What does Mazak alarm 300 mean?

Mazak alarm 300 is "BREAKER TRIP". A circuit breaker in the control panel has tripped. Error type: Machine (PLC) — machine failure. Machine state: Feed hold — feed stopped, machine ready.

How do I fix and clear Mazak alarm 300?

1. Press the RESET key. 2. Turn the main power disconnect switch off. 3. Check all circuit breakers in the control panel to see if they have tripped. If a tripped circuit breaker is found, turn it back on. If the alarm is not released, contact the nearest Mazak Technical Center or Technology Center. Clearing procedure: Fix cause → press RESET.

ALARMSMazatrol Assistant

CRITICALAlarm code

300

BREAKER TRIP

What it means

A circuit breaker in the control panel has tripped.

What to do

11.
2Press the RESET key.
32.
4Turn the main power disconnect switch off.
53.
6Check all circuit breakers in the control panel to see if they have tripped.
7If a tripped circuit breaker is found, turn it back on.
8If 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

OClearingFix cause → press RESET

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

Still stuck? Ask the Mazatrol assistant →