Toshiba TOSVERT VF-P7 Instruction Manual page 67

■(Automatic V/f mode setting) and (Motor control mode selection)
The automatic control parameter is designed to set motor control mode selection parameter
() and the auto-tuning parameter() by one operation. Therefore, changing the 
setting causes the settings of all related parameters to be changed automatically.

 is always displayed.

Automatic torque boost

+auto-tuning
Vector control (speed) +

auto-tuning
Automatic energy-saving +

auto-tuning
4) To increase torque manually (V/f constant control)
The VF-P7 inverter has been set to this control mode by default.
This control mode in which the torque is kept constant is suitable for belt conveyers, and so on.
It is recommended to select this mode if you want to manually increase the starting torque.
To return to the V/f constant control mode after changing the setting of the parameter
Set the motor control mode selection parameter  at (constant torque)
Note 1) If there is a need to further increase the torque, increase the torque boost rate, using the
manual torque boost parameter
boost parameter
2) The square reduction torque characteristic (set the motor control mode selection
parameter at ) is effective in controlling such loads as fans and pumps.
Check the  setting (set value).
 ((constant torque) if no change is
made to )
Automatic torque boost

Sensor-less vector control

(speed control)
Automatic energy-saving +

sensorless vector control
. For the procedure for setting the manual torque


E-5
Parameters set automatically

=> Refer to 5.10
=> Refer to 5.12)
=> Refer to 5.10

−
Executed (Returns
to  after
execution)
Executed (Returns
to  after
execution)
Executed (Returns
to  after
execution)
,
