INVT Goodrive300 Series - Page 65

Goodrive300 Series VFD Function parameters
60
Function
code
Name
Detailed instruction of parameters
Default
value
Modify
P03.02
Low switching
frequency
parameters are: P03.03 and P03.04. PI
parameters are gained according to the linear
change of two groups of parameters. It is shown
as below:
Output frequency
PI parameters
P03.00, P03.01
P03.03, P03.04
P03.02 P03.05
Setting the proportional coefficient and integral
time of the adjustor can change the dynamic
response performance of vector control speed
loop. Increasing the proportional gain and
decreasing the integral time can speed up the
dynamic response of the speed loop. But too high
proportional gain and too low integral time may
cause system vibration and overshoot. Too low
proportional gain may cause system vibration and
speed static deviation.
PI has a close relationship with the inertia of the
system. Adjust on the base of PI according to
different loads to meet various demands.
Setting range of P03.00: 0–200.0
Setting range of P03.01: 0.000–10.000s
Setting range of P03.02: 0.00Hz–P03.05
Setting range of P03.03: 0–200.0
Setting range of P03.04: 0.000–10.000s
Setting range of P03.05: P03.02–P00.03 (Max.
output frequency)
5.00Hz
○
P03.03
Speed loop
proportional
gain 2
20.0
○
P03.04
Speed loop
integral time 2
0.200s
○
P03.05
High switching
frequency
10.00
Hz
○
P03.06
Speed loop
output filter
0–8 (corresponds to 0–2
8
/10ms)
0
○
P03.07
Compensation
coefficient of
electromotion
slip
Slip compensation coefficient is used to adjust
the slip frequency of the vector control and
improve the speed control accuracy of the
system. Adjusting the parameter properly can
control the speed steady-state error.
Setting range: 50%–200%
100%
○
P03.08
Compensation
100%
○