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9. SPECIAL ADJUSTMENT FUNCTIONS
(4) Vibration suppression control manual mode
Measure work end vibration and device shake with the machine analyzer or external measuring instrument,
and set the vibration suppression control vibration frequency (parameter No. PB19) and vibration
suppression control resonance frequency (parameter No. PB20) to set vibration suppression control
manually.
(a) When a vibration peak can be confirmed using MR Configurator, machine analyzer or external FFT
equipment
1Hz
-90deg.
100Hz
Gain characteristic
Phase
Vibration suppression control
vibration frequency
(Anti-resonance frequency)
Parameter No. PB19
Vibration suppression
control resonance
frequency
Parameter No. PB20
Resonance of more
than 100Hz is not the
target of control.
(b) When vibration can be confirmed using monitor signal or external sensor
t t
Motor end vibration
(Droop pulses)
Position command frequency
Vibration cycle [Hz]
Vibration suppression control
vibration frequency
Vibration suppression control
resonance frequency
Set the same value.
External acceleration pick signal, etc.
Vibration cycle [Hz]