Mitsubishi Electric FR-D720-0.2K-G Instruction Manual page 223

Special operation and speed control
(4) I/O signals and parameter setting
Set "20, 21" in Pr. 128 to perform PID operation.
Set "14" in any of Pr. 178 to Pr. 182 (input terminal function selection) to assign PID control selection (X14) signal to turn the
X14 signal ON.
When the X14 signal is not assigned, only the Pr. 128 setting makes PID control valid.
Enter the set point using the drive unit terminal 2 or Pr. 133 and enter the measured value to terminal 4.
REMARKS

When Pr. 128 = "0" or X14 signal is OFF, normal drive unit operation is performed without PID action.

Turning ON/OFF of bit of the terminal, to which X14 signal is assigned through network as RS-485 communication, enables
PID control.
Signal Terminal Used
X14
Depending
X64
Pr. 178 to Pr. 182
X72
2 
2
PU —
4 
4
FUP
FDN
Depending
RL
Pr. 190 or Pr. 192
PID
SLEEP
Y48
SE SE

When the X14 signal is not assigned, only the Pr. 128 setting makes PID control valid.

The shaded area indicates the parameter initial value.

When 100 or larger value is set in any of Pr. 190 and Pr. 192 (output terminal function selection), the terminal output has negative logic. (Refer to page 123 for
details.)

When Pr. 561 PTC thermistor protection level

When the voltage/current input specifications were changed using Pr. 73 and Pr. 267, be sure to make calibration. (Refer to page 224 for calibration examples
for PID control.)
220
Function
PID control
Turn ON X14 signal to perform PID control. 
selection
PID forward/ By turning ON X64, forward action can be
on
reverse action selected for PID reverse action (Pr. 128 = 20), and
switchover reverse action for forward action (Pr. 128 = 21).
PID integral value ON: Integral and differential values are reset
reset OFF: Normal processing
You can input the set point for PID control.
Set point input
0 to 5V ..............0 to 100%
0 to 10V ............0 to 100%
Set the set point (Pr. 133) from the operation
Set point input
panel.
Input the signal from the detector (measured
value signal).
Measured value
4 to 20mA .........0 to 100%
input
1 to 5V ..............0 to 100%
2 to 10V ............0 to 100%
Output to indicate that the measured value signal
Upper limit output
exceeded the maximum value (Pr. 131).
Output when the measured value signal falls
Lower limit output
below the minimum value (Pr. 132).
"Hi" is output to indicate that the output indication
Forward (reverse)
on
of the parameter unit is forward rotation (FWD) or
rotation direction
"Low" to indicate that it is reverse rotation (REV)
output
or stop (STOP).
During PID control
Turns ON during PID control.
activated
PID output Turns ON when the PID output
interruption interruption function is performed.
Output when the absolute value of deviation
PID deviation limit
exceeds the limit value.
Output terminal Common terminal for open collector output
common terminal.

"9999", terminal 2 is not available for set point input. Use Pr. 133 for set point input.
Description Parameter Setting
Set 14 in any of Pr. 178 to Pr.
182.
Set 64 in any of Pr. 178 to Pr.
182.
Set 72 in any of Pr. 178 to Pr.
182.
Pr. 128 = 20, 21,
Pr. 133 = 9999
Pr. 73 = 1, 11
Pr. 73 = 0, 10
Pr. 128 = 20, 21
Pr. 133 = 0 to 100%
Pr. 128 = 20, 21
Pr. 267 = 0
Pr. 267 = 1
Pr. 267 = 2
Pr. 128 = 20, 21
Pr. 131  9999
Set 15 or 115 in Pr. 190 or
Pr. 192. 
Pr. 128 = 20, 21
Pr. 132  9999
Set 14 or 114 in Pr. 190 or
Pr. 192.
Set 16 or 116 in Pr. 190 or
Pr. 192.
Set 47 or 147 in Pr. 190 or
Pr. 192.
Pr. 575 9999
Set 70 or 170 in Pr. 190 or
Pr. 192.
Pr. 553 9999
Set 48 or 148 in any of Pr. 190
or Pr. 192. 