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SP9072

MISMATCH RESULT OF MOTOR SPEED CHECK

Fanuc · Alpha i Series Servo Amplifier

¿Qué significa SP9072 ?

The spindle detected a mismatch between the CNC result of the motor speed check and the spindle's own result. This indicates a discrepancy in speed monitoring data between the CNC and the spindle control, suggesting a potential fault in the SPM control printed-circuit board.

Causas comunes

  • The calculated motor speed does not match the monitored actual speed.
  • Faulty tachometer or encoder providing incorrect speed feedback.
  • Discrepancy in speed calculation algorithms between two monitoring points.
  • High vibration or mechanical resonance affecting speed measurement.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Replace the SPM control printed-circuit board.

Ver todos los códigos en este manual (101)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: Fanuc Alpha i Series Servo Amplifier