E6581595
E-18
5
Caution:
When the V/F control mode selection is set to : Automatic torque boost control, : Vector control,
or : Energy-saving, be sure to set the following parameters according to the motor's name plate.
: Base frequency 1 (rated frequency)
: Base frequency voltage 1 (rated voltage)
: Motor rated capacity
: Motor rated current
: Motor rated speed
Set the other motor constants as necessary
1) Constant torque characteristics
Setting of V/F control mode selection to (V/F constant)
This is applied to loads with equipment like conveyors and cranes that require the same torque at low speeds
as at rated speeds.
Output voltage(%)
Base frequency voltage
Output frequency (Hz)
Base frequency
0
* To increase the torque further, increase the setting value of the manual torque boost .
Refer to section 5.12 for details.
2) Setting for fans and pumps
Setting of V/F control mode selection to (variable torque)
This is appropriate for load characteristics of such things as fans, pumps and blowers in which the torque in
relation to load rotation speed is proportional to its square.
Output voltage(%
)
Base frequency voltage
Base frequency
0
Output frequency (Hz)
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