Replacing The Backup Battery For The Cabinet Operator Panel - Siemens SINAMICS G150 Operating Instructions Manual

Maintenance and servicing
11.4 Replacing components
11.4.16

Replacing the Backup Battery for the Cabinet Operator Panel

Table 11- 2
Type
Manufacturer
Nominal capacity
Self-discharge at 20 °C
Service life (in backup mode)
Service life (in operation)
Replacement
1. Switch the unit into a no-voltage condition.
2. Open the cabinet.
3. Disconnect the 24 V DC power supply and communications line on the operator panel.
4. Open the cover of the battery compartment.
5. Remove the old battery.
6. Insert the new battery.
7. Close the cover of the battery compartment.
8. Reconnect the 24 V DC power supply and communications line.
9. Close the cabinet.
NOTICE
The battery must be replaced within one minute to ensure that no AOP settings are lost.
572
Technical specifications of the backup battery
CR2032 3 V lithium battery
Maxell, Sony, Panasonic
220 mAh
1 %/year
> 1 year at 70 °C; >1.5 years at 20 °C
> 2 years
Operating Instructions, 03/2012, A5E03263466A
Converter cabinet units