How do I fix and clear Mazak alarm 858?

Review the program, and correct it so that the total number of “[” and “]” within one block does not exceed five.

CRITICALAlarm code

858

USER MACRO “[” NESTING EXCEEDED (WNo., NNo., BNo.)

Q: What does Mazak alarm 858 mean?

Mazak alarm 858 is "USER MACRO “[” NESTING EXCEEDED (WNo., NNo., BNo.)". The total number of “[” and “]” within one block has become more than five. Error type: Registered Data — program or tool data error.

What it means

The total number of “[” and “]” within one block has become more than five.

What to do

1Review the program, and correct it so that the total number of “[” and “]” within one block does not exceed five.

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 →