Siemens SINAMICS S120 Device Manual page 324

Maintenance and servicing
6.4 Replacing components
Replacement
1. Disconnect the 24 V DC power-supply cable.
2. Disconnect the communication cable on the operator panel.
3. Open the cover of the battery compartment.
4. Remove the old battery.
5. Insert the new battery.
6. Complete the procedure by carrying out the above actions in reverse order.
Table 6- 4
Type
Manufacturer
Nominal capacity
Maximum permissible charging current
Self-discharge at 68 °F (20 °C)
Service life (in backup mode)
Note
Time for replacing the battery
The battery should be replaced within one minute to ensure that no AOP settings are lost.
Note
Battery disposal
The battery must be disposed of in accordance with the applicable country-specific
guidelines and regulations.
324
Technical specifications for the backup battery
CR2032 3 V lithium battery
Maxell, Sony, Panasonic
220 mAh
10 mA (restricted to < 2 mA in operator panel)
1 %/year
> 1 year at 158 °F (70 °C); >1.5 years at 68 °F
(20 °C)
Manual, 04/2014, A5E03586450A
Cabinet Modules NEMA