Usf troubleshooting answers
1 question with answers cited from the manufacturer manuals.
- 0ATV320 USF fault, supply undervoltage, what to check first?
The USF fault on a Schneider Altivar ATV320 drive indicates a supply mains undervoltage. This can be caused by the supply voltage being too low, transient voltage dips, or the loss of two or three input phases. The error…