How do I fix and clear Mazak alarm 552?

Since the machining program has already been loaded, the PROGRAM display must be called and then one of the above three end M-codes must be inserted in the program. Clearing procedure: Tap alarm clear button.

ALARMSMazatrol Assistant

NOTICEAlarm code

552

PROGRAM END NOT FOUND

Q: What does Mazak alarm 552 mean?

Mazak alarm 552 is "PROGRAM END NOT FOUND". A machining program in which EOR precedes the end M-code (M02, M30 or M99) or the next O number (work number) was loaded. The end-of-program condition can be changed by varying the settings of the parameter (TAP27). Error type: Operation — wrong key or incorrect operation. Machine state: Operation continued — machine still running.

What it means

A machining program in which EOR precedes the end M-code (M02, M30 or M99) or the next O number (work number) was loaded. The end-of-program condition can be changed by varying the settings of the parameter (TAP27).

What to do

1Since the machining program has already been loaded, the PROGRAM display must be called and then one of the above three end M-codes must be inserted in 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 →