Compatible Adjustment Function; Feedforward Reference - YASKAWA E-V-MD Series User Manual

8 Adjustments

8.9.1 Feedforward Reference

8.9

Compatible Adjustment Function

The SERVOPACKs have adjustment functions as explained in sections 8.1 Type of Adjustments and Basic
Adjustment Procedure to 8.8 Additional Adjustment Function to make machine adjustments.
This section explains compatible functions provided by earlier models, such as the S-III Series SERVOPACK.
8.9.1

Feedforward Reference

This function applies feedforward compensation to position control and shortens positioning time.
Position
reference
PnAC8
Pn10A
Note: Too high value may cause the machine to vibrate. For ordinary machines, set 80% or less in this parameter.
8-84
PnAC8
Differential
Feedforward Gain
+
Position loop gain (Kp)
-
Feedback pulse
Feedforward Gain
Setting Unit Setting Unit
0 to 100
Feedforward Filter Time Constant
Setting Unit Setting Unit
0 to 6400
Pn10A
Feedforward Filter
Time Constant
+ +
Factory Setting
1% 0
Factory Setting
0.01 ms 0
Position
When Enabled
Immediately
Position
When Enabled
Immediately
Classification
Tuning
Classification
Tuning