If it is duty cycle and direction - they are similar to the AMC drives I have used on my little emco. The pwm is pulse width modulation. So - think of a signal that is constant frequency - but varying on time..
https://www.youtube.com/watch?v=YmPziPfaByw In my setup - I am running pwm+dir from a mesa card to control the servo drives. As far as linuxcnc know - it acts the same as using +/-10v. https://www.youtube.com/watch?v=GrzJKXBsXvM sam On Wed, Jun 24, 2020 at 1:50 PM andrew beck <[email protected]> wrote: > All it says is they use pwm for controlling via x72 x80 x82 etc. > > I forgot to what most buy as you say it doesn't matter really. > > I am more interested in how pwm works. > > As far as I know there is a voltage and duty cycle and a dir. But I > haven't used it before. > > Regards > > Andrew > > On Thu, Jun 25, 2020, 12:51 AM andy pugh <[email protected]> wrote: > > > On Wed, 24 Jun 2020 at 13:45, andy pugh <[email protected]> wrote: > > > > > > On Wed, 24 Jun 2020 at 12:30, andrew beck <[email protected]> > > wrote: > > > > > > > as some of you will know I am trying to connect to a heidenhain > > inverter > > > > unit on my cnc mill > > > > > > Which model? > > > > (Not that it matters, there seems to be no useful info in that document) > > > > -- > > 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 > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
