Product Line:
Altivar 58

Environment:
All

Cause:
Is Undervoltage fault (USF) latching or non-latching fault on the ATV58?

Resolution:
The undervoltage fault resets when voltage returns to normal range.
The drive can be set up to require a restart signal or to restart automatically based on run command status.
Check the adjustments in the FLt menu check the adjustments for the Atr (Auto Restart), FLr (Catch on Fly) and StP (Controlled Stop) and the adjustments of the tCC (Terminal Strip command type) and tCt (2-wire control type) in the CtL menu to determine how the drive will react to undervoltage.

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