How do I fix and clear Mazak alarm 903?

Correct the L number in the program.

CRITICALAlarm code

903

ILLEGAL G10 L NUMBER (WNo., NNo., BNo.)

Q: What does Mazak alarm 903 mean?

Mazak alarm 903 is "ILLEGAL G10 L NUMBER (WNo., NNo., BNo.)". An unallowable L number has been designated during input of G10 program command. Error type: Registered Data — program or tool data error.

What it means

An unallowable L number has been designated during input of G10 program command.

What to do

1Correct the L number in the program.

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 →