LSIS LSLV0055H100-4COFN - Auto Torque Boost; Auto Torque Boost 2 (no Motor Parameter Tuning Required)

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Learning Basic Features
Excessive torque boost will result in over-excitation and motor overheating
4.14.2 Auto Torque Boost
Set DRV-15 to ‗Auto 1‘ or ‗Auto 2‘ to select the type of torque boost. While manual torque
boost adjusts the inverter output based on the setting values regardless of the type of load
used in the operation, auto torque boost enables the inverter to automatically calculate the
amount of output voltage required for torque boost based on the entered motor parameters.
Because auto torque boost requires motor-related parameters such as stator resistance,
inductance, and no-load current, auto tuning (BAS-20) has to be performed before auto
torque boost can be configured. Similarly to manual torque boost, configure auto torque
boost while running a load that requires high starting torque, such as lift-type loads. Refer to
5.21 Auto Tuning on page 212.
4.14.3 Auto Torque Boost 2 (No Motor Parameter Tuning Required)
By adjusting the auto torque boost voltage gain set at DRV-15 (ATB Volt Gain), automatic
torque boost may be operated without tuning the motor-related parameter values. The
DRV-15 (ATB Volt Gain) value is used to adjust the amount of compensation required for
each load. It prevents stalls or overcurrent fault trips at start up.
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
DRV
15
torque boost
mode
Torque
Boost
1
Auto 1
0–2
-
BAS
20
auto tuning
Auto Tuning
3
Rs+Lsigma
0–3
-
Group
Code
Name
LCD Display
Settings
Setting Range
Unit
DRV
15
Torque boost
mode
Torque
Boost
2
Auto 2
0–2
-
CON
21
Auto torque boost
filter gain
ATB Filt
Gain
10
1 - 9999
msec
CON
22
Auto torque boost
voltage gain
ATB Volt
Gain
100.0
0 - 300.0
%