How do I fix and clear Mazak alarm 240?

Follow the restart procedure correctly. Clearing procedure: Fix cause → press RESET.

WARNINGAlarm code

240

OPERATION RESTART UNFINISHED

Q: What does Mazak alarm 240 mean?

Mazak alarm 240 is "OPERATION RESTART UNFINISHED". When restarting the operation, the cycle start button was pressed before completing the necessary operations. Error type: Operation — wrong key or incorrect operation. Machine state: Feed hold — feed stopped, machine ready.

What it means

When restarting the operation, the cycle start button was pressed before completing the necessary operations.

What to do

1Follow the restart procedure correctly.

Codebook — decoded

AError typeOperation — wrong key or incorrect operation

KStop statusFeed hold — feed stopped, machine ready

OClearingFix cause → press RESET

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

Still stuck? Ask the Mazatrol assistant →