Kinco JD Series - 9.2 Driver Performance Tuning

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Kinco JD Series Servo User Manual
9.2 Driver Performance Tuning
Fig. 9-1 Schematic diagram for control loop adjustment
As shown in Fig. 9-1, a typical servo system contains three control loops, namely, position loop, velocity loop,
and current loop.
Current loop are related to motor parameters (optimal parameters of the selected motor are default for the
driver and no adjusting is required).
Parameters for velocity loop and position loop should be adjusted properly according to load conditions.
During adjustment of the control loop, ensure that the bandwidth of the velocity loop is at least twice of that of
the position loop; otherwise oscillation may occur.
9.2.1 Manual Adjustment
1. Parameters for velocity loop
Table 9-1 Parameters for velocity loop
Numeric
Display
Variable Name
Meaning
Default
Value
Range
d2.01
Kvp
Sets the response speed of a velocity loop
100
0~32767
d2.02
Kvi
Adjusts speed control so that the time of minor
errors is compensated
2
0~16384
d2.05
Speed_Fb_N
Reduces the noise during motor operation by
reducing the feedback bandwidth of velocity
loops (smoothing feedback signals of
encoders). When the set bandwidth becomes
smaller, the motor responds slower.
The formula is F=Speed_Fb_N*20+100.
45
0~45