On Thu, 29 Oct 2020 at 10:23, andrew beck <andrewbeck0...@gmail.com> wrote:
> I think the 7i77 is a bit different though and just wondering how to best > control the VFD The 7i77 is +/- 10V so you would want to use an "abs" module to make sure that the 7i77 analogout doesn't see the negative spindle speed commands Then set up GPIO using the abs.is-negative / is-positive outputs to trigger the direction inputs. (possibly using reed relays for isolation) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
