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Special operation and frequency 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 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 Function Description Parameter Setting
Input
X14
Depending on
Pr. 178 to Pr. 182
PID control
selection
Turn on X14 signal to perform PID
control. ∗1
Set 14 in any of Pr. 178 to Pr.
182.
2 2 Set point input
You can input the set point for PID
control.∗4
Pr. 128 = 20, 21,
Pr. 133 = 9999
0 to 5V..............0 to 100%
Pr. 73 = 1 ∗2, 11
0 to 10V............0 to 100%
Pr. 73 = 0, 10
PU — Set point input
Set the set point (Pr. 133) from the
operation panel.
Pr. 128 = 20, 21
Pr. 133 = 0 to 100%
44
Measured value
input
Input the signal from the detector
(measured value signal).
Pr. 128 = 20, 21
4 to 20mA.........0 to 100%
Pr. 267 = 0 ∗2
0 to 5V..............0 to 100%
Pr. 267 = 1
0 to 10V............0 to 100%
Pr. 267 = 2
Output
FUP
Depending on
Pr. 190, Pr. 192
Upper limit output
Output to indicate that the process value
signal exceeded the maximum value (Pr.
131).
Pr. 128 = 20, 21
Pr. 131 ≠ 9999
Set 15 or 115 in Pr. 190
or Pr. 192 ∗3
FDN Lower limit output
Output when the process value signal
falls below the minimum value (Pr. 132).
Pr. 128 = 20, 21
Pr. 132 ≠ 9999
Set 14 or 114 in Pr. 190
or Pr. 192. ∗3
RL
Forward (reverse)
rotation direction
output
"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).
Set 16 or 116 in Pr. 190
or Pr. 192. ∗3
PID
During PID control
activated
Turns ON during PID control.
Set 47 or 147 in Pr. 190
or Pr. 192. ∗3
SLEEP
PID output
interruption
Turns ON when the PID output
interruption function is performed.
Pr. 575 ≠9999
Set 70 or 170 in Pr. 190 or
Pr.192. ∗3
SE SE
Output terminal
common
Common terminal for open collector
output terminal.
∗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 (output terminal function selection)
, the terminal output has negative logic.
(Refer to page 119 for details)
∗4
When
Pr. 561 PTC thermistor protection level
≠
"9999", terminal 2 is not available for set point input.
Use
Pr. 133
for set point input.
NOTE
Changing the terminal function using any of Pr. 178 to Pr. 182 and Pr. 190, Pr. 192 may affect the other functions. Make
setting 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 150 for setting)