Inovance MD800 Series - Page 227

Parameter Group
-226-
Description
This parameter indicates the speed loop PID control parameter Kp, which affects the response to the
motor speed. A greater the Kp value indicates higher adjustment sensitivity and adjustment intensity.
A smaller the Kp value indicates lower adjustment sensitivity and adjustment intensity. The low-
speed speed loop Kp is used in the case of low speed.
F2-01
Low-speed speed loop Ti
Address:
61953
Min.:
001
Unit:
s
Max.: 10.000 Data type: UInt16
Default:
0.500
Change:
At once
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. Increasing the speed loop integral time constant slows down the response of the speed loop.
In this case, increase the speed loop proportional gain to shorten the response time of the speed
loop. The low-speed speed loop Ti is used in the case of low speed.
F2-02
Switchover frequency 1
Address:
61954
Min.:
0.00
Unit:
Hz
Max.:
655.35
Data type:
UInt16
Default:
5.00
Change:
At once
Value Range:
0.00 Hz to 655.35 Hz
Description
The speed loop PI parameters are divided into two groups: low speed and high speed. When the
running frequency is lower than switchover frequency 1 (F2-02), the speed loop PI is adjusted by F2-00
and F2-01. When the running frequency is higher than switchover frequency 2 (F2-05), the speed loop
PI is adjusted by F2-03 and F3-04. When the running frequency falls between switchover frequency 1
and switchover frequency 2, PI parameters are obtained from linear switchover between the two
groups of PI parameters. The value of this parameter must be smaller than F2-05 (switchover
frequency 2).
F2-03
High-speed speed loop Kp
Address:
61955
Min.:
1
Unit:
-
Max.: 200 Data type: UInt16
Default:
20
Change:
At once
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 greater the Kp value indicates higher adjustment sensitivity and adjustment intensity.
A smaller the Kp value indicates lower adjustment sensitivity and adjustment intensity. The high-
speed speed loop Kp is used in the case of high speed.