Toshiba VF-S15 Instruction Manual page 131

1) Constant torque characteristics
This is applied to loads with equipment like conveyors and cranes that require the same torque at low
speeds as at rated speeds.
* To increase the torque further, increase the setting value of the manual torque boost value 1 ().
2) Setting for fans and pumps
This is appropriate for load characteristics of such things as fans, pumps and blowers in which the torque is
proportional to the square of load rotation speed.
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Setting of V/F control mode selection  to  (V/F constant)
Base frequency voltage


0
Setting of V/F control mode selection  to  (variable torque)
Base frequency voltage


0
Base frequency 
Output frequency (Hz)
Base frequency 
F-19
E6581611
Output frequency (Hz)
 Refer to section 6.4 for details.
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