Mitsubishi Electric MELSEC iQ-F FX5 - Page 638

636
35 CPU MODULE BUILT-IN ANALOG FUNCTION
35.6 Function (PID Control Via Parameter)
Setting example
Setting examples of PID control only (setting examples 1 and 4) are shown in this chapter. For details on other program
examples, refer to the following.
■Setting example 1: Standard PID control
When "Control mode" is set to "Standard PID control mode", without performing auto tuning, PID control is performed by using
the control parameters set by the user.
• Operation example
Setting
example
Control mode Description Reference
Setting
example 1
Standard PID
control
PID control only Page 638 Operating
procedure
Setting
example 2
Auto tuning + PID control Page 660 Setting example 2
Setting
example 3
Analog output using the output value (MV) (Auto tuning + PID control) Page 662 Setting example 3
Setting
example 4
Heating-cooling PID
control
PID control only Page 638 Operating
procedure
Setting
example 5
Auto tuning + PID control Page 665 Setting example 5
Setting
example 6
Analog output using the output value (MV) (Auto tuning + PID control) Page 668 Setting example 6
0V
COM0
Y0
FX5-4AD-TC-ADP
Y1
24V X0 X1
FX5U-32MT/ES
L1+
L1-
X0: PID control execution command
Y0: Error indication
Y1: Control output
Parameter settings
24VDC
Temperature tank
Electric
heater
Temperature sensor
(thermocouple)
Heater
Measured value (PV)
Target value
(SV) = 50.0ºC
Time
ON
OFF
Output value (MV) = 60% Output value (MV) = 30% Output value (MV) = 40%
Control output
(Y1)
Output value (MV) / 100
× Control output cycle = 3.0s
Output value (MV) / 100
× Control output cycle = 1.5s
Output value (MV) / 100
× Control output cycle = 2.0s
Control output cycle
(50 × 100ms = 5s)
Control output cycle
(50 × 100ms = 5s)
Control output cycle
(50 × 100ms = 5s)