How to troubleshoot an Altivar Process Drive with an Input Phase Fault

Issue:
Altivar Process Drive with an Input Phase Fault.

Product Line:
Altivar Process Drive (ATV630, ATV930, ATV650, ATV950, ATV660, ATV960, ATV680, ATV980)

Environment:
All serial numbers for Altivar Process Drive

Cause:
N/A

Resolution:
Principle:

• Loss of one phase on the input side of the drive

Probable cause:

• Drive incorrectly supplied or a tripped fused.
• One phase missing.
• 3-phase drive used on a single-phase supply mains.
• Unbalanced load.

Remedies:

• Check the power connection and the fuses.
• Use a 3-phase supply mains.
• Disable the detected error by [Input phase loss] IPL = [No] nO if single phase supply mains or DC
  bus supply is used for programming only

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