On 27 October 2013 03:48, Jon Elson <[email protected]> wrote: > Possibly. To use my (Pico Systems) gear, you would need our encoder > converter > board, as the commutation signals from the encoder are not industry > standard. > They provide 4 signals that give a Gray code approximation of absolute rotor > position, for their own commutations scheme. Our Fanuc converter converts > this to an approximation of the standard Hall signals until it has seen > the index > pulse, then it uses the quadrature plus index to provide the most > accurate Hall > signals.)
It is also possible to do this in software using the "bldc" HAL component, though it would use up a lot of IO. You would need 4 input pins per joint for the Gray-code signals, and then 3 output pins to the drives for the emulated Hall sensor signals. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
