SHENZHEN INVT ELECTRIC CO., LTD. CHV160 Operation Manual
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P9. PID Control Group
PID control is one method normally used to process control, holding the control value to
the target value by the negative feedback system which regulates the inverter output
frequency by means of proportion, integration and differential operations on the difference
between the control value feedback signal and the target value signal. It is applicable to the
process controls such as flow control, pressure control and temperature control and so on. The
control functional block diagram is shown as follows,
Given Value
(Percentage)
F
M
P
(Percentage)
PID Control
Output F
Feedback Value
Filter
Figure 6-20 Process PID Functional Block Diagram
Function
Code
Name
Description
setting
range
Default
Value
P9.00
PID
Assignment
Sources
selection
0: Given by Keyboard (P9.01)
1: Given by Analog Channel AI1
2: Given by Analog Channel AI2
3: Given by Analog Channel AI3
4: Given by Analog Channel AI4
5: Pulse Frequency Assignment 1 (HDI1)
0
8
0
