Table of Contents
Advertisement
Adjustment of the output torque
(current) of the motor
(2) Set multiple torque boost (RT signal, X9 signal, Pr. 46, Pr. 112)
Use the second (third) torque boost when changing the torque boost according to application or when using
multiple motors by switching between them by one inverter.
Pr. 46 Second torque boost is valid when the RT signal turns ON.
Pr. 112 Third torque boost is valid when the X9 signal is ON. For the terminal used for X9 signal input, set "9" in any
of Pr. 178 to Pr. 189 (input terminal function selection) to assign the X9 signal function.
REMARKS
The RT(X9) signal acts as the second
(Refer to page 239)
The RT signal is assigned to the RT terminal in the default setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.
CAUTION
Increase the setting when the distance between the inverter and motor is long or when motor torque is insufficient in the low-
speed range. If the setting is too large, an overcurrent trip may occur.
The Pr. 0, Pr. 46, Pr. 112 settings are valid only when V/F control is selected.
When using the inverter dedicated motor (constant torque motor) with the FR-A720-00240, FR-A720-00330, FR-A740-00120 or
FR-A740-00170, set the torque boost value to 2%. If the initial set Pr. 71 value is changed to the setting for use with a constant-
torque motor, the Pr. 0 setting changes to the corresponding value in above.
Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
Parameters referred to
Pr. 3 Base frequency, Pr. 19 Base frequency voltage
Pr. 71 Applied motor
Refer to page 189
Pr. 178 to Pr. 189 (Input terminal function selection)
146
(third)
function selection signal and makes the other second
Refer to page 161
Refer to page 235
(third)
functions valid.
Advertisement
Table of Contents
