On 8 May 2018 at 14:44, Peter C. Wallace <p...@mesanet.com> wrote: > At the frequencies involved, your entire "ground" is nothing but a big > tapped autotransformer. For our experience with the 8I20 we found the > simplest thing to do about EMI was to put a large ferrite bead over the 3 > motor U/V/W wires.
I will try that. I do have the ferrites on the 3 x 8i20 that run the other axes. I will have to order the ferrites in, though. The UK high-street components shop (Maplin) has gone bust. -- 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, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users