Siemens AOP30 - Page 68

Maintenance and servicing
5.1 Replacing the backup battery
Cabinet Modules Operator Panel AOP30
68 Operating Instructions, 04/2014, A5E03263551A
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. Carry out any other work by reversing the sequence.
Table 5- 1 Technical data 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 20 °C 1%/year
Service life (in backup mode)
> 1 year at 70 °C > 1.5 years at 20 °C
Service life (in operation)
> 2 years
Note
You must repl
ace the battery within one minute; otherwise, the AOP settings may be lost.
Note
The battery must be disposed of in accordance with the applicable country
-specific
guidelines and regulations.