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    What can cause an motor short circuit SCF5 on an ATV61 or ATV71 drive?

    Issue:
    What can cause an motor short circuit SCF5 on an ATV61 or ATV71 drive?

    Environment:
    All

    Cause:
    SCF5= Motor short circuit fault = Short-circuit at drive output

    Resolution:
    Check the motor cables connecting the drive to the motor.
    Check the motor’s insulation. Using a 1,000V Megger, test the motor for windings or insulation issues.
    Recheck all motor parameters. Be sure that your parameters match the information on the motor's nameplate.
    Perform tests via the [1.10 DIAGNOSTICS] menu.
    Run the drive open circuit (with the motor disconnected and OPL turned off) and check the drive's output terminals for balanced voltages phase to phase
    Inspect and repair the drive.

     

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