Sinumerik Alarm 300779 Axis %1 drive %2 motor moment of inertia less than or equal to zero

Sinumerik Alarm 300779 Axis %1 drive %2 motor moment of inertia less than or equal to zero

Parameters:
%1 = NC axis number
%2 = Drive number

Definitions:
The value in MD 1117: $MD_MOTOR_INERTIA (motor moment of inertia) is less than or equal to zero. The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).

Reactions:
– NC not ready.
– Channel not ready.
– Channel not ready.
– NC Stop on alarm.
– NC Start disable in this channel.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.

Remedy:
Please inform the authorized personnel/service department.
• For standard motors: Reset the drive (delete the bootfile) and repeat the startup.
• For MSD, configure “1st motor” first.
• For third-party motors: Enter a valid value in drive MD 1117: $MD_MOTOR_INERTIA (motor moment of inertia).

Program Continuation:
Clear alarm with the RESET key in all channels. Restart part program.