VF-AS1 series frequency inverter is specially designed to solve complex functional tasks with high requirements for dynamics.
- The output frequency range from 0.01 Hz to 500 Hz (optionally up to 1000 Hz)
- Accuracy of output frequency up to 0.01%
- Overcurrent 150% – 60 secs; 165% – 2 seconds
- Operating Temperature -10 … + 60 ° C
- The inverter capable of accurately controlling the speed or engine torque
- The engine management system in a mode of constant and variable torque, V / f characteristic curve with the task 5 points, automatic torque boost, two kinds of sensorless vector speed control and engine torque (basic and precision), vector speed control or torque speed sensor
- Features increase starting torque by more than 200%, keep the engine torque mode avtopodhvat rotating motor, a regenerative mode when the short-term power failure, auto-tuning, including at work, self-education mode when working with hoisting machines, special power-saving mode (output current decrease with decreasing engine load) 4 toggles the setting for various engines, 4 switchable sets of acceleration time and deceleration, 4 switchable tuning motor control mode
- Integrated programmable logic controller (PLC)
- PID controller to control the continuity and reliability of the sensor signal, the time delay and correction function of oscillation
- Built-in EMC filter and DC reactor (18.5 kW)
- Built-in dynamic braking (in models up to 160 kW inclusive)
- Built-in RS-485 port (supports Modbus-RTU protocol). Optional DeviceNet, Profibus, CC-Link
- Optional – additional expansion cards
Specifications
| Manufacturer: | Toshiba |
| Series: | VF-AS1 |
| Model: | VFAS1-4280KPC |
| Application: | lifts / cranes / general purpose |
| Capacity, kW: | 280 |
| Current, А: | 550 |
| Main power supply, V: | 380-480 |
| Phase: | 3 |
| Output frequency, Hz: | 0,01-500 |
| Enclosure: | IP00 |
| Overload capacity, % per 1 min.: | 150 |
| Acceleration time, sec: | 0,01-6000 |
| Deceleration time, sec: | 0,01-6000 |
| EMC filter: | + |
| Braking unit: | + |
| Analog input: | 3 (+2 optional) |
| Digital input: | 8 (+8 optional) |
| Analog output: | 2 (+2 optional) |
| Digital output: | – |
| Relay output: | 1 (+2 optional) |
| RS485 (Modbus RTU): | + (DeviceNet, Profibus, CC-Link, LonWorks, BACnet, Metasys N2 оptional) |
| PID: | PID – controller |
| V/f control mode: | + |
| Vector control with feedback: | + |
| Sensorless vector control: | + |
| Operation temperature, °С: | -10…..+60 |
| Storage temperature, °С: | -25…..+65 |
| Dimensions (W x H x D), mm: | 585х1190х370 |
| Weight, kg: | 207 |
