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.
- 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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