Omron SYSDRIVE MX2 SERIES - Automatic Torque Boost

5-50
5-5 Settings Relating to Control Method
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
Automatic Torque Boost
If Automatic torque boost is selected for Torque Boost Selection (041/A241 = 01), the output
frequency and output voltage are adjusted automatically according to the load level.
The output voltage due to automatic torque boost is added to the manual torque boost voltage.
If the desired characteristics cannot be achieved, adjust the Manual Torque Boost Parameters
(A042/A242,A043/A243) by referring to the table below.
Set Motor Capacity (H003/H203) and Motor Pole Number (H004/H204) accurately according
to the motor used.
To avoid a overcurrent trip during deceleration, set the AVR Selection to "Always ON" (A081=
00).
If the desired characteristics cannot be achieved using automatic torque boost, adjust each
item by referring to the table below.
Phenomenon Adjusting method
Adjustment
item
Insufficient torque at low
speed
(Motor does not rotate at low
speed.)
(1) Gradually increase the Manual Torque Boost
Voltage Setting.
A042/A242
(2) Gradually increase the Automatic Torque Boost Slip
Compensation Gain.
A047/A247
(3) Gradually increase the Automatic Torque Boost
Voltage Compensation Gain.
A046/A246
(4) Reduce the set value of the Carrier Frequency. b083
Rotation speed lowers when
load is applied.
Gradually increase the Automatic Torque Boost Slip
Compensation Gain.
A047/A247
Rotation speed increases
when load is applied.
Gradually reduce the Automatic Torque Boost Slip
Compensation Gain.
A047/A247
Overcurrent trip occurs when
load is applied.
(1) Gradually reduce the Automatic Torque Boost
Voltage Compensation Gain.
A046/A246
(2) Gradually reduce the Automatic Torque Boost Slip
Compensation Gain.
A047/A247
(3) Gradually reduce the Manual Torque Boost Voltage
Setting.
A042/A242