On 10 March 2011 01:34, Alan Kilian <kil...@bobodyne.com> wrote: > I've posted photos of the PCBs at: > https://picasaweb.google.com/AlanKilian/Misc#
At a guess, the spindle can plug in to either of the two D-sub sockets on the underside of that board? So it looks like the relay switches between two possible spindle motors? Furthemore, it appears that the motor has 4 switched terminals, which seems to indicate that it is not a 3-phase motor (you wouldn't switch an earth, even if the 4th wire is green, which it is) I suspect that the problem might be a dirty terminal in the relay, so that one phase of the motor is not being energised. Repeated clicks of the relay eventually make a contact. But that is just a guess. -- atp "Torque wrenches are for the obedience of fools and the guidance of wise men" ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
