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Soft Phase Alarm (SPHAL)

Fanuc · Alpha i series AC Servo Motor

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A soft phase alarm (SPHAL) was detected. This type of alarm often points to issues with the motor's phase current detection or can be triggered by external electrical noise affecting the control signals.

Vanlige årsaker

  • Electrical noise interfering with phase detection.
  • Potential issues with motor phase current sensing.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Turn the main power OFF.

  2. 2

    Implement noise reduction measures as described in the relevant documentation.

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Verifisert teknisk data. Sist oppdatert: March 2026

Relaterte feilkoder

Kilde: Fanuc Alpha i series AC Servo Motor