How do I fix and clear Mazak alarm 642?

Review the machining program and make sure of the pallet numbers.

CRITICALAlarm code

642

ILLEGAL NEXT PALLET No. INPUT (WNo., UNo., SNo.)

Q: What does Mazak alarm 642 mean?

Mazak alarm 642 is "ILLEGAL NEXT PALLET No. INPUT (WNo., UNo., SNo.)". The same pallet number as the current pallet number has been set as the next one. Error type: Registered Data — program or tool data error.

What it means

The same pallet number as the current pallet number has been set as the next one.

What to do

1Review the machining program and make sure of the pallet numbers.

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 →