3: I
NSTALLATION
AND
W
IRING
3-34 FC6A S
ERIES
MICROS
MART
U
SER
’
S
M
ANUAL
FC9Y-B1722
Replacing the Backup Battery
This section explains how to replace the backup battery.
Replacing the Backup Battery While Unpowered (Recommended)
To replace the backup battery, first turn off the power, and then perform the following steps 1 to 4 within 1 minute.
(The position of the battery holder is located on the right side of the top of the All-in-One CPU module and CAN J1939 All-in-One
CPU module, and it is located on the left side of the top of the Plus CPU module.)
1. Grip both ends of the battery holder, and then pull it out.
The battery holder pulls out to a length of 36 mm.
2. Remove the dead backup battery from the battery holder.
Orient the battery holder with the side facing up. While pulling on the outside hook (1), press the backup battery from
below (2).
Performing the work to attach and replace the backup battery in the unpowered state is recommended to avoid electric
shock by touching the product and wired parts with the body or tools and to avoid damage to the product and malfunction.
The backup battery can also be attached and replaced while powered and while power is supplied from the USB bus.
However, first discharge any static electricity built up in the body by touching grounded metal before performing the work.
Use caution so that electric shock from touching the product and wired parts with the body or tools, damage to the product,
and malfunction do not occur.
Warning
All-in-One CPU Module
CAN J1939 All-in-One CPU Module
Plus CPU Module
Battery Holder
Backup Battery
Side of the Battery Holder
Outside Hook
(2)
(2)
(1)
(1)
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