Rockwell Automation 1492-CM800-LD001 User Manual
Fused Field Wire Conversion Module for Modicon B802-008 to 1756-OA8
(Cat 1492-CM800-LD001)
10000021848 (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-LD001 conversion module provides field wire signal conversion from a Modicon® B802-008, 80 to
130Vac , 8-pt output module to a ControLogix 1756-OA8, 74 to 265Vac , 8-pt output module. The conversion
module provides the mating connections to the B802-008 swing-arm (terminal block) with the attached field wires. It
routes those signals, via its 20-pin connector and a 1492-CABLEU pre-wired cable to the compatible terminals of
the 1756-OA8. To maintain the functionality of the B802-008 output module the conversion module provides a
mechanical fuse for each of the two power sources (L1-0 and L1-1) on the 1756-OA8 (refer to the Wiring Diagram and
Fuse Installation and Removal sections for details).
II. Module Installation
The 1492-CM800-LD001 conversion module must be installed in a 1492 conversion system base-plate and coverplate 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
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
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).
Refer to conversion module Specifications Section: Maximum Operating Voltage
1492-CM800-LD001 Conversion Module
Conversion Module Compatible 800
Output Module
Compatible 1756
Output Module
Required 1492 Cable
1492-CM800-LD001 B802-008 1756-OA8 1492-CABLE
U
20-Pin Connector for 1492-CABLE
U
Mating Connector for
B800 Terminal Block
(2)
IV. Conversion Module Wiring Diagram
The following diagram shows the connections from the existing B802-008 swing-arm, through the conversion module, 1492
cable and to the 1756-OA8 output module. The diagram can be used as an aid in possible system troubleshooting.
2
L1-0
OUT-0
3
OUT-1
5
OUT-2
7
OUT-3
9
OUT-4
4
OUT-5
6
OUT-6
8
OUT-7
10
12
14
16
18
11
13
15
17
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
1
1 2
2 3
7 4
8 5
6
7
4 8
9
10 10
11
12
14 13
20
11 15
12 16
17 17
18 18
19
20
14
Red/Green
Not Used
19
Output 1
Output 3
Output 2
Output 4
1
Not Used
20
L1-1
LOAD
L1
L2
L1-0
L1-0
L1-0
L1-0
L1-1
L1-1
L1-1
L1-1
Hot Grp 1
Hot Grp 2
Hot Grp 3
Hot Grp 4
Output 5
Output 7
Output 6
Output 8
3Neutral Grp 1
9Neutral Grp 2
13Neutral Grp 3
19Neutral Grp 4
5Not Used
6
15
16Not Used
Not Used
Not Used
10000021848 (Version 00)
Conversion Module Installation and Application Considerations
The B802-008 module output current limits versus 1756-OA8 limits are as follows:
B802-008 1756-OA8 w/ 1492-CABLE003U
a) Current/Point 2A 2A
b) Current/Module 12A 5A @ 30˚C, 4A @ 60˚C
c) Surge Current/Pt 50A for 1 cycle 20A for 43ms
1756-OA8
1492-CABLE003U
1492-CM800-LD001
Conversion: B802-008 to 1756-OA8 with 1492-CM800-LD001
B802-008 Swing Arm
The B802-008 has 4 groups (allowing 4 separate power supplies) and the 1756-OA8 has 2 groups. This module/cable
combination ties Groups 1 & 2 from the B802-008 to Group 0 on the 1756-OA8 and it ties Groups 3 & 4 from the B802-008 to
Group 1 on the 1756-OA8. Field wiring modification must be made to accommodate this if multiple supplies were used. If 4
supplies were used, 2 must be removed.
The B802-008 provided a single fuse per group. The 1756-OA8 is NOT fused. The 1492-CM800-LD001 provides a
5x20mm fuse per 1756-OA8 Group. Fuse rating for this configuration 4 Amps.
The 1492-CABLE003U current is limited to 2A per pin.
Refer to your B802-008 and 1756-OA8 Installation Manual wiring schematics and diagrams for more details. Ensure 1756
output module ratings are not exceeded.
[Reference Doc: 41170-750 (Version 03)]
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and output module). Read and understand these
considerations before installation. In addition, refer to the current draw requirements of the existing
loads for this configuration to ensure they are within the current ratings of the 1756 output module.
WARNING
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