3-ph VFD Inverter 22KW/30HP

The SINEE EM730-022-3B is a high-reliability, general-purpose inverter (Variable Frequency Drive, VFD) designed for demanding industrial automation and machinery applications. This model is engineered to drive three-phase AC asynchronous motors and supports advanced control technologies such as vector V/F (VVF) and speed sensorless vector control (SVC), enabling both speed and torque output modes for versatile industrial use.

Key features include robust protection functions (short circuit, overcurrent, overvoltage, overload, overheating, and more), reliable operation at full load even at 50°C ambient temperature, and special functions for rewinding and unwinding. The EM730-022-3B supports high-frequency output up to 3000 Hz for driving high-speed motors and features a 100 kHz high-speed pulse input. It is equipped with a plug-in LED keyboard for easy parameter setting and monitoring, and supports Wi-Fi access and mobile app integration for remote debugging and monitoring.

Key Features:

• Motor Compatibility: Three-phase AC asynchronous motors and permanent magnet synchronous motors (non-standard)

• Power Range: 22 kW (EM730-022-3B)

• Input Voltage: Three-phase 340–460V AC, 50/60 Hz

• Control Modes: VVF (vector V/F), SVC (speed sensorless vector control)

• Output Modes: Speed and torque

• Protection: Short circuit, overcurrent, overvoltage, overload, overheating, phase loss, load loss, external protection, and more

• Communication: Modbus RTU, Wi-Fi, mobile app support

• Display: Pluggable LED keyboard with five-digit digital tube, four operation buttons, digital potentiometer, and status indicators

• Overload Capability: Heavy-duty rated output current: 45 A; light-duty rated output current: 49 A

• Cooling Method: Forced air (typical for this series)

• Special Functions: Rewinding, unwinding, high-frequency output (up to 3000 Hz), high-speed pulse input (100 kHz)

• Protection Class: IP20/IP21

• Applications: Woodworking, food, packaging, cable, fan, and hydropower machinery

Applications:
Ideal for variable speed control of industrial motors in manufacturing, material handling, HVAC, and process automation.