Increasing Starting Torque - Toshiba TOSVERT VF-S11 Instruction Manual

[Parameter setting]
Title
Acceleration time 1
Deceleration time 1
Note: When the acceleration/deceleration time is set at 0.0 seconds, the inverter speed increases or reduces
speed within 0.05 seconds.
If the programmed value is shorter than the optimum acceleration/deceleration time determined by load
conditions, overcurrent stall or overvoltage stall function may make the acceleration/deceleration time
longer than the programmed time. If an even shorter acceleration/deceleration time is programmed, there
may be an overcurrent trip or overvoltage trip for inverter protection. (For further details, see 13.1)
5.2

Increasing starting torque

: Automatic torque boost
• Function
Simultaneously switches inverter output (V/F) control and programs motor constants automatically (On-
line automatic-tuning function) to improve torque generated by the motor. This parameter integrates the
setting of special V/F control selection such as vector control.
Title
Automatic torque boost
Note: Parameter displays on the right always return to
Ex.
1) Increasing torque automatically according to the load
Set the automatic control
When the automatic control parameter
keeps track of the load current in any speed range and automatically adjusts the output voltage to ensure
enough torque and stable operation.
Function
Function
0: Disabled
1: Automatic torque boost + auto-tuning
2: Vector control + auto-tuning
3: Energy saving + auto-tuning
is set to (automatic torque boost + auto-tuning)
is set to
E-3
Adjustment range
0.0-3200 sec.
0.0-3200 sec.
Adjustment range
after setting. The previous setting is displayed on the left.
(automatic torque boost + auto-tuning), the inverter
E6581158
Default setting
10.0
10.0
5
Default setting
0