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

Installation Manual: 1771-to-1756 I/O Swing-arm Conversion System
(Cat 1492-_)
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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.