What does Mazak alarm 438 mean?

Mazak alarm 438 is "END UNIT NOT FOUND". The end unit is not included in the machining program. Error type: Operation — wrong key or incorrect operation. Machine state: Operation continued — machine still running.

How do I fix and clear Mazak alarm 438?

Create the end unit at the end of the program. Clearing procedure: Tap alarm clear button.

ALARMSMazatrol Assistant

NOTICEAlarm code

438

END UNIT NOT FOUND

What it means

The end unit is not included in the machining program.

What to do

1Create the end unit at the end of the program.

Codebook — decoded

AError typeOperation — wrong key or incorrect operation

LStop statusOperation continued — machine still running

SClearingTap alarm clear button

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

Still stuck? Ask the Mazatrol assistant →