How do I fix and clear Mazak alarm 639?

Review the machining program and set an allowable pallet number.

CRITICALAlarm code

639

DESIGNATED PALLET NOT FOUND (WNo., UNo., SNo.)

Q: What does Mazak alarm 639 mean?

Mazak alarm 639 is "DESIGNATED PALLET NOT FOUND (WNo., UNo., SNo.)". The pallet number that has been set in the pallet changing unit is larger than the maximum allowable number of pallets set in the parameter L46. Error type: Registered Data — program or tool data error.

What it means

The pallet number that has been set in the pallet changing unit is larger than the maximum allowable number of pallets set in the parameter L46.

What to do

1Review the machining program and set an allowable pallet number.

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 →