Phase W to Ground Fault

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A phase-to-ground fault has been detected between the drive and motor on output phase W. This indicates a severe insulation breakdown or short circuit between phase W and earth ground, posing a safety hazard and risk of equipment damage.

• Short circuit detected between Phase W and ground.
• Damaged insulation on Phase W motor winding.
• Faulty Phase W output cable connection to ground.
• Ground fault within the drive's output circuitry for Phase W.

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1. 1

   Check the wiring between the drive output terminal W and the motor for a grounded condition.

2. 2

   Check the motor winding for a grounded condition on phase W.

3. 3

   Replace the drive if wiring and motor are verified good.