YASKAWA E-II Series User Manual

9 Adjustments
9.4.10 Torque Reference Filter
9-18
(a) Notch Filter
The notch filter can decrease the set frequency responsiveness. The notch filter puts a notch in the gain curve at
the specific vibration frequency. The frequency components near the notch frequency can be eliminated with this
characteristic. A higher notch filter Q value produces a sharper notch and phase delay.
(b) Related Parameters
Q value = 0.7 Q value = 1.0
Notch filter
Notch filter
Gain
(db)
Frequency (Hz)
-300
-200
-100
0
100
2
10
10
3
10
4
2
10
10
3
10
4
Phase
Frequency (Hz)
-400
-300
-200
-100
0
(deg)
-300
-200
-100
0
100
2
1010
3
10
4
2
1010
3
10
4
-400
-300
-200
-100
0
Notch filter
Gain
(db)
Frequency (Hz)
Notch filter
Phase
(deg)
Frequency (Hz)
Parameter Meaning
Pn408 n.0 First notch filter disabled (Factory setting)
n.1 Use first notch filter.
n.0 Second notch filter disabled (Factory setting)
n.1 Use second notch filter.
Pn409 First Stage Notch Filter Frequency
Setting Range Setting Unit Factory Setting Setting Validation
50 to 2000 1 Hz 2000 Immediately
Pn40A First Stage Notch Filter Q Value
Setting Range Setting Unit Factory Setting Setting Validation
50 to 400
× 0.01
70 Immediately
Pn40B Second Stage Notch Filter Frequency
Setting Range Setting Unit Factory Setting Setting Validation
50 to 2000 1 Hz 2000 Immediately
Pn40C Second Stage Notch Filter Q Value
Setting Range Setting Unit Factory Setting Setting Validation
50 to 400
× 0.01
70 Immediately
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Torque
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

YASKAWA E-II Series Specifications

General

Brand	YASKAWA
Model	E-II Series
Category	Servo Drives
Language	English