Mitsubishi Electric MELSERVO-J4 series, Instruction Manual

Page: 197 / 646

5 PARAMETERS
5.2 Detailed list of parameters
195
5
PB17
NHF
Shaft resonance
suppression filter Set the shaft resonance suppression filter.
Use this to suppress a high-frequency machine vibration.
When you select "Automatic setting (_ _ _ 0)" of "Shaft resonance suppression filter selection" in [Pr. PB23], the value will be calculated
automatically from the servo motor you use and load to motor inertia ratio. It will not be automatically calculated for the linear servo
motor. When "Manual setting (_ _ _ 1)" is selected, the setting written to the parameter is used.
When "Shaft resonance suppression filter selection" is set to "Disabled (_ _ _ 2)" in [Pr. PB23], the setting value of this parameter will be
disabled.
When "Machine resonance suppression filter 4 selection" is set to "Enabled (_ _ _ 1)" in [Pr. PB49], the shaft resonance suppression
filter is not available.
When "Shaft resonance suppression filter selection" is set to "Disabled (_ _ _ 2)" in [Pr. PB23], the performance may be reduced.
_ _ x x Shaft resonance suppression filter setting frequency selection
Refer to the following table for settings.
Set the value closest to the frequency you need. 00h
_ x _ _ Notch depth selection
0: -40 dB
1: -14 dB
2: -8 dB
3: -4 dB 0h
x _ _ _ For manufacturer setting 0h
PB18
LPF
Low-pass filter
setting  Set the low-pass filter.
Refer to the following table for the relation of setting values for the related parameter to the status of this
parameter.
Setting range: 100 to 18000 3141
[rad/s]
PB19
VRF11
Vibration
suppression control
1 - Vibration
frequency

Set the vibration frequency for vibration suppression control 1 to suppress low-frequency machine vibration.
When "Vibration suppression control 1 tuning mode selection" is set to "Automatic setting (_ _ _ 1)" in [Pr.
PB02], this parameter will be set automatically. When "Manual setting (_ _ _ 2)" is selected, the setting written
to the parameter is used. The setting range of this parameter varies, depending on the value in [Pr. PB07]. If
a value out of the range is set, the vibration suppression control is disabled.

Page 254 Advanced vibration suppression control II
Setting range: 0.1 to 300.0
100.0 [Hz]
No./symbol/
name Setting
digit Function Initial
value
[unit]
Setting value Frequency [Hz]
Disabled _ _ 0 0
Disabled _ _ 0 1
4500 _ _ 0 2
3000 _ _ 0 3
2250 _ _ 0 4
1800 _ _ 0 5
1500 _ _ 0 6
1285 _ _ 0 7
1125 _ _ 0 8
1000 _ _ 0 9
900 _ _ 0 A
818 _ _ 0 B
750 _ _ 0 C
692 _ _ 0 D
642 _ _ 0 E
600 _ _ 0 F
Setting value Frequency [Hz]
562 _ _ 1 0
529 _ _ 1 1
500 _ _ 1 2
473 _ _ 1 3
450 _ _ 1 4
428 _ _ 1 5
409 _ _ 1 6
391 _ _ 1 7
375 _ _ 1 8
360 _ _ 1 9
346 _ _ 1 A
333 _ _ 1 B
321 _ _ 1 C
310 _ _ 1 D
300 _ _ 1 E
290 _ _ 1 F
[Pr. PB23] [Pr. PB18]
Automatic setting _ _ 0 _ (Initial value)
_ _ 1 _
_ _ 2 _
Setting value enabled
Setting value disabled