Jectse AT904-7.5KW Variable Frequency Drive User Manual

1. Introducción

This manual provides essential information for the safe and efficient operation of the Jectse AT904-7.5KW Variable Frequency Drive (VFD). This device is designed to control the speed of three-phase AC motors by varying the frequency and voltage of the power supplied to the motor. Please read this manual thoroughly before installation, operation, or maintenance to ensure proper use and prevent potential hazards.

2. Información de seguridad

ADVERTENCIA: La instalación o el funcionamiento incorrectos pueden provocar lesiones graves o la muerte. Solo personal cualificado debe instalar, operar y mantener este equipo.

Always disconnect power before performing any wiring, maintenance, or inspection.
Asegúrese de que el VFD y el motor estén correctamente conectados a tierra.
Do not touch electrical components immediately after power-off; wait at least 10 minutes for capacitors to discharge.
Proteja el VFD de la humedad, el polvo y los gases corrosivos.
Verifique que el volumen de entradatage matches the VFD's specifications.
Do not connect the VFD output directly to a single-phase motor or a power grid.

3. Producto terminadoview

The Jectse AT904-7.5KW VFD is a robust and reliable frequency converter designed for various industrial applications requiring precise motor speed control. It features a durable ABS plastic shell and a user-friendly control panel.

Jectse AT904-7.5KW VFD connected to industrial motors and pumps — Image: The Jectse AT904-7.5KW Variable Frequency Drive shown in an industrial setting, connected to two large blue motors and pumps, demonstrating its application in controlling machinery.

Jectse AT904-7.5KW VFD with examples of industrial equipment it can control — Image: The Jectse AT904-7.5KW VFD unit displayed alongside smaller images of a motor, a chiller unit, and a large fan, illustrating the diverse range of industrial equipment it is designed to control.

Características principales:

Entrada/Salida: Single-phase 220V AC input, three-phase 0-380V AC output.
Compatibilidad de motores: Suitable for 7.5KW (10HP) three-phase motors.
Estabilidad: Integrated filter and V/F open-loop control for stable performance.
Seguridad: Anti-trigger design for resilience against power grid interference, temperature fluctuations, and dust.
Actuación: Delivers high torque, high accuracy, and wide speed regulation range.
Aplicaciones: Ideal for fans, pumps, air compressors, and other motor-driven equipment.

4. Especificaciones

Especificación	Valor
Tipo de producto	Convertidor de frecuencia
Modelo	AT904-7.5KW
Vol de entradatage	Single Phase 220V AC 50/60Hz
Vol de salidatage	Three Phase 0-380V AC 0-400Hz
Corriente de salida máxima	40A
Suitable Motor Power	7.5 kW (10 CV)
Filtrar	Filtro incorporado
Modo de control	V/F Open Loop
Vol de salidatage Modo de regulación	Control de PWM
Material de apariencia	Carcasa de plástico ABS
Tamaño del producto (aprox.)	25 × 18 × 16.5 cm / 9.8 × 7.1 × 6.5 inches
Peso del artículo	4.13 kilogramos
Eficiencia	Alta eficiencia
Forma de onda de salida	De onda sinusoidal pura
Frecuencia	60 Hz
Número de pieza	Jectsepsctoya7hk5178

5. Configuración

Careful installation is crucial for the performance and safety of the VFD. Ensure all safety precautions are followed.

5.1 Desembalaje e inspección

Unpack the VFD and inspect it for any physical damage during transit.
Verifique que todos los componentes enumerados en el contenido del paquete estén presentes.

5.2 Montaje

Monte el VFD verticalmente sobre una superficie estable y no inflamable.
Ensure adequate ventilation space around the unit (minimum 10 cm on all sides) to prevent overheating.
Evite montarlo bajo la luz solar directa, en entornos con alta humedad o polvo.

5.3 Cableado

Refer to the detailed wiring diagrams provided in the included user manual for specific connection points. The following are general guidelines:

Entrada de energía: Connect the single-phase 220V AC power supply to the designated input terminals (typically L1, L2).
Salida del motor: Connect the three-phase 380V motor to the output terminals (typically U, V, W). Ensure the motor is rated for 380V and has a power rating less than or equal to 7.5KW.
Toma de tierra: Conecte el terminal de tierra del VFD a una tierra confiable.
Cableado de control: If external control (e.g., potentiometer, external switches) is used, connect according to the manual's control terminal diagrams.

Jectse AT904-7.5KW VFD showing product dimensions — Image: The Jectse AT904-7.5KW VFD from an elevated perspective, highlighting its compact size and dimensions, which are approximately 25 x 18 x 16.5 cm.

Jectse AT904-7.5KW VFD side vents for cooling — Imagen: Un primer plano view of the side vents on the Jectse AT904-7.5KW VFD, indicating the cooling design for heat dissipation during operation.

6. Instrucciones de funcionamiento

The VFD allows for precise control over motor speed and direction. Familiarize yourself with the control panel before operation.

Jectse AT904-7.5KW VFD being used to control an air compressor — Image: The Jectse AT904-7.5KW VFD positioned in the foreground, with two individuals in the background working on an air compressor, illustrating the VFD's role in controlling industrial equipment.

Jectse AT904-7.5KW VFD with high torsion and accuracy features — Image: The Jectse AT904-7.5KW VFD unit, highlighting its capabilities for high torsion, accuracy, wide speed drive, low noise, and low electromagnetic interference, crucial for industrial applications.

6.1 Funciones del panel de control

Jectse AT904-7.5KW VFD control panel with buttons and display — Image: A close-up of the Jectse AT904-7.5KW VFD's control panel, showing the digital display, rotary knob, and various control buttons for operation, programming, and status indication.

Botón EJECUTAR: Inicia el funcionamiento del motor.
Botón Detener: Detiene el funcionamiento del motor.
Botón JOG: For momentary or step-by-step operation.
Botón PRG: Enters programming mode to adjust parameters.
Botón ENT: Confirma selecciones o cambios de parámetros.
Flechas arriba/abajo: Adjust frequency, speed, or navigate menu options.
Botón giratorio: Provides fine adjustment for frequency or other parameters.

6.2 Funcionamiento básico

Encendido: Ensure all wiring is correct and secure, then apply power to the VFD.
Configuración de parámetros: If necessary, enter programming mode (PRG) to set motor parameters (e.g., rated frequency, maximum frequency, acceleration/deceleration times) according to your motor and application requirements. Refer to the detailed parameter list in the full user manual.
Motor de arranque: Presione el CORRER Botón para arrancar el motor.
Ajustar velocidad: Use the Up/Down arrows or the rotary knob to adjust the motor speed (frequency).
Detener el motor: Presione el DETENER Botón para detener el motor.
Rotación inversa: The VFD supports forward and reverse rotation. Specific instructions for changing direction are typically found in the parameter settings or via dedicated control terminals, as detailed in the comprehensive manual.

7. Mantenimiento

El mantenimiento regular garantiza la longevidad y el funcionamiento confiable de su VFD.

Limpieza: Periodically clean the VFD's exterior and cooling fins to prevent dust accumulation, which can hinder heat dissipation. Use a soft, dry cloth. Do not use liquid cleaners.
Inspección del ventilador: Check the cooling fan for proper operation and ensure it is free from obstructions.
Estanqueidad del terminal: Periodically check all wiring terminals for tightness. Loose connections can cause overheating and malfunction.
Comprobación ambiental: Asegúrese de que el entorno operativo permanezca dentro de los rangos de temperatura y humedad especificados.

Jectse AT904-7.5KW VFD top cooling fan — Imagen: Un detalle view of the top cooling fan on the Jectse AT904-7.5KW VFD, emphasizing its role in maintaining optimal operating temperature.

8. Solución de problemas

This section provides basic troubleshooting steps for common issues. For complex problems, consult a qualified technician or contact customer support.

Problema	Posible causa	Solución
El VFD no se enciende	No input power; incorrect wiring	Check power supply and input wiring. Ensure circuit breaker is on.
El motor no arranca	Incorrect motor wiring; VFD fault; parameter settings incorrect	Verify motor wiring (U, V, W). Check VFD display for error codes. Review motor parameters.
Motor speed is unstable	Load fluctuations; incorrect V/F curve setting	Check motor load. Adjust V/F curve or other speed control parameters.
Fallo de sobrecorriente/sobrecarga	Motor overload; short circuit in motor wiring	Reduce motor load. Inspect motor and wiring for short circuits. Check motor parameters.
sobrevoltajetage/Undervoltagy falla	Vol de entradatage outside range; regenerative braking issue	Compruebe el volumen de la fuente de alimentación de entradatage. Consider adding a braking resistor if applicable.

9. Garantía y soporte

Jectse products are manufactured to high-quality standards. For warranty information, please refer to the warranty card included with your product or contact your local distributor.

Atención al cliente:

If you encounter any issues or have questions not covered in this manual, please contact Jectse customer support or your authorized dealer. When contacting support, please have your product model (AT904-7.5KW) and purchase details ready.