Mitsubishi Electric Melsec-Q172DCPU User Manual page 201

6 INSPECTION AND MAINTENANCE
Turn ON the Multiple CPU system
power supply.
Disconnect the lead connector from
the battery connector. Remove the
old battery from its holder. (Battery
error occurs. ("BT2" is displayed))
Install a new battery into the holder in
the correct direction. Connect the
lead connector to the connector
(BATTERY).
Cancel the battery error by one of the
following methods.
(b) Q173DCPU(-S1)/Q172DCPU(-S1) battery replacement procedure
Replacing Battery
Turn ON the Multiple CPU system
power supply again, or reset.
Turn the Motion error detection flag
(M2039) from ON to OFF.
END
<Battery holder unit(Q170DBATC)>
Lead wire
M IT SU BIS H I
LITHIU M BATTERY
Battery(Q6BAT)
6 - 12
Battery connector for Q6BAT