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7. SPECIAL ADJUSTMENT FUNCTIONS
7 - 11
(a) When a vibration peak can be confirmed with the machine analyzer using MR Configurator2, or
external measuring instrument.
1 Hz
Gain characteristics
Phase
-90 degrees
300 Hz
Vibration suppression control 1 -
Vibration frequency
(anti-resonance frequency)
[Pr. PB19]
Vibration suppression control 1 -
Resonance frequency
[Pr. PB20]
Vibration suppression control 2 -
Vibration frequency
(anti-resonance frequency)
[Pr. PB52]
Vibration suppression control 2 -
Resonance frequency
[Pr. PB53]
Resonance of more than
300 Hz is not the target of control.
(b) When vibration can be confirmed using monitor signal or external sensor
t
Motor-side vibration
(droop pulses)
Position command frequency
t
External acceleration pickup signal, etc.
Vibration suppression control -
Vibration frequency
Vibration suppression control -
Resonance frequency
Set the same value.
Vibration cycle [Hz] Vibration cycle [Hz]
Step 3. Fine-adjust "Vibration suppression control - Vibration frequency damping" and "Vibration
suppression control - Resonance frequency damping".
7.1.6 Command notch filter
POINT
By using the advanced vibration suppression control II and the command notch
filter, the load-side vibration of three frequencies can be suppressed.
The frequency range of machine vibration, which can be supported by the
command notch filter, is between 4.5 Hz and 2250 Hz. Set a frequency close to
the machine vibration frequency and within the range.
When [Pr. PB45 Command notch filter] is changed during the positioning
operation, the changed setting is not reflected. The setting is reflected
approximately 150 ms after the servo motor stops (after servo-lock).