What does Mazak alarm 340 mean?

Mazak alarm 340 is "ATC CONTROLLER MALFUNCTION". The alarm for the ATC arm servo driver was raised. Error type: Servo — servo control mechanism malfunction. Machine state: Single-block stop — stopped at a block.

How do I fix and clear Mazak alarm 340?

1. Press the RESET key. 2. Turn the main power disconnect switch off and then back on. If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center.

ALARMSMazatrol Assistant

CRITICALAlarm code

340

ATC CONTROLLER MALFUNCTION

What it means

The alarm for the ATC arm servo driver was raised.

What to do

11.
2Press the RESET key.
32.
4Turn the main power disconnect switch off and then back on.
5If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center.

Codebook — decoded

CError typeServo — servo control mechanism malfunction

JStop statusSingle-block stop — stopped at a block

O, QClearingunspecified

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

Still stuck? Ask the Mazatrol assistant →