ABB ACS880-7407LC Hardware Manual page 42

Semiconductor switch units
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42 Maintenance
1. Stop the drive and do the steps in section
Electrical safety precautions (page
24).
2. Open the door of the cubicle.
3. Remove the shrouds at the top and bottom of the cubicle (option +C121).
4. Disconnect any cabling from the control interface of the DC breaker switch (on top).
Mark down the connections for later use.

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