How do I fix and clear Mazak alarm 794?

Reset the B-axis angle for the index unit defined prior to setting the turning drilling unit to either 0 or 180°.

CRITICALAlarm code

794

INCORRECT B AXIS POSITION (WNo., UNo., SNo.)

Q: What does Mazak alarm 794 mean?

Mazak alarm 794 is "INCORRECT B AXIS POSITION (WNo., UNo., SNo.)". For ATC (BA47 = 0) turret type machines with B-axis (BA48 = B), the direction of “part to be machined” set with the turning drilling unit does not match with the B-axis angle set with the index unit. Error type: Registered Data — program or tool data error.

What it means

For ATC (BA47 = 0) turret type machines with B-axis (BA48 = B), the direction of “part to be machined” set with the turning drilling unit does not match with the B-axis angle set with the index unit.

What to do

1Reset the B-axis angle for the index unit defined prior to setting the turning drilling unit to either 0 or 180°.

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 →