How do I fix and clear Mazak alarm 140?

Return the axis to the first reference point first. Clearing procedure: Press RESET to clear.

WARNINGAlarm code

140

ILLEGAL REFERENCE RETURN No.

Q: What does Mazak alarm 140 mean?

Mazak alarm 140 is "ILLEGAL REFERENCE RETURN No.". Returning to the second reference point has been commanded in spite of the fact that returning to the first reference point has not yet occurred. Error type: Operation — wrong key or incorrect operation. Machine state: Feed hold — feed stopped, machine ready.

What it means

Returning to the second reference point has been commanded in spite of the fact that returning to the first reference point has not yet occurred.

What to do

1Return the axis to the first reference point first.

Codebook — decoded

AError typeOperation — wrong key or incorrect operation

KStop statusFeed hold — feed stopped, machine ready

PClearingPress RESET to clear

Still faulted after these steps? Do not restart under load — ask the Mazatrol assistant.

Still stuck? Ask the Mazatrol assistant →