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385

SERIAL DATA ERROR(EXT)

Fanuc · Series 30i/31i/32i-MODEL B Plus

¿Qué significa 385 ?

This external alarm indicates an interruption in serial communication from the separate detector, potentially due to a disconnected cable, noise, or detector failure. Communication loss means the control unit cannot reliably monitor the detector's position.

Causas comunes

  • Communication interruption with the separate detector
  • Cable disconnection for the separate detector
  • Noise interfering with serial data transmission
  • Separate detector failure

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check whether the feedback cable is not disconnected and whether the connector is properly plugged.

  2. 2

    Check CNC diagnosis information No.356 (Built-in detector) and No.357 (Separate detector) for incremented values, which indicate noise effects. The value is cleared when the CNC unit is powered off.

  3. 3

    Replace the detector.

Ver todos los códigos en este manual (38)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Fanuc Series 30i/31i/32i-MODEL B Plus