Mitsubishi Q01CPU User Manual page 320

11
MAINTENANCE AND INSPECTION
11
- 32 11.3 Battery Life and Replacement Procedure
11.3.5 SRAM card CPU module battery replacement procedure
POINT
Be careful about the following to replace the SRAM card battery.
1. To back up the data, replace the SRAM card battery with the programmable
controller power supply ON and the SRAM card installed.
2. Start replacement after backing up the CPU module data using GX Developer.
3. Since replacement is made with the programmable controller power supply
ON, take extreme care not to get an electric shock.
4. When dismounting or mounting the battery holder on the SRAM card, take
care so that the battery does not come out of the battery holder.
5. When replacing the battery with the programmable controller power supply
OFF, always back up the data before starting replacement.
[Battery replacement procedure]
1) Back up the SRAM card data using GX Developer.
2) Replace the battery.
3) Write the backed up data from GX Developer to the memory card.
Insert or remove the battery in the horizontal direction along the battery holder
fixing guide.
Failure to do so may damage the latches of the battery holder.
Battery holder latches
6. If a battery of the SRAM card is hard to replace, use of the following tweezers
is recommended.
Product
Plastic tweezers
Diagram 11.10 Replacement of battery using prastic tweezers
Battery fixing guide
Battery holder
Diagram 11.9 Battery setting direction
Table11.13 Tweezers for replacing battery
Model name
NK-2539