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F3

Power Loss

Allen-Bradley · PowerFlex 4 Adjustable Frequency

Was bedeutet 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.

Häufige Ursachen

  • 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.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Measure the incoming AC line voltage at the drive input terminals (L1, L2, L3) to identify any sag or interruption.

  2. 2

    Verify the integrity of the upstream power supply and circuit breakers feeding the drive.

Alle Codes in diesem Handbuch durchsuchen (24)
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Allen-Bradley PowerFlex 4 Adjustable Frequency