NSK M-EGA-15A2301, Руководство пользователя, Страница: 168 / 237

6.Adjustments FF vibration suppression control/model following vibration suppression control
6-18
6.7 Tuning to suppress vibration
1) FF vibration suppression control
FF vibration suppression control can be used as a method of suppressing the vibration of the
mechanical tip.
■
Adjust this gain by using the same basic tuning procedures from Position control.
■
When vibration rises on the machine tip during operation, use [Auto-FF vibration suppression
frequency
tuning] or calculate the vibration frequency from the vibration period and set the vibration
frequency to
[FF vibration suppression frequency (SUPFRQ1)].
◆
General parameters Group2 [FF vibration suppression control/Notch filter/
Disturbance observer settings]
ID Symbol Name Unit Setting range
00 SUPFRQ1 FF Vibration Suppression Frequency 1 Hz 5 to 500
✔
If the machine tip vibration does not stop after taking the above steps, there is a possibility the gain for the
control system could be too high. In this case, lower the Control system gain.
✔
Do not change the Setting value when the motor is running.
2) Model following vibration suppression control
When you use the motor to drive tables on a machine stand, the stand itself may vibrate as a
reciprocal reactor of the motor.
When the machine stand vibrates, the vibration may cause a reaction with the Positioning stabilizing
time of the table working on the stand.
Model following vibration suppression control suppresses this type of machine stand vibration and
improves Position stabilization time and response.
■
When you use Model following vibration suppression control, select Position control at Control
Mode Selection and Model following vibration suppression control at Position Control Selection
at System parameters.
You can run the motor under the condition that the machine stand vibration is suppressed
using Model control system.
ID Contents
09
Control Mode Selection
Select value Contents
02
Position Position Control
0A
Position Control Selection
Select value Contents
02 Model2 Model Following Vibration Suppress Control
✔
Do not use Auto-tuning with Model following vibration suppression control.