Toshiba TOSVERT VF-nC3 User Manual

E6581595
E-9
5
When vector control cannot be programmed
First read the precautions about vector control in section 5.11-6).
1) If the desired torque cannot be obtained ⇒ Refer to section 6.14 selection 2
2) If auto-tuning error "" appears ⇒ Refer to section 6.14 selection 3
 (Torque boost setting macro function) and  (V/F control mode
selection)
Automatic torque boost is the parameter for setting V/F control mode selection () and auto-tuning
() together. That is why all parameters related to change automatically when  is changed.
Automatically programmed parameters
  

Displays  after resetting - Check the programmed value of . -

Automatic torque boost +
auto-tuning

Automatic torque boost

Auto-tuning
executed
(after execution: 0)

Vector control + auto-tuning

Vector control

Auto-tuning
executed
(after execution: 0)

Energy saving + auto-tuning

Energy saving

Auto-tuning
executed
(after execution: 0)
4) Increasing torque manually (V/F constant control)
This is the setting of constant torque characteristics that are suited for such things as conveyors. It can also be
used to manually increase starting torque.
If V/F constant control is programmed after changing ,
Set V/F control mode selection  =  (V/F constant).
 Refer to section 5.11
Note 1: To further increase torque, increase the torque boost amount 1.
How to set the torque boost amount 1  Refer to section 5.12
Note 2: V/F control selection = 1 (variable torque) is an effective setting for load such as fans and
pumps.  Refer to section 5.11

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