Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 346)

346 Publication 1753-UM001C-EN-P - March 2010
Appendix D Replacing the Back-up Battery
GuardPLC 1200 Controllers Replace the back-up battery on your GuardPLC 1200 controller every
two years. The battery case is located on the left-hand side of the
cabinet (see drawing below). The battery must be replaced together
with the case.
Replacements are available from Rockwell Automation under part
number 1754-BAT.
Follow these steps to replace the battery.
1. Press the left side of the battery case toward the controller and
pull the left side of the battery case toward you to remove the
battery case.
2. Insert a new battery case making sure that the case is correctly
aligned and the pins inside the GuardPLC 1200 controller are not
bent.
3. Press on the left edge of the case so that the pins seat in the
connector, then press on both sides of the case until the battery
snaps into place.
ATTENTION
Make sure that the GuardPLC 1200 controller is powered on.
Replacing the back-up battery while the controller is
de-energized causes a reset. All data including the clock
settings will be lost.
Back-up Battery
and Case
(bottom view)
Battery Case