Three-phase inverter Uwe=3x400V AC, Iwe=11A, Uwy=3x400V AC, Iwy=8.5A, Pmax=4kW FA-3HX040

Three-phase inverter – precise control and efficiency

This three-phase inverter, with a supply voltage of 3x400V and an input current of 11A, is a reliable solution for controlling asynchronous motors. Designed for demanding industrial and commercial applications, it offers a maximum power of 4kW, providing efficient speed and torque regulation. Its compact dimensions (150 mm width, 182 mm height, and 220 mm depth) facilitate installation even in limited spaces.

Functionality and communication

The inverter stands out for its versatility thanks to the built-in RS485 communication interface supporting the Modbus RTU protocol. This enables integration with industrial automation systems, remote control, monitoring, and configuration of operating parameters. Although it does not support advanced protocols such as BACnet, PROFINET, or EtherNet/IP, the Modbus protocol provides a solid foundation for communication in most typical applications. The lack of support for safety protocols (PROFIsafe, DeviceNet Safety) should be considered when designing systems requiring a high level of reliability.

Construction and application

At the heart of the device is a powerful 32-bit DSP processor that ensures fast and precise execution of algorithms for controlling asynchronous motors. The inverter offers the possibility of operating in speed or torque control mode, allowing for optimal adaptation to the specifics of the application. Vector control (with or without sensorless feedback loop) and programmable V/F characteristics provide flexibility and precision in regulation. Thanks to the automatic slip compensation function and high starting torque (up to 180% at a frequency of 0.25Hz), the inverter performs perfectly in applications requiring dynamic start-up and load. The IP20 protection class indicates its intended use in dry environments protected from direct contact with water. The possibility of application in both industry and residential and commercial construction makes it a universal solution for a wide range of customers.