Kinco FD5P AC series servo driver
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Chapter7:Tuning of the servo system control
Chapter7:Tuning of the servo system control
Figure 7-1 Servo system control block diagram
Figure 7-1 shows the servo system control block diagram. It can be seen from the figure that the
servo system generally includes three control loops: current loop, velocity loop and position loop.
The adjustment process of a servo system is used to set loop gain and filters to match the
mechanical characteristics, and finally to prevent the entire system from oscillating, to permit it to
follow commands quickly and to eliminate abnormal noise.
。
kaff:Position loop acceleration feedforward
kvff:
Position loop speed feedforward
kvp:
Velocity loop proportional gain
kvi:
Velocity loop integral gain
kpp:Position loop proportional gain
7.1 Auto-tuning
The auto-tuning function will try to stimulate the motor and load system by some motions and get
the inertia of the load. If auto-tuning is successful, stiffness will be auto-set according to the inertia
ratio
.
Figure 7-2 Auto-tuning