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ATV12 what would cause the drive to show ULF Underload Fault?

Issue:
ATV12 what would cause the drive to show ULF Underload Fault

Product Line:
Altivar ATV12

Environment:
All

Cause:
Programming

Resolution:
Under [ConF] > [FULL] > [I_0-] > [ULt] Underload monitoring was set to 3s.  If you do not want that monitored set back to 0s.
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