Pid Control (Pr. 128 To Pr. 134) - Mitsubishi Electric FR-E540 K-EC Series Instruction Manual

PID control (Pr. 128 to Pr. 134)

4.2.37 PID control (Pr. 128 to Pr. 134)
Pr. 128 "PID action selection"
Pr. 129 "PID proportional band"
Pr. 130 "PID integral time"
Pr. 131 "upper limit"
Pr. 132 "lower limit"
Pr. 133 "PID action set point for PU operation"
Pr. 134 "PID differential time"
The inverter can be used to exercise process control, e.g. flow rate, air volume or
pressure.
The voltage input signal (0 to 5V or 0 to 10V) or Pr. 133 setting is used as a set
point and the 4 to 20mA DC current input signal used as a feedback value to
constitute a feedback system for PID control.
Parameter Factory
Number Setting
128 0
129 100%
130 1s
131 9999
132 9999
133 0%
134 9999
<Setting>
(1) Basic PID control configuration
Deviation
(x)
Set point
+
(U)
(y)
Process value
Kp : Proportional constant
Ti : Integral time
S : Operator
Td : Differential time
Setting Range
0, 20, 21
0.1 to 1000%, 9999
0.1 to 3600s, 9999
0 to 100%, 9999
0 to 100%, 9999
0 to 100%
0.01 to 10.00s, 9999
Manipulated variable
1
PID operation
Kp + 1 + Td S
Ti S
127
PARAMETERS
Related parameters
Pr. 73 "0-5V/0-10V selection"
Pr. 79 "operation mode selection"
Pr. 180 to Pr. 183 (input
terminal function selection)
Pr. 191 to Pr. 192 (output
terminal function selection)
Pr. 902 to Pr. 905 (frequency
setting voltage (current)
biases and
gains)
Remarks
9999: No proportional control
9999: No integral control
9999: Function invalid
9999: Function invalid
9999: No differential control
Motor
(fi)
Inverter
y
drive
IM
circuit
4