Mitsubishi Electric MELSERVO J5 Series User Manual page 66

The servo parameters are set using the following procedure.
1.
Select "2" (manual setting) in [Pr. PB02.0 Vibration suppression control 1 - Tuning mode selection] or "2" (manual
setting) in [Pr. PB02.1 Vibration suppression control 2 - Tuning mode selection].
2.
Set "Vibration suppression control for vibration suppression control" and "Resonance frequency for vibration suppression
control" as follows.
• When a vibration peak can be checked with machine analyzer, using MR Configurator2 or external measuring equipment
If the frequency characteristic of the machine can be measured using MR Configurator2 or external equipment, set the
frequency trough of the gain characteristic to the vibration frequency setting, and the frequency crest as the resonance
frequency setting.
Gain
characteristics
Vibration suppression control 1 -
Vibration frequency
(anti-resonance frequency)
Phase
-90 degrees
• When vibration can be confirmed using a monitor signal or an external sensor
If the time waveform of a monitor and an external sensor can be measured, measure the droop pulses, and set the droop
pulse vibration cycle of the settling time as the vibration and resonance frequency.
Servo motor-side vibration (droop pulses)
Position command frequency
Vibration cycle [Hz]
4 VIBRATION SUPPRESSION FUNCTION
64
4.7 Advanced vibration suppression control II
Vibration suppression control 2 -
Vibration frequency
(anti-resonance frequency)
[Pr. PB52]
1 Hz
Vibration suppression control 1 -
Resonance frequency
[Pr. PB19]
t
Vibration suppression control -
Vibration frequency
Vibration suppression control -
Resonance frequency
Set the same value.
Vibration suppression control 2 -
Resonance frequency
[Pr. PB53]
300 Hz
Resonance of 300 Hz or more
is not the target of control.
[Pr. PB20]
External acceleration pickup signal or others
t
Vibration cycle [Hz]