Toshiba TOSVERT VF-nC3 User Manual

E6581595
C-18
3

×0.6

×1.0
Output frequency (Hz)
Output current reduction factor
[%]/[A]
0
30Hz
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
panel action
LED display 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.
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 ().
[Using a VF motor (motor for use with inverter)]
 Setting of electronic thermal protection characteristics selection 
Setting value Overload protection Overload stall

valid invalid

valid valid

invalid invalid

invalid valid
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.
MODE

Toshiba TOSVERT VF-nC3 Specifications

General

Model	VF-nC3
Category	Inverter
Output Frequency Range	0.1 to 400 Hz
Control Method	V/f control, sensorless vector control
Overload Capacity	150% for 60 seconds
Input Frequency	50/60 Hz
Enclosure Rating	IP20
Input Voltage	200-240V AC
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit
Ambient Temperature	-10°C to +50°C
Communication	Modbus RTU
Cooling Method	Fan Cooled
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m
Braking Unit	Built-in braking transistor (for models up to 22kW), External braking resistor required