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
