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Rockwell Automation 1492 1771-to-1756 I/O Swing-arm Conversion System User Manual

I. conversion preparation

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Installation Manual: 1771-to-1756 I/O Swing-arm Conversion System

(Cat 1492-_)

Local language (French, Italian, German & Spanish) versions of this document can be downloaded by going to www.ab.com. In the left margin click on
Publications Library and Literature Library. In the Search Area (right margin), Search by Catalog Number and in the Search box type in the catalog number
of the conversion system component.

I. Conversion Preparation

Prior to actually beginning the removal of the 1771 I/O hardware, it is vital to prepare for the I/O field wire swing-arm conversion by at minimum
reviewing the following steps:
a) Inventory the 1492 swing-arm conversion mounting hardware on site to ensure the correct components are available, before removing any

1771 I/O hardware. Refer to Appendix A 1771 to 1756 I/O Chassis Conversion System Selection Process for details.

b) Inventory the 1492 swing-arm conversion modules (e.g. 1492-CM1771-LD001) and 1492 cables (e.g. 1492-CONCAB005X,
1492-CONACAB005C, etc) to interface the conversion module to the 1756 I/O module. Inventory your 1756 I/O modules, power supply and
chassis. Ensure the correct component types and correct number of those components are on site to complete the conversion. A sufficient

number of spare parts should also be available in case a part is damaged during the conversion.

Refer to Appendix B Conversion Module Selection Process for details.

c) Review the application considerations in each conversion module’s Installation manual to ensure the conversion module 1756 I/O module or

associated 1492 cable is not being misapplied. A wiring diagram which shows the circuit connections from the 1771 I/O swing-arm to the
1756 I/O module is also in the Installation Manual to assist in possible troubleshooting.

d) Review Rockwell Automation Publication 1770-4.x Industrial Automation Wiring and Grounding Guidelines (available at the Publication

Literature Library: http//.www.ab.com/literature). Ensure to follow these guidelines with particular attention to ground when installing the
conversion system.

e) Obtain current and correct 1771 I/O wiring schematics prior to disassembly. Typically this will not be used but should be available in advance

for reference.

f) Tools required: Flat blade and phillips screwdriver, box or socket wrench set (size dependent on original installation), cable ties.

Conversion Base-Plate: To mount conversion modules

Conversion Cover-Plate: To mount the 1756 Chassis
and to protect the conversion modules

1492 Cables: Provide interface
between conversion module to 1756
I/O module

1492 25-Pin Cable

1492 37-Pin Cable

Conversion Modules: Convert 1771 I/O module field wire terminations to ones compatible with a 1756 I/O module

(refer to Appendix B and C for compatability details)

10000060110 (Version 00)

Printed in U.S.A.