Siemens SINAMICS S120 - Page 324

Maintenance and servicing
6.4 Replacing components
Cabinet Modules NEMA
324 Manual, 04/2014, A5E03586450A
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 Technical specifications for the backup battery
Type
CR2032 3 V lithium battery
Manufacturer
Maxell, Sony, Panasonic
Nominal capacity
220 mAh
Maximum permissible charging current
10 mA (restricted to < 2 mA in operator panel)
Self-discharge at 68 °F (20 °C) 1 %/year
Service life (in backup mode) > 1 year at 158 °F (70 °C); >1.5 years at 68 °F
(20 °C)
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
.