Shaft Resonance Suppression Filter - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

Shaft resonance suppression filter

This filter is set properly by default according to servo motor you use and load moment of inertia. It is
recommended that [Pr. PB23] be set to "_ _ _ 0" (automatic setting) because changing "Shaft resonance
suppression filter selection" in [Pr. PB23] or [Pr. PB17 Shaft resonance suppression filter] may lower the
performance.
Function
When a load is mounted to the servo motor shaft, resonance by shaft torsion during driving may generate a mechanical
vibration at high frequency. The shaft resonance suppression filter suppresses the vibration.
When you select "Automatic setting", the filter will be set automatically on the basis of the motor you use and the load to servo
motor inertia ratio. The disabled setting increases the response of the servo amplifier for high resonance frequency.
Parameter
Set "Shaft resonance suppression filter selection" in [Pr. PB23].
[Pr. PB23]
0 0 0
Shaft resonance suppression filter selection
0: Automatic setting
1: Manual setting
2: Disabled
To set [Pr. PB17 Shaft resonance suppression filter] automatically, select "Automatic setting".
To set [Pr. PB17 Shaft resonance suppression filter] manually, select "Manual setting". The setting values are as follows.
Setting value
_ _ 0 0
_ _ 0 1
_ _ 0 2
_ _ 0 3
_ _ 0 4
_ _ 0 5
_ _ 0 6
_ _ 0 7
_ _ 0 8
_ _ 0 9
_ _ 0 A
_ _ 0 B
_ _ 0 C
_ _ 0 D
_ _ 0 E
_ _ 0 F
7 SPECIAL ADJUSTMENT FUNCTIONS
252
7.1 Filter setting
Frequency [Hz]
Disabled
Disabled
4500
3000
2250
1800
1500
1285
1125
1000
900
818
750
692
642
600
Setting value
_ _ 1 0
_ _ 1 1
_ _ 1 2
_ _ 1 3
_ _ 1 4
_ _ 1 5
_ _ 1 6
_ _ 1 7
_ _ 1 8
_ _ 1 9
_ _ 1 A
_ _ 1 B
_ _ 1 C
_ _ 1 D
_ _ 1 E
_ _ 1 F
Frequency [Hz]
562
529
500
473
450
428
409
391
375
360
346
333
321
310
300
290