Mitsubishi Electric Q26UD(E)HCPU User Manual page 260

(4) Replacement procedure of the Q8BAT battery
Replacing battery
Backup the program and the data.
Turn off the programmable controller
power supply.
2)
Confirm
the type of the old
battery.
Q6BAT/Q7BAT to
be replaced by
Q8BAT.
Remove the CPU module from the
base unit.
Remove the cover/battery holder at
the bottom of the CPU module.
Disconnect the battery connector, and
pull out the Q6BAT/Q7BAT. *
Connect the Q8BAT connection cable
to the connector of the CPU module.
(To next page)
*1 Remove the battery connector with holding the connector part so that the battery cable may not be damaged.
258
Q8BAT to be replaced by Q8BAT.
Connector
of CPU module
Connector
of battery
1
CPU module
Backup time
3 minutes
Remove the Q8BAT from the control
panel.
Remove the Q8BAT connection
cable from the Q8BAT.
Connect the Q8BAT connection
cable to the new Q8BAT.
Install the new Q8BAT to the control
*2
panel.
screw or fixing with the DIN rail is
Q6BAT
CPU module
(Fixing with a mounting
1)
Connector
of cable
Q8BAT
connection
Connector
of CPU module
Q8BAT
connection
cover
cable