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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-120 minutes
Siemens 300741 - Axis drive asynchronous mode: feedforward control gain out of
If motor inertia and motor nominal torque have been selected unfavorably, the asynchronous motor feedforward control gain is beyond the range of the internal number format 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.
300741
Siemens 300741 - Axis drive asynchronous mode: feedforward control gain out of
Axis drive asynchronous mode: feedforward control gain out of
If motor inertia and motor nominal torque have been selected unfavorably, the asynchronous motor feedforward control gain is beyond the range of the internal number format 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.
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
- If motor inertia and motor nominal torque have been selected unfavorably, the asynchronous motor feedforward control gain is beyond the range of the internal number format
Troubleshooting Steps
- 1Please inform the authorized personnel/service department.
- 2Operation without encoder: Reduce the number of encoder lines in MD 1005: $MD_ENC_RESOL_MOTOR (encoder resolution for motor measuring system), since this has an impact on the internal number format.
- 3Optional/additional measure: see operation with encoder - Operation with encoder: Reduce speed controller cycle MD 1001: $MD_SPEEDCTRL_CYCLE_TIME (speed controller cycle).
- 4Switch control OFF - ON
Seeing Multiple Alarms?
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