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SJ100/L100 / PID / 14
4. EXAMPLE OF ACTUAL APPLICATION
You can find in this chapter some typical setting examples for actual applications.
4-1 Constant Flow Control
In this case (targets are 150m
3
/min &
300m
3
/min), the settings would be as follows:
Function Number
Function Name
Input
Remarks
Integrated Operator
DOP, DRW Under PID Control Mode
Data
F01
Monitor
mode
Target 0
150
Directly input “150 [m
3
/min]”
because scale conversion ratio is
given
A01
Target input origin setting
02
Operator
A11 F31
Feedback value input corresponding %
for lower acceptable level
0
0%
A12
Feedback value input corresponding %
for upper acceptable level
100
100%
A13
Feedback value input
for lower acceptable level setting
20
20%
A14
Feedback value input
for upper acceptable level setting
100
100%
A21 F11
Target 1
300
300 [m
3
/min]
A71 F39
PID mode selection
01
PID mode ON
A72
P-gain adjustment
-
Depends on each application
A73
I -gain adjustment
-
A74
D-gain adjustment
-
A75
PID scale conversion factor setting
5.0
100% when 500 [m
3
/min]
A76
Source of feedback signal selection
00
Feedback from OI-L terminal
L100/
SJ100
Target
Feedback
Transducer
4 - 20mA
(500m
3
/min when 20mA)
Flow sensor
Flow : 150m
3
/min or 300m
3
/min constant
Pump
Motor
Fig. 4-1 Example of Constant Flow Control
4 bit digital signal
300m
3
/min
500m
3
/min 100
150m
3
/min
Feedback value range setting
%
0
20mA
4mA0
100%
20%0
10.6mA
53%
60
30
5.8mA
29%