What does Mazak alarm 72 mean?

Mazak alarm 72 is "SERVO WARNING". The servomotor is loaded abnormally. The inertia has become excessive. Error type: NC Equipment — system hardware/software error. Machine state: Emergency stop — machine fully stopped.

How do I fix and clear Mazak alarm 72?

Turn off the NC and the machine, remove the cause of the abnormal load, and then turn on the machine and the NC. Contact the nearest Mazak Technical Center or Technology Center if the alarm is not cleared. Note : 1. If this alarm is displayed after replacing the workpiece, the situation may be improved by executing the inertia estimation function. 2. If this alarm occurs when resetting the emergency stop state, press and hold the RESET key for 0.5 seconds or longer. Clearing procedure: Fix cause → press RESET.

ALARMSMazatrol Assistant

CRITICALAlarm code

SERVO WARNING

What it means

The servomotor is loaded abnormally. The inertia has become excessive.

What to do

1Turn off the NC and the machine, remove the cause of the abnormal load, and then turn on the machine and the NC.
2Contact the nearest Mazak Technical Center or Technology Center if the alarm is not cleared.
3Note : 1.
4If this alarm is displayed after replacing the workpiece, the situation may be improved by executing the inertia estimation function.
52.
6If this alarm occurs when resetting the emergency stop state, press and hold the RESET key for 0.5 seconds or longer.

Codebook — decoded

EError typeNC Equipment — system hardware/software error

HStop statusEmergency stop — machine fully stopped

OClearingFix cause → press RESET

Still faulted after these steps? Do not restart under load — ask the Mazatrol assistant.

Still stuck? Ask the Mazatrol assistant →