Power Supply Modules
(Cat. No. 1771P4R and P6R)
Installation Data
4
Table C
Switch Positions
If Configuration Zone Is
Set Switches:
A
5 and 6 OPEN
B
5 CLOSED and 6 OPEN
C
5 OPEN and 6 CLOSED
Place the Power Supplies
WARNING: Turn off the power supply module before
removing it from or inserting it into a chassis. Failure to observe
this warning could alter processor memory, damage module
circuitry, and cause unintended operation which could possibly
cause injury to personnel.
You can place these power supply modules into any I/O module slot in any
current chassis (1771-A1B, -A2B, -A3B, -A3B1, -A4B, -PSC).
The primary requirement for placing redundant power supplies is the need
to allocate 2 to 4 adjacent slots in your 1771I/O chassis for the modules.
Important: Series A I/O chassis CANNOT be used with 1771-P4R,
-P6R modules.
Connect the Redundancy Cables
The power supply redundancy cables allow the power supplies to
communicate load-sharing data. The two connectors on each supply are in
parallel to permit three or four supplies to be daisy-chained together in a
redundant system.
To connect the cables:
1.
Connect the redundancy cable between the connectors labeled P/S
REDUNDANT on the power supply as shown in figure
.
2.
Loop the cable over the top of the I/O chassis to avoid picking up
signals induced from I/O wiring.