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What does a PHF or phase loss fault mean on an ATV312 drive?

Issue:
What does a PHF or phase loss fault mean on an ATV312 drive?

Product Line:
Altivar

Environment:
All

Cause:
Loss of input voltage on LI1, LI2 or LI3

Resolution:

  • Check for phase loss or phase imbalance.
  • Check the Line voltage power,  input connections and or fuses.
  • Check to see if you are single phasing the input on the drive.
  • Reset the drive.
  • Disable the detection by setting input phase loss to "No."  ( if single phase input voltage )
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