Mitsubishi Electric FR-D720-0.4K Instruction Manual page 217

(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 signal (X14) 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 inverter terminal 2 or Pr. 133 and enter the measured value to terminal 4.
REMARKS
When Pr. 128 = "0" or X14 signal is OFF, normal inverter 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
Depending
X14
Pr. 178 to Pr. 182
2
PU
4
FUP
FDN
Depending
Pr. 190, Pr. 192,
Pr. 197
RL
PID
SLEEP
SE
∗1
When the X14 signal is not assigned, only the Pr. 128 setting makes PID control valid.
∗2
The shaded area indicates the parameter initial value.
∗3
When 100 or larger value is set in any of Pr.190, Pr.192, and Pr.197 (output terminal function selection), the terminal output has negative logic. (Refer to page 120 for
details)
∗4
When Pr. 561 PTC thermistor protection level
NOTE
Changing the terminal function using any of Pr. 178 to Pr. 182, Pr. 190, Pr. 192, and Pr. 197 may affect the other functions.
Set parameters after confirming the function of each terminal.
When the Pr. 267 setting was changed, check the voltage/current input switch setting. Different setting may cause a
fault, failure or malfunction. (Refer to page 151 for setting)
Function
on PID control
selection
2 Set point input
— Set point input
Measured value
4
input
Upper limit output
Lower limit output
on
Forward (reverse)
rotation direction
output
During PID control
activated
PID output
interruption
Output terminal
SE
common
≠
"9999", terminal 2 is not available for set point input. Use Pr. 133 for set point input.
Special operation and frequency control
Description
Turn ON X14 signal to perform PID
control. ∗1
You can input the set point for PID
control.∗4
0 to 5V ............. 0 to 100%
0 to 10V ........... 0 to 100%
Set the set point (Pr. 133) from the
operation panel.
Input the signal from the detector
(measured value signal).
4 to 20mA ........ 0 to 100%
0 to 5V ............. 0 to 100%
0 to 10V ........... 0 to 100%
Output to indicate that the measured
value signal exceeded the maximum
value (Pr. 131).
Output when the measured value signal
falls below the minimum value (Pr. 132).
"Hi" is output to indicate that the output
indication of the parameter unit is
forward rotation (FWD) or "Low" to
indicate that it is reverse rotation (REV)
or stop (STOP).
Turns ON during PID control.
Turns ON when the PID output
interruption function is performed.
Common terminal for open collector
output terminal.
Parameter Setting
Set 14 in any of Pr. 178 to Pr.
182.
Pr. 128 = 20, 21,
Pr. 133 = 9999
Pr. 73 = 1 ∗2, 11
Pr. 73 = 0, 10
Pr. 128 = 20, 21
Pr. 133 = 0 to 100%
Pr. 128 = 20, 21
Pr. 267 = 0 ∗2
Pr. 267 = 1
Pr. 267 = 2
Pr. 128 = 20, 21
Pr. 131 ≠ 9999
Set 15 or 115 in Pr. 190,
Pr. 192, or Pr. 197. ∗3
Pr. 128 = 20, 21
Pr. 132 ≠ 9999
Set 14 or 114 in Pr. 190,
Pr. 192, or Pr. 197. ∗3
Set 16 or 116 in Pr. 190,
Pr. 192, or Pr. 197. ∗3
Set 47 or 147 in Pr. 190,
Pr. 192, or Pr. 197. ∗3
Pr. 575 ≠ 9999
Set 70 or 170 in Pr. 190,
Pr. 192, or Pr. 197. ∗3
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