1682
Category: Alarm
Cause
- Poor three-phase input cable contact;
- Phase loss fault: with main power ON, the voltage of one of the R\S\T phases remains too low for at least 1 second
- A drive rated 1KW or above is supplied by single-phase 220VAC input
Corrective action
- Check that the three-phase power input cable connections are secure (observe safety; do not work on energized equipment);
- Measure each phase voltage of the three-phase supply and ensure that the input phases are balanced or that the input supply voltage meets specifications
- Set parameter P06.30 to 1 to mask this alarm