Hitachi SJ 300 User Manual
Page 2
SJ100/L100 / PID / 2
CONTENTS
1. OVERVIEW
3
2. PID CONTROL ON SJ100/L100 INVERTERS
3
2-1 PID Control
3
(1) P : Proportional Control
4
(2) I : Integral Control
5
(3) D : Differential Control
5
(4) PID Control
5
2-2 PID Gain Adjustments & Control Characteristics
6
3. HOW TO USE
7
3-1 Structure & Parameters
7
(1) Control Mode
7
(2) Parameters
7
(3) Deviation Calculation
8
(4) Target Input
8
(5) Feedback Input & Setting PID Performance Area
8
(6) Scale Conversion
9
3-2 Summary of Parameters for PID Control
9
3-3 Examples of Set Up
11
(1) Parameter Set Up under Frequency Control Mode
11
(2) PID Set Up (Target & Feedback)
11
(3) Scale Conversion Factor Setting
12
(4) Target Input by Digital Input Signal
12
(5) PID Mode Selection
12
3-4 Example of Each Gain Adjustment (Kp & Ti)
13
(1) Adjustment of Proportional Gain (Kp)
13
(2) Adjustment of Integration time (Ti) & Readjustment of Kp
13
3-5 General Cautions
13
4. EXAMPLES OF ACTUAL APPLICATION
14
4-1 Constant Flow Control
14
4-2 Constant Temperature Control
15
5. INDEX
16