How do I fix and clear Mazak alarm 1991?

Review and correct the program.

CRITICALAlarm code

1991

NOT POSSIBLE CROSS MACHINING (WNo., NNo., Cause)

Q: What does Mazak alarm 1991 mean?

Mazak alarm 1991 is "NOT POSSIBLE CROSS MACHINING (WNo., NNo., Cause)". During the tool path check, the system in which the crossing command was set and/or the remote system for which the crossing command was to be executed has been set to the following status: 1: The specified axis does not exist in the remote system. 2: The local system is specified as the system for which the crossing command was to be executed. 4: A crossing control command is set for the axis currently undergoing the crossing command. 16: The G110 command is set when the local system/remote system is in the modal environment that does not allow crossing control. 32: The crossing control command is set under the prohibited status of recalculation. Error type: Registered Data — program or tool data error.

What it means

During the tool path check, the system in which the crossing command was set and/or the remote system for which the crossing command was to be executed has been set to the following status: 1: The specified axis does not exist in the remote system. 2: The local system is specified as the system for which the crossing command was to be executed. 4: A crossing control command is set for the axis currently undergoing the crossing command. 16: The G110 command is set when the local system/remote system is in the modal environment that does not allow crossing control. 32: The crossing control command is set under the prohibited status of recalculation.

What to do

1Review and correct the program.

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 →