How do I fix and clear Mazak alarm 687?

Review the machining program and set the coordinates of the ending point of the free shape.

CRITICALAlarm code

687

NO FINISH POINT (WNo., UNo., SNo.)

Q: What does Mazak alarm 687 mean?

Mazak alarm 687 is "NO FINISH POINT (WNo., UNo., SNo.)". During input of free-shape data (open-figure data) to the line-machining unit, “?” has been set as the definition of the ending point. Error type: Registered Data — program or tool data error.

What it means

During input of free-shape data (open-figure data) to the line-machining unit, “?” has been set as the definition of the ending point.

What to do

1Review the machining program and set the coordinates of the ending point of the free shape.

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 →