The index signal from that Hall sensor needs to be connected into the index input on the interface card and provide one pulse per revolution of the spindle. To generate that pulse you need a small magnet on the spindle and the sensor needs to be mounted quite close to it (probably a mm or so) to pick it up. Unless you provide the index pulse you will not be able to either indicate spindle rpm or do threading. So what is your sensor picking up?
I do not have nice english, I can not tell you.Sorry
My sensor is hall affect sensor, on per revolution sensor led is on .And I controlled sensor that is true on osilicop
nevertheless, mach3 do not see pulses.
I tried low speed like 60rpm on that time index regularly is true working(screen index green or brown)
And mach3 software do not press spindle speed on screen