F041
Phase UV Short
Allen-Bradley · PowerFlex 520-series Adjustable Frequency AC Drive
What does F041 mean?
Excessive current has been detected between the drive's U and V output terminals, indicating a short circuit. This could be a phase-to-phase short in the motor windings or within the cables connecting the drive to the motor. This is a critical fault that can cause severe damage to the drive's output power stage (IGBTs) if not immediately addressed.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
If the motor and wiring are clear, but the fault persists upon reconnection, replace the drive as an internal short circuit in the power section may exist.
Source: Allen-Bradley PowerFlex 520-series Adjustable Frequency AC Drive
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