Mitsubishi Electric MELCEC Q Series User Manual page 117

7. MEMORY CARD AND BATTERY
Battery replacement
Back up the program and data
Open the front cover of QCPU-A
while it is turned on.
Slide the battery holder fixing switch
upward to release from the "LOCK"
position with a flat-blade screwdriver.
Extract the battery holder
from the SRAM card.
Remove the current battery
from the battery holder.
Insert the new battery in the proper
orientation into the battery holder.
Fully insert the battery holder into
the SRAM card and check that the
battery holder fixing switch is set to
"LOCK" position.
Monitor
M9048 to check whether it
is on or off.
ON
Monitor
M9006 to check whether it
is on or off.
ON
The battery in the CPU module is defective.
Refer to Section7.7.2 (1).
Battery holder
OFF
OFF
Completion
7 - 13
RELEASE
Battery holder
fixing switch
CPU module
Used battery
New battery
"+" faces this side.
LOCK
Battery holder
fixing switch
The battery holder fixing switch is
*:
automatically set to the "LOCK" position
when the battery holder is removed. In its
position, insert the battery holder to the end.
CPU module
Flat-blade
screwdriver
CPU module
CPU module