The functions given in this chapter need not be used normally. Use them if you
are not satisfied with the machine status after making adjustment in the methods
in chapter 6.
The machine resonance suppression filter is a delay factor for the servo system.
Therefore, vibration may increase if you set an incorrect resonance frequency or
set notch characteristics too deep or too wide.
If the frequency of machine resonance is unknown, decrease the notch
frequency from higher to lower ones in order. The optimum notch frequency is
set at the point where vibration is minimal.
A deeper notch has a higher effect on machine resonance suppression but
increases a phase delay and may increase vibration.
A deeper notch has a higher effect on machine resonance suppression but
increases a phase delay and may increase vibration.
The machine characteristic can be grasped beforehand by the machine analyzer
on setup software (MR Configurator2
TM
). This allows the required notch
frequency and notch characteristics to be determined.
If a mechanical system has a natural resonance point, increasing the servo system response level may
cause the mechanical system to produce resonance (vibration or unusual noise) at that resonance
frequency. Using the machine resonance suppression filter and adaptive tuning can suppress the
resonance of the mechanical system. The setting range is 10 Hz to 4500 Hz.
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