I am a beginner trying to hook up a 3-axis spindle machine with my delta tau Pmac Pack. Here is the suitation.
The spindle has x,y,z axis and each axis has limited switches located on both ends. I connected the spindle's limit switches +x and -x to the Pmac pack's Flag input 1 PosLim and NegLim. I expected that the spindle will stop moving if I press the either one of the overlimit switches. However, nothing happened when I pressed. What should I do?
P.S. When the limited switches are not pressed, both PosLim and NegLim are 3.9V. If limited switch +x is pressed, voltage of PosLim changes from 3.9V to 0.15V. Only PosLim and NegLim are connected, other pins of Flag input are not connected.