Table of Contents
Advertisement
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
X14
X64
Depending
Pr. 178 to Pr. 182
X72
2
PU
4
FUP
FDN
Depending
RL
Pr. 190, Pr. 192
PID
SLEEP
Y48
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, Pr. 192 (output terminal function selection), the terminal output has negative logic. (Refer to page 140 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 258 for calibration examples for PID
control.)
254
Function
PID control
selection
PID forward/
on
reverse action
switchover
PID integral value
reset
2
Set point input
—
Set point input
Measured value
4
input
Upper limit output
Lower limit output
Forward (reverse)
on
rotation direction
output
During PID control
activated
PID output
interruption
PID deviation limit
Output terminal
SE
common
"9999", terminal 2 is not available for set point input. Use Pr. 133 for set point input.
Description
Turn ON X14 signal to perform PID
control.
By turning ON X64, forward action can
be selected for PID reverse action (Pr.
128 = 20), and reverse action for forward
action (Pr. 128 =21).
ON: Integral and differential values are
reset
OFF: Normal processing
You can input the set point for PID
control.
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%
1 to 5V.............. 0 to 100%
2 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.
Output when the absolute value of
deviation exceeds the limit value.
Common terminal for open collector
output terminal.
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.
Advertisement
Table of Contents
