> On 8. Apr 2017, at 08:31, Chris Radek <ch...@timeguy.com> wrote: > > On Sat, Apr 08, 2017 at 12:05:59AM -0500, hubert wrote: >> I have a Servo that has an undocumented feedback encoder. I am >> interested in trying to decipher it. Is it feasible to run the servo >> without feedback connected, and put a digital storage scope on its >> outputs to capture the signal? It is an incremental encoder that has >> quadrature and index some how encoded into a serial data stream s, /s. > > If you have a matched amp with velocity input or similar, sure! If > you have nothing, it seems really hard to get it turning a steady > speed to test. So chuck up the motor shaft in a drill press > instead? I've scoped tachometers that way.
decoding the signal is easy. the hard part is getting them to talk, as you have to send a position request. I only ever came across one encoder type that sends a position without a request. if you have a matching drive, you can capture the request, and replay it. > > > > ------------------------------------------------------------------------------ > 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 ------------------------------------------------------------------------------ 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
