19: PID C
ONTROL
I
NSTRUCTION
19-12
FC6A S
ERIES
MICROS
MART
L
ADDER
P
ROGRAMMING
M
ANUAL
FC9Y-B1726
■
Control tab
This tab configures the control parameters for the PIDA instruction.
1. Control Mode (S1+6)
Select
PID (PID Control), P (Proportional Control), PI (PI Control)
or
PD (PD Control)
according to the characteristics
of the target application.
For details about each control, see "PID Control" on page 19-23.
2. Control Action (S3+0)
• Select the control action from
Direct Control Action
or
Reverse Control Action
.
• Direct control action operates to increase the output manipulated variable when the process variable is higher than the set point.
Cooling equipment uses this operation. Reverse control action operates to increase the output manipulated variable when the process
variable is lower than the set point. Heating furnaces uses this operation. (S3+0) is read-only.
3. Set Point (S1+7)
The set point can be set between the minimum value and the maximum value of the process variable. The setting unit for the
set point is as follows.
When
Analog Input
thermocouple input or resistance thermometer input is set for the process variable, it can be set in units of
0.1°C/°F.
When
Data Register
or
Analog Input
voltage input, current input, thermistor, or resistance measurement is set for the
process variable, it can be set in units of 1.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Process variable
Direct control action
Proportional Band
Output manipulated
variable
Output manipulated
variable
0%
100%
Process variable
Reverse control action
Proportional Band
Set Point
Set Point
0%
100%
Summary of Contents for MICROSmart FC6A Series
Page 1: ...B 1726 7 FC6A SERIES Ladder Programming Manual ...
Page 8: ...Preface 7 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 32: ...1 OPERATION BASICS 1 20 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 96: ...3 INSTRUCTIONS REFERENCE 3 18 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 130: ...4 BASIC INSTRUCTIONS 4 34 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 192: ...9 SHIFT ROTATE INSTRUCTIONS 9 12 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 272: ...12 DISPLAY INSTRUCTIONS 12 24 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 284: ...14 REFRESH INSTRUCTIONS 14 6 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 502: ...25 DATA LOG INSTRUCTIONS 25 22 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 546: ...26 SCRIPT 26 44 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 598: ...APPENDIX A 14 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...