I have noticed that when any of my ,X,Y,Z, limts are triggered MACH responds with a ''PLCM limit reached '' under the reset button . the ''M2 -- LIMIT'' led , flashes briefly in the diagnostic tab under the ''Z'' column and my motors also loose their hold on the axes. when the ''A'' is triggered i get the same result but M4--LIMIT'' flashes in the same column .i 'm at a loss at this stage because i thought that the motors would hold their position and that the leds would stay on. i was about to wire in the overide for the limits and the control for the VFD but i will hold off until i sort this out. if any one can shed some light on this it would be greaty appreciated. i have checked the wiring and the ports and pins settings and everything seems in order. this has me stumped.