Shaft Resonance Suppression Filter; Shaft Resonance Suppression Filter Restrictions; Shaft Resonance Suppression Filter Setting Method - Mitsubishi Electric MELSERVO J5 Series User Manual

4.4

Shaft resonance suppression filter

When a load is mounted to the servo motor shaft, resonance by shaft torsion during servo motor drive generates high
frequency mechanical vibration. The shaft resonance suppression filter suppresses the vibration.
Selecting "Automatic setting" sets the filter automatically based on the servo motor used and the load to motor inertia ratio. If
the resonance frequency is high, disable the setting to increase the responsiveness of the servo amplifier.
Precautions
• It is recommended that [Pr. PB23.0 Shaft resonance suppression filter selection] and [Pr. PB23.3 Shaft resonance
suppression filter selection 2] be set to (automatic setting) "0" and "1" respectively, as deterioration in performance may
occur if there are changes in the setup of [Pr. PB23.0 Shaft resonance suppression filter selection], [Pr. PB23.3 Shaft
resonance suppression filter 2 selection], and [Pr. PB17.0-1 Shaft resonance suppression filter frequency selection].

Shaft resonance suppression filter restrictions

The shaft resonance suppression filter cannot be set when the machine resonance suppression filter 4 is enabled.
The shaft resonance suppression filter 2 cannot be set when the machine resonance suppression filter 3 is enabled.

Shaft resonance suppression filter setting method

Set [Pr. PB23.0 Shaft resonance suppression filter selection].
Servo parameter Description
PB23.0 Shaft resonance suppression filter selection
0: Automatic setting
1: Manual setting
2: Disable
PB23.3 Shaft resonance suppression filter 2 selection
0: Disabled
1: Automatic setting
When [Pr. PB23.0] is set to "0" (automatic setting), [Pr. PB17.0-1] will be set automatically.
When [Pr. PB23.0] is set to "1" (manual setting), [Pr. PB17.0-1] can be set manually. The setting values are as follows.
Setting value
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
Frequency [Hz]
Disabled
Disabled
4500
3000
2250
1800
1500
1285
1125
1000
900
818
750
692
642
600
562
529
500
473
450
428
4 VIBRATION SUPPRESSION FUNCTION
4.4 Shaft resonance suppression filter
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