... 2. Sinusoidal multi-level PWM output waveform, no output filter required, can be directly connected to standard induction motor, ... station, providing convenient controlling options.10. Support most of the industrial standard protocols (Profibus, Modbus, TCP/IP, etc.)11. ... Semiconductor self-commutated convertersGB 9969.1-1998 Manual of industrial product, and its universal principles.GB/T 10233 Basic ...