> On Mar 26, 2016, at 7:13 AM, Gene Heskett <ghesk...@wdtv.com> wrote: > > I am not fam with that driver Jeshua, but most of these drivers have 3 > inputs, step, dir, and enable. I suspect the enable might not be wired > correctly. In my setups, using the 2m542 driver, IIRC leaving the > enables unconnected actually enables them. Or you can use a pin on the > BoB to drive all 3 of them if the BoB's output has enough current > sinking ability to drive all the axis's drivers, and you actually have a > spare pin on the BoB. > > I just checked the .hal file for my G0704, and the only place I am > sending the motion modules axis#-enable signals is to the pid's & > stepgen's in the 5i25, so I either do not have the driver enables wired > to the BoB, or they are wired permanently in the on state. Probably the > latter, and I can get a ladder (that box is on a high shelf to miss most > of the swarf but the lid is off, when I find my round tuit, I'll modify > a drill pattern and put an exhaust fan on the lid) and check because I > know all the + terminals are hard wired to a 5 volt bus, but do not, > nearly 2 years later, remember if I just grounded the - terminals, or > they are tied someplace active. > > But that is something to check, the 6550 may have to be wired "on" at its > enable input. I do not have manual wheels on any axis, so no reason to > disable the drivers to make them easier to turn exists. > > This may not be the problem, but its also something that might trip up a > builder. I hope it helps.
Hi Gene, Thanks for all the suggestions everyone. Hmm, I think the one thing I do have wired up correctly is the enabled. Because as it is the motor is off until I press the “Test Axis” button in the stepper wizard, then immediately holds its position under power (and makes a high pitch whine). If I unplug the enable, or close the Test Axis dialog, the motor goes dead. Why we are not getting the 2nd LED lit I have no idea. I still am not sure why the driver has Pulse + / - and Dir + / -. I am accustomed to only a single pulse and dir. If I understand correctly, I just tried connecting the signals from the controller to the - pins and the +5v from the enable to the plus pins, but no luck. Since I have wired this up based this a photograph (from someone that has it running with LinuxCNC in a video), can anyone point me to a diagram for a similar setup? Guess we will try contacting the author, see if he responds. In the picture shown, it looks like he is only using the Dir + and Pulse +, I don’t see any leads to the - pins. http://www.technoshamanarchist.net/wp-content/uploads/electronics_2.jpg Best, Jeshua Lacock Founder/Engineer <3DTOPO.com> GlassPrinted.com ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
