IACDRIVE I5000 Series Operation Manual page 69

Function
Code
Coefficient of rotation
P8.17
This parameter is used to calibrate the bias between actual mechanical speed and rotation
speed. The formula is as below:
Actual mechanical speed = 120 * output frequency *P8.17 / Number of poles of motor
6.10 P9 Group--PID Control
PID control is a common used method in process control, such as flow, pressure and temperature
control. The principle is firstly detect the bias between preset value and feedback value, then
calculate output frequency of inverter according to proportional gain, integral and differential time.
Please refer to following figure.
Function
Name
Code
PID preset
P9.00 source
selection
Keypad
P9.01
PID preset
feedback
P9.02 source
Name
speed
Figure 6.20 PID control diagram.
0: Keypad
1: FV
2: FI
3: Communication
4: Multi-step
PID 0: FV
1: FI
2: FV+FI
Description
0.1~999.9%
Description
0.0%~100.0%
67
Setting Default
Range
0.1~999.9% 100.0%
Setting Factory
Range Setting
0~4
0.0~100.0 0.0%
0~3
Value
0
0