What does Mazak alarm 339 mean?

Mazak alarm 339 is "ATC COVER ACT.TIME OVER". The operation of the ATC cover is not completed within 30 seconds. Error type: Machine (PLC) — machine failure. Machine state: Feed hold — feed stopped, machine ready.

How do I fix and clear Mazak alarm 339?

1. Check for chips or other foreign substances that obstruct the operation of the ATC cover. 2. Check the compressed air system. Clearing procedure: Fix cause → press RESET.

ALARMSMazatrol Assistant

WARNINGAlarm code

339

ATC COVER ACT.TIME OVER

What it means

The operation of the ATC cover is not completed within 30 seconds.

What to do

11.
2Check for chips or other foreign substances that obstruct the operation of the ATC cover.
32.
4Check the compressed air system.

Codebook — decoded

FError typeMachine (PLC) — machine failure

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 →