3-Phase VFD Inverter

The SINEE EM730-315-3 is a reliable general-purpose variable frequency drive designed to control three-phase AC motors up to 315 kW. It operates with a three-phase 340–460V AC input voltage and uses advanced vector control technologies, including VVF (vector V/F) and SVC (sensorless vector control), to provide precise speed and torque regulation. The inverter features a detachable LED keypad, Modbus RTU communication, and multiple protection functions ensuring stable and safe operation in harsh industrial environments.

Key Features

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

• Power Rating: 315 kW

• Input Voltage: Three-phase 340–460V AC

• Control Modes: V/F (VVF), SVC

• Output Modes: Speed and torque control

• Special Functions: High-frequency output up to 3000Hz for high-speed motor applications, rewinding/unwinding

• Protection: Overcurrent, short circuit, overheating, overload, phase loss, load loss, external fault protection

• User Interface: Detachable LED keypad with digital display and function keys

• Communication: Modbus RTU support

• Cooling: Forced air cooling

• EMC: Built-in C3 filter for electromagnetic compatibility

• Protection Class: IP20

• Ambient Temperature: Operates reliably up to 50°C

• Applications: Industrial rewinding/unwinding, cranes, HVAC systems, cable manufacturing, production machinery, and general industrial automation