Omron MX2 Series - Torque Bias Function Settings

6 Vector Control and Applied Functions
6 - 17
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
P039/P040
Speed
Speed
monitor
Torque reference
input
Torque limit
(P037)
tion value
Speed limit
value
Torque reference
(Reference value for
torque control)
6-4-2 Torque Bias Function Settings
Use this function to apply bias to the torque reference in the torque control mode.
• This function is enabled when the 1st/2nd Control Method (A044/A244) is set to 03 (Sensorless vec-
tor control).
• Set the Torque Bias Selection (P036) to 01 (Input via Digital Operator).
• The torque control function regards the torque reference value equivalent to the rated output current
To convert it to the rated motor torque ratio, use the following formula:
Rated motor torque ratio = [Torque bias set value]  [Rated output current of inverter] / [Rated
motor current]
• In the Torque Bias Polarity Selection (P038), set the polarity of the torque bias value.
00: As per sign
The forward torque increases when the Torque Bias Value is positive (+) and the reverse torque
increases when the Torque Bias Value is negative (−), independent of the RUN direction.
01: Dependent on RUN direction
The direction in which the torque bias function works depends on the RUN command direction.
Forward command: Forward torque increases when Torque Bias value is positive (+).
Reverse torque increases when Torque Bias value is negative (−).
Reverse command: Reverse torque increases when Torque Bias value is positive (+).
Forward torque increases when Torque Bias value is negative (−).
Parameter
No.
Function name
Data
Default
data
Unit
P036
Torque Bias Selection
00: Disabled
01: Digital Operator
05: Option (No applicable Option)
00
−
P037
Torque Bias Value
−200. to 200. (Enabled when P036 = 01)
0.
%
P038
Torque Bias Polarity
Selection
00: As per sign
01: Dependent on RUN direction
00
−
6
6-4 Torque Control
6-4-2 Torque Bias Function Settings
of the inverter as 100%.