1. Pull out the connector ②.
2. Remove the screws ① from the roof hood (4x). Remove the roof cover.
3. Remove the fan. Remove the fastening screws and nuts ③ of the fan.
4. Remove the jumper at the terminal strip KL3 between connection 3 and 4 in the terminal
box of the defective fan.
5. Insert the jumper in the new fan.
Installing the fan
Install the new fan in reverse order.
9.5.2 Replacing the back-up battery of the AOP30 operator panel
Table 9-1 Technical specifications of the backup battery
Type CR2032 3V lithium battery
Manufacturer Maxell, Sony, Panasonic
Nominal capacity 220 mAh
Maximum permissible charging current 10 mA, limited to < 2 mA in the operator panel
Self-discharge at 20° C 1%/year
Service life in the backup mode > 1 year at 70° C; >1.5 years at 20° C
Service life in operation > 2 years
Replacing the backup battery
1. Switch off the main circuit-breaker.
2. Open the cabinet.
3. Disconnect the 24 VDC power supply and communications line on the operator panel.
4. Open the cover of the battery compartment.
5. Remove the old battery.
6. Insert a new battery.
7. Close the cover of the battery compartment.
Maintenance
9.5 Maintenance
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017 205