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Special operation and frequency control
4
PARAMETERS
(4) 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 (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 dancer control valid.
Input the main speed command (external, PU, communication). The main speed command in any operation mode can be
input. (Note that terminal 4 can not be used as the main speed command.)
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.
REMARKS
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 RS-485 communication, enables
dancer 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 dancer
control. ∗1
Set 14 in any of Pr. 178 to Pr. 182.
44
Measured value
input
Input the signal from the dancer roller
detector (measured value signal).
Pr.128 = 40, 41, 42, 43
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 measured
value signal exceeded the maximum
value
(Pr. 131).
Pr.128 = 40, 41, 42, 43
Pr.131 ≠ 9999
Set 15 or 115 in Pr.190 or Pr.192. ∗3
FDN Lower limit output
Output when the measured value signal
falls below the minimum value (Pr. 132).
Pr.128 = 40, 41, 42, 43
Pr.132 ≠ 9999
Set 14 or 114 in Pr.190 or Pr.192. ∗3
RL
Forward (reverse)
rotation direction
output
Output is "ON" when the output
indication of the parameter unit is
forward rotation (FWD) and "OFF" when
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
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 dancer 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)
NOTE
Changing the terminal function using any of Pr. 178 to Pr. 182, 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)
Turn OFF PID output suspension function (Pr. 575 = "9999") while using dancer control.
When Pr. 561 PTC thermistor protection level ≠ "9999", terminal 2 is not available for main speed command. Terminal 2 is
used as PTC thermistor input terminal.