How do I fix and clear Mazak alarm 315?

1. Adjust the chuck pressure and the pressure monitoring switch pressure. 2. Check the hydraulic system of the chuck. 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

315

CHUCK PRESSURE LOW

Q: What does Mazak alarm 315 mean?

Mazak alarm 315 is "CHUCK PRESSURE LOW". A chuck pressure drop was detected on a machine equipped with the spindle chuck pressure monitoring function. Error type: Machine (PLC) — machine failure. Machine state: Feed hold — feed stopped, machine ready.

What it means

A chuck pressure drop was detected on a machine equipped with the spindle chuck pressure monitoring function.

What to do

11.
2Adjust the chuck pressure and the pressure monitoring switch pressure.
32.
4Check the hydraulic system of the chuck.
5If 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 →