GE 90*-30 PLC Series Installation And Hardware Manual

GFK-0356Q 6-1
Memory Backup/Battery Backup
Backup Battery for RAM Memory (All Supplies)
The long-life Lithium battery (IC693ACC301) used to maintain the contents of the CMOS RAM
memory in the CPU is accessed by removing the cover plate located at the bottom of the power
supply faceplate. This battery is mounted on a plastic clip attached to the inside of this cover.
The battery is wired to a small Berg female connector that connects to either of the two Berg male
connectors mounted on the Power Supply printed circuit board. This battery can be replaced with
power applied to the PLC.
B
A
T
T
E
R
Y
BATTERY
CONNECTORS
LITHIUM
BACK-UP
BATTERY
Battery Cover Removal Notch
BATT
RUN
OK
PWR
Low Battery
Warning LED
Battery
Cavity
Figure 6-1. Backup Battery for RAM Memory
Caution
If a Low Battery Warning (BATT LED turns ON) occurs, replace the
battery located in the power supply before removing power from the rack.
Otherwise, there is a possibility that data will be corrupted or the
application program will be cleared from memory.
6
Chapter

GE 90*-30 PLC Series Specifications

General

Brand	GE
Model	90*-30 PLC Series
Category	Computer Hardware
Language	English