Toshiba TOSVERT VF-MB1 Instruction Manual page 103

  

If vector control cannot be programmed....
First read the precautions about vector control in section 5.12-9).
1) If the desired torque cannot be obtained ⇒ Refer to section 6.21 selection 2
2) If auto-tuning error "" appears ⇒ Refer to section 6.21 selection 4
 (Torque boost setting macro function) and  (V/F control mode
selection)
Automatic torque boost is the parameter for setting V/F control mode selection () and auto-tuning
() together. That is why all parameters related to change automatically when  is changed.

Displays  after resetting

Automatic torque boost +

auto-tuning
Vector control + auto-tuning

Energy saving + auto-tuning

4) Increasing torque manually (V/F constant control)
This is the setting of constant torque characteristics that are suited for such things as conveyors. It can also
be used to manually increase starting torque.
If V/F constant control is programmed after changing ,
Set V/F control mode selection  =  (V/F constant).
Note 7: To further increase torque, increase the torque boost value 1().
How to set the torque boost value 1()
Note 8: V/F control selection = 1 (variable torque) is an effective setting for load such as fans and
pumps.
Press the center of the setting dial to save the changed parameter.
 and the parameter are displayed alternately.
Automatically programmed parameters

- Check the programmed value of .
Automatic torque boost

Vector control

Energy saving

E-9
E6581697

-
Auto-tuning
executed

(after execution: 0)
Auto-tuning
executed

(after execution: 0)
Auto-tuning
executed

(after execution: 0)
 Refer to section 5.12.1)
 Refer to section 5.13
 Refer to section 5.12.2)
5