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    What causes an overcurrent fault or OCF code for ATV61 and ATV71 drive?

    Issue:
    What causes an overcurrent fault OCF for ATV61 and ATV71 drive?

    Product Line:
    ATV61, ATV71, Altivar 61, Altivar 71

    Environment:
    All

    Cause:
    OCF fault trips when the drive hardware current limitation is reached. 

    Resolution:
    Check that the settings for motor frequency, voltage, current and speed match motor nameplate under 1.4 Motor Control menu.
    Check for high inertia or load that is too large. 
    Check for mechanical blockage.
    Monitor the motor current while running under Menu 1.2 Monitoring to see if the motor current is higher than normal. 
     

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