The VFD I'm using uses three wire control - FWD, REV, RUN/STOP, where the MESA card is designed around FWD/REV and RUN/STOP two wire control, however the VFD can set inputs for active high or low operation so you can set FWD for active high, REV for active low and tie the two together to a single FWD/REV control signal. It's not entirely clear in the manual so it took a little bit to sort out but it works well. On the MESA card the enable output for the spindle is also the enable for the analog speed output so you can't use it as anything but an enable.
------Original Mail------ From: "Jeremy Jones" <sp01jjo...@gmail.com> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Sun, 7 Dec 2014 09:16:53 -0500 Subject: Re: [Emc-users] 7i76 spindle output loadrt scale count=1 addf scale.0 servo-thread setp scale.0.gain 0.002 net spindle-speed-scale motion.spindle-speed-out => scale.0.in net spindle-speed-DAC scale.0.out => <your DAC pin name> That's whats in the integrator manual. I started out with the abs I copied from a similar machine but then tried this and it worked.. I will finish the abs and report back. Should I look into adding my info, once complete, to wiki for others to use? My combination of setup and VFD are pretty common. Alex - I think it might. I currently have it hooked up CW on one pin and CCW on another. Let me see if I can switch that to a single pin. I am using the 0-10v pot on the VFD but it uses separate pins for the direction...which confuses me why it works one way perfectly and the other way is way off. Like you said I guess it's the negative. Once I get this figured out I want to tackle the MODBUS setup for mine too. Just figured this would be easier for now. On Sun, Dec 7, 2014 at 5:22 AM, alex chiosso <achio...@gmail.com> wrote: > Hi Jeremy. > Does your VFD have a CW-CCW physical input to reverse the motor rotation ? > If yes you should wire it and activate it related to the sign of > motion.spindle-speed-out . > Or if your VFD has a differential (+/-10Vdc) input you should use the > motion.spindle-speed-out (scaled as needed) to activate the analog speed > reference . > > Alex > > On Sun, Dec 7, 2014 at 11:02 AM, andy pugh <bodge...@gmail.com> wrote: > > > On 7 December 2014 at 02:51, Jeremy Jones <sp01jjo...@gmail.com> wrote: > > > I had ABS going and then I switched it over to scale like in the > > integrator > > > manual. I can try and switch it back. > > > > I admit that I have never read the integrator manual, so I don't know > > what it says. However I suspect that it hasn't caught up with the fact > > that there are now direct ABS outputs for spindle speed from motion: > > http://www.linuxcnc.org/docs/html/man/man9/motion.9.html > > > > -- > > atp > > If you can't fix it, you don't own it. > > http://www.ifixit.com/Manifesto > > > > > > > ------------------------------------------------------------------------------ > > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > > with Interactivity, Sharing, Native Excel Exports, App Integration & more > > Get technology previously reserved for billion-dollar corporations, FREE > > > > > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
