My first guess is that the BoB can't source or sink enough current to energize the relay coil. But we have to know what exact relay, power supply, and BoB you have and exactly how they are all connected. Could you post a schematic?
On Thu, May 14, 2020 at 5:33 PM Dan Henderson <luvtof...@gmail.com> wrote: > > Hello everyone, I have a simple question for you. I’m testing the ability > to trip a simple 5v relay with an output pin from a 5 axis BOB and don’t > seem to be having any luck. I have motion-spindle-reverse mapped to the > output pin (04). Was expecting an M4 to go high on the mapped pin and > trigger the external relay. I have 5v+, 5v-, and pin 4 wired to the relay > input side. What have I done wrong here? > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
