Field Wire Conversion Module for A-B 1771-IAD to 1756-IH16I or 1771-IMD to 1756-IM16I
(Cat 1492-CM1771-LD002)
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I. Module Description
The 1492-CM1771-LD002 conversion module provides field wire signal conversion from an A-B 1771-IAD, 79 to
138Vac/dc, 16 point input module to a 1756-IH16I, 90 to 146Vdc, 16 point individually isolated input module or a
1771-IMD, 184 to 250Vac or 166 to 230Vdc, 16 point input module to a 1756-IM16I, 159 to 265Vac, 16 point
individually isolated input module. The conversion module provides the mating connector to the 1771-IAD or
1771-IMD module swing-arm/terminal block with the attached field wires. It routes those signals via its 37-pin
connector and a 1492-CONCABY pre-wired cable to compatible terminals on the 1756-IH16I or 1756-IM16I
(refer to Wiring Diagrams on page 2 and 3 for details).
Conversion Compatibility and
Product I.D. Label
37-Pin Connector for cable 1492-CONCAB
1492-CM1771-LD002 Conversion Module
Y
WARNING
Refer to conversion module Specifications Section: Maximum Operating Voltage
De-energize and lockout any and all power to all I/O field devices connected to the A-B 1771 I/O
Chassis, and the power to the 1771 I/O Chassis itself. Ensure all power is de-energized and locked out
to any device in the control cabinet where the conversion is to be performed. Ensure work is
performed by qualified personnel.
II. Module Installation
The 1492-CM1771-LD002 conversion module must be installed in a 1492 conversion base-plate and cover-plate
assembly. The installation of the module into the assembly is explained in the Installation Manual that ships with the
conversion assembly. For a list of compatible assemblies refer to Appendix A.
III. Conversion Module Compatibility Matrix
Conversion Module Compatible 1771
1492-CM1771-LD002 1771-IAD 1756-IH16I 1492-CONCAB
1492-CM1771-LD002 1771-IMD 1756-IM16I 1492-CONCAB
This is cable length in meters. Available lengths are limited to 005 (0.5m) and 010 (1.0m).
PN-40373
DIR 10000060085 (Version 00)
Printed in U.S.A.
Input Module
Compatible 1756
Input Module
Required 1492 Cable
Y
Y
IV. Conversion Module Wiring Diagram
The following diagrams show the connections from the existing 1771-IAD and 1771-IMD swing-arm, through the conversion module, 1492 cable and to the 1756-IH16I and 1756-IM16I input module. The diagrams can be used as an aid in
possible system troubleshooting.
WARNING
+
-
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion: 1771-IAD to 1756-IH16I with with 1492-CM1771-LD002
1492-CM1771-LD002
1
Terminal A
Terminal B
Terminal C
Terminal D
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
Terminal E
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
E
2
3
1492-CONCAB005Y
4
Orange
5
Blue
6
7
White/Black
8
Red/Black
Green/Black
9
10
Orange/Black
Blue/Black
11
Black/White
12
Red/White
13
Green/White
14
Blue/White
15
Black/Red
16
White/Red
17
Orange/Red
18
Blue/Red
19
Red/Green
20
Orange/Green
21
Black/White/Red
22
23
White/Black/Red
24
Red/Black/White
Green/Black/White
25
26
Orange/Black/White
Blue/Black/White
27
Black/Red/Green
28
White/Red/Green
29
Red/Black/Green
30
Green/Black/Orange
31
Orange/Black/Green
32
Blue/White/Orange
33
Black/White/Orange
34
White/Red/Orange
35
Orange/White/Blue
36
37
2
1
4
3
6
5
8
7
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
30
29
32
31
1756-IH16I
GND-0
IN-0
GND-1
IN-1
GND-2
IN-2
GND-3
IN-3
GND-4
IN-4
GND-5
IN-5
GND-6
IN-6
GND-7
IN-7
GND-8
IN-8
GND-9
IN-9
GND-10
IN-10
GND-11
IN-11
GND-12
IN-12
GND-13
IN-13
GND-14
IN-14
GND-15
IN-15
1771-WH Swing Arm
Conversion Module Installation and Application Considerations
The input delay times for the 1771-IAD module versus 1756-IH16I module are as follows:
1771-IAD 1756-IH16I
a) Off-to-On Delay 3ms @120V DC 2ms (plus selectable filter)
b) On-to-Off Delay 25ms (+/-5ms) 6ms (plus selectable filter)
The 1771-IAD module is rated 79V to 138V AC or DC. The 1756-IH16I module is rated 90V to 146V DC. If the input
spurce voltage is AC use a 1756-IA16 and 1492-CM1771-LD002 conversion module.
Refer to your 1771-IAD and 1756-IH16I Installation Manual wiring schematics and diagrams for more details.
[Reference Doc: 41170-927 (Version 01)]
PN-40373
DIR 10000060085 (Version 00)
(2)
IV. Conversion Module Wiring Diagram (Continued)
L1
L2
WARNING
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion: 1771-IMD to 1756-IM16I with 1492-CM1771-LD002
1492-CM1771-LD002
1
Terminal A
Terminal B
Terminal C
Terminal D
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
Terminal E
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
E
2
3
1492-CONCAB005Y
4
Orange
5
Blue
6
7
White/Black
8
Red/Black
Green/Black
9
10
Orange/Black
Blue/Black
11
Black/White
12
Red/White
13
Green/White
14
Blue/White
15
Black/Red
16
White/Red
17
Orange/Red
18
Blue/Red
19
Red/Green
20
Orange/Green
21
Black/White/Red
22
23
White/Black/Red
24
Red/Black/White
Green/Black/White
25
26
Orange/Black/White
Blue/Black/White
27
Black/Red/Green
28
White/Red/Green
29
Red/Black/Green
30
Green/Black/Orange
31
Orange/Black/Green
32
Blue/White/Orange
33
Black/White/Orange
34
White/Red/Orange
35
Orange/White/Blue
36
37
2
1
4
3
6
5
8
7
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
30
29
32
31
1756-IM16I
L2-0
IN-0
L2-1
IN-1
L2-2
IN-2
L2-3
IN-3
L2-4
IN-4
L2-5
IN-5
L2-6
IN-6
L2-7
IN-7
L2-8
IN-8
L2-9
IN-9
L2-10
IN-10
L2-11
IN-11
L2-12
IN-12
L2-13
IN-13
L2-14
IN-14
L2-15
IN-15
1771-WH Swing Arm
Conversion Module Installation and Application Considerations
The input delay times for the 1771-IMD module versus 1756-IM16I module are as follows:
1771-IMD 1756-IM16I
a) Off-to-On Delay 15ms (+/-8ms) 10ms (plus selectable filter)
b) On-to-Off Delay 172ms (+/-56ms) 8ms (plus selectable filter)
The 1771-IMD module is rated 184V AC to 250V AC and 166V-230V DC. The 1756-IM16I module is rated 159V to 265V
AC. A1756 input module with an equivalent DC voltage range to convert the 1771-IMD is not available.
Refer to your 1771-IMD and 1756-IM16I Installation Manual wiring schematics and diagrams for more details.
[Reference Doc: 41170-928 (Version 01)
PN-40373
DIR 10000060085 (Version 00)
(3)
]
V. 1492-CM1771-LD002 Conversion Module Specifications
t
2)
y
3) O
s
to hold th
oo
S
7
(Operating specifications are when installed in the Conversion System base / cover-plate assembly)
Specification
Dimensions
Approximate Shipping Weight
Storage Temperature -40 to +85°C (-40 to +185°F)
Operating Temperature
Operating Humidity
Shock
Non-operating
Operating
Operating Vibration
Maximum Operating Voltage 240 Vac at 47 to 63Hz or 240 Vdc
Max. Module Operating Current
Per Point:
Per Module:
Agency Certifications
Pollution Degree
Environmental Rating
11.81 in. (height) x 4.38 in. (depth) x1.5 in. (width)
300 mm. (height) x 111.25 mm (depth) x 38.1 mm (width)
262.4 g (0.58 lbs) (includes carton)
0 to 60°C (32 to 140°F)
5 to 95% at 60°C (non-condensing)
50g
30g
2g at 10 to 500Hz (Agrees with 1756 I/O module specifications)
2 Amps
2 Amps
UL Classified: Under UL File Number E113724
CSA
CE: compliant for all applicable directives
2
IP20
NOTICE
Value
Refer to the Wiring Diagram(s) for
current limits for a specific configuration.
VI. Appendix A - 1771 to 1756 Chassis Conversion System Selection Process
1) Determine the number of 1771 I/O modules used in the 1771 I/O Chassis to be converted to 1756. NOTE: In some
cases two 1756 modules may be required for one 1771 module. Select the applicable 1492 conversion modules from
he Digital and Analog Conversion Selection Table Matrix.
Review the Max Slots for I/O and chassis width data from the below table, and select a 1756 I/O Chassis which meets
our conversion needs from Step 1. Ensure the information from the I/O Conversion module tables are reviewed first.
nce the 1756 Chassis is selected, select the Conversion Assembly. The Conversion Assembly has the same dimen
ional foot-print as the 1771 chassis and can use the same mounting hardware. The assembly consists of a base-plate
e conversion modules and a cover-plate to protect the modules and to mount the selected 1756 chassis. The
combined depth of the conversion assembly with the 1756 chassis mounted is 10.25 inches (Controller w/key) to
10.0 inches (Controller w/o Key).
1756 Equivalent
Chassis
(5)
-A13
1771 Chassis
-A4B
16
Chassis Parameter(1)
Max Slots for I/O
1771 Chassis
-A1B w/o
PS
4
-A1B
w/PS
4
1756 Equivalent
Chassis
(3)
-A7-A4
36 8 8
1771 Chassis
-A2B w/o
PS
-A2B
w/PS
1756 Equivalent
Chassis
(4)
912
6
1771 Chassis
-A3B1-A10-A7
12
1756 Equivalent
Chassis
(6)
-A17
16
Chassis Width
Conversion Assembly
F
t Notes:
1771-A3B is not listed as it is used for 19 inch wide instrumentation panels
Two 1771 width dimensions are provided as some PLC-5 processors have integrated power supplies. Dimension w/P
ncludes -P1, -P2, etc. Notice that the width dimension of some 1756 chassis exceed the width of the 1771 chassis with
r without the power supply. Cover-plate chassis mounting design allows the excess 1756 chassis width to be evenly
istributed to both sides, or excess to right or left. Carefully consider this in the conversion
1756-A4 may work in a 1771-A1B application if 4 or less I/O slots were used. Conversion cover-plate is capable to
mount -A4 or -A
1756-A7 may work in a 1771-A2B application if 6 or less I/O slots were used. Conversion cover-plate is capable to
mount -A7 or -A10
1756-A10 may work in a 1771-A3B1 application if 10 or less I/O slots were used. Conversion cover-plate is capable to
mount -A10 or -A13
1756-A13 may work in a 1771-A4B application if 13 or less I/O slots were used. Conversion cover-plate is capable to
mount -A13 or -A17
PN-40373
DIR 10000060085 (Version 00)
Printed in U.S.A.
(2)
12.61 10.35 14.49 14.4914.01 17.61
24.01 29.0623.1519.0119.029.01
1492-MUA1B-A4-A7 1492-MUA2B-A7-A10 1492-MUA3-A10-A13 1492-MUA4-A13-A17
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