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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-120 minutes
Siemens 310750 - Axis drive feedforward gain too high
The feedforward control gain is calculated from the reciprocal of the gain in drive MD 5435: CONTROLLED_SYSTEM_GAIN Control reaction: NC not ready. The NC switches to follow-up mode. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm. Channel not ready.
310750
Siemens 310750 - Axis drive feedforward gain too high
Axis drive feedforward gain too high
The feedforward control gain is calculated from the reciprocal of the gain in drive MD 5435: CONTROLLED_SYSTEM_GAIN Control reaction: NC not ready. The NC switches to follow-up mode. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm. Channel not ready.
Safety
- Drive/power/encoder circuit: hazardous voltages may remain in the DC link after power-off. Lock out / tag out, wait for discharge per the drive documentation, and use qualified personnel only.
Common Causes
- The feedforward control gain is calculated from the reciprocal of the gain in drive MD 5435: CONTROLLED_SYSTEM_GAIN
Troubleshooting Steps
- 1Increase the speed controller cycle time in MD 5001: SPEEDCTRL_CYCLE_TIME.
- 2Reduce the force controller feedforward factor in MD 5247: FORCE_FFW_WEIGHT.
- 3Increase the gain in MD 5435: CONTROLED_SYSTEM_GAIN.
- 4Clear alarm with the RESET key in all channels. Restart part program. 2-787
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