5 Adjustments
5.9.1 Feedforward Reference
5-84
5.9
Compatible Adjustment Function
The DC Power Input
Σ
-V series 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
-III Series SERVOPACK.
5.9.1
Feedforward Reference
This function applies feedforward compensation to position control and shortens positioning time.
Note: Too high value may cause the machine to vibrate. For ordinary machines, set 80% or less in this parameter.
Pn109
Feedforward Gain
Classification
Setting Range
Setting Unit
Factory Setting
When Enabled
0 to 100
1%
0
Immediately
Tuning
Pn10A
Feedforward Filter Time Constant
Classification
Setting Range
Setting Unit
Factory Setting
When Enabled
0 to 6400
0.01 ms
0
Immediately
Tuning
+
+ +
-
Pn109
Pn10A
Position
reference
Feedback pulse
Position loop gain (Kp)
Feedforward Gain
Differential
Feedforward Filter
Time Constant
MECHA
Position
Position