11 Adjustment Functions
11 - 24
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
11-7 Notch Filters
When the machine rigidity is low, machine resonance may produce vibration and noise, thus you may
not be able to set a high gain. The notch filter can restrict the resonance peak, and allows a high gain
setting and vibration reduction.
The G5-series Servo Drives provide four notch filters that can be used for adjusting frequency, width
and depth.
If controlled device causes resonance at a specific location, you can set the resonance frequency using
a notch filter to eliminate resonance.
A notch filter is used to eliminate a specified frequency component.
If machine resonance occurs, use this notch filter to eliminate resonance.
0 db
-3 db
fw
Width fw
=
Fc
fw
Depth
Frequency Hz
Cut-off frequency Fc
Notch filter 1 Notch filter 2
Machine resonance
Notch filter
Characteristics
after filtering
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