Rockwell Automation 1492-CM800-LD011 Field Wire Conv. Module for Modicon B838-032 to 1756-OB32 - Manual

Fused Field Wire Conversion Module for Modicon B838-032 to 1756-OB32
(Cat 1492-CM800-LD011)
10000021898 (Version 00)
Printed in Germany
Local language (French, Italian, German & Spanish) versions of this document can be downloaded by going to www.ab.com.
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I. Module Description
The 1492-CM800-LD011 conversion module provides field wire signal conversion from a Modicon® B838-032, 20 to
28Vdc, 32-pt output module to a ControLogix 1756-OB32, 10 to 31.2Vdc, 32-pt output module. The conversion
module provides the mating connections to the B838-032 swing-arm (terminal block) with the attached field wires. It
routes those signals, via its 40-pin connector and a 1492-CABLEZ pre-wired cable to compatible terminals of the
1756-OB32. To maintain the functionality of the B838-032 output module the conversion module provides a mechani-
cal fuse for each of the two power supplies (DC-0+ and DC-1+) on the 1756-OB32 (refer to the Wiring Diagram on
page 2).
II. Module Installation
The 1492-CM800-LD011 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 the cable length in meters and tenths of meters (e.g. 015 = 1.5 meters). Recommended cable
length is 003 (00.3 meters).
40-Pin Connector for 1492-CABLEZ
Mating Connector for
B800 Terminal Block
Conversion Module Compatible 800
Output Module
Compatible 1756
Output Module
Required 1492 Cable
1492-CM800-LD011 B838-032 1756-OB32 1492-CABLEZ
1492-CM800-LD011 Conversion Module
De-energize and lockout any and all power to all I/O field devices connected to the Modicon 800 I/O
housing, and the power to the 800 I/O housing 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