136 
8. The upper device starts to send pulses, wait the completion of auto-tuning. 
9. Auto-tuning is finished, click ok. 
 
 
 
 
6.4.6 Related parameters 
The following parameters may be modified during auto-tuning. Do not change them manually during 
auto-tuning. 
The influence of numerical 
value on gain after auto-tuning 
Gain 
performance 
parameters 
Integral time constant of the first speed 
loop 
Disturbance observer switch 
Torque command filter time constant 1 
Disturbance observer gain 
model speed feedforward gain 
Active vibration suppression switch 
Active vibration suppression frequency 
Active vibration suppression gain 
Active vibration suppression damping