Toshiba TOSVERT VF-nC3 User Manual

E6581595
C-19
3
 Setting of motor electronic thermal protection level 1  (Same as f173)
If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor
is smaller than the rated current of the inverter, adjust the electronic thermal protection level 1  so
that it fits the motor's rated current.
* If the indications are in percentages (%), then 100% equals the inverter's rated output current (A).

×1.0
Output frequency (Hz)
Output current reduction facto
r
[%]
/
[A]
0
Note) The start level for motor overload reduction is fixed at 6 Hz.
6Hz

×0.6
2) Motor 150%-overload time f607
Parameter f607 is used to set the time elapsed before the motor trips under a load of 150% (overload trip
2) within a range of 10 to 2400 seconds.
3) Inverter overload characteristics
Set to protect the inverter itself. The setting of this parameter cannot be turned to off.
When an inverter overload trip () operates, operation can be improved by lowering stall operating level
, or increasing acceleration time  and deceleration time .
Inverter overload protection characteristic
100%: Inverter rated output current
time [s]
Inverter overload
Monitored output current [%]
0
110% 150%
Current [%]
Inverter overload time [s]
(Outline data)
111 2400
120 242
130 120
140 80
150 60
175 3
200 0.5
60

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