DEWIN 0.75kW 220V Single-Phase Input Three-Phase Output Variable Frequency Drive Inverter (Model: JLS-E-2S-0.75G) User Manual

1. Información importante de seguridad

Please read this user manual thoroughly before operating the DEWIN Variable Frequency Drive (VFD). Failure to follow instructions may result in electrical shock, equipment damage, or personal injury. Keep this manual for future reference.

Peligro de descarga eléctrica: Este dispositivo funciona con alto volumen.tage. Only qualified personnel should perform installation, wiring, and maintenance.
Desconexión de energía: Always disconnect all power sources before servicing the VFD. Wait at least 10 minutes after removing power to allow capacitors to discharge before touching any components.
Puesta a tierra adecuada: Ensure the VFD is properly grounded according to local electrical codes.
Condiciones ambientales: Install the VFD in a clean, dry, and well-ventilated area, free from dust, corrosive gases, and excessive humidity.

DEWIN 0.75kW VFD with dimensions and warning label — **Figura 1.1:** DEWIN 0.75kW VFD with dimensions (Width: 85mm, Height: 140mm, Depth: 115mm). The warning label indicates to read the manual before operation and to wait 10 minutes after power removal before servicing due to electrical shock risk.

2. Producto terminadoview

The DEWIN Variable Frequency Drive (VFD) is designed to convert single-phase 220V input into three-phase 220V output, allowing for precise speed control of three-phase motors. It features a unique control method for high torque, high precision, and a wide speed range.

2.1 Características principales

Integrated Radiator: Equipped with a radiator for efficient heat dissipation, ensuring stable long-term operation.
Unique Control Method: Achieves high torque, high precision, and a wide speed range.
Fácil de usar: Compact size, easy to install, quick start/stop response, and significant torque at low speeds.
Rendimiento alto: Excellent anti-aging and anti-snap performance, adaptable to sudden power changes, temperature, humidity, and dust interference, enhancing stability.
Nine-Fold Protection: Incluye protección contra sobrevoltaje.tage, bajo volumentage, overcurrent, overload, overtemperature, power module faults, ground faults, short circuits, and motor stall.

Diagram showing nine-fold protection technology icons — **Figura 2.1:** The VFD incorporates nine protection technologies: Overvoltage, subvol.tage, Overcurrent, Overload, Overtemperature, Power Module Protection, Ground Protection, Short Circuit, and Stall Protection.

2.2 Componentes del panel de control

DEWIN VFD control panel with labeled buttons and indicators — **Figura 2.2:** Control Panel Interface. Key components include: Status Indicators (RUN, DIR, TRIP, HZ), Digital Display (showing current, voltage, frequency), Multifunction Key (MF), Menu Key (PRG), Speed Knob, Enter Key (ENTER), Shift Key, Up/Down Selection Keys, Run Key (RUN), and Stop/Reset Button (STOP/RESET).

The control panel is designed for intuitive operation and can be detached for easier wiring and installation via screw terminals.

DEWIN VFD with its control panel detached — **Figura 2.3:** The control panel can be freely removed, simplifying operation and wiring connections through screw terminals.

3. Configuración y cableado

Proper wiring is crucial for the safe and correct operation of the VFD. Ensure all power is disconnected before proceeding with any wiring.

3.1 Basic Power and Motor Wiring

Connect the single-phase 220V AC input to terminals L1 and L2. Connect the ground wire to the ground terminal. Connect the three-phase motor to output terminals U, V, and W.

Basic wiring diagram for DEWIN 220V inverter — **Figura 3.1:** Basic wiring diagram. Connect the 220V single-phase power supply to L1 and L2. Connect the ground wire to the ground terminal. Connect the three-phase motor to U, V, and W.

Simplified wiring diagram for DEWIN VFD applications — **Figura 3.2:** Simplified wiring for wide applications. Shows AC 220V single-phase input connected to the VFD, and AC 220V three-phase output connected to the motor.

3.2 Detailed Control Wiring

The VFD offers various control input and output terminals for advanced functionality, including multi-speed control, analog frequency commands, and fault indications.

Detailed wiring instructions diagram for DEWIN VFD — **Figura 3.3:** Detailed wiring instructions. This diagram illustrates connections for multifunction input terminals (X1-X5 for forward/stop, reverse/stop, fault reset, multi-speed control), common signal terminal (GND), three-phase induction motor (M3~), multifunction indication output contacts (TC, TB, TA), multifunction photoelectric output (Y1), analog output (AO), analog voltage frequency command (AVI), and analog current frequency command. Jumper settings for ground, 485 terminal resistance, AO output, and input selection are also shown.

3.3 Conexión de la resistencia de frenado

The VFD is equipped with an integrated braking resistor. If an external braking resistor is required for applications with high inertia loads or frequent braking, connect it to the P and PB terminals.

Diagram showing integrated braking resistor and external connection points — **Figura 3.4:** The VFD has an integrated braking resistor. For external braking resistor connection, use the P/PB terminals.

4. Instrucciones de funcionamiento

This section describes the basic operation of the VFD using the control panel.

4.1 Encendido y pantalla inicial

After connecting power, the VFD's digital display will illuminate, showing the current operating status or a default frequency. The status indicators (RUN, DIR, TRIP, HZ) will provide visual feedback.

Ajuste de velocidad 4.2

The VFD allows for continuous speed regulation from 0 to 999Hz, providing precise control over motor speed.

Using the Speed Knob: Rotate the speed knob on the control panel to adjust the output frequency and, consequently, the motor speed. Turning clockwise increases speed, counter-clockwise decreases it.
Digital Adjustment: For precise frequency settings, use the PRG (Menu) button to enter parameter settings, then use the Up/Down keys and ENTER button to modify the frequency parameter. Refer to the detailed parameter list in the full manual for specific parameter codes.

DEWIN VFD speed adjustment knob with description — **Figura 4.1:** Adjust speed with a simple turn of the knob. Continuous speed regulation from 0-999Hz is applicable to most motors.

4.3 Start and Stop Operation

Comenzar: Presione el CORRER button to start the motor. The RUN indicator will illuminate.
Stop: Presione el PARADA REPOSICIÓN button to stop the motor. The RUN indicator will turn off.
Reset: If a fault occurs and the TRIP indicator is lit, pressing the PARADA REPOSICIÓN button will clear the fault and reset the VFD.

5. Mantenimiento

Regular maintenance ensures the longevity and reliable operation of your DEWIN VFD.

Limpieza: Keep the VFD clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid cleaners.
Ventilación: Ensure proper airflow around the VFD. The integrated radiator requires unobstructed ventilation to dissipate heat effectively.
Comprobaciones de conexión: Periodically inspect all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to poor performance or damage.
Monitoreo ambiental: Asegúrese de que el entorno operativo permanezca dentro de los rangos de temperatura y humedad especificados para evitar daños.

6. Solución de problemas

Esta sección ofrece orientación general para problemas comunes. Para problemas complejos, consulte a un técnico cualificado.

VFD Not Powering On: Revise la fuente de alimentación de entrada y asegúrese de que todas las conexiones estén seguras. Verifique que el disyuntor o el fusible no estén disparados.
El motor no funciona: Ensure the VFD is receiving a RUN command. Check motor wiring for correct phase sequence and secure connections. Verify the frequency setting is not 0Hz.
TRIP Indicator On: This indicates a fault. Press the PARADA REPOSICIÓN button to clear the fault. If the fault persists, identify the fault code displayed (if any) and refer to the full manual's fault code section for specific causes and remedies. Common faults include overcurrent, overvoltage, y sobrecarga.
Abnormal Motor Noise or Vibration: Check motor parameters in the VFD settings. Ensure the motor is properly mounted and balanced.

7. Especificaciones

Característica	Especificación
Marca	DEWIN
Modelo	JLS-E-2S-0.75G
Potencia nominal	0.75 kW
Vol de entradatage	220V Single-phase
Vol de salidatage	220V Three-phase
Dimensiones (L x An x Al)	115 mm x 85 mm x 140 mm (aprox.)
Peso del artículo	1.12 kilogramos
Rango de frecuencia	0-999Hz (Continuous regulation)

8. Garantía y soporte

For warranty information, please refer to the terms provided at the point of purchase or contact your seller. For technical support or further inquiries, please contact DEWIN customer service through their official channels.

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DEWIN JLS-E-2S-0.75G