What does Mazak alarm 301 mean?

Mazak alarm 301 is "CHILLER UNIT MALFUNCTION". Something is wrong with the hydraulic chiller unit. Error type: Machine (PLC) — machine failure. Machine state: Feed hold — feed stopped, machine ready.

How do I fix and clear Mazak alarm 301?

1. Check the chiller unit filter for clogging. 2. Check the chiller unit in accordance with its operating manual. 3. Check if the thermal relays of the circuit breakers and electromagnetic switches in the chiller unit control panel have tripped. If a tripped circuit breaker is found, turn it back on. If the thermal relay of an electromagnetic switch is found to have tripped, press the RESET button of the tripped thermal relay. If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center.

ALARMSMazatrol Assistant

WARNINGAlarm code

301

CHILLER UNIT MALFUNCTION

What it means

Something is wrong with the hydraulic chiller unit.

What to do

11.
2Check the chiller unit filter for clogging.
32.
4Check the chiller unit in accordance with its operating manual.
53.
6Check if the thermal relays of the circuit breakers and electromagnetic switches in the chiller unit control panel have tripped.
7If a tripped circuit breaker is found, turn it back on.
8If the thermal relay of an electromagnetic switch is found to have tripped, press the RESET button of the tripped thermal relay.
9If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center.

Codebook — decoded

FError typeMachine (PLC) — machine failure

KStop statusFeed hold — feed stopped, machine ready

O, QClearingunspecified

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

Still stuck? Ask the Mazatrol assistant →