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Figure 9-1 Replacing The Backup Battery - Siemens SINAMICS SM120 Operating Instructions Manual

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Service life in the backup mode
Service life in operation
Replacing the backup battery
1. Switch off the main circuit-breaker.
2. Open the cabinet.
3. Disconnect the 24 VDC power supply and communications line on the operator panel.
4. Open the cover of the battery compartment.
5. Remove the old battery.
6. Insert a new battery.
7. Close the cover of the battery compartment.
8. Reconnect the 24 VDC power supply and communications line.
9. Close the cabinet.
Figure 9-1
Note
Dispose of the battery in accordance with the applicable country-specific laws and regulations.
Set date and time
1. Using the "MENU" key, select the main menu of the AOP 30.
2. Using "F2", select the menu item "Commissioning/service". Confirm with "F5"
SINAMICS SM120 6SL38715
Operating Instructions 07/2015
Note
To ensure that no data is lost during a battery replacement, it must be replaced within one
minute.
If the time is exceeded, the AOP settings and input screen texts are reloaded from the
CompactFlash card by a restart of the AOP with a connection to the drive.
Set the clock to the new time.
Replacing the backup battery
> 1 year at 70° C; >1.5 years at 20° C
> 2 years
Maintenance
9.5 Maintenance
89

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