How do I fix and clear Mazak alarm 787?

Temporarily cancel the mode of “2 Workpiece” machining to execute the required workpiece transfer.

CRITICALAlarm code

787

DBL SPDL OPER ILLEGAL TRANSFER (WNo., UNo., SNo.)

Q: What does Mazak alarm 787 mean?

Mazak alarm 787 is "DBL SPDL OPER ILLEGAL TRANSFER (WNo., UNo., SNo.)". There is a workpiece transfer unit inserted in the flow of “2 Workpiece” machining. Error type: Registered Data — program or tool data error.

What it means

There is a workpiece transfer unit inserted in the flow of “2 Workpiece” machining.

What to do

1Temporarily cancel the mode of “2 Workpiece” machining to execute the required workpiece transfer.

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 →