Toshiba TOSVERT VF-nC3 User Manual

E6581595
F-37
6
6.14 Setting motor constants
 : Auto-tuning
 : Motor rated current
 : Slip frequency gain  : Motor no-load current
 : Automatic torque boost value  : Motor rated speed
 : Motor rated capacity  : Load inertia moment ratio
To use vector control, automatic torque boost and automatic energy saving, motor constant setting (motor tuning)
is required. The following three methods are available to set motor constants.
1) Using the torque boost setting macro function () for setting the V/F control mode selection () and
auto-tuning () at the same time
2) Setting V/F control mode selection () and auto-tuning () independently
3) Combining the V/F control mode selection () and manual tuning
Caution:
If the settings for V/F control mode selections  are : automatic torque boost control, : vector control,
: energy saving.
Look at the motor's name plate and set the following parameters.
: 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.
[Selection 1: Setting by parameter setting macro torque boost]
This is the easiest of the available methods. It conducts vector control and auto-tuning at the same time.
Be sure to set the motor for , , , ,  .
Set  to  (Automatic torque boost + auto-tuning)
Set  to  (Vector control + auto-tuning)
Set  to  (Energy-saving + auto-tuning)
Refer to section 5.4 for details of the setting method.

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