Compatible Adjustment Function; Feedforward Reference - YASKAWA SGDV series User Manual

5 Adjustments

5.9.1 Feedforward Reference

5.9

Compatible Adjustment Function

The Σ-V large-capacity SERVOPACKs have adjustment functions as explained in sections 5.1 to 5.8 to make
machine adjustments.
This section explains compatible functions provided by earlier models, such as the Σ-II large-capacity SER-
VOPACK.

5.9.1 Feedforward Reference

This function applies feedforward compensation to position control and shortens positioning time.
Position
reference
Pn109
Pn10A
Note: Too high value may cause the machine to vibrate. For ordinary machines, set 80% or less in this parameter.
5-62
Pn109
Differential Feedforward Gain
+
Position loop gain (Kp)
-
Feedback pulse
Feedforward Gain
Setting Range
0 to 100
Feedforward Filter Time Constant
Setting Range
0 to 6400
Pn10A
Feedforward Filter
Time Constant
+ +
Setting Unit Factory Setting
1%
Setting Unit Factory Setting
0.01 ms
MECHA
Position
When Enabled
0 Immediately
Position
When Enabled
0 Immediately
Classification
Tuning
Classification
Tuning