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4.7
Advanced vibration suppression control II
Use the vibration suppression control to further suppress the load-side vibration of relatively low frequency of around 100 Hz
or less, such as work-side vibration and shaking base. Settling time can be shortened by suppressing the residual vibration.
The residual vibration is suppressed by adjusting the movement of the servo motor side inside the servo amplifier and
performing positioning.
Vibration suppression control OFF (normal control)
Executing advanced vibration suppression control II estimates the load side vibration frequency automatically, and suppress
load side vibration up to a maximum of two different frequencies. When the vibration suppression control tuning mode is set
as "Automatic setting", the mode shifts to the "Manual setting" after the positioning operation is performed the predetermined
number of times. When the mode is set to the "Manual setting", vibration suppression control 1 can be adjusted with [Pr.
PB19] to [Pr. PB22], and vibration suppression control 2 can be adjusted with [Pr. PB52] to [Pr. PB55].
Precautions
• The machine resonance frequency supported in the vibration suppression control tuning mode is 1.0 Hz to 100.0 Hz. As for
the vibration out of the range, set advanced vibration suppression control II manually.
• Vibration suppression control tuning sets the optimum servo parameter with the currently set control gain. When the
response setting is increased, set vibration suppression control tuning again.
4 VIBRATION SUPPRESSION FUNCTION
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4.7 Advanced vibration suppression control II
Servo motor side
Load side
t
Servo motor side
Load side
Vibration suppression control ON
t
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