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What would cause the ATV212 drive to ramp up to 30hz then display retry and start up all over again?

Issue:
What would cause the ATV212 drive to ramp up to 30hz then display retry and start up all over again?

Product Line:
Altivar ATV212 and ATV21

Environment:
All 

Cause:
Drive is resetting on phase loss or fault and is trying to restart. 

Resolution:
1st check to see if the auto reset is set in parameter F303.  If its one try turning it off to see if the drive will give you a fault on the retry. 
2nd check to see if the input voltage on the Drive is balanced phase to phase and to phase to ground.
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