Download CSD5 Servo Drive

Tuning by Gain Setting
Tip to get fast response
6-27
Feedforward function
For position feed forward (FF) diagram, refer to the 6-25 page "Position
Control Related Gain". Position FF makes differentiation factor on position
command in position control mode approved in speed command through feed
forward method. Therefore, over response characteristics is improved so that
you can reduce position output time.
The related parameter to set is as follows.
Parameter
100
0
Position FF
Gain
[%]
Parameter Name
Position Feed forward Gain
Description
The higher the value is set, the better position control response
performance.
Applicable Mode
F
Others
Setting > End
Parameter
2500
200
0
Position FF
Filter
[Hz]
Parameter Name
Position Feed forward Filter
Description
It makes position command itself smooth as suppressing high frequency
that is included in position command.
If torque command filter [Ft-1.15] is not ‘0’, it is valid.
If this value is ‘0’, position FF filter is not used.
Applicable Mode
F
Others
Setting > End
If you use position FF function, speed command increases or reduces much as
responding to increase or reduction of position command. Therefore, if
position command is entered as the type to be significantly changed (that is to
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CSD5 Servo Drive