EC3-D72 (PA

EC3-D72 (PA
EC3-D72 with TCP/IP
Communication Capability
Instruction Sheet
PA-00368
June 2013
EC3-D72 with TCP/IP Communication Capability
EC3-D72 is the superheat controller with TCP/IP connection for stepper motor driven Electrical Control Valves EX4...EX6 and is optimized
to operate with the Copeland Digital Scroll series utilising a 0-10V input
from a third party controller. The controller synchronises the PWM digital
compressor solenoid valve with the superheat controlled by the electrical
control valve; EX series.
Note: This document contains short form instructions for
experienced users.
SAFETY INSTRUCTIONS
• Read installation instructions thoroughly. Failure to comply can result in
device failure, system damage or personal injury.
• The product is intended for use by persons having the appropriate
knowledge and skills.
• Disconnect all voltages from system before installation.
• Do not operate system before all cable connections are completed.
• Comply with local electrical regulations when wiring.
Note: The EC3-D72 series contains a lead, acid gel rechargeable battery. The battery must NOT be disposed of with other commercial waste.
Instead, it is the user’s responsibility to pass it to a designated collection
point for the safe recycling of batteries (harmonised directive 98/101/
EEC). For further information contact your local environmental recycling
center.
EC3-D72
MOUNTING
• The EC3-D72 is designed to be mounted onto a standard DIN rail.
ELECTRICAL INSTALLATION
• Refer to the electrical wiring diagram for electrical connections.
• Do not apply voltage to the controller before completion of wiring.
• Ground the metal housing with a ¼” spade connector.
• Important: Keep controller and sensor wiring well separated from
mains wiring. Minimum recommended distance 1.2”.
WARNING: Use a class II category transformer for 24VAC power supply.
Do not ground the 24VAC lines. We recommend using individual transformers for EC3 controller and for 3rd party controllers to avoid possible
interference or grounding problems in the power supply. Connecting any
EC3 inputs to mains voltage will permanently damage the EC3.
WIRING
TECHNICAL DATA
Power supply . . . . . . . . . . . . 24VAC ±10%; 50/60Hz; 1A
Power consumption. . . . . . . . 25VA max. including EX4 … EX6
Plug-in connector. . . . . . . . . Removable screw terminals wire size 0,14 .. 1,5 mm2
Grounding. . . . . . . . . . . . . . . 6,3 mm spade earth connector
Protection class . . . . . . . . . . IP20
COM, TCP/IP connection. RJ45 Ethernet
Connection to optional . . . . . ECC-N30 or CAT5 cable with RJ45 connectors
local ECD-002
Digital Input; . . . . . . . . . . . . . 0/24VAC/DC for stop/start function. EX valve closes
Cooling demand
during stop command. Typically thermostat or third
party controller.
Digital Input; . . . . . . . . . . . . 0/24VAC/DC typically connected to auxiliary connection.
Comp2 running
EX valve control loop remains active when input is 24V
and the digital scroll is idle.
NTC input; Coil-out . . . . . . . . Emerson temperature sensor ECN-N60 or ECN-P60
temperature sensor
4-20 mA Analog input. . . . . . Emerson PT5-07M / PT5-18M / PT5-30M
4-20 mA Analog output. . . . . For connection to any 3rd party controller with 12/24VDC
Deviation from input signal power supply and appropriate burden ±8% max
Output alarm relay................. SPDT contact 24V AC/DC, 2 Amp inductive load
(If L2 = 1)........... Activated:.... During normal operation (no alarm condition)
Deactivated:.... During alarm condition or power supply is OFF
Output pump down relay........ SPDT contact 24V AC/DC, 2 Amp inductive load
(If L2 = 1)........... Activated:.... During normal operation
Deactivated:.... All other conditions
WARNING: If the output relays are not utilized, the user must ensure appropriate safety
precautions are in place to protect the system against damage caused by a power failure.
Output Digital Scroll............... 24V or 230V AC output to activate PWM valve on Digital Scroll
t Triac
Stepper motor output . . . . . . Maximum current 0.6A with nominal 24VDC operating voltage
for EX4…EX6
Ambient temperature . . . . . . 32 – 140°F
range
34 – 77°F (for best battery life time)
> 95°F; battery life time < 2 years
In order to provide system protection in the event of power loss, it is recommended to
change the battery annually.
EmersonClimate.com/FlowControls
A: White B: Black C: Blue D: Brown
E:M12 Plug cable assembly
EX5-Nxx for connection to EX4/EX5/EX6
F:24V/230V Triac output to
PWM Digital Scroll valve
G:Remote control panel, system controller
H:Alarm relay, dry contact. Relay coil is not
energised at Alarm or power off
WARNING: The use of the relay is essential
to protect the system in case of power
failure if the communications interface or
the ECD-002 are not utilized..
I: Digital input 1: “Cooling demand”
(Digital compressor run: (0V/open =
Stop; 24V/closed = Control Start;)
J:Transformer Class II, 24VAC secondary /
25VA min. Model ECT-323
K:Third party controller (can use the suction
pressure (4-20mA) analog output signal
from EC3)
L:Pump down relay, dry contact. Relay is
energized during normal operation.
M:.Digital input 2: “Comp. 2 running” (0V/
open = Comp2 stop; 24V/closed =
Comp2 running
N:Discharge Temp. Sensor
O:0-10V Digital Scroll capacity
demand signal from system
controller
P:ECN-N60 Coil out sensor
Digital input status is dependent to operation of compressor/0-10V input
System
Operating Condition
Comp. 1 &
Comp.2 in
stop mode
Digital
Inputs
“Cooling demand”
open (0V)
“Comp 2 Running”
open (0V)
0-10V Input from
Third Party Controller
ECV remains closed irrespective
of voltage input value
Comp. 1 in run
“Cooling demand”
& Comp. 2
closed (24V) / in stop mode
“Comp 2 Running”
open (0V)
ECV active
Input =0V: digital valve capacity at
10% default capacity.
When the digital comp. is in by-pass
the ECV will: Close when capacity is <70%
Be inhibited when the capacity is >70%
Comp. 1
& Comp. 2
in run mode
ECV active
The ECV will always modulate even
when the digital compressor is in
by-pass mode.
“Cooling demand”
closed (24V) / “Comp 2 Running”
closed (24V)
Comp. 1 in stop
“Cooling demand” ECV remains closed irrespective of
& Comp. 2
open (0V) / voltage input value.
in run mode starts
“Comp 2 Running”
closed (24V)
Digital comp. should always be regarded as base load; compressor 1
PREPARATION FOR START-UP
• Vacuum the entire refrigeration circuit.
WARNING: Electrical Control Valves EX4...EX6 are delivered at half open
position. Do not charge system before closure of valve.
• Apply supply voltage 24V to EC3 while the cooling demand digital input
is 0V (open). The valve will be driven to close position.
• After closure of valve, start to charge the system with refrigerant.
POSSIBILITIES OF CONNECTING EC3-D72 TO A NETWORK OR PC
A TCP/IP Controller Readme file is available on the www.emersonclimate.
eu website to provide detailed information about TCP/IP Ethernet connectivity. Please refer to this file if you need information beyond the contents
of this instruction sheet.
1) Connect the EC3-D72 using the optional ECC-N30 cable assembly or
a standard CAT5 network cable with RJ45 plugs assembly to a network
or router that enables the controller to receive a dynamic TCP/IP address or
2) Connect the EC3-D72 to a computer using a crossover cable plugged
directly into the Ethernet port. In this case, the TCP/IP address of the
computer must be manually modified to be compatible with the default
address of the controller. Refer to the TCP/IP Controller-Readme file
for more details.
The Monitoring and Alarm WebPages are read only and therefore it is not
necessary to enter a username or password. A username and password
will be requested upon the initial request to any of the other WebPages.
The factory default settings are :
Username: “EmersonID” , Password: “12”
The default settings may be modified on the Display configuration page.
Press the tabs at the top of the Monitoring page with a left click of the
mouse button to enter the respective Webpage.
The parameters will be visualised in real text together with the program
code as defined in the parameter list below.
After the parameters have been modified, the complete list of settings can
be saved to the memory of the computer and used later to upload into
another controller. This can save a considerable amount of time when using multiple controllers and over a period of time, a library can be created
containing the parameter lists for equipment for different applications.
It is also possible to display live graphical data from the controller.
Superheat, evaporating pressure, coil-out temperature and evaporating
temperature are available on a 10 minutes rolling chart. Refer to the TCP/
IP Controller-Readme file for a complete description of the features available for the TCP/IP series of controllers.
ECD-002 DISPLAY/KEYPAD UNIT (LEDs and Button Functions)
SETTING AND VISUALIZING DATA: WEBPAGES (RECOMMENDED METHOD)
Important: Make sure that cooling demand input is 0V (open). Turn the
power supply ON.
Four parameters i.e. refrigerant type (u0), pressure sensor type (uP),
valve type (ut) and control mode can be set only when cooling demand
digital input is open (0V) and the power supply is ON (24V). This feature is
for added safety to prevent accidental damage of compressors and other
system components. All other parameters can be modified at any time.
The EC3-D72 has a TCP/IP Ethernet communication interface enabling
the controller to be directly connected to a network or a PC via the standard Ethernet port. The EC3-D72 controller has embedded WebPages to
enable the user to visualise the parameter lists using real text labels.
To view WebPages on the PC, a standard WebBrowser like Internet Explorer® or Mozilla Firefox and JRE Java Runtime Environment is needed.
JRE can be downloaded at no charge from the www.java.com website.
Open the Internet browser program on the computer and, if EC3-D72 is
connected directly to PC with a crossover cable enter the default TCP/
IP address of the controller (192.168.1.101) into the address line, or the
dynamic address from the DHCP server from network/Router. Refer to the
TCP/IP Controller-Readme file if a specific port is required.
It is possible to identify the dynamic TCP/IP address assigned by DHCP of
the Router or network, refer to the TCP/IP Controller-Readme file.
After a few moments, the default monitoring page should be displayed.
If the browser does not open the default page or display active data, the
user should check the Internet browser “Option” configuration. Refer to the
TCP/IP Controller-Readme file.
2
ALTERNATIVE PROCEDURE FOR PARAMETER MODIFICATION USING ECD-002
Note: Some of the functions/parameters (manual control and TCP/IP
configuration) cannot be modified when using ECD-002 comparing to a
set-up by PC via TCP/IP. Warning: All alarms are disabled during manual
control. We do not recommend unattended operation of system during
manual control.
The parameters can be accessed via the 4-button keypad. The configuration parameters are protected by a numerical password. The default
password is “12”. To select the parameter configuration:
• Press the PRG button for more than 5 seconds
A flashing 0 is displayed
• Press or until the password is displayed (default 12).
If the password was changed, select the new password
• Press SEL to confirm password
• Press or to show the code of the parameter that has to be changed;
• Press SEL to display the selected parameter value;
• Press or to increase or decrease the value;
• Press SEL to temporarily confirm the new value and display its code;
Repeat the procedure from the beginning "press or to show..."
To exit and save the new settings:
Press PRG to confirm the new values and exit the parameters
modification procedure.
To exit without modifying any parameters:
Do not press any button for at least 60 seconds (TIME OUT).
LIST OF PARAMETERS IN SCROLLING SEQUENCE BY PRESSING
BUTTON
Factory Field
Code Parameter description and choices
Min
Max setting setting
H5 Password
1 19912
u0
System refrigerant
074
0 = R22; 1 = R134a; 2 = R507; 3 = R404A; 4 = R407C;
5 = R410A; 6 = R124; 7 = R744 (subcritical application)
uP
Installed pressure sensor type
0
2
0
0 = PT5-07M (for R22/R134a/R507/R404A/R407C/R124)
1 = PT5-18M (for R410A)
2 = PT5-30M (for R744, subcritical)
ut
Installed valve type
1
3
2
1 = EX4; 2 = EX5; 3 = EX6
uu
Start valve opening (%)
10
100
50
u9
Start opening duration (second)
1
30
5
uL
Low superheat alarm function
0
2
1
0 = disable (for flooded evaporator)
1 = enable auto reset
2 = enable manual reset
Cut-out at 0.5K (if it maintains 1 min.); Cut-in immediately at 3K
u5
Superheat set-point (°F)
If uL enabled (auto or manual)
5.4
54
10.8
If uL disabled
0.9
54
10.8
u2
MOP function
011
0 = disable
1 = enable
u3
MOP set-point (°F) saturation temperature*
*
X
Factory setting is according to selected refrigerant (u0):
+55°F for R22; +59°F for R134a: +45°F for R507
+45°F for R404A; +59°F for R407C; +59°F for R410A
+122°F for R124; +23°F for R744
┌┘5
Units conversion
0
1
0
0 = °C, K, bar; 1 = °F, R, psig
(Psig values are divided by 10. Example: Display 12.5 is 125 psig)
┌┘1
Value to show
0
4
0
0 = Measured superheat (°F); 1 = Measured evaporator pressure (psig)
2 = Valve opening (%); 3 = Measured coil-out temp. (°F)
4 = Calculated evaporating temperature (°F) from the pressure
5 = Compressor capacity in %
u4
Superheat control mode
0
1
0
0 = Standard, 1 = Slow
uH
High superheat alarm function
0
1
0
0 = disable, 1 = enable auto reset
uA
High superheat alarm setpoint
16
40
30
ud
High superheat alarm delay, min.
1
15
3
P2
Freeze protection cut-out, °F
-40
104
-32
P3
Freeze protection cut-in, °F
-35
109
37
P4
Freeze protection alarm function 0
2
0
0 = disable, 1 = enable auto-reset,
2 = enable manual reset
P5
Freeze protection alarm delay, sec.
5
199
30
P6
Pump-down function
0 = disable, 1 = enable auto-reset
0
1
0
P7 Pump-down cut-out, psig
-7.3 261.1
7.2
P8
Pump-down time delay, sec.
0
199
30
P9
Low pressure alarm function
0
2
0
0 = disable, 1 = enable auto-reset, 2 = enable manual reset
PA
Low pressure alarm cut-out, psig
-11.6 256.7
0
Pb
Low pressure alarm delay, sec.
5
199
5
Pd
Low pressure alarm cut-in, psig
-7.3 261.1
4.3
LIST OF PARAMETERS IN SCROLLING SEQUENCE BY PRESSING
BUTTON
Factory Field
Code Parameter description and choices
Min
Max setting setting
L2
Output logic
031
0: Alarm & pump down. = normal; 1: Alarm = inverse, pump down. = normal
2: Alarm = normal, pump down. = inverse; 3: Alarm & pump down. = inverse
b1
Battery error management, 0
when battery is defective, see below:
Value Alarm display Alarm relay
Valve
0
-
-
Regulating
1
Ab
-
Regulating
2
Ab
Signalling Fully close
3
Ab (blinking)
Signalling Fully close
3
2
*
Reset possibility after
recovery/replacement
Auto
Manual
WARNING: When setting b1 to option 0 or 1, the user must ensure appropriate
safety precautions are in place to protect the system against damage caused by a
power failure.
Factory Field
Code Parameter description and choices
Min
Max setting setting
/6
Show decimal point; 0=yes, 1 = no
0
1
0
A6
Maximum discharge temperature; °F
212
284
266
A7
Discharge temp. alarm delay; sec.
0
199
30
F2
Minimum capacity; %
10
100
10
F3
Maximum capacity; %
10
100
100
F6
Scroll Valve, PWM cycle time; sec.
10
20
20
t3
Monitor discharge temperature sensor
0
1
0
0 = no, 1 = Yes
ru
0-10V input filtering; 0 = off, 1 = on
0
1
* Min. and Max. setting values are dependent upon selected type of refrigerant.
Control (Valve)
Start-Up Behavior
(Parameter uu and u9)
PUMP DOWN FUNCTION (IF P6=1 AND L2=1)
Cooling
Alarm
Demand Status
Condition
24V (ON)
NO
0V (OFF)
NO
0V or 24V
YES
Pump Down Relay
Activate
Deactivate when pressure drops below
P7 and after elapsed time P8
Deactivate instantaneously
START-UP
Start the system and check the superheat and operating conditions. The
EC3-D72 is fully functional without connected PC or keypad/display unit.
ECD-002.
MOUNTING OF ECD-002
SPECIAL FUNCTIONS
Special Functions can be activated by:
• Press and together for more than 5 seconds.
A flashing 0 is displayed.
• Press or until the password is displayed (default = 12).
If password was changed, select the new password.
• Press SEL to confirm password
A 0 is displayed and the Special Function mode is activated.
• Press or to select the function. The number of special functions is
dynamic and controller dependent. See list below.
0: Reset controller to factory settings (this action is possible only when
digital input is 0V i.e. open)
1: Displays the current TCP/IP address
2: Assign temporary 192.168.1.101 as TCP/IP address if EC3-D72 has
different address
• Press SEL to activate the function without leaving the special function
mode.
• Press PRG to activate the function and leave the special function mode.
3
ECD-002 can be installed at any time also during operation.
• ECD-002 can be mounted in
panels with 2.8 x 1.1 inch cutout
• Push controller into panel cut-out.(1)
• Make sure that mounting lugs are
flush with outside of controller housing
• Insert Allen key into front panel holes and turn
clockwise. Mounting lugs will turn and gradually
move towards panel (2)
• Turn Allen key until mounting lug
barely touches panel. Then move
other mounting lug to the same
position (3)
• Tighten both sides very carefully until keypad is secured.
Do not over tighten as mounting lugs will break easily.
ERROR/ALARM HANDLING
Alarm
Related
Alarm
code
Description
parameter relay
Valve
What to do?
Requires manual
reset after
resolving alarm
E0
Pressure transmitter error
-
Signalling Fully close Check wiring connection and measure the signal 4 to 20 mA
E1
Coil-out temperature sensor error
-
Signalling Fully close Check wiring connection and measure the resistance of sensor
E3
Discharge temp. -
Signalling Regulating Check wiring connections and measure the resistance of
sensor error
the sensor. Also check the status of the I/O configuration (t3)
AII
EX4 – EX6 electrical connection error
-
Signalling
-
Check wiring connection and measure the resistance of winding
Ab
b1: 1
-
Regulating Battery potentially does not have enough charge to close valve in case of main
power supply interruption. May occur temporarily with new controllers or after
Ab
Battery error
b1: 2
Signalling Fully close long storage but should disappear when battery is charged sufficiently
(allow 10hrs). If Ab remains active even when battery is charged, battery
Ab blinking
b1: 3
Signalling Fully close may be defective and should be replaced. (Replacement kit: 097693).
AE blinking
Pump down action
P6: 1
Signalling Already closed Allocate the source, which does not let suction pressure drops
can not accomplished
by Pumpdown below desired set-point
command
AF
P4: 1
Signalling Fully close Check the system for cause of low pressure such as insufficient
AF blinking
Freeze protection
P4: 2
Pumpdown load on evaporator
deactivated
AL
uL: 1
Signalling Fully close Check wiring connection and operation of valve
AL blinking
Low superheat (<0,5K)
uL: 2
Pumpdown
deactivated
AH
High superheat
uH: 1
Signalling Fully close Check the system
Pumpdown
deactivated
AP
Low pressure
P9: 1
Signalling Fully close Check the system for cause of low pressure such as refrigerant loss
AP blinking
P9: 2
Pumpdown
deactivated
dA
High discharge temp.
A6: alarm setpoint Signalling Fully close Check the system
Pumpdown
deactivated
Er
Data error display – -
-
-
Data send to the display is out of range. Check temperature and
out of range
pressure sensor.
Note: When multiple alarms occur, the highest priority alarm is displayed until being cleared, then the next highest alarm is displayed
until all alarms are cleared. Only then will parameters be shown again.
No
No
No
Yes
Yes
No
Yes
No
Yes
No
No
Yes
No
Fixed differential
= 10°C
No
Message
---No data to display
The display will show an “---” at start up and when no data is being sent to the ECD-002
CHECKING SYSTEM OPERATING CONDITIONS USING LOCAL DISPLAY/KEYPAD ECD-002
The data to be permanently shown on the display can be selected by
the user (parameter ┌┘1). It is possible to temporarily display these
values. However this function is not available in an alarm condition.
The display will show for one second the numerical identifier of the data
(see ┌┘1 parameter) and then the selected data. After 5 minutes, the
display will return to the value selected by parameter ┌┘1.
SERVICE/TROUBLESHOOTING
SYMPTOM
CAUSE
ACTION
Operating superheat is several degrees
Incorrect signal from pressure
1- Check the sensors
higher or lower than set-point
or temperature sensors
2- Make sure ECN-N60 temperature sensor is used
3- For optimum accuracy, please use:
PT5-07M for R22/R134a/R507/R404A/R407C/R124
PT5-18M for R410A
PT5-30M for R744
4- Make sure the sensor cables are not installed along with other high voltage cables
Operating superheat is too low;
1- Incorrect wiring of ECV
1- Check the wiring
i.e. compressor wet running
2- Defective sensors
2- Check the sensor
Valve is not fully closed
1- The cooling demand digital 1- Valve is shut off only when the digital input is turned off (0V)
input is ON (24V)
2- Wrong ECV selected
2- Check the setting of parameter ut
Unstable superheat (hunting)
Evaporator is designed to operate Increase the superheat set-point to a higher value; if system is stable,
at higher superheat start decreasing gradually, checking each time for a stable control
Valve opens when EC3 commands
Wrong wiring between EC3-D72 Check the wiring and obey the color coding: white/black, blue/brown
to close and vice versa
and valve
Superheat set-point is shifting after several Stepper motor driven valves
Do not apply permanent 24V digital input. Interrupt digital input once
months of uninterrupted operation or require synchronization
every week for 5 seconds if compressor never stops. This has the
permanent jumper of 24V digital input
effect of referencing the valve to the fully closed position
DIMENSIONS (IN INCHES)
ECD-002
EmersonClimate.com/FlowControls
EC3-D72
4
Technical Support: 1-866-625-8416
PA-00368 (06/13) Emerson is a trademark of Emerson Electric Co. ©2013 Emerson Climate Technologies, Inc. All rights reserved.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement