What does Mazak alarm 312 mean?

Mazak alarm 312 is "CHUCK FOOT SWITCH MALFUNCTION". Something is wrong with the foot switch for opening/closing the spindle chuck. Error type: Machine (PLC) — machine failure. Machine state: Operation continued — machine still running.

How do I fix and clear Mazak alarm 312?

1. Turn the main power disconnect switch off. 2. Check the microswitch in the foot switch for functioning and the wires for breaks and short circuits. If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center. Clearing procedure: Fix cause → press RESET.

ALARMSMazatrol Assistant

NOTICEAlarm code

312

CHUCK FOOT SWITCH MALFUNCTION

What it means

Something is wrong with the foot switch for opening/closing the spindle chuck.

What to do

11.
2Turn the main power disconnect switch off.
32.
4Check the microswitch in the foot switch for functioning and the wires for breaks and short circuits.
5If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center.

Codebook — decoded

FError typeMachine (PLC) — machine failure

LStop statusOperation continued — machine still running

OClearingFix cause → press RESET

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

Still stuck? Ask the Mazatrol assistant →