How do I fix and clear Mazak alarm 679?

Review the machining program and check the value of corner R of the free shapes.

CRITICALAlarm code

679

CONNECTING CORNER IMPOSSIBLE (WNo., UNo., SNo.)

Q: What does Mazak alarm 679 mean?

Mazak alarm 679 is "CONNECTING CORNER IMPOSSIBLE (WNo., UNo., SNo.)". The figures cannot be connected smoothly at corner R because of contradiction in the data of corner R or in the data of the figures in front and rear of corner R. Error type: Registered Data — program or tool data error.

What it means

The figures cannot be connected smoothly at corner R because of contradiction in the data of corner R or in the data of the figures in front and rear of corner R.

What to do

1Review the machining program and check the value of corner R of the free shapes.

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 →