1. Введение
The AT1-4000X Variable Frequency Drive (VFD) is designed to provide precise speed control for 3-phase 4kW AC motors, operating from a single-phase 220V AC input. This VFD utilizes a unique control method to achieve high torque, high accuracy, and a wide speed regulating range, ensuring high performance in various applications.
Ключевые особенности включают в себя:
- Excellent anti-trip performance and adaptability to challenging power conditions, temperature fluctuations, humidity, and dust interference, significantly enhancing stability.
- Optimized PWM control technology and electromagnetic compatibility for low noise and reduced electromagnetic interference.
- User-friendly design for easy operation and wiring.
- Fast start and stop response with substantial torque at low speeds.
2. Меры предосторожности
Failure to follow these instructions may result in death, serious injury, or significant property loss.
- Перед выполнением любых работ по прокладке проводов или техническому обслуживанию всегда убедитесь, что источник питания отключен.
- Never connect the U/V/W output terminals to the AC power supply. Doing so will cause severe damage to the inverter.
- Do not install the inverter in environments with flammable or explosive gases, as this poses a risk of explosion.
- The ground terminal (GND) of the inverter must be properly and securely grounded.
- Only qualified professionals should perform internal wiring or open the inverter's casing due to the presence of high voltage.

3. Продукт закончилсяview
The AT1-4000X VFD features a clear digital display and an intuitive control panel for easy monitoring and adjustment of motor parameters. The unit is designed for efficient heat dissipation with integrated cooling fins and fans.
3.1 Панель управления
Передняя панель включает в себя:
- Цифровой дисплей: Shows operational parameters such as frequency (Hz), forward/reverse status (FWD/REV), and revolutions per minute (r/min).
- Показатели: Power, Hz, FWD, REV, r/min.
- Кнопки:
DISP: Display mode selection.PROG: Program mode entry/exit.FUNC/DATA: Function/Data entry.FWD/REV: Forward/Reverse direction control.▲(Up Arrow): Increase value or navigate menus.▼(Down Arrow): Decrease value or navigate menus.RUN: Start motor operation.STOP/RESET: Stop motor operation or reset errors.
- Поворотная ручка: For fine adjustment of frequency or parameter values.
3.2 Терминалов
The VFD is equipped with clearly labeled terminals for power input and motor output.

4. Технические характеристики
| Особенность | Спецификация |
|---|---|
| Модель | АТ1-4000Х |
| Номинальный объемtagе (ввод) | AC 220V (Single Phase) |
| Suitable Motor Power | 4кВт |
| Метод контроля | V/F Open Loop |
| Выход Voltage Adjustable Method | Управление ШИМ |
| Номинальный выходной ток | 20А |
| Maximum Output Frequency Range | 0 - 400Hz |
| Тип | Inverter Motor Drive |
| Источник | Материковый Китай |
| Размеры упаковки (Д x Ш x В) | 23 см х 23 см х 16 см |
| Вес упаковки | 1.498 кг |
5. Настройка
Before proceeding with installation and wiring, ensure all safety precautions are understood and followed. Installation should be performed by qualified personnel.
5.1 Среда установки
- Install the VFD in a clean, dry, and well-ventilated area.
- Avoid direct sunlight, high temperatures, excessive humidity, and dusty environments.
- Ensure there is sufficient space around the unit for proper heat dissipation.
- Не устанавливайте вблизи легковоспламеняющихся и взрывоопасных материалов.
5.2 Инструкции по подключению
The VFD is designed for simple wiring. Always ensure the power supply is OFF before connecting any wires. Connect wires after removing the terminal screws.

| Терминал | Функция | Описание |
|---|---|---|
| Л, Н | Вход переменного тока 220 В | Connect to single-phase AC 220V power supply. |
| У, В, Ш | 3-Phase AC Motor Output | Connect to the three-phase AC motor terminals. |
| Земля | Земля | Подключитесь к надежному заземлению. |
6. Инструкция по эксплуатации
Once the VFD is correctly installed and wired, you can begin operation. Familiarize yourself with the control panel functions.
6.1 Основные операции
- Включение питания: Ensure all connections are secure, then apply single-phase 220V AC power to the L and N terminals. The VFD display should illuminate.
- Запуск двигателя: Нажмите
RUNbutton to start the motor. The FWD or REV indicator will light up depending on the current direction setting. - Регулировка частоты/скорости: Use the rotary knob to adjust the output frequency, which in turn controls the motor speed. The display will show the current frequency (Hz) or RPM (r/min).
- Изменить направление: Нажмите
FWD/REVbutton to toggle the motor's rotation direction. - Остановить двигатель: Нажмите
STOP/RESETкнопку остановки двигателя.
6.2 Программирование параметров
The PROG и FUNC/DATA buttons, along with the arrow keys (▲, ▼), are used to access and modify various operating parameters. Refer to the detailed programming manual (if available) for specific parameter settings relevant to your application.
- Нажимать
PROGto enter or exit programming mode. - Использовать
▲и▼to navigate through parameter groups or individual parameters. - Нажимать
FUNC/DATAto select a parameter for editing or to confirm a value. - Use the rotary knob or arrow keys to change the parameter value.
- Нажимать
FUNC/DATAЧтобы сохранить новое значение, сделайте это еще раз.
7. Техническое обслуживание
Regular maintenance helps ensure the longevity and reliable operation of your VFD.
- Уборка: Содержите частотно-регулируемый привод в чистоте, удаляя пыль и мусор. Для чистки используйте мягкую сухую ткань. Не используйте жидкие чистящие средства.
- Вентиляция: Ensure that the cooling fans and ventilation openings are not obstructed to prevent overheating.
- Инспекция: Периодически проверяйте все электрические соединения на надежность крепления и наличие признаков износа или повреждений.
- Професиональные услуги: Due to high internal voltages, any internal inspection or repair should only be performed by qualified service personnel. Do not attempt to open the VFD casinсамоанализируйте.
8. Поиск Неисправностей
В этом разделе представлены общие рекомендации по решению распространённых проблем. В случае сложных проблем обратитесь в службу технической поддержки.
| Проблема | Возможная причина | Решение |
|---|---|---|
| VFD не включается | No input power; Incorrect wiring | Check power supply and input wiring (L, N). |
| Двигатель не работает | Motor wiring incorrect; VFD in STOP mode; Parameter error | Verify motor wiring (U, V, W); Press RUN; Check programmed parameters. |
| Нестабильная скорость двигателя | Incorrect V/F settings; Motor load fluctuations | Adjust V/F curve parameters; Ensure motor is suitable for load. |
| Ошибка перегрузки | Motor overloaded; Incorrect overload protection setting | Reduce motor load; Check and adjust overload protection parameters. |
If an error occurs, the VFD display may show an error code. Press the STOP/RESET button to clear the error after addressing the cause.
9. Советы пользователю
- For optimal performance, ensure the VFD is matched correctly to your motor's power rating (e.g., 4kW motor for this 4kW VFD).
- When adjusting frequency, make gradual changes to avoid sudden motor stress.
- Always ensure proper grounding to prevent electrical hazards and ensure stable operation.
- Keep the VFD's ventilation clear to prevent overheating, especially during continuous operation.
10. Гарантия и поддержка
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the point of purchase or contact the seller directly. Keep your purchase records handy when seeking support.






