Operation Of Machine Resonance Suppression Filter - Mitsubishi Electric MR-J5 User Manual

Operation of machine resonance suppression filter

The machine resonance suppression filter is a filter function (notch filter) that decreases the gain of the specific frequency to
suppress the mechanical system resonance. The frequency (notch frequency), the depth, and size at which the gain is
decreased can be set.
Machine resonance point
Notch frequency
The characteristics of the machine resonance suppression filter change according to notch depth and width selections as
follows.
5
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
5
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
4 VIBRATION SUPPRESSION FUNCTION
62
4.2 Machine resonance suppression filter
Frequency
Notch width
Notch depth
Frequency
Notch depth: Slightly shallow (-4 [dB])
Notch depth: Shallow (-8 [dB])
Notch depth: Slightly deep (-14 [dB])
Notch depth: Deep (-40 [dB])
Notch frequency
Notch width: Standard (α = 2)
Notch width: Slightly wide (α = 3)
Notch width: Wide (α = 4)
Notch width: Wide (α = 5)
Notch frequency