Torque Control; Torque Bias Function - Omron 3G3MX2 User Manual

Torque Control

This function is enabled only when Sensorless Vector Control is selected for control method (A044/A244 = 03).
To operate in the torque control, allocate "52: ATR" to any multi-function input terminal. While
the ATR terminal is turned on, the torque reference input is enabled.
The torque reference source can be selected from two analog types, Digital Operator, etc.
using P033. When analog setting is used, the full-scale value is 200%. (When voltage is used,
10 V corresponds to 200%.)
The torque control speed depends on the balance between torque and load. To prevent the
Inverter from running out of control, set a speed limit value in P039 (forward) or P040 (reverse).
Increasing the speed/torque control switching time reduces the switching shock. The torque reference
value under this function assumes that the torque corresponding to the Inverter's rated current is
100%. Accordingly, the absolute value of torque varies depending on the motor to be combined.
Parameter
No.
Torque Reference Input
P033
P034
P039
Torque Control (forward)
P040
Torque Control (reverse)
P041
C001 to
C008

Torque Bias Function

This function is used to apply a bias to the torque reference generated by torque control. This function
is enabled only when Sensorless Vector Control is selected for control method (A044/A244 = 03).
The torque bias value under this function assumes that the torque corresponding to the Inverter's rated
current is 100%. Accordingly, the absolute value of torque varies depending on the motor to be combined.
Parameter
No.
P036
P037
P038
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
Function name
00: Input from the FV terminal
01: Input from the FI terminal
Selection
03: Input via the Digital Operator
06: Input from optional board
Torque Reference 0. to 200.
Setting (Torque reference when P033 = 03)
Speed Limit Value in 0.00 to 99.99/100.0 to 120.0
Speed Limit Value in 0.00 to 99.99/100.0 to 120.0
Speed/Torque Control 0 to 1000
Switching Time
Multi-function Input 52: ATR (Torque reference input
Selection
Function name
00: Disabled
Torque Bias Mode 01: Set via the Digital Operator
05: Input from optional board
−200 to +200
Torque Bias Value
(Enabled when P036 = 01)
00: As per sign
Torque Bias Polarity
*1
Selection
01: Depends on the RUN direction
5-11 Sensorless Vector Control
Data
(10V = 200%)
(20 mA = 200%)
permission)
Data
Default
Unit
setting
00 −
5
0. %
0.00 Hz
0.00 Hz
0. ms
− −
Default
Unit
setting
−
00
0. %
−
00
5-156