Pid Function; Basic Operation Of Pid Control; Components Of Pid - Hyundai hiRUN N300 Series Instruction Manual

N300 INSTRUCTION MANUAL

PID function

This integrated process control function can be used for controls such as constant flow and control for fan and
pump applications. When using this function set A071 to 01. Turn off the terminal in the case that you validate
this function or turn on the terminal in the case that you invalidate this function
after assigned 23 (PID valid/invalid) to intelligent input terminal in the
case of switching valid / invalid of this function with the outside signal
Function code
Set item
PID selection
PID P gain
PID I gain
PID D gain
PID scale
PID feedback
selection
Maximum PID
Deviation level
(1) Feedback selection
Select which analogue input terminals will be the feedback reference (A076).
Set the set frequency command selection with A001. (In should not be the same as the terminals selected
with A076). Or when the control terminal 01 is set with A001, the setting of AT selection A005 is invalid.
The contents changes when 02 is selected with A006.

(2) Basic operation of PID control

Set value +
0 10V
4 20mA

(3) Components of PID

[1] P action This is the action that the manipulated variable is in proportion to the command.
Set value
Manipulate
d variable
[2] I action This the action that the manipulated variable increases with time in a straight lime.
Set value
Manipulate
d variable
[3] D action This is the action that the manipulated variable in proportion to the changing rate of command.
Set value
Manipulate
d variable
PI action combines above [1] and [2], PD action does [1] and [3], PID action does [1], [2] and [3].
Data
00
A071
01
A072 0.2-5.0
A073 0.0-3600.
A074 0.00-100.0
A075 0.01-99.99
00
A076
01
C044 0.00-100.0
Deviation
1
1
K p( + + Tds)
Tis
-
0 10V
Feedback
4 20mA
Kp : proportional gain
Change into step function Change into lamp function
Larger
A074
Smaller
Chapter 4 Explanation of function
Contents
Invalid
Valid
Proportional gain
Integration Gain
Unit : seconds
Derivative gain
Unit : seconds
Unit : Times
O1-L : 4-20mA
O-L : 0-10V
Unit : %
Manipulated
variable
Inverter
Normal control
fs
Ti : Reset time Td : Rate time
Larger
A072
Smaller
Smaller
A073
Larger
Relation code
A001 : Frequency command
selection
A005 : AT selection
A071 : PID selection
A072 : PID P gain
A073 : PID I gain
A074 : PID D gain
A075 : PID scale
A076 : PID feedback selection
d004 : PID feedback monitor
C001-C008 : Intelligent input
terminal
C021-C025 : Intelligent output
terminal
C004 : PID deviation setting level
M
=
Transducer
S:Operator
:Deviation
Larger
A072
Smaller
Smaller
A073
Larger
Larger
A074
Smaller
sensor