How do I fix and clear Mazak alarm 931?

1. Review the designated head number. 2. Check if the designated head number is registered on the HEAD OFFSET display.

CRITICALAlarm code

931

NO HEAD DATA (WNo., NNo., BNo.)

Q: What does Mazak alarm 931 mean?

Mazak alarm 931 is "NO HEAD DATA (WNo., NNo., BNo.)". The head number that has been designated in the program is not registered on the HEAD OFFSET display. Error type: Registered Data — program or tool data error.

What it means

The head number that has been designated in the program is not registered on the HEAD OFFSET display.

What to do

11.
2Review the designated head number.
32.
4Check if the designated head number is registered on the HEAD OFFSET display.

Codebook — decoded

BError typeRegistered Data — program or tool data error

I (L)Stop statusunspecified

O (S)Clearingunspecified

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

Still stuck? Ask the Mazatrol assistant →