Related Parameter - Toshiba TOSVERT VF-A7 Manual

1. Introduction
Thank you for purchasing the Toshiba industrial inverter "TOSVERT VF-A7/P7".
This manual functionally describes the light-load high-speed operation of our "TOSVERT VF-A7/P7" for
industrial use.
2. Function
This parameter provides a function of more raising the speed of motor during light load to improve the
operating efficiency of machine.
It is effectively applicable to elevators and conveyers under constant-torque loads with alternated light and
heavy loads.

3. Related parameter

List of parameters for adjusting light-load high-speed operation
Communi
Title
cation No
0330 Light-load high-speed operation

Light-load high-speed operation
0331

switching lower limit frequency
Light-load high-speed operation
 0332
load waiting time
Light-load high-speed operation
 0333
load detection time
Light-load high-speed operation
0334

heavy load detection time
Switching load torque current
0335

during forward run
Heavy load torque during
 0336
acceleration in forward direction
Heavy load torque during fixed
 0337
speed in forward direction
Switching load torque current
0338

during reverse run
Heavy load torque during
0339

acceleration in reverse direction
Heavy load torque during fixed
 0340
speed in reverse direction
Automatic light-load high-speed
0341

operation frequency
0342 Light-load detection mode *2

*1 F330= 0: Disabled light-load high-speed operation
1: User interface (torque current)
2: Continuous automatic mode (torque current)
3: Continuous preset-speed mode (torque current)
4: Enabled-terminal effective automatic mode (torque current)
5: Enabled-terminal effective preset-speed mode (torque current)
6: User interface (torque)
7: Continuous automatic mode (torque)
8: Continuous preset-speed mode (torque)
9: Enabled-terminal effective automatic mode (torque)
10: Enabled-terminal effective preset-speed mode (torque)
*2 These are not before CPU version V312.
Adjustment
Function
range
0〜10 *1
30.0〜 [Hz]
0.0〜10.0 [s]
0.0〜10.0 [s]
0.0〜10.0 [s]
0〜250 [%]
0〜250 [%]
0〜250 [%]
0〜250 [%]
0〜250 [%]
0〜250 [%]
30.0〜 [Hz]
0〜255
*2
*2
Min. unit (panel/ Default Write during
communication) setting running
0 Disabled
−
0.01/0.01 40.0 Enabled
0.1/0.1 1.0 Enabled
0.1/0.1 1.0 Enabled
0.1/0.1 2.0 Enabled
1 50 Enabled
1 150 Enabled
1 100 Enabled
1 50 Enabled
1 150 Enabled
1 100 Enabled
0.01/0.01 80.0 Enabled
1/1 0 Disabled
Sensorless vector/vector with sensor (●: Valid，−: Invalid)
*2
*2
*2
1
E6581172①
Vector control
V/f
Speed Torque Position
Constant
control control control
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●
●/● − − ●