Rockwell Automation 1756-xxxx ControlLogix Chassis and Power Supplies Installation Instructions - Manual (Page 32)

32 Rockwell Automation Publication 1756-IN005C-EN-P - March 2014
Chapter 2 Install Chassis and Redundant Power Supplies
Components of the
Redundant System The following figure shows the components of a redundant system in a typical
configuration.
42655
2
3
1
4
Item Description Cat. No.
1 Redundant power supply 1756-PA75R/A and/or 1756-PB75R/A
2 Redundant power supply cable
(1)
(Length = 0.91 m [3 ft])
1756-CPR2
3 Redundant power supply chassis adapter 1756-PSCA2
4 Annunciator wiring
(2)
(Maximum length = 10 m [32.8 ft])
User-supplied
(1) Cable bend radius is 12.7 cm (5.0 in.)
(2) Optional user-provided annunciator wiring can be connected to the solid-state relay for status and troubleshooting
purposes. See page 50 for more information.