IC697MDL252

IC697MDL252
1
Discrete Input Modules
36
IC697MDL252
12 Volt AC, 32-Point Input Module
GFK-0756D
August 1997
Discrete Input Modules
12 Volt AC, 32-Point Input Module (IC697MDL252)
datasheet GFK-0756D
Features
a45146
D 32 Points - Four isolated groups of 8 points each
D 20 ms input filter
D Proximity switch compatible
A1
A2
A3
A4
A5
A6
A7
A8
Functions
The 12 volt AC Input module provides 32 input points
in four isolated groups of eight points each. This allows
each group of eight points to be used on a different
phase of the AC supply.
The input is resistive with current-voltage characteristics which meet IEC standard (type 1). The input characteristics are compatible with a large range of available
proximity switches.
LED indicators which give the ON-OFF status of each
point on the logic (PLC) side of the circuit are included
at the top of the module.
The module is mechanically keyed to ensure correct replacement with a similar type in the field. I/O references are user configurable without the use of jumpers
or DIP switches on the module.
Configuration is done using the configuration function
of the MS-DOSr or Windows programming software
running on Windowsr 95 or Windows NTr over Ethernet TCP/IP or through the SNP port. The Programming
Software configuration function is installed on the programming device. The programming device can be an
IBM XT, AT,PS/2 or compatible Personal Computer.
B1
B2
B3
B4
B5
B6
B7
B8
C1
C2
C3
C4
C5
C6
C7
C8
FUSE
INPUT
12VAC
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
C1
C2
C3
C4
C5
C6
C7
C8
D1
D2
D3
D4
D5
D6
D7
D8
SLOT
D1
D2
D3
D4
D5
D6
D7
D8
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î
Î Î
Î
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
C1
C2
C3
C4
C5
C6
C7
C8
D1
D2
D3
D4
D5
D6
D7
D8
FUSE
10MA/PT
50/60 HZ
1
2
3
4
5
6
7
8
9
A1
A2
A3
A4
A5
A6
A7
A8
H
~
N
10
11
B1
12
13
14
15
16
17
18
19
B2
B3
B4
B5
B6
B7
B8
H
~
N
20
21
22
23
24
25
26
27
28
29
C1
C2
C3
C4
C5
C6
C7
C8
H
~
N
30
31
32
33
34
35
36
37
38
39
D1
D2
D3
D4 H
D5
D6 N
D7
D8
~
40
MODULE IC697MDL252
LABEL 44A726758–027R01
r IBM and PS/2 are registered trademarks of International Business Machines Corporation.
r MS-DOS, Windows, Windows 95, and Windows NT are registered trademarks of Microsoft Corporation.
t
Series 90 -70 Programmable Controller Data Sheet Manual
GFK-0600F
36-1
Discrete Input Modules
2
GFK-0756D
August 1997
12 Volt AC, 32-Point Input Module
Operation of the 12 VOLT AC Input Module
LED
OPTO
ISOLATOR
H
a45148
FILTER
SYSTEM
INTERFACE
BACKPLANE
~
N
USER COMMON (8 CIRCUITS)
FIELD
CONNECTIONS
MODULE
Figure 1. Block Diagram for IC697MDL252
Input Characteristics
The 12 Volt AC Input Module is compatible with a wide
variety of input devices, such as:
D Pushbuttons, limit switches, selector switches
D Electronic proximity switches, both 2-wire and
Two-wire proximity switches derive their power from the
signal connections; thus both the ON state voltage and the
OFF state leakage current are higher than for 3-wire devices.
This module is designed to be compatible with many of these
two–wire devices; however each device type must be carefully evaluated for compatibility in both the ON and OFF
states.
The input circuitry provides sufficient current to ensure reliable operation of the switching device. Input current is typically 10mA in the ON state, and can accept up to 2 mA leakage current in the OFF state without turning on.
To determine compatibility with a specific proximity switch,
find the ON state characteristics of the switch in the diagram
shown below in Figure 2. If that point falls to the left of the
input load line, the ON state characteristics are compatible.
As an example, the ON state requirements of a compatible
proximity switch of 3mA at 5 volts drop are shown below.
Three-wire proximity switches are easily applied, since they
provide low voltage drop in the ON state and low leakage
current in the OFF State.
OFF state compatibility is assured if the proximity switch
leakage is less than 2mA with a module input voltage of 2.5
volts or less.
3-wire
a44138
10
15V SUPPLY
8
ON–STATE
VOLTAGE
ACROSS
PROXIMITY
SWITCH
6
OPERATIONAL
NON–OPERATIONAL
4
10V SUPPLY
2
0
0
2
4
6
I LOAD (mA)
8
10
Figure 2. Proximity Switch Compatibility
36-2
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Series 90 -70 Programmable Controller Data Sheet Manual
GFK-0600F
Discrete Input Modules
3
GFK-0756D
August 1997
12 Volt AC, 32-Point Input Module
Module Power
The 12 Volt AC Input Module requires 0.30 amps from
the 5 volt bus on the backplane.
a42143
TERMINALS
1
3
When the module is first installed, the key latches onto
the backplane center rail. When the module is extracted, the key remains in the center rail, configuring
the slot to accept only identical module types.
5
A4
H
~
A5
6
7
A6
N
A7
8
9
10
11
A8
B1
12
B2
13
B3
14
If it is necessary to change the module location in the
rack after the key has been latched onto the center rail
of the rack, the key can be removed by pushing it upward to unhook the latch while pulling it off the rail. It
may then be reinserted onto the module and the module inserted into the rack in the desired location. Note
that only the power supply can be placed in the leftmost
rack position.
A2
A3
4
This module includes a mechanical key that prevents inadvertent substitution of one module type for another
in a given slot. The key fits a uniquely shaped area on
the board below the connector. The key is included with
each module.
ÎÎ
ÎÎ
Î
ÎÎ
Î
ÎÎ
ÎÎ
ÎÎ
Î
ÎÎ
Î
ÎÎ
Î
ÎÎ
ÎÎ
Î
ÎÎ
ÎÎ
Î
ÎÎ
Î
ÎÎ
ÎÎ
ÎÎ
ÎÎ
ÎÎ
Î
ÎÎ
Î
Î
Î
ÎÎ
ÎÎ
Î
ÎÎ
Î
ÎÎ
ÎÎ
ÎÎ
Î
Î
ÎÎ
ÎÎ
ÎÎ
ÎÎ
ÎÎ
Î
Î
ÎÎ
A1
2
Module Mechanical Keying
FIELD WIRING
15
B4
H
~
B5
16
17
B6
N
B7
18
19
20
21
B8
C1
22
C2
23
C3
24
Field Wiring
The module is wired as shown in the illustration on the
right of this page. Since each group of eight inputs is isolated from the others, a wire from the power source to
the power input terminal for each group (terminal
number 10, 20, 30, or 40) is required (power input terminals for each group are not connected inside the module).
The detachable field wiring terminal board will accept
wire sizes from #22 (0.36 mm2) through #14 (2.10
mm2). Two wires may be terminated on a given lug if
both wires are the same size. There is room for a bundle
of forty #14 (2.10 mm2)wires to be routed out through
the terminal board cavity.
25
C4
26
C6
27
~
N
C7
28
29
30
31
C8
D1
32
33
D2
D3
34
35
D4
H
~
D5
36
37
D6
N
D7
38
39
40
H
C5
D8
The wire bundle can be secured to the terminal board by
passing a cable tie through a cleat located at the lower
corner of the terminal board.
Figure 3. Field Wiring Connections
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Series 90 -70 Programmable Controller Data Sheet Manual
GFK-0600F
36-3
Discrete Input Modules
4
GFK-0756D
August 1997
12 Volt AC, 32-Point Input Module
Recommended Field Wiring Procedures
The following procedures are recommended when connecting field wiring to the detachable terminal board on this input
module. Module features referenced in the following procedures which are common to all I/O modules for the IC697
PLC are illustrated in the following figure.
a43855
JACKSCREW
HINGED
DOOR
TERMINAL
BOARD
CORD
TIE
ÎÎ
ÎÎ
CORD
TIE
CLEAT
ÎÎ
ÎÎ
Î
JACKSCREW
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ Î
ÎÎ
ÎÎ
CORD
TIE
CLEAT
CORD
TIE
STRAP
CLEAT
Î
Î
ÎÎ
ÎÎ
STRAP
STRAP
Figure 4. I/O Module Features
1. Turn off power before removing or installing terminals boards. Open the hinged door on the module to access a jackscrew which holds the terminal
board securely in place. The Detachable field wiring terminal board can now be removed from the
module by turning the jackscrew counter-clockwise until it is fully disengaged.
2. To remove the terminal board, grasp the top of the
terminal board and swing it outward as shown in
Figure 5.
Caution
Do not use the hinged door to remove the
terminal board. The hinged door could
be damaged if this is done.
36-4
3. The terminal board is designed to accept wire sizes
from AWG #22 (0.36 mm2) through AWG #14 (2.10
mm2). It is important that when using AWG #14
wire for wiring all points, that a maximum insulation
diameter of .135 inch (3.43 mm) not be exceeded. To
ensure proper connection, two wires may be terminated on any one terminal only if both wires are the
same size.
4. The terminal board is designed to accept a maximum of (40) AWG #14 (2.10 mm2)wires. If AWG
#14 (2.10 mm2)wires are to be used, then wire
markers should be placed at least 8 inches (203
mm) from termination end to provide sufficient
space for the hinged door to close.
t
Series 90 -70 Programmable Controller Data Sheet Manual
GFK-0600F
Discrete Input Modules
5
GFK-0756D
August 1997
12 Volt AC, 32-Point Input Module
ÎÎ
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Î
Î
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ÎÎÎÎ
ÎÎÎÎ
ÎÎ
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Î
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Î
Î
JACKSCREW
a43747
ÎÎ
ÎÎ
ÎÎÎÎ
ÎÎ
ÎÎÎÎÎÎ
ÎÎ
ÎÎ
ÎÎÎÎÎÎ
ÎÎÎÎÎÎ
DO NOT
PULL
ON DOOR
WIRE BUNDLE CABLE TIE CLEAT
Figure 5. Removal of I/O Terminal Board
5. After completing connections to all modules in a
rack, the wire bundle must be secured. To ensure
that the wire bundle is secured properly, it is recommended that a cable tie be wrapped around the
wire bundle and tightly secured through the cable
tie cleat located at the lower right corner of the
terminal board. For extremely large wire bundles,
additional cable ties should be used.
6. A door label insert is included with each module to
indicate circuit wiring information and provide
space to record user circuit wiring identification.
A slot is provided on the hinged door to allow for
insertion of this label. If the label is difficult to insert, crease the scored edge before insertion. The
outside label has a color coded stripe to allow
quick identification of the module voltage type
(blue: low voltage; red: high voltage).
7. After field wiring is completed, the terminal board
should be securely fastened to the rack by inserting the terminal board strap (attached to each
module) into the small rectangular slots in the bottom card guide grill on the rack. This strap not
t
Series 90 -70 Programmable Controller Data Sheet Manual
GFK-0600F
only secures the terminal board to the rack, it also
provides a way of identifying the wired terminal
board with its correct mating rack slot location.
8. For adequate module ventilation, it is recommended that at least a 6 inch (152 mm) clearance
be allowed above and below the rack grill. Wire
bundles should not obstruct the rack grill work.
Removing an I/O Module
The instructions below should be followed when removing an I/O module from its slot in a rack.
1. Grasp the board firmly at the top and bottom of
the board cover with your thumbs on the front of
the cover and your fingers on the plastic clips on
the back of the cover.
2. Squeeze the rack clips on the back of the cover
with your fingers to disengage the clip from the
rack rail and pull the board firmly to remove it
from the backplane connector.
3. Slide the board along the card guide and remove it
from the rack.
36-5
Discrete Input Modules
6
GFK-0756D
August 1997
12 Volt AC, 32-Point Input Module
Table 1. Specifications for IC697MDL252 [
Rated Voltage:
12 VAC, 47 to 63 Hz Sinusoidal
Inputs per Module:
32 (four groups of eight inputs each)
Isolation:
1500 volts RMS - any input to backplane
500 volts RMS between input groups
10mA (typical) at rated voltage
1.12K ohms typical
Input Current:
InputImpedance:
Input Characteristics On-state Voltage:
7.5 to 15 volts RMS, 47 to 63 Hz Sinusoidal
Off-state Voltage:
0 to 2.5 volts RMS, 47 to 63 Hz Sinusoidal
On-stateCurrent:
6mA to 15mA
Off-state Current:
0 to 2.5mA (2mA minimum at 2.5V input)
Filter Delay Time:
20mstypical
Current Required from 5VDC backplane bus:
0.3 amps
VME
System designed to support the VME standard C.1
[ Refer to GFK-0867B, or later for product standards and general specifications. For installations requiring compliance to more
stringent requirements (for example, FCC or European Union Directives), refer to Installation Requirements for Conformance to
Standards.
Table 2. Ordering Information
Description
Catalog Number
Input Module : 12 Volt AC, 32 Points
IC697MDL252
Note: For Conformal Coat option, or Low Temperature Testing option please consult the factory for price and availability.
36-6
t
Series 90 -70 Programmable Controller Data Sheet Manual
GFK-0600F
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