MAN0964-14-EN_XL4_XL4P_UM
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Below are the steps to replace the lithium-ion battery, part no. BAT00019, available from Horner
APG.
1.
Make sure the user program and any data stored in retentive memory is backed up.
2.
Disconnect all power from the XL4 OCS unit including I/O power. Unplug I/O
connections.
3.
Using a small Phillips screwdriver, remove the back cover.
4.
Carefully lift off the 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 back panel is removed, carefully pull and rock the I/O circuit board until
released from the unit and lift straight up from the unit. Set carefully to the side.
6.
The battery is secured to the unit with a piece of tape over a small Kevlar patch.
Carefully peel back the tape to remove the patch and set the tape and patch to the
side to be used again on the new battery. Remove the lithium-ion battery carefully.
7.
Insert new battery by aligning the positive (+) end of the battery with the positive (+)
sign on the board. Reinstall the Kevlar patch and tape that was removed in Step 6.
8.
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.
9.
After the I/O circuit board is replaced, replace the I/O back cover by aligning the
screws with the posts.
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 screws are aligned, turn the screw counterclockwise until it “clicks”. Then
turn the screw clockwise until the screw is seated.
12.
Apply power and restore program and registers if necessary.
13.
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.
14.
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.
Once charged, the battery management system will maintain the battery at optimal charge
depending on use and temperature.