Maintenance
11.3 Replacing the back-up battery in the AOP30 operator panel
SINAMICS DCM DC Converter
702
Operating Instructions, 12/2018, A5E34763375A
●
Insert the protective cover
⑤
so that the mounting sockets below it are covered.
●
Hold the new CUD at an angle of 10° to 15° at the connector and parallel to the side
wall
⑥
.
●
Press the CUD onto the terminal strip
⑦
.
●
Pull out the mounting aid
⑧
.
●
Screw the CUD tight and attach all the components again that were removed from the old
CUD. Reconnect the connections.
Replacement/installation of a CUD in the right slot
A CUD is installed in the right slot in the same way as in the left slot.
For simple handling, it is recommended that you swing out the electronics plate slightly.
Make sure that the mounting sockets are covered by the mounting aid.
11.3
Replacing the back-up battery in the AOP30 operator panel
Table 11- 1 Technical specifications of the backup battery
Type
CR2032 3 V lithium battery
Manufacturer
Maxell, Sony, Panasonic
Nominal capacity
220 mAh
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 (during operation)
> 2 years
Replacement
1.
Disconnect the SINAMICS DCM from the power supply
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.
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