How do I fix and clear Mazak alarm 1904?

Cancel involute interpolation before specifying a command that cannot be used in the involute interpolation mode.

CRITICALAlarm code

1904

ILLEGAL CMD DURING G2.2/G3.2 (WNo., NNo., BNo.)

Q: What does Mazak alarm 1904 mean?

Mazak alarm 1904 is "ILLEGAL CMD DURING G2.2/G3.2 (WNo., NNo., BNo.)". In the involute interpolation mode, an unusable command was specified. Error type: Registered Data — program or tool data error.

What it means

In the involute interpolation mode, an unusable command was specified.

What to do

1Cancel involute interpolation before specifying a command that cannot be used in the involute interpolation mode.

Codebook — decoded

BError typeRegistered Data — program or tool data error

I (L)Stop statusunspecified

P (S)Clearingunspecified

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

Still stuck? Ask the Mazatrol assistant →