5-4.Vibration suppression
When the excitation frequency of the mechanical system is close to the natural frequency of a
certain order of the system, the system amplitude increases significantly, which will cause
vibration and noise.
Generally, the screw equipment with small load inertia can achieve better results by
auto-tuning directly with the upper computer. When the inertia identified by other equipment
in the process of inertia identification is small, it can also use the upper computer to auto-tune
directly without manual adjustment. The current version needs to be re-energized after
modifying the P2 parameters in the process of manual adjustment. In addition, after each
parameter re-adjustment, it should first run at low speed to observe whether there is vibration.
However, vibration or overshoot may occur during the adjustment process. Please perform
manual adjustment when the enablement can be stopped or servo can be turned off at any
time.
Band trap:
Notch filter can suppress mechanical resonance by reducing the gain at a specific
frequency. After the notch filter is set correctly, the vibration can be effectively suppressed
and the servo gain can be continuously increased. The principle of notch filter is as follows:
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