MAN1256-05-EN_EXLW_XLWP_UM
November 10, 2021
186 | 201
NOTE: Do not use an alkaline AA battery, only the proper battery type listed above. Dispose of
the old battery properly; see the above warning on disposal regulations.
Below are the steps to replace the backup battery:
1.
Make sure the user program and any data stored in retentive memory is backed up.
2.
Disconnect all power from the XLW OCS unit including I/O power. Unplug I/O
connections.
3.
Using a small Phillips screwdriver, remove the I/O back panel, which is the smaller back
panel, by turning four (4) corner screws counterclockwise.
4.
Carefully lift off the I/O back panel. Be aware that a small insert may come loose from
the back cover. It can be inserted when back panel is replaced.
5.
After the I/O back panel is removed, carefully rock the I/O circuit board until released
from the unit and lift straight up from the unit. Set carefully to the side.
6.
Remove the larger back cover by turning four (4) corner screws counterclockwise.
Once again, an insert may come loose from this cover.
7.
Remove the Lithium battery carefully.
8.
Insert new battery by aligning the positive (+) end of the battery with the positive (+)
sign on the board.
9.
Replace the larger back panel by carefully aligning the four (4) screws into the
guideposts. If an insert came off, be sure to slide it back into the cover before
replacing.
10.
This unit has self-tapping screws. Once the screws are aligned, gently turn the screw
counterclockwise until it “clicks”. Then turn the screw clockwise until screw is seated.
11.
Once the larger back panel is replaced, gently replace the I/O circuit board by aligning
the edges with the guideposts. Align the XL Bus Connector, and then gently press on
the I/O circuit board until it is seated. If an insert came off, be sure to slide it back into
the cover before replacing.
12.
After the I/O circuit board is replaced, replace the I/O back cover by aligning the
screws with the posts.
13.
Once the screws are aligned, turn the screw counterclockwise until it “clicks”. Then
turn the screw clockwise until the screw is seated.
14.
Apply power and restore program and registers if necessary.
15.
Allow the unit to remain powered near room temperature (10-35°C) for 6 to 8 hours.
This will ensure the battery is fully charged properly for the first time.
16.
Once the battery is charged, test the battery function by removing power and re-
applying. Registers and clock function should be retained and there are no error
messages on power up.
17.
Once charged, the battery management system will maintain the battery at optimal
charge depending on use and temperature.
