How do I fix and clear Mazak alarm 320?

1. Stop the milling spindle. 2. Stop the turning spindle. 3. Move the milling spindle out of the ATC cover by retracting the Z-axis. Clearing procedure: Fix cause → press RESET.

ALARMSMazatrol Assistant

CRITICALAlarm code

320

B AXIS ROTATION INHIBIT

Q: What does Mazak alarm 320 mean?

Mazak alarm 320 is "B AXIS ROTATION INHIBIT". An axis movement key was pressed under one of the following conditions. 1. The milling spindle was not at a stop. 2. The turning spindle was not at a stop. 3. The ATC cover was open and the milling spindle was inside the ATC cover with the Z-axis advanced. Error type: Operation — wrong key or incorrect operation. Machine state: Operation continued — machine still running.

What it means

An axis movement key was pressed under one of the following conditions. 1. The milling spindle was not at a stop. 2. The turning spindle was not at a stop. 3. The ATC cover was open and the milling spindle was inside the ATC cover with the Z-axis advanced.

What to do

11.
2Stop the milling spindle.
32.
4Stop the turning spindle.
53.
6Move the milling spindle out of the ATC cover by retracting the Z-axis.

Codebook — decoded

AError typeOperation — wrong key or incorrect operation

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 →