Mitsubishi Electric FR-D720S SC EC Instruction Manual page 408

Special operation
I/O signals and parameter setting
Set "40 to 43" in Pr. 128 to perform dancer control.
Set "14" in any of Pr. 178 to Pr. 182 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 dancer
control valid.
Input the set point using Pr. 133, then input the measured value signal (dancer roller position
detection signal) across terminal 4 and 5 of the inverter.
NOTES
When Pr. 128 = "0" or X14 signal is off, normal inverter operation is performed without
dancer control.
Turning ON/OFF of bit of the terminal, to which X14 signal is assigned through network as
RS485 communication, enables dancer control.
Signal
X14
FUP
FDN
RL
PID
SE
Tab. 6-91: I/O signals and parameter setting
When the X14 signal is not assigned, only the Pr. 128 setting makes dancer control valid.
The half-tone screened areas indicate the parameter initial values.
When 100 or larger value is set in any of Pr. 190, Pr. 192 or Pr. 197, the terminal output has
negative logic. (For details, refer to section 6.9.5.)
6 - 258
Terminal
Function
used
Depending PID control
on
selection
Pr. 178 to
Pr. 182
Measured
value input
4 4
Upper limit out-
put
Lower limit out-
put
Depending
on Pr. 190/
192/ 197
Forward
(reverse) rota-
tion direction
output
During PID con-
trol activated
Output terminal
SE
common
Description
Turn on X14 signal to perform
dancer control.
Input the signal from the dancer
roller detector (measured value
signal).
4–20mA .... 0–100%
0–5V ......... 0–100%
0–10V ....... 0–100%
Output to indicate that the meas-
ured value signal exceeded the
maximum value (Pr. 131).
Output when the measured value
signal falls below the minimum
value (Pr. 132).
Output is "ON" when the output
indication of the parameter unit is
forward rotation (FWD) and
"OFF" when reverse rotation
(REV) or stop (STOP).
Turns on during PID control.
Common terminal for open col-
lector output terminal.
Parameter
Parameter Setting
Set "14" in any of Pr. 178 to
Pr. 182.
Pr. 128 = 40, 41, 42, 43
Pr. 267 = 0
Pr. 267 = 1
Pr. 267 = 2
Pr. 128 = 40, 41, 42, 43
Pr. 131 ≠ 9999
Set "15" or "115" in any of
Pr. 190, Pr. 192 or Pr. 197.
Pr. 128 = 40, 41, 42, 43
Pr. 132 ≠ 9999
Set "14" or "114" in any of
Pr. 190, Pr. 192 or Pr. 197.
Set "16" or "116" in any of
Pr. 190, Pr. 192 or Pr. 197.
Set "47" or "147" in any of
Pr. 190, Pr. 192 or Pr. 197.