Higen FDA7002EX User Manual

5. Servo operating
4-13
6) Feed forward ratio setting
P05-04
Feedforward
Unit
%
Setting range
0.0 ~ 100.0
Manufactured
default
0.0
Position control
Enter the feedforward ratio for the position command speed in [%] unit. When this value
increases it can reduce the position decision time but if set to high, it can cause an overshoot or
vibration to the machine. If this value is set “0”, the position controller becomes simple position
loop control mode.
Refer to the Max_Value [Feedforward] according to the following R=[Speed loop gain]/[Position
loop gain].
R = [ Speed loop gain ]
/ [ Position loop gain ]
Max_Value [ Feedforward ]
5
70 or below
7
80 or below
10
85 or below
20
90 or below
P05-11
FF TC
Unit
ms
Setting range
0.0 ~ 2000.0
Manufactured
default
0.0
Position control
Enter the 1
st
filter TC in [ms] unit of the feedforward input of the position command speed. The
entered position command is divided and processed through the 1
st
filter before being used as
the feedforward input, the TC of this filter can be adjusted. In the applied field where the position
command changes abruptly, set this value high and in applied field where the position command
changes smoothly, set this value low. If you do not want to use this filter, input “0”.
[ Recommended setting condition ]
Gain]P[PC/100/rd])[Feedforward][Feedforwa(Max_Value1000TC) ward11(FeedforP05 

Higen FDA7002EX Specifications

General

Brand	Higen
Model	FDA7002EX
Category	Servo Drives
Language	English