7..-DC-.. also I11,
I12)
> 8 V DC (I7, I8, I11,
I12)
> 15 V DC (I1 to I6)
> 15 V DC (R1 to
R12)
> 15 V DC (I1 to I6, I9,
I10)
3.3 mA at 24 V DC (I1
to I6)
3.3 mA at 24 V DC
(R1 to R12)
3.3 mA at 24 V DC (I1 to
I6, I9, I10)
2.2 mA at 24 V DC
2.2 mA at 24 V DC
Delay time for 0 to 1
Debounce ON
20 ms
Debounce OFF
EZ512.DC-.. I1 to I8
EZ6..-DC-.. R1 to R12
EZ7.._DC-.. I1 to I12
Normally 0.25 ms
20 ms
20 ms
Delay time for 1 to 0
Debounce ON
20 ms
20 ms
20 ms
Debounce OFF
• Normally 0.4 ms (I1
to I16)
• Normally 0.2 ms
(I7, I8)
Normally 0.4 ms (R1
to R12)
• Normally 0.4 ms (I1
to I6, I9, I10)
• Normally 0.2 ms (I7,
I8, I11, I12)
Cable length
(unshielded)
100 m
100 m
100 m
266
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MN05013003E
EZ500_700.book Page 267 Tuesday, May 3, 2005 5:15 PM
Technical Data
High-speed counter inputs, I1 to I4
EZ512-DA-…, EZ512DC-…, EZ719-DA-…,
EZ719-DC-…, EZ721DC-…
4
Number
Cable length (shielded)
m
20
kHz
<1
High-speed up and down counters
Counting frequency
Pulse shape
Square wave
Mark-to-space ratio
1:1
Frequency counters
Counting frequency
kHz
<1
Pulse shape
Square wave
Mark-to-space ratio
1:1
EZ512-AB-…, EZ512-DA-…,
EZ512-DC-…
EZ719-AB-…, EZ719-DA-…,
EZ719-DC-…, EZ721-DC-…
2
4
To power supply
No
No
To the digital inputs
No
No
To the outputs
Yes
Yes
Input type
DC voltage
DC voltage
Signal range
0 to 10 V DC
0 to 10 V DC
Resolution analog
10 mV
10 mV
Resolution digital
0.01 (10-bit, 1 to 1023)
0.01 (10-bit, 0 to 1023)
Input impedance
11.2 kΩ
11.2 kΩ
Two EZ devices
±% of actual value
±3 % of actual value
Within a single device
± 2 % of actual value (I7, I8), ± 0.12 V
Analog input I7, I8, I11, I12
Number
Electrical isolation
Accuracy of
MN05013003E
For more information visit: www.EatonElectrical.com
267
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Appendix
EZ512-AB-…, EZ512-DA-…,
EZ512-DC-…
EZ719-AB-…, EZ719-DA-…,
EZ719-DC-…, EZ721-DC-…
Conversion time, analog/digital
Debounce ON: 20 ms
Debounce OFF: every cycle
Input current at 10 V DC
1 mA
1 mA
Cable length (shielded)
30 m
30 m
Relay outputs
EZ512-..-R…, EZ618-..-RE/EZ719-..-R.., EZ202-RE
EZ512-…-R…
EZ618-..-RE/
EZ719-..-R..
EZ202-RE
Number
4
6
2
Type of outputs
Relay
In groups of
1
1
2
Connection of outputs in parallel to
increase the output
Not permissible
Protection for an output relay
Miniature circuit-breaker B16 or 8 A fuse (slow)
Potential isolation to mains supply,
inputs
Yes
300 V AC (safe isolation)
600 V AC (basic isolation)
Mechanical lifespan
(switching operations)
10 × 106
Contacts relays
Conventional therm. current
8 A (10 A UL)
Recommended for load
> 500 mA, 12 V AC/DC
Short-circuit resistance cos ϕ = 1
16 A characteristic B (B16) at 600 A
Short-circuit resistance cos ϕ =
0.5 to 0.7
16 A characteristic B (B16) at 900 A
Rated impulse withstand voltage
Uimp contact coil
6 kV
Rated insulation voltage Ui
268
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MN05013003E
EZ500_700.book Page 269 Tuesday, May 3, 2005 5:15 PM
Technical Data
EZ512-…-R…
Rated operational voltage Ue
250 V AC
Safe isolation to EN 50178
between coil and contact
300 V AC
Safe isolation to EN 50178
between two contacts
300 V AC
EZ618-..-RE/
EZ719-..-R..
EZ202-RE
Making capacity
AC-15 250 V AC, 3 A (600 Ops/
h)
300000 operations
DC-13 L/R 150 ms 24 V DC,
1 A (500 Ops/h)
200000 operations
Breaking capacity
AC-15 250 V AC, 3 A (600 Ops/
h)
300 000 operations
DC-13 L/R 150 ms 24 V DC,
1 A (500 Ops/h)
200 000 operations
Filament lamp load
1000 W at 230/240 V AC/25000 operations
500 W at 115/120 V AC/25000 operations
Fluorescent tube with ballast
10 × 58 W at 230/240 V AC/25000 operations
Conventional fluorescent tube,
compensated
1 × 58 W at 230/240 V AC/25000 operations
Fluorescent tube,
uncompensated
10 × 58 W at 230/240 V AC/25000 operations
Operating frequency, relays
Mechanical switching operations
10 million (1 × 107)
Mechanical switching frequency
10 Hz
Resistive lamp load
2 Hz
Inductive load
0.5 Hz
MN05013003E
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269
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Appendix
UL/CSA
Uninterrupted current at 240 V AC/24 V DC
10/8 A
AC
Control Circuit Rating Codes
(Utilization category)
B300 Light Pilot Duty
Max. rated operational voltage
300 V AC
Max. thermal continuous current cos ϕ = 1 with B300
5A
Maximum make/break capacity cos ϕ ≠ 1(Make/break) with
B300
3600/360 VA
Control Circuit Rating Codes
(Utilization category)
R300 Light Pilot Duty
Max. rated operational voltage
300 V DC
Max. thermal uninterrupted current with R300
1A
Maximum make/break capacity with R300
28/28 VA
DC
Transistor outputs
EZ-512-D.-T…, EZ620-DC-.E, EZ72…
EZ512-D.-T…
EZ620-DC-.E, EZ72…
Number of outputs
4
8
Contacts
Semiconductors
Semiconductors
Rated voltage Ue
24 V DC
24 V DC
20.4 to 28.8 V DC
20.4 to 28.8 V DC
Permissible range
Residual ripple
5%
5%
Supply current
0 signal
Normally 9 mA/max. 16 mA
Normally 18 mA/max. 32 mA
1 signal
Normally 12 mA, max. 22 mA
Normally 24 mA, max. 44 mA
Reverse polarity protection
Yes, caution! If voltage is applied to the outputs when the polarity of
the power supply is reversed, this will result in a short circuit.
Potential isolation to mains
supply, inputs
Yes
Yes
Rated current Ie on 1 signal
max. 0.5 A DC
max. 0.5 A DC
Lamp load
5 Watts without RV
5 Watts without RV
270
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MN05013003E
EZ500_700.book Page 271 Tuesday, May 3, 2005 5:15 PM
Technical Data
EZ512-D.-T…
EZ620-DC-.E, EZ72…
< 0.1 mA
< 0.1 mA
On 0 signal
with ext. load < 10 MΩ
2.5 V
2.5 V
On 1 signal, Ie = 0.5 A
U = Ue – 1 V
U = Ue – 1 V
Residual current at state 0 per
channel
Max. output voltage
Short-circuit protection
Yes, thermal (detected via diagnostics input I16, I15; R16;R15)
Short-circuit tripping current
for Ra 10 mΩ
0.7 A
Ie
2 A per output
Max. total short-circuit current
8A
16 A
Peak short-circuit current
16 A
32 A
Thermal cutout
Yes
Yes
Max. switching frequency with
constant resistive load
RL < 100 kΩ: operations/hour
40000 (depends on program and load)
Parallel connection of outputs
with resistive load; inductive
load with external suppression
circuit (see page 56)
combination within a group
Group 1: Q1 to Q4
MN05013003E
• Group 1:
Q1 to Q4, S1 to S4
• Group 2:
Q5 to Q8, S5 to S8
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Appendix
EZ512-D.-T…
EZ620-DC-.E, EZ72…
Number of outputs
max. 4
max. 4
Total maximum current
2.0 A, Attention! Outputs must be actuated simultaneously and for
the same time duration.
LCD display (if provided)
Status display of the outputs
Inductive load (without external suppressor circuit)
General explanations:
T0.95 = time in milliseconds until 95 % of the stationary current
is reached.
T0.95 ≈ 3 × T0.65 = 3 ×
L
R
Utilization category in groups for:
•
•
•
•
Q1 to Q4,
Q5 to Q8,
S1 to S4,
S5 to S8.
T0.95 = 1 ms
R = 48 Ω
L = 16 mH
Utilization factor
DC13
T0.95 = 72 ms
R = 48 Ω
L = 1.15 H
Utilization factor
g = 0.25
Relative duty factor
%
100
Maximum switching frequency
f = 0.5 Hz
Maximum duty factor
DF = 50 %
Operations/h
1500
g = 0.25
Relative duty factor
%
100
Maximum switching frequency
f = 0.5 Hz
Maximum duty factor D = 50 %
Operations/h
1500
Other inductive loads:
272
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MN05013003E
EZ500_700.book Page 273 Tuesday, May 3, 2005 5:15 PM
List of the function relays
T0.95 = 15 ms
R = 48 Ω
L = 0.24 H
Utilization factor
g = 0.25
Relative duty factor
%
100
Maximum switching frequency
f = 0.5 Hz
Maximum duty factor
DF = 50 %
Operations/h
1500
Inductive load with external suppressor circuit for each load (see section “Connecting
transistor outputs” on page 54)
g=1
Utilization factor
Relative duty factor
%
100
Max. switching frequency
Max. duty factor
Operations/h
Depends on the
suppressor
circuit
List of the function relays
Usable contacts
Contact type
Make
contact
Break
contact
EZ500
EZ700
Page
Analog value comparator
function relay
A
a
A1…A16
A1…A16
102
Counter relay contact
C
c
C1…C16
C1…C16
114
Text display function relay
D
D
D1…D16
D1…D16
134
7-day time switch function relay
Ö
ö
Ö1…Ö8
Ö1…Ö8
140
EZ input terminal
I
i
I1…I8
I1…I12
81
0 signal
I13
I13
Expansion status
–
I14
241
Short-circuit/overload
I16
I15…I16
238
89
Marker (auxiliary relay)
M
m
M1…M16
M1…M16
Marker (auxiliary relay)
N
N
N1…N16
N1…N16
Operating hours counter
O
O
O1…O4
O1…O4
145
Cursor button
P
p
P1…P4
P1…P4
87
MN05013003E
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Appendix
Contact type
Make
contact
Break
contact
EZ500
EZ700
Page
EZ output
Q
q
Q1…Q4
Q1…Q8
81
Expansion input terminal
R
R
–
R1…R12
81
Short-circuit/overload with
expansion
R
R
–
R15…R16
238
EZ output (expansion or S
auxiliary marker)
S
S
S1…S8
S1…S8
89
Timing function relay
T
t
T1…T16
T1…T16
150
Jump label
:
–
:1…:8
:1…:8
166
Year time switch
Y
Y
Y1…Y8
Y1…Y8
169
Master reset, (central reset)
Z
Z
Z1…Z3
Z1…Z3
176
(as
marker)
Available function relays
Relay
EZ display
EZ500
EZ700
Coil
function
Parame
ters
Analog value comparator
function relay
A
A1…A16
A1…A16
–
Counter relay contact
C
C1…C16
C1…C16
Text marker function relays
D
D1…D16
D1…D16
7-day time switch function
relay
Ö
Ö1…Ö8
Ö1…Ö8
–
Marker (auxiliary relay)
M
M1…M16
M1…M16
–
Marker (auxiliary relay)
N
N1…N16
N1…N16
–
Operating hours counter
O
O1…O4
O1…O4
EZ output relay
Q
Q1…Q4
Q1…Q8
–
EZ output relay expansion,
auxiliary marker
S
S1…S8
S1…S8
–
Timer function relay
T
T1…T16
274
(as
marker)
T1…T16
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MN05013003E
EZ500_700.book Page 275 Tuesday, May 3, 2005 5:15 PM
List of the function relays
Relay
EZ display
EZ500
EZ700
Coil
function
Parame
ters
Conditional jump
:
:1…:8
:1…:8
–
Year time switch
Y
Y1…Y4
Y1…Y4
–
Master reset, (central reset)
Z
Z1…Z8
Z1…Z8
–
Names of relays
Relay
Meaning of abbreviation
Function relay designation
Page
A
Analog value comparator
Analog value comparator
102
C
counter
Counter
114
D
display
Text display
134
Ö
(week, Software)
7-day time switch
140
O
operating time
Operating hours counter
145
T
timing relay
Timing relay
150
Y
year
Year time switch
169
Z
zero reset,
Master reset
176
Names of function relay
Function relay
coil
Meaning of abbreviation
Description
C
count input
Counter input, counter
D
direction input
Counter direction, counter
H
hold, stop
Stopping of timing relay, stop, timing relay
R
reset
Reset of actual value to zero, operating hours
counters, counters, text displays, timing relays
T
trigger
Timing coil, timing relay
MN05013003E
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Appendix
Name of function block inputs (constants, operands)
Input
Meaning of abbreviation
Description
F1
Factor 1
Gain factor for I1 (I1 = F1 × Value)
F2
Factor 2
Gain factor for I2 (I2 = F2 × Value)
HY
Hysteresis
Switching hysteresis for value I2 (Value HY applies to
positive and negative hysteresis.)
D
Day
Day
I1
Input 1
1st setpoint, comparison value
I2
Input 2
2nd setpoint, comparison value
S
Setpoint
Setpoint, limit value
Memory card attributes
276
Type of
memory card
EZ500
EZ700
read
write
read
write
M-32K
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Glossary
Analog input
The device EZ-AB, EZ-DA and EZ-DC are provided with the
two (EZ500) and four (EZ700) analog inputs I7, I8 and I11,I12.
The input voltage range is 0 V to 10 V. The measuring data is
evaluated with the integrated function relays.
Circuit diagram elements
As in conventional wiring, the circuit diagram is made up of
circuit elements. These include input, output and marker
relays, plus function relays and P buttons.
Connect mode
Connect mode is used to wire up the circuit elements in your
EZ circuit diagram.
Contact behavior
The contact behavior of any circuit element can be defined as
either a break contact or a make contact. Break contact
elements are identified by a line above the identifier
(Exception: jump).
Entry mode
Entry mode is used to input or modify values when creating
circuit diagrams or setting parameters, for example.
Function relays
Function relays can be used for complex control tasks. EZ
features the following function relays:
•
•
•
•
•
•
•
•
MN05013003E
Timing relay
7-day time switch
Year time switch
Counter, up/down, high-speed, frequency
Analog value comparator/threshold value switch
Operating hours counter
Master reset
Text marker relay
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Glossary
Impulse relay
An impulse relay is a relay which changes its switching state
and retains its new state (latched) when a voltage is applied
to the relay coil for a short time.
Input
The inputs are used to connect up external contacts. In the
circuit diagram, inputs are evaluated via contacts I1 to I12 and
R1 to R12.
EZ-AB, EZ-DA and EZ-DC can also receive analog data via
the inputs I7, I8 and I11, I 12.
Interface
The EZ interface is used to exchange and save circuit
diagrams to a memory card or PC.
Each memory card contains one circuit diagram and its
associated EZ settings.
The EZSoft software allows you to control EZ from your PC
which is connected using the EZ-PC-CAB cable.
Local expansion
I/O expansion with the expansion unit (e.g. EZ620-DC-TE)
installed directly on the basic unit. The connector is always
supplied with the expansion unit.
Memory card
The memory card is used to store your EZ circuit diagram,
together with its parameter and EZ settings. The data on the
memory card will be retained, even if the power supply fails or
is switched off.
The memory card is inserted into the interface slot on the EZ
device.
Mode
278
EZ has two operating modes: RUN and STOP. RUN mode is
used to process your circuit diagram (with the controller
running continuously). In STOP mode you can create your
circuit diagrams.
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MN05013003E
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Operating buttons
EZ has eight operating buttons. These are used to select
menu functions and create circuit diagrams. The large round
button in the middle is used to move the cursor.
DEL, ALT, ESC and OK all perform additional functions.
Output
You can connect various loads to the four EZ outputs, such as
contactors, lamps and motors. In the EZ circuit diagram the
outputs are controlled via the corresponding output relay coils
Q1 to Q8 or S1 to S8.
P buttons
The P buttons can be used to simulate four additional inputs
which are controlled directly by the four cursor buttons, rather
than via external contacts. The switch contacts of P buttons
are connected up in the circuit diagram.
Parameters
Parameters enable the user to set the behavior of a function
relay. Possible values include switching times or counter
setpoints. They are set in the parameter display.
Power supply
EZ-AB is supplied with an 24 V AC supply. The terminals are
labelled “L” and “N”.
EZ-AC is powered by AC voltage at 85 to 264 V AC, 50/60 Hz.
The terminals are labelled “L” and “N”.
EZ-DA is supplied with a 12 V DC supply. The terminals are
labelled +12 V and 0 V.
EZ-DC is powered by DC voltage at 24 V DC. The terminals
are labelled “+24 V” and “0 V”.
The terminals for the power feed are the first three terminals
on the input side.
MN05013003E
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Glossary
Remote expansion
I/O expansion with the expansion unit (e.g. EZ620-DC-TE)
installed up to 30 m away from the basic unit. The EZ200-EZ
coupling unit is fitted to the basic unit. The input and output
data is exchanged between expansion and basic unit via a
two-wire cable.
Retention
Data is retained even after the EZ power supply is switched
off (retentive data)
The following data is retentive:
•
•
•
•
•
•
EZ circuit diagram
Parameters, setpoint values
Texts
System settings
Password
Actual values of marker relays, timing relays, counters
(selectable)
Retentive data
See Retention.
Rungs
Each line in the circuit diagram is a rung. EZ500 and EZ700
can take 128 rungs.
280
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Index
7-day time switch
Compatibility of parameters .......................... 282
MN05013003E
A
Ambient conditions ............................................... 258
Analog
Comparing two values .................................. 114
Input ........................................................44, 277
Input power supply ......................................... 46
Input, resolution ............................................ 105
Setpoint potentiometer ................................... 47
Signals ............................................................ 45
Value comparator ......................................... 102
Value comparator, two-step controller .......... 112
Value scaling ................................................ 136
Analog input, power supply .................................... 46
AND circuit ........................................................... 179
Approvals ............................................................. 260
B
Basic circuit
Maintained contact ....................................... 179
Negation ...............................................178, 179
Parallel circuit ............................................... 180
Self-latching .................................................. 183
Series circuit ................................................. 179
Two-way circuit ............................................. 182
Basic circuits ........................................................ 178
Break contact .................................................76, 273
Inverting .......................................................... 83
Bus system ............................................................ 60
Button
ALT ................................................................. 68
DEL ................................................................. 68
OK ............................................................66, 74
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Index
Buttons ................................................................... 18
Buttons for circuit diagram editing .......................... 73
C
282
Cable cross-sections .............................................. 33
Cable lengths ......................................................... 39
Cable protection ...............................................33, 36
Cables .................................................................... 33
Changing channel (7-day time switch) ................. 141
Changing channel (year time switch) ................... 171
Changing the language ........................................ 205
Circuit diagram ....................................................... 75
Checking ......................................................... 88
Coil field .......................................................... 78
Contact fields .................................................. 78
Creation, error handling ................................ 252
Cycle ............................................................. 231
Deleting .......................................................... 71
Display ......................................................66, 78
Elements...... ................................................. 277
Enter ................................................................64
Evaluation.......................................................232
EZ operation................................................... 232
Fast entry ........................................................ 71
Grid ...........................................................66, 78
Internal processing ....................................... 231
Load ........................................80, 242, 247, 248
Operating buttons ........................................... 73
Overview ......................................................... 78
Rungs ............................................................. 78
Saving ............................ 80, 242, 245, 246, 248
Testing ......................................................69, 88
Wiring .......................................................68, 84
Clock accuracy ..................................................... 260
Clock battery backup time .................................... 260
Clock, backup time ............................................... 260
Coil ......................................................................... 76
Coil field ................................................................. 78
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MN05013003E
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Coil function
Contactor ........................................................ 90
Impulse relay .................................................. 93
Latching relay ................................................. 94
Negate ............................................................ 91
Overview ......................................................... 89
Commissioning ...................................................... 61
Comparator functions ........................................... 102
Compare function
Equal to ........................................................ 108
Greater than ................................................. 111
Greater than/equal to .................................... 110
Less than ...................................................... 106
Less than/equal to ........................................ 107
Two analog values ........................................ 114
Connect mode ...................................................... 277
Connecting
20 mA sensor ................................................. 49
AC voltage ...................................................... 34
Analog inputs .................................................. 44
Analog setpoint potentiometer ........................ 47
Brightness sensor .....................................47, 48
Bus system ..................................................... 60
Contactors and relays ..................................... 51
DC voltage ...................................................... 35
Digital input ..................................................... 42
Expansion device ........................................... 32
Frequency generators .................................... 49
High-speed counters ...................................... 49
Input ................................................................ 37
Neon bulbs ..................................................... 40
Output ............................................................. 51
Power supply .................................................. 33
Proximity switch .............................................. 42
Pushbutton actuators and switches ................ 42
Relay outputs .................................................. 52
Temperature sensor ....................................... 48
Connecting AC ....................................................... 34
MN05013003E
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Index
Connecting DC voltage .......................................... 35
Connecting frequency generators .......................... 49
Connecting the brightness sensor ......................... 48
Connecting the setpoint potentiometer .................. 47
Connection cross-sections ..................................... 33
Connections
Deleting .......................................................... 85
Contact .............................................................75, 80
Behavior ....................................................... 277
Fields .............................................................. 78
First ................................................................. 67
List of all ....................................................... 273
Contact type ........................................................... 83
Change ........................................................... 81
Cursor buttons ................................................ 87
Deleting .......................................................... 83
Enter ............................................................... 81
Inverting .......................................................... 68
Overview ......................................................... 76
Contactor function, inverse .................................... 91
Counter relay ....................................................... 114
Parameters ...........................................125, 130
Counter value automatic reset ............................. 119
Counter value manual reset ................................. 119
Counters ......................................................114, 119
Cascading ..................................................... 120
Counting frequency ...................................... 117
Frequency ..................................................... 122
High-speed .............................................49, 128
High-speed, circuit diagram evaluation ........ 232
Maintenance ................................................. 147
Operating hours ............................................ 145
Retentive actual value .................................. 121
Scan for actual value = zero ......................... 120
Unit quantities ............................................... 119
Counting unit quantities ....................................... 119
284
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Current
Input ..........................................................39, 44
Input current, increasing ................................. 41
Cursor buttons .................................................18, 87
Activate ......................................................... 220
Deactivate ..................................................... 221
See P buttons ............................................... 279
Cursor display ..................................................27, 74
Cycle .................................................................... 231
Cycle pulse ..................................... 91, 92, 184, 185
MN05013003E
D
Date setting .......................................................... 209
Delay times
For EZ-AB, EZ-DA, EZ-DC ........................... 237
For EZ-AC, EZ-AB ........................................ 236
For EZ-DA, EZ-DC ....................................... 234
Inputs and outputs ........................................ 234
Deleting retentive actual values ........................... 228
Detecting operating states ................................... 113
Device information ............................................... 230
Device version ..................................................... 250
Dielectric strength ................................................ 259
Dimensions .......................................................... 255
Display and operating unit ................................... 249
DST setting .......................................................... 210
E
Edge
Falling ........................................................... 185
Falling, evaluate ............................................. 91
Rising ............................................................ 184
Rising, evaluate .............................................. 92
Electromagnetic compatibility (EMC) ................... 259
Entry mode ........................................................... 277
Error handling
During circuit diagram creation ..................... 252
What happens If ...? ...................................... 251
With events ................................................... 254
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Index
Example circuits ................................................... 186
Expanding EZ ...................................................... 239
Expansion ............................................................ 239
Connecting ..................................................... 32
Detecting ...................................................... 240
Local ............................................................. 278
Monitoring ..................................................... 241
Remote ......................................................... 280
Transfer behavior ......................................... 240
Expansion units ...................................................... 57
EZ overview .......................................................15, 16
EZSoft ..............................................................80, 248
F
286
Fixing brackets ....................................................... 31
Flashing ............................................................... 162
Frequency counters ............................................. 122
Function block inputs, list of names ..................... 276
Function relays ...............................................75, 277
Counter, high-speed ..................................... 128
Counters ....................................................... 114
Example .......................................................... 96
Frequency counters ...................................... 122
List ................................................................ 273
List of all ....................................................... 274
List of names ................................................ 275
Master reset .................................................. 176
Operating hours counter ............................... 145
Overview ......................................................... 95
Parameters ................................................... 207
Retention ...................................................... 226
Text display .................................................. 134
Time switch ...........................................140, 169
Timing relays ................................................ 150
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MN05013003E
I
Improper use .......................................................... 11
Impulse relay ..........................................93, 184, 278
Input ..................................................................... 278
Analog resolution .......................................... 105
Analog, power supply ..................................... 46
Connecting ...............................................37, 42
Connecting analog inputs ............................... 44
Contact ........................................................... 81
Current ......................................................39, 44
Current, increasing ......................................... 41
Delay setting ................................................. 218
Delay times ................................................... 234
Expanding ....................................................... 57
Reaction time ................................................ 240
Technical data .............................................. 262
Terminals ........................................................ 81
Voltage range ...........................................39, 44
Inrush current limitation .......................................... 41
Inserting a new rung .............................................. 68
Inside ................................................................... 231
Installation .............................................................. 29
Interface .......................................................242, 278
Interference ............................................................ 39
Inverting ................................................................. 83
J
Jumps .................................................................. 166
L
Latching relay ......................................................... 94
LED display ............................................................ 21
List
Contacts ....................................................... 273
Function relays ............................................. 274
Relay ............................................................ 275
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Index
288
M
Main menu
Overview ......................................................... 22
Selection ......................................................... 19
Maintenance meters ............................................ 147
Make contact ..................................................76, 273
Inverting .......................................................... 83
Marker relay ...................................................89, 233
Markers .................................................................. 89
Master reset ......................................................... 176
Memory card ..........................................80, 244, 278
Deleting ........................................................ 247
Inserting ........................................................ 244
Reading ........................................................ 247
Writing .......................................................... 246
Menu
Changing menu level ...................................... 66
Changing the language ................................ 205
Guidance ........................................................ 18
Language setting ............................................ 62
Selecting main menu ...................................... 19
System menu selection .................................. 19
Message
INVALID PROG ....................................249, 252
System .......................................................... 251
Mode .................................................................... 278
Changing ........................................................ 69
Monitoring of expansion unit ................................ 241
Mounting ................................................................ 29
Screw fixing .................................................... 31
Top-hat rail ..................................................... 30
N
NAND circuit ........................................................ 180
Neon bulbs ............................................................. 40
NOT circuit ...................................................178, 179
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MN05013003E
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O
MN05013003E
Operating buttons ..........................................73, 279
Operating hours counter ...................................... 145
Operating modes ................................................... 63
Operating unit ...................................................... 249
Operation ...................................................18, 73, 74
OR circuit ............................................................. 180
Output .................................................................. 279
Connecting ..................................................... 51
Connecting relay outputs ................................ 52
Contact ........................................................... 81
Delay times ................................................... 234
Expanding ....................................................... 57
Reaction time ................................................ 240
Relay .............................................................. 81
Reset ............................................................ 177
Overload ................................................................ 56
Monitoring with EZ..-D.-T.. ............................ 238
Overview ................................................................ 12
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Index
P
290
P buttons .............................................................. 279
Activate ......................................................... 220
Activating and deactivating ........................... 220
Deactivate ..................................................... 221
See Cursor buttons ......................................... 87
Parameter display .................................................. 74
Timing relays ........................................125, 130
Parameters .......................................................... 279
Change ......................................................... 206
Changing the switching time ......................... 208
Display .......................................................... 207
Function relays ............................................. 207
Inhibit access ................................................ 207
Power flow display ........................................ 101
Password
Activate ......................................................... 202
Change ......................................................... 204
Deactivate, see Unlocking EZ ...................... 203
Deleting ........................................................ 204
Protection ..................................................... 199
Protection removal ........................................ 204
Scope ........................................................... 201
Setup ............................................................ 200
PC connection ...................................................... 248
Power flow display ...................................70, 88, 101
Power supply .................................................33, 279
AC voltage ...................................................... 34
Analog input .................................................... 46
DC voltage ...................................................... 35
Technical data .............................................. 261
Program ................................................................. 74
Proper use ............................................................. 11
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R
MN05013003E
Reaction time for I/O ............................................ 240
Reed relay contacts ............................................... 40
Relay ................................................................75, 80
Connecting analog outputs ............................. 52
Contactor function .......................................... 90
Impulse ........................................................... 93
List of all ....................................................... 275
Name .............................................................. 81
Negate ............................................................ 91
Number ........................................................... 81
Output, technical data ................................... 268
Reset .............................................................. 94
Set .................................................................. 94
Timing ........................................................... 150
Relay coil
Change ........................................................... 81
Coil function ..............................................81, 89
Deleting .......................................................... 83
Enter .........................................................69, 81
Relays
Overview ......................................................... 77
Reset ...................................................................... 94
Reset markers ...................................................... 177
Reset, master ....................................................... 176
Retention ......................................................226, 280
Memory ......................................................... 260
Permissible markers and function relays ...... 226
Retention (non-volatile data storage) ................... 226
Retentive actual value, deleting ........................... 228
Retentive behavior
On circuit diagram transfer ........................... 229
Setting .......................................................... 226
Transfer ........................................................ 228
RUN, start behavior ............................................... 63
RUN/STOP changeover ......................................... 69
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Index
Rungs ................................................................... 280
Add new .......................................................... 68
Change ........................................................... 84
Creating .......................................................... 84
Deleting .......................................................... 86
Insert ............................................................... 86
Position in circuit diagram ............................... 78
Running light ........................................................ 192
S
292
Scaling ................................................................. 136
Selecting the System menu ................................... 19
Self-latching ......................................................... 183
Sensor (20 mA) connection ................................... 49
Set .......................................................................... 94
Setpoints .............................................................. 207
Setting summer time rule ..................................... 211
Setting the cycle time ........................................... 225
Setting the time .................................................... 209
Settings ................................................................ 199
Shift register ......................................................... 188
Short-circuit ............................................................ 56
Monitoring with EZ..-D.-T.. ............................ 238
Signals, analog ...................................................... 45
Single pulse ......................................................... 161
Stairwell lighting ................................................... 194
Star-delta starting ................................................. 186
Startup behavior ...........................................221, 223
After the circuit diagram is deleted ............... 222
Basic setting .........................................222, 224
Card .............................................................. 223
Possible faults .............................................. 223
Setting .......................................................... 221
With upload/download to card or PC ............ 222
Status display ...................................................19, 20
Status image register ........................................... 232
Switch contact ........................................................ 80
Contact name ................................................. 81
Contact number .............................................. 81
Switching on ........................................................... 61
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MN05013003E
T
Target readership ................................................... 11
Technical data ...................................................... 258
General ......................................................... 258
Inputs ............................................................ 262
Power supply ................................................ 261
Relay output ................................................. 268
Transistor output ........................................... 270
Temperature sensor connection ............................ 48
Terminals ............................................................... 33
Text display .......................................................... 134
Threshold value switch ........................................ 102
Tightening torque ................................................... 33
Time switch .......................................................... 140
7-day ............................................................. 140
Changing channel .................................141, 171
Examples ...................................................... 142
Year .............................................................. 169
Timing relays ........................................................ 150
Flashing ........................................................ 162
Off-delayed ................................................... 157
On/off delayed .............................................. 159
On-delayed ................................................... 155
Operating modes .......................................... 152
Single pulse .................................................. 161
Time units ..................................................... 152
Top-hat rail ............................................................. 30
Transfer behavior, expansion devices ................. 240
Transfer cable ...................................................... 248
Transistor output, technical data .......................... 270
Two-step controllers ............................................. 112
Two-wire proximity switches .................................. 41
Type reference ....................................................... 17
U
Unlocking EZ ........................................................ 203
Use, improper ........................................................ 11
Use, proper ............................................................ 11
Using a mounting plate .......................................... 31
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Index
294
V
Value entry ............................................................. 18
Voltage range, input .........................................39, 44
W
Weekday setting .................................................. 209
What happens If ...? ............................................. 251
Wiring ..................................................................... 73
Backwards .................................................... 233
Deleting .......................................................... 68
Enter ............................................................... 68
Wiring rules ............................................................ 90
X
XOR circuit ........................................................... 182
Y
Year time switch ................................................... 169
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EZ500_700.book Page 2 Tuesday, May 3, 2005 5:15 PM
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Publication No. MN05013003E
April 2005