NZ8000 ПЧ с векторным управлением в замкнутом контуре
* Обеспечивает 150%(100%) -й пусковой момент
* Новая серия частотных преобразователей NZ8000 с векторным управлением в замкнутом контуре
* Векторное упарвление в разомкнутом контуре( без PG), векторное упарвление в замкнутом контуре( с PG), контроль V/F
* Режим разгона/торможения: Линейный или по s-образной кривой, 4 группы времени разгона/торможения; диопазон 0.0~6500.0 сек.
* Встроенный порт RS485 с поддержкой стандартного протокола Modbus.
* Ускорение ограничения тока: Мак.ограничение уменьшения помехи сверхтока
* Превосходное свойство: По высоко-эффективному токовому векторному управлению совершать управление асинхронным и синхоронным двигателем
* Управление по времени: Заданный диапозон времени: 0,0-6000,0 мин.
* Полный комплекс защитных функций. Высокоточное измерение тока, многоуровневая защита от перегрузки, защита от перенапряжения и сверхтока, от короткого замыкания, функция поиска скорости, подключение термистора двигателя и другое.
* Модульный дизайн. Большой разряд инкрементального энкодерадля прецизионного регулирования скорости
* Энергосберегающая функция
Технические характеристики серии NZ8000
Open loop vector control (without PG card)
close loop vector control (with PG card)
V/F control: Built-in PID control
Can support Profibus communication protocol (optional)
Support many types of PG card
Specified model in many industries, can achieve funtions like tension control, magnetoelectric motor and so on.
Spetifications series NZ8000
| Items |
Specifications |
| Control method |
Open loop vector control (without PG card); close loop vector control (with PG card); V/F control |
| Frequency range |
Vector control: 0-320Hz; V/F control: 0-3200Hz |
| Setting of carrier frequency |
1kHz-16kHz, can adjust carrier frequency automatically according to loading characteristics. |
| Resolution ratio of input frequency |
Digital setting: 0.01Hz |
| Simulating Setting: Max frequency * 0.025% |
| Starting torque |
G type model: 0.5 Hz / 150% (without PG); 0Hz / 180% (with PG) |
| P type model: 0.5Hz / 100% |
| Speed adjusting range |
1:100 (without PG) 1:1000 (with PG) |
| Stable speed precision |
±0.2% (without PG) ±0.02% (with PG) |
| Torque controlling precision |
±5% (with PG) |
| Overload capacity |
G type model: 150% of rated current can last at most 60s, 180% of rated current can last at most 3s, P type model: 120% of rated current can last at most 60s, 150% of rated current can last at most 3s |
| Improve of torque |
automatic improve of torque; improve of torque by hand 0.1% - 30.0% |
| V/F curve |
Three methods: linear type, multi points type; nth power V/F curve (1.2th power, 1.4th power, 1.6th power, 1.8th power, 2th power) |
| V/F separte |
2 methods: all separte and semi separte |
| Acceleration / Deceleration curve |
Linear type or S curve method of accleration / deceleration. Four types of accleration / deceleration time, accleration / deceleration time range is 0.0 - 6500.0 S |
| DC brake |
DC brake freuquency: 0.00Hz - max frequency. Brake time: 0.0S - 100.0S. Brake action current value: 0.0% - 100.0% |
| Jog control |
Jog frequency range: 0.00Hz - 50.00 Hz, jog accleration / deceleration time 0.0S - 6500.0S |
| PLC multi stage speed operation |
Can achieve at most 16 stage speed operation by built-on PLC or control terminals. |
| Built-in PID |
Can convenient achieve precedure control close loop control system |
| Automatic voltage adjusting |
When power grid voltage changes, can keep output voltage stable automatically. |
| Control of losing speed from overvoltage and overcurrent |
Limit automatically the current and voltage during operation, to prevent frquent tripping operation of overcurrent and over voltage. |
| Quick limit of current function |
Decrease overcurrent breakdown at biggest level, to protect inverter run normally |
| Torque limit and control |
"Navy" characteristic, limit torque automatically during operation, to prevent frquent tripping operation of overcurrent, close loop vector control can achieve torque control.
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