How do I fix and clear Mazak alarm 1820?

1. Divide the move command so that the angular motion, whether it be before or after being corrected, will be up to 180° in terms of the travel per block. 2. Modify the settings of angular errors (Δa, Δb, Δc) in order that the distance of correcting motion on the primary or secondary rotational axis may not exceed the limit concerned.

ALARMSMazatrol Assistant

CRITICALAlarm code

1820

ILLEGAL COMMD IN G54.4 (WNo., NNo., BNo.)

Q: What does Mazak alarm 1820 mean?

Mazak alarm 1820 is "ILLEGAL COMMD IN G54.4 (WNo., NNo., BNo.)". 1. Such a command has been assigned that the travel on a rotational axis exceeds an angle of 180° before or after the correction of the tool direction. 2. The distance of correcting motion on the primary or secondary rotational axis for workpiece placement error correction is beyond the limit particularly set for MAZATROL programs. Error type: Registered Data — program or tool data error.

What it means

1. Such a command has been assigned that the travel on a rotational axis exceeds an angle of 180° before or after the correction of the tool direction. 2. The distance of correcting motion on the primary or secondary rotational axis for workpiece placement error correction is beyond the limit particularly set for MAZATROL programs.

What to do

11.
2Divide the move command so that the angular motion, whether it be before or after being corrected, will be up to 180° in terms of the travel per block.
32.
4Modify the settings of angular errors (Δa, Δb, Δc) in order that the distance of correcting motion on the primary or secondary rotational axis may not exceed the limit concerned.

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.

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