Allen-Bradley 1492-CM1771-LD007 User manual

Field Wire Conversion for two A-B 1771-IA, -IA2 to one 1756-IA16
(Cat 1492-CM1771-LD007)
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I. Module Description
NOTICE: To maximize all 16 input points of the 1756-IA16 the 1492-CXE pre-wired cable used with the
1492-CM1771-LD007 conversion module was designed/manufactured with mating connectors for two 1771-IA, -IA2
(two 1492-CM1771-LD007 conversion modules). The 1492-CXE cable provides the TWO conversion modules
into ONE 1756-IA16 function. The two cables from the conversion modules to the 1756 input modules can each be
of a different length. Refer to footnote 2 and 3 below for available lengths.
The 1492-CM1771-LD007 conversion module provides field wire signal conversion from the A-B 1771-IA -IA2, 87
to 138Vac or 97 to 138Vdc, 8 point input module to the 1756-IA16, 74 to 132Vac, 16 point input module.
The conversion module provides the mating connector to the 1771-IA, -IA2 module swing-arm/terminal block with
the attached field wires. It routes those signals via its 25-pin connector and a 1492-CXE pre-wired cable to
compatible terminals on the 1756-IA16. (refer to the Wiring Diagram on page 2 for details).
II. Module Installation
The 1492-CM1771-LD007 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
 This is cable length in meters. Available lengths are limited to 005 (0.5m) and 010 (1.0m).
 This is cable length in meters. Available lengths are limited to 005 (0.5m) and 010 (1.0m).
Conversion Module Compatible 1771
Input Module
Compatible 1756
Input Module
Required 1492 Cable
Two
1492-CM1771-LD007
Two
1771-IA, -IA2
One
1756-IA16
One
1492-C
 XE
1492-CM1771-LD007 Conversion Module
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.
WARNING
 Refer to conversion module Specifications Section: Maximum Operating Voltage
PN-40380
DIR 10000045376 (Version 00)
Printed in U.S.A.

(2)
IV. Conversion Module Wiring Diagram
The following diagram shows the connections from the existing 1771-IA, -IA2 swing-arm, through the conversion module,
1492 cables and to the 1756-IA16 input module. The diagram can be used as an aid in possible system troubleshooting.
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.
WARNING
Conversion Module Installation and Application Considerations
 This Bul. 1492 cable consists of 2 seperate cables (cable“A”and cable “B”) wired to one 1756-IA16 RTB.Each cable can be either
0.5M or 1.0M (005=0.5M, 010=1.0M). Ensure that cable A and cable B are connected to the correct module in the conversion.
 The input delay times for the 1771-IA, -IA2 module versus the 1756-IA16 module are as follows:
1771-IA, -IA2 1756-IA16
a) Off-to-On-Delay 24ms (+/- 10ms) 10ms max (plus selectable filter)
b) On-to-Off-Delay 24ms (+/- 10ms) 8ms max (plus selectable filter)
The 1771-IA, -IA2 module is rated 87V to 138V AC and 97V to 138V DC.The 1756-IA16 module is rated 79V to 132V AC only.
Refer to your 1771-IA, -IA2 and 1756-IA16 Installation Manual wiring schematics and diagrams for more details.
[Reference Doc: 41170-952 (Version 00)]
PN-40380
DIR 10000045376 (Version 00)
1756-IA16
10 L2-0
IN-0
1
IN-1
2
IN-2
3
IN-3
4
IN-4
5
IN-5
6
IN-6
7
IN-7
8
IN-8
11
IN-9
12
IN-10
13
IN-11
14
IN-12
15
IN-13
16
IN-14
17
IN-15
18
1492-CXE
CABLE “A”
CABLE “B”
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
L2-1
20
9L2-0
19 L2-1
A
1
0
19
1
3
2
4
3
5
4
6
5
7
6
8
7
9
10
11B
12
13
15
16
17
18
20
14
1492-CM1771-LD007
1492-CM1771-LD007
2
Input 4
Input 6
Input 5
Input 7
Input 0
Input 2
Input 1
Input 3
Not used
L2
Conversion: 1771-IA or 1771-IA2 to 1756-IA16 with 1492-CM1771-LD007
1771-WA Swing Arm
L1
L2
L1
L2
24
21
22
23
25
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
A
1
0
19
1
3
2
4
3
5
4
6
5
7
6
8
7
9
10
11B
12
13
15
16
17
18
20
14
2
Input 4
Input 6
Input 5
Input 7
Input 0
Input 2
Input 1
Input 3
Not used
L2
1771-WA Swing Arm
24
21
22
23
25

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V. 1492-CM1771-LD007 Conversion Module Specifications
(Operating specifications are when installed in the Conversion System base / cover-plate assembly)
Specification
Dimensions
Approximate Shipping Weight
317.5 g (0.70 lbs) ( includes carton)
Storage Temperature -40 to +85°C (-40 to +185°F)
Operating Temperature
0 to 60°C (32 to 140°F)
Operating Humidity 5 to 95% at 60°C (non-condensing)
Shock
Non
-
operating
Operating
50g
30g
Operating Vibration
2g at 10 to 500Hz (Agrees with 1756 I/O module specifications)
Maximum Operating Voltage
132 Vac at 47 to 63Hz
Max. Module Operating Current
Per Point:
Per Module:
2 Amps
2 Amps
Agency Certifications
UL Classified: Under UL File Number E113724
CSA
CE: compliant for all applicable directives
Pollution Degree
2
Environmental Rating
IP20
Refer to the Wiring Diagram(s) for
current limits for a specific configuration.
NOTICE
Value
11.81 in. (height) x 4.38 in. (depth) x 1.5 in. (width)
300 mm. (height) x 111.25 mm (depth) x 38.1 mm (width)
PN-40380
DIR 10000045376 (Version 00)

VI. Appendix A - 1771 chassis 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 the
Digital and Analog Conversion Selection Table Matrix.
2) Review the Max Slots for I/O and Chassis Width data from the below table, and select a 1756 I/O Chassis which meets
your conversion needs from Step 1. Ensure the information from the I/O Conversion module tables are reviewed first.
3) Once the 1756 Chassis is selected, select the Conversion Assembly. The Conversion Assembly has the same dimen-
sional foot-print as the 1771 chassis and can use the same mounting hardware. The assembly consists of a base-plate
to hold the 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).
Foot 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/PS
includes -P1, -P2, etc. Notice that the width dimension of some 1756 chassis exceed the width of the 1771 chassis with
or without the power supply. Cover-plate chassis mounting design allows the excess 1756 chassis width to be evenly
distributed 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 -A7
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
Max Slots for I/O
4
-A1B w/o
PS
4
-A1B
w/PS
3 6 8 8 69 12
-A13 (5)
12
-A3B1-A10-A7 (4)
-A2B
w/PS
-A2B w/o
PS
-A7-A4 (3)
16
-A17 (6)
16
-A4B
Chassis Width (2)
Conversion Assembly
Chassis Parameter(1)
1756 Equivalent
Chassis
1756 Equivalent
Chassis
24.01 29.0623.1519.0119.029.01 12.61 10.35 14.49 14.4914.01 17.61
1771 Chassis 1771 Chassis
1771 Chassis
1492-MUA1B-A4-A7 1492-MUA2B-A7-A10 1492-MUA3-A10-A13 1492-MUA4-A13-A17
1771 Chassis 1756 Equivalent
Chassis
1756 Equivalent
Chassis
PN-40380
DIR 10000045376 (Version 00)
Printed in U.S.A.