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305
Serial Pulse Coder Miscount Alarm (CMAL)
Fanuc · Alpha i series AC Servo Motor
Hva betyr 305 ?
A miscount alarm (CMAL) was detected for the serial pulse coder, indicating an error in counting pulses. This suggests a problem with the pulse coder's counting mechanism or an intermittent fault.
Vanlige årsaker
- Miscounting of pulses by the serial pulse coder.
Reparasjonssteg & Sjekkliste
Klikk på steg for å spore fremgangen.
- 1
Turn the main power OFF.
- 2
If the alarm recurs when power is re-applied, replace the motor (which contains the pulse coder).
- 3
Even if the alarm does not recur, restart the operation from reference position return to re-establish positional accuracy.
Verifisert teknisk data. Sist oppdatert: March 2026
Relaterte feilkoder
Kilde: Fanuc Alpha i series AC Servo Motor