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F3
Power Loss
Allen-Bradley · PowerFlex 4 Adjustable Frequency
¿Qué significa F3 ?
This fault occurs when the drive detects a low voltage condition or an interruption on the incoming AC power line. This can lead to unstable operation or unexpected shutdowns.
Causas comunes
- Complete loss of primary power to the drive.
- Internal power supply failure within the unit.
- Main fuse blown or circuit breaker tripped.
- AC mains supply failure.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Measure the incoming AC line voltage at the drive input terminals (L1, L2, L3) to identify any sag or interruption.
- 2
Verify the integrity of the upstream power supply and circuit breakers feeding the drive.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Allen-Bradley PowerFlex 4 Adjustable Frequency