9.5.10 Door interlock system
Contact Technical Support (Page 205) if the door interlock system becomes defective.
9.5.11 Replacing the precharging transformer
WARNING
Danger to life as a result of incorrect replacing the precharging transformer
Replacing the precharging transformer incorrectly can result in death, serious injury, or
material damage.
● Follow "the five safety rules (Page 17)".
● Before replacing the precharging transformer, open the safety disconnector for the 400 V
supply.
● Lift the transformer carefully because it is heavy (> 45 kg).
Removing the precharging transformer
1. Detach the high-voltage cables ①.
2. Detach the 400 V connecting cables ②.
3. Detach the grounding cable ③.
4. Remove the fixing screws ④ at the front and rear on the base brackets.
5. Remove the transformer.
Maintenance
9.5 Repair
SINAMICS GM150 6SL3810-2LN31-8AA2
Operating Instructions Rev.201910281332 EXAMPLE 197
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