2012/12/28 andy pugh <bodge...@gmail.com>: > On 28 December 2012 10:04, Viesturs Lācis <viesturs.la...@gmail.com> wrote: > >> Here is a trace from halscope. I tried to check the consistency of >> hall signals. They certainly do not seem like 60 degree hall pattern. > > Those don't look quite right, agreed. > > But, if they commutate the motors adequately, why not just use them? > (ie, just stay in "h" mode all the time?)
Using them for initial commutation would be ok, but using them permanently does not seem like a good idea, because that signal is not differential and that is plasma table, so I expect some noise in the signals, when plasma torch will be on. Signal cables are shielded and shield is connected only on control box end to a separate ground wire, machine frame also is grounded. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
