Rockwell Automation 1492-CM800-LD006 Fused Field Wire Conversion Module for Modicon B820-008 to 1756-OC8 - Manual

Fused Field Wire Conversion Module for Modicon B820-008 to 1756-OB8 or 1756-OC8
(Cat 1492-CM800-LD006)
10000021873 (Version 00)
Printed in Germany
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. Module Description
The 1492-CM800-LD006 conversion module provides field wire signal conversion from a Modicon® B820-008, 10
to 60Vdc, 8-pt output module to a ControLogix 1756-OB8, 10 to 30Vdc or 1756-OC8, 30 to 60Vdc, 8-pt output
module. The conversion module provides the mating connections to the B820-008 swing-arm (terminal block) with
the attached field wires. It routes those signals, via its 20-pin connector and a 1492-CABLEU pre-wired cable to
compatible terminals of the 1756-OB8 or 1756-OC8. To maintain the functionality of the B820-008 output module
the conversion module provides a mechanical fuse for each of the two power supplies (DC-0+ and DC-1+) on the
1756-OB8 and 1756-OC8 (refer to the below Wiring Diagrams for details).
II. Module Installation
The 1492-CM800-LD006 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).
Conversion Module Compatible 800
Output Module
Compatible 1756
Module
Required 1492 Cable
1492-CM800-LD006 B820-008 1756-OB8 1492-CABLEU
1492-CM800-LD006 B820-008 1756-OC8 1492-CABLEU
1492-CM800-LD006 Conversion Module
20-Pin Connector for 1492-CABLEU
Mating Connector for
B800 Terminal Block
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