Rockwell Automation 1747-KE,D17476.12 DH-485/RS-232C Interface Module - Manual (Page 125)

1 Publication 1747-UM005B-EN-P - March 2006
Appendix
C
Lithium Battery Replacement, Handling, and
Disposal
This appendix contains important information you should know when
using lithium batteries.
Battery Replacement Your module provides back-up power for RAM through a replaceable
lithium battery (catalog number 1747-BA). This battery provides
back-up for approximately five years. A BAT LOW indicator on the
front of the module alerts you when the battery voltage has fallen
below the replace battery threshold level.
To replace the lithium battery:
1. Remove power from the SLC 500 power supply.
2. Remove the module from the chassis by depressing the retainer
clips at both the top and bottom of the module and slide it out.
ATTENTION
Do not remove the module from the SLC 500 chassis
until all power is removed from the SLC 500 power
supply.
IMPORTANT
If the top or bottom retainer clips are broken when
removing the module they can be easily replaced.
Pry the broken clip(s) off from the bottom with a
screwdriver, if necessary. Do not twist off. Snap in
the replacement clip. Order catalog number
1746-R15 (2 per package).
ATTENTION
Do not expose the module to surfaces or other areas
that may typically hold an electrostatic charge.
Electrostatic charges can alter or destroy memory.