Sorry about the last reply written before seeing the posted manual. As Gene points out it is "14" or "4". But also, my guess is you need to supply 5 volts to the board via either a power supply or a USB cable.
One why to debug this is to but a voltmeter on the relay coil and toggle pin 14. If one end of the coil is at ground, look at the other end. On Thu, May 14, 2020 at 8:49 PM Chris Albertson <albertson.ch...@gmail.com> wrote: > > 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 -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
