Automatic Torque Boost - Omron SYSDRIVE MX2 SERIES User Manual

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
Insufficient torque at low
speed
(Motor does not rotate at low
speed.)
Rotation speed lowers when
load is applied.
Rotation speed increases
when load is applied.
Overcurrent trip occurs when
load is applied.
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5-5 Settings Relating to Control Method
Adjusting method
(1) Gradually increase the Manual Torque Boost
Voltage Setting.
(2) Gradually increase the Automatic Torque Boost Slip
Compensation Gain.
(3) Gradually increase the Automatic Torque Boost
Voltage Compensation Gain.
(4) Reduce the set value of the Carrier Frequency.
Gradually increase the Automatic Torque Boost Slip
Compensation Gain.
Gradually reduce the Automatic Torque Boost Slip
Compensation Gain.
(1) Gradually reduce the Automatic Torque Boost
Voltage Compensation Gain.
(2) Gradually reduce the Automatic Torque Boost Slip
Compensation Gain.
(3) Gradually reduce the Manual Torque Boost Voltage
Setting.
Adjustment
item
A042/A242
A047/A247
A046/A246
b083
5
A047/A247
A047/A247
A046/A246
A047/A247
A042/A242
5-50