How do I fix and clear Mazak alarm 640?

Review the machining program and set an allowable angle of index.

CRITICALAlarm code

640

ILLEGAL INDEX ANGLE INPUT (WNo., UNo., SNo.)

Q: What does Mazak alarm 640 mean?

Mazak alarm 640 is "ILLEGAL INDEX ANGLE INPUT (WNo., UNo., SNo.)". The data that has been set in the angle item of the indexing unit is that which cannot be divided by the parameter L37 setting (minimum allowable angle of index). Error type: Registered Data — program or tool data error.

What it means

The data that has been set in the angle item of the indexing unit is that which cannot be divided by the parameter L37 setting (minimum allowable angle of index).

What to do

1Review the machining program and set an allowable angle of index.

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 →