Toshiba TOSVERT VF-nC3 Instruction Manual page 66

3
[Using a VF motor (motor for use with inverter)]
Output current reduction factor
[%]/[A]
×1.0
×0.6
0
Note: The motor overload protection start level is fixed at 30Hz.
[Example of setting: When the VFNC3-2007P is running with a 0.4kW motor having 2A rated current]
Operation LED display
panel action

MODE




⇔
Note: The rated output current of the inverter should be calculated from the rated current for frequencies
below 4kHz, regardless of the setting of the PWM carrier frequency parameter ().
 Setting of electronic thermal protection characteristics selection 
Setting value Overload protection
valid

valid

 invalid
invalid

VF motors (motors designed for use with inverters) can be used in frequency ranges lower than those
for standard motors, but their cooling efficiency decreases at frequencies below 6Hz.
30Hz Output frequency (Hz)
Operation
Displays the output frequency. (Perform during operation stopped.)
(When standard monitor display selection = [Output frequency])
The first basic parameter "" (history function) is displayed.
Turn the setting dial to change the parameter to .
Parameter values can be read by pressing the center of the setting
dial (default setting is 100%).
Turn the setting dial to change the parameter to % (= motor
rated current/inverter output rated current ×100=2.0/4.2×100)
Press the center of the setting dial to save the changed parameter.
 and the parameter are displayed alternately.
Overload stall
invalid
valid
invalid
valid
C-18
E6581595