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8. SPECIAL ADJUSTMENT FUNCTIONS
(2) Parameters
(a) Machine resonance suppression filter 1 (parameter No.PB13, PB14)
Set the notch frequency, notch depth and notch width of the machine resonance suppression filter 1
(parameter No.PB13, PB14)
When the "manual mode" is selected in the adaptive tuning mode (parameter No.PB01), the settings of
the machine resonance suppression filter 1 are valid.
(b) Machine resonance suppression filter 2 (parameter No.PB15, PB16)
Setting method for the machine resonance suppression filter 2 (parameter No.PB15, PB16) is same as
for the machine resonance suppression filter 1 (parameter No.PB13, PB14). However, the machine
resonance suppression filter 2 can be set whether the filter tuning mode is valid or not.
POINT
The machine resonance suppression filter is a delay factor for the servo system.
Hence, vibration may increase if you set a wrong resonance frequency or a too
deep notch.
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 wider 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 the MR Configurator. This allows the required notch frequency and depth to
be determined.