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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
Check whether the feedback cable is not disconnected and whether the connector is properly plugged.
- 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
Replace the detector.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Fanuc Series 30i/31i/32i-MODEL B Plus