Hello! Nicklas, I paid some attention to all 3 encoder channels and rawcounts pin in Halscope and found a very nice repeating pattern, so my impression is that it is used for initial phase alignement - 1 electric revolution is divided in 6 similarly sized segments. I posted my findings in the forum threads, link in my first email.
Viesturs Nicklas SB Karlsson <n...@nksb.eu> (šajā datumā: ceturtd., 2024. g. 25. jūl. 12:20) rakstīja: > Forgot to mention. I am able to runt motor connecting the differential > outputs (A,B) to quadrature inputs though need to run special > initialization sequence to find magnets orientation. > > > Nicklas Karlsson > > > Den 2024-07-24 kl. 00:02, skrev Nicklas SB Karlsson: > > Have a Yaskawa permanent magnet motor and it have square pulses on all > three differential outputs instead of quadrature > > outputs on two differential outputs and index pulse on third > differential output. Not sure why but in the link they > > mention something about a phase shift to determine quadrant. It might be > some extra logic in hardware more or less in > > practice is needed to decode these signals but if the Mesa cards have > FPGA it might be possible. > > > > Nicklas Karlsson > > > > > > tis 2024-07-23 klockan 23:15 +0300 skrev Viesturs Lācis: > >> Hello! > >> > >> Next stop in my quest of Biesse retrofit after having 8i20 move those > >> Yaskawa motors is getting ,the Yaskawa encoders read directly by Mesa > >> boards. Seemed like a quick and easy task since those are 5V > >> incremental encoders but not really. > >> > >> I posted my problem here with some pictures and a link to youtube to > >> show how that encoder signal is seen in LinuxCNC: > >> > https://www.forum.linuxcnc.org/27-driver-boards/53321-yaskawa-incremental-encoder-and-mesa-7i48 > >> > >> Like I mentioned there, all I am missing is and index signal for bldc > >> module - it is provided by Yaskawa servodrive but I cannot see it > >> directly, so I would like to understand what are my current options > >> besides keeping the original drives in cabinet just as an encoder > >> signal converter. > >> > >> Viesturs > >> > >> > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
