У меня на коммутационной плате станка тоже есть вход PWM и это для меня загадочно
4.1.15 Pulse Width Modulation (PWM)
The Pulse Width Modulation (PWM) controller can be used for driving digital motors and smart lights. The controller
consists of PWM timers, the PWM operator and a dedicated capture sub-module. Each timer provides timing in
synchronous or independent form, and each PWM operator generates a waveform for one PWM channel. The
dedicated capture sub-module can accurately capture events with external timing.