ABB ACS880 Drive
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Jun 14, 2024 11:36 am
Cause : LSU charging comes when DC link voltage is not high enough after charging due to low input voltage supply or faulty fuses.
- Check parameter 95.1 Supply voltage.
- Check supply voltage and fuses.
- Check the connection from the relay output to the charging contactor.
- Check that the DC voltage measuring circuit is working correctly.
