2012/12/28 Peter C. Wallace <p...@mesanet.com>: > > M mode should work as long as you dont have a lot of static torque on the > motor (you need to wire bldc.init to machine on so it goes through a homing > cycle every machine on) > > You can try init values up to the point that the 7I39 current limits (red > LED) in case .1 is not enough > > Also make sure the offset value is 0 for M mode
What is M mode? It is not mentioned in man pages. And since that is capital letter, it should be related to some output signals. There is no init pin for M mode. Actually it seems that I see all the pins as for n mode: A-value B-value C-value value frequency rotor-angle phase-angle rev out out-abs out-dir 2012/12/29 andy pugh <bodge...@gmail.com>: > On 29 December 2012 18:02, Gene Heskett <ghesk...@wdtv.com> wrote: > >> Obviously something deeper than the timing of the hall patterns is wrong >> there. > > Indeed. Considering that a trapezoidally-commmutated motor is up to 30 > degrees out on timing at any one time, it can't matter that much, and > small errors in where the bldc component thinks that the motor zero is > should not have this sort of effect. > > I would be taking the PID out of the loop and seeing of the motor can > be persuaded to zero and run both directions with direct current > commands from HAL (maybe via a slider control to allow fast direction > changes. I have always found myself unable to type "setp > bldc.0.current 0" quite as fast I would like. I _think_ there is a little mistake - there is no bldc.0.current pin mentioned in documentation. I guess that You mean bldc.0.value pin here. Is that correct? I have 7i39 drives, which control voltage in motor windings. Ok, I will create small pyvcp with horizontal scale widget to control bldc.1.value, but what is the purpose? What am I going to test with that? If motor is homed and then controlled in different modes - q, qh, qhi etc? -- 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
