User Manual V 1-4.XX User guide

Parameters 11-25
65 Fdbk Filter Sel
Use Fdbk Filter Sel to select the type of feedback filter. You can
choose among the following filters:
Value Description
0 No Filter
Use this option if you do not want to filter the feedback.
1 35/49 rad
Use a “light” 35/49 radian feedback filter.
2 20/40 rad
Use a “heavy” 20/40 radian feedback filter.
3 Lead/Lag
Use a single pole lead lag feedback filter. You need to set
up Fdbk Filter Gain (par. 66) and Fdbk Filter BW
(par. 67).
4 Notch
Use a notch filter. You need to set up Notch Filtr Freq
(par. 185) and Notch Filtr Q (par. 186).
Parameter number 65
File:group Control:Speed Feedback
Parameter type linkable destination
Display x
Factory default 0
Minimum value 0
Maximum value 4
Conversion 1 = 1
Refer to Appendix B, Control Block Diagrams, for information
about Fdbk Filter Sel.
66 Fdbk Filter Gain
Use Fdbk Filter Gain to specify the Kn term of the single pole
lead/lag feedback filter.
You need to set this parameter if Fdbk Filter Sel (parameter 65) is
set to 3.
Parameter number 66
File:group Control:Speed Feedback
Parameter type linkable destination
Display ±x.xx
Factory default +1.00
Minimum value -5.00
Maximum value +5.00
Conversion 256 = 1.00
If KN is: Then:
Greater than 1.0 A lead filter is produced.
Less than 1.0 A lag filter is produced.
Equal to 1.0 The feedback filter is disabled.
Equal to 0.0 A simple, low pass filter is produced.
67 Fdbk Filter BW
Use Fdbk Filter BW to establish the breakpoint frequency (in
radians) for the speed feedback lead/lag filter. You need to set
this parameter if Fdbk Filter Sel (parameter 65) is set to 3.
Parameter number 67
File:group Control:Speed Feedback
Parameter type linkable destination
Display x.x radians/second
Factory default 100.0 radians/second
Minimum value 0.2 radian/second
Maximum value 900.0 radians/second
Conversion 10 = 1.0