Inovance MD500-PLUS Series - Page 119

Parameter Groups
‑118‑
Min.:
0
Unit:
Hz
Max.: F2‑05 Data type: UInt16
Default:
5
Change: In real time
Value Range:
0.00 Hz to F2‑05
Description
The speed loop PI parameters are divided into two groups: low speed and high
speed. If the running frequency is lower than switchover frequency 1 (F2‑02), the
speed loop PI parameters are adjusted by F2‑00 and F2‑01. If the running
frequency is higher than switchover frequency 2 (F2‑05), the speed loop PI
parameters are adjusted by F2‑03 and F3‑04. If the running frequency is between
switchover frequency 1 and switchover frequency 2, the speed loop PI parameters
switch linearly between the two groups of PI parameters. The parameter value
must be lower than F2‑05 (Switching frequency 2).
F2-03
High-speed speed loop Kp
Address:
0xF203
Min.:
1
Unit:
‑
Max.: 200 Data type: UInt16
Default:
20
Change: In real time
Value Range:
1 to 200
Description
This parameter indicates the speed loop PID control parameter Kp, which affects
the response to the motor speed. A larger Kp value indicates higher sensitivity and
more intensive tuning. A smaller Kp value indicates lower sensitivity and less
intensive tuning. The high‑speed speed loop Kp is effective at high speed.
F2-04
High-speed speed loop Ti
Address:
0xF204
Min.:
0.001
Unit:
s
Max.: 10 Data type: UInt16
Default:
1
Change: In real time
Value Range:
0.001s to 10.000s
Description
The reciprocal of the speed loop integral time constant is the integral gain. The
speed loop integral time constant affects the steady‑state speed error of the
motor and the stability of the speed loop system. If the speed loop integral time
constant increases, the speed loop response slows down. At this time, the
proportional gain of the speed loop needs to be increased to fasten the speed
loop response. The high speed loop Ti is used at high speed.