39

Phase V Fault

Allen-Bradley · 160 AC Drive

What does 39 mean?

This fault indicates a phase-to-ground fault has been detected specifically on the 'V' phase wiring between the controller and the motor. This could be due to damaged insulation or a direct short. Such a fault poses an electrical safety hazard and can damage both the controller and motor if unresolved.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check for moisture or foreign objects in the motor terminal box or wiring conduit.

Source: Allen-Bradley 160 AC Drive
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