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11.3 Battery Life and Replacement Procedure
11.3.5 SRAM card CPU module battery replacement procedure
11
MAINTENANCE AND INSPECTION
11.3.5 SRAM card CPU module battery replacement procedure
Replace the SRAM card battery in the following procedure.
(1) Procedures for replacing battery of Q2MEM-1MBS or Q2MEM-2MBS
Diagram 11.7 SRAM card CPU module battery replacement procedure
Bit 1 and bit 2 are OFF.
Monitor
SM52 to verify on/off.
Monitor
SD52 to check if bit 1 and bit
2 are ON.
Replacing battery
Open the front cover while the
programmable controller power
supply is on.
Remove the battery holder
from the SRAM card.
Remove the old battery from its
holder.
Insert a new battery into the
holder in the correct direction.
Check that the battery holder
fixing switch is set to the LOCK
position.
With a flat-blade screwdriver, etc.,
remove the battery holder locking
switch from the LOCK position.
Completed
OFF
ON
Bit 1 and bit 2 are ON.
Deeply insert the SRAM card
into the battery holder.
Battery holder
fixing switch
CPU module
main unit
CPU module
main unit
Flat blade
screwdriver
Release
direction
CPU module
main unit
Battery holder
Used battery
New battery
CPU module
main unit
Put + toward you.
Backup the program and the
data.
Failure of SRAM card battery
* : 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.
*
Lock
direction
Battery holder
fixing switch