Inovance MD500-PLUS Series - Page 579

Function Application
‑578‑
Para.
Function
Default Value Range
Description
F2‑03
High‑
speed
speed
loop Kp
20 1 to 200
This is the PID control parameter Kp for
the speed loop, which affects the
response speed of 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
1.00s 0.01s to 10.00s
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. For quicker response, a larger
speed loop proportional gain is required.
The high‑speed speed loop Ti is effective
at high speed.
F2‑05
Switch
over
frequency
2
10.00
Hz
F2‑02 to F0‑10
Speed loop PI parameters are divided into
low‑speed and high‑speed groups. 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. This parameter must be set
to a value lower than switchover
frequency 2 (F2‑05).
F2‑07
Speed
feedback
filter time
0.004s 0.000s to
0.100s
In FVC mode (F0‑01 set to 1), the speed
loop feedback filter time is effective.
Adjusting the parameter can improve the
motor stability. A larger value indicates
better motor stability but slower dynamic
response, and a smaller value indicates
faster dynamic response. An excessively
small parameter value may lead to motor
oscillation. Generally, the motor stability
can meet requirements, and you do not
need to modify this parameter.