Replacing The Current Transformer; Door Interlock System; Replacing The Precharging Transformer - Siemens Sinamics GM150 6SL3835-2LN44-2AA0 Operating And Installation Instructions

Maintenance
9.5 Repair
9.5.9

Replacing the current transformer

The current transformer may only be replaced by technicians trained by Siemens.
9.5.10

Door interlock system

Contact Technical Support (Page 219) if the door interlock system becomes defective.
9.5.11

Replacing the precharging transformer

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
● Lift the transformer carefully because it is heavy (> 45 kg).
Removing the precharging transformer
1. Detach the 400 V connecting cables
2. Remove the high-voltage cables
3. Release the PE conductor.
4. Remove the fixing screws on the base brackets
5. Remove the transformer.
212
WARNING
supply.
①
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②
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③
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Operating Instructions Rev.201910281250 MUSTER
SINAMICS GM150 6SL3835-2LN44-2AA0