Traduciendo...
Alarm 2
Software Disconnection (Closed Loop)
Fanuc · Alpha i Series Servo Amplifier
¿Qué significa Alarm 2 ?
This alarm is issued when the change in position feedback pulses is relatively small for the change in velocity feedback pulses. This condition typically occurs in a closed-loop system and is not issued with the semi-closed loop.
Causas comunes
- The closed-loop control system has lost its feedback signal.
- Software error preventing the system from establishing a closed loop.
- Encoder or sensor is not providing valid position data.
- Communication failure with the position feedback device.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Check whether the separate detector outputs position feedback pulses correctly.
- 2
If the detector outputs pulses correctly, investigate for a large backlash between the motor position and scale position causing reverse rotation of only the motor at the start of machine operation.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Fanuc Alpha i Series Servo Amplifier