Rockwell Automation 1492-CM1771-LA002 User Manual

Analog I/O Conversion Module

(Cat 1492-CM1771-LA002)

I. Description

This Analog I/O Conversion Module provides for the conversion of (1) 1771, 8 Channel I/O module to be converted to (1) 1756, 8 Channel I/O module and consists of the following:

(1) 1771 Module (8ch) to (1) 1756 Module (8ch)

(2) Conversion Module: 1492-CM1771-LA002 (1) Cable: 1492-CONACAB005C or 1492-CONACAB005D (Table 2) (1) Conversion Mounting Assembly: 1492-MUA… (Table 1)

This conversion is accomplished without the removal of any field wires from the existing 1771 Swing Arm. The existing 1771 Swing Arm fits directly onto the edge connector of the 1492 Conversion Module. On one end of the 1492 Cable is (1) connector for the Conversion Module. On the other end is the Removable Terminal Block (RTB) for the 1756 I/O module, as shown in the photo below. The I/O signals are routed through the 1492 Conversion Module and the 1492 Cable to the appropriate terminals on the 1756 I/O module per the Wiring Diagrams in Section V. As standard, both portions of the 1492 Cables are 0.5M long, but we also offer a 1.0M cable length. Refer to the footnotes in Table 2 for further details.

WARNING

PN-114288 DIR 10000060099 (Version 01)

Publication 1492-IN046B-EN-E

Printed in U.S.A.

Conversion Compatibility and Product I.D. Label

25-Pin Connector for cable 1492-CONACAB005

1492-CM1771-LA002 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.

C OR -CONACAB005D

II. Installation

The 1492 Conversion Modules must be installed in a 1492 Conversion Mounting Assembly (see Table 1 below). A complete System Installation Manual ships with the 1492 Conversion Mounting Assembly.

1) Determine the quantity of each type of 1771 I/O modules used in the 1771 I/O Chassis to be converted.

2) Select the applicable 1492 Conversion Modules from Table 2, Section III.

3) Review the Max Slots for I/O and Chassis Width data from the Table 1 below.

4) Select a 1756 I/O Chassis which has enough I/O Slots. NOTE: (2) I/O slots are required in the 1756 Chassis for conversions where (1) 1771 I/O module converts to (2) 1756 I/O modules.

5) Select the 1492 Conversion Mounting Assembly which has enough Conversion Module slots. NOTE: (2) Conversion Module slots are required in the 1492 Conversion Mounting Assembly for conversions where (2) 1771 I/O module convert to (1) 1756 I/O modules. NOTE: The 1492 Conversion Mounting Assembly has the same Height & Width foot-print as the 1771 Chassis and is designed to use the same mounting hardware. The combined Depth of the 1492 Conversion Mounting Assembly with the 1756 Chassis mounted on top is 10.25 inches (Controller w/key) or 10.0 inches (Controller w/o key). Dimension drawings are included in the System Installation Manual that ships with the 1492 Conversion Mounting Assembly.

Table 1: Bulletin 1771 to 1756 Chassis Conversion

1771 Chassis 1756 Chassis Conversion Mounting Assembly

Max

Cat. No.

1771-A1B 4 9.01 12.61

1771-A2B 8 14.01 17.61

1771-A3B1

1771-A4B 16 24.01

Slots

for

I/O

12 19.01

Chassis Width

without

Power

Supply

with

Power

Supply

Cat. No.

1756-A4

1756-A7

1756-A10

1756-A10 1756-A13

1756-A13

1756-A17

Max

Slots

Chassis for I/O

12 23.15

16 29.06

Width

3 10.35

6 14.49

6 14.49 9 19.02

9 19.02

Max Slots

Cat. No.

1492-MUA1B-A4-A7 4 9.01

1492-MUA2B-A7-A10 8 14.01

1492-MUA3-A10-A13 12 19.01

1492-MUA4-A13-A17 16 24.01

for

Conversion

Modules

Chassis

Width

Foot Notes:

1771-A3B is not listed as it is used for 19 inch wide instrumentation panels.

Notice that the 1756 Chassis Width sometimes exceeds the 1771 Chassis Width, with or without the Power Supply. The

Cover-Plate of the 1492 Conversion Mounting Assembly allows the 1756 Chassis to be Left justified, Right justified or Centered. A complete System Installation Manual ships with the 1492 Conversion Mounting Assembly.

PN-114288 DIR 10000060099 (Version 01)

Publication 1492-IN046B-EN-E

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III. Compatibility

1771

1492

Analog I/O Module

1756

1771-IFE (DC) 1771-IF16 (DC) 1492-CM1771-LA002 1492-CONACAB005D 1771-IFE (DV) 1771-IF16 (DV) 1492-CM1771-LA002 1492-CONACAB005C

1771-IFF (DC) 1771-IF16 (DC) 1492-CM1771-LA002 1492-CONACAB005D

1771-IFF (DV) 1771-IF16 (DV) 1492-CM1771-LA002 1492-CONACAB005C

Foot Notes:

To understand any issues concerning I/O module compatibility, refer to the Installation Manuals for the specific

1771 and 1756 I/O modules involved.

The 3 numbers indicate the length of the 1492 Cable. Recommended cable lengths of 0.5M are shown.

Additional cable lengths are as follows:

1.0M = 1492-CONACAB010C

1.0M = 1492-CONACAB010D

IV. Conversion Module Specifications

I/O Conversion Module

1492

Cable

(Operating specifications are when installed in the Conversion System base / cover-plate assembly)

Specification Value

Dimensions

Approximate Shipping Weight Storage Temperature -40 to +85 C (-40 to 185 F) Operating Temperature 0 to 60 C (32 to 40 F) Operating Humidity 5 to 95% at 60 C (non-condensing) Shock Non-operating Operating Operating Vibration 2g at 10 to 500Hz (Agrees with 1756 I/O module specification) Maximum Operating Voltage 30 Vdc Max. Module Operating Current

Per Point: Per Module:

Agency Certifications

Pollution Degree 2 Environmental Rating IP20

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)

250.6 g (0.55 lbs) (includes carton)

50g 30g

2 Amps 12 Amps

NOTICE

UL Classified: Under UL File Number E113724 CSA CE: compliant for all applicable directives

Refer to the Wiring Diagram(s) for current limits for a specific configuration.

PN-114288 DIR 10000060099 (Version 01)

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