Force Reference Filter - YASKAWA SGLFW User Manual

10 Adjustments

10.4.10 Force Reference Filter

10.4.10 Force Reference Filter
As shown in the following diagram, the force reference filter contains one force reference filter and two notch fil-
ters arrayed in series, and each filter operates independently. The notch filters can be enabled and disabled using
the parameters.
Force reference
befor filtering
Software version earlier than 32 does not have the parameters for the First Stage Notch Filter Q Value
IMPORTANT
(Pn40A) and the Second Stage Notch Filter (Pn40B and Pn40C).
(1) Force Reference Filter
If you suspect that machine vibration is being caused by the servodrive, try adjusting the force reference filter
time constant. This may stop the vibration. The lower the value, the better the speed control response, but there is
a lower limit that depends on the machine conditions.
Pn401 Force Reference Filter Time Constant
10-26
Force
reference
filter
Pn401
1st-order delay filter
Setting Range
0 to 65,535
(0.00 to 655.35 ms)
Force related
function switch
Pn408
Second
stage
notch
filter
Pn40B
Pn40C
Notch filter
Notch filter
Setting Unit Factory Setting
0.01 ms
(1.00 ms)
First
Force reference
stage
after filtering
notch
filter
Pn409
Pn40A
Speed Position
Setting Validation
100 Immediately
Force