Yaskawa SGDH Linear Sigma Series - Manual (Page 350)

10 Adjustments
10.4.10 Force Reference Filter
10-28
When the vibration is suppressed but overshooting occurs, increase the Q value and check whether the
overshooting is corrected.
* Used for software version 32 or later.
1. Sufficient precautions must be taken when setting the notch frequencies. Do not set the notch frequen-
cies (Pn409 or Pn40B) that is close to the speed loop’s response frequency. Set the frequencies at least
four times higher than the speed loop’s response frequency. Setting the notch frequency too close to the
response frequency may cause vibration and damage the machine. The speed loop response frequency is
the value of the Speed Loop Gain (Pn100) when the Mass Ratio (Pn103) is set to the correct value.
2. Change the Notch Filter Frequency (Pn409 or Pn40B) only when the linear servomotor is stopped.
Vibration may occur if the notch filter frequency is changed when the linear servomotor is moving.
Pn40A First Stage Notch Filter Q Value *
Setting Range Setting Unit Factory Setting Setting Validation
50 to 400
(0.50 to 4.00)
0.01 70
(0.70)
Immediately
Pn40C Second Stage Notch Filter Q Value *
Setting Range Setting Unit Factory Setting Setting Validation
50 to 400
(0.50 to 4.00)
0.01 70
(0.70)
Immediately
Speed Position
Speed Position
IMPORTANT