2012/11/29 Viesturs Lācis <[email protected]>: > 2012/11/29 andy pugh <[email protected]>: >> On 29 November 2012 18:45, Viesturs Lācis <[email protected]> wrote: >> >>> Could You, please, help me explaining, what does it mean: >>> if bldc.value = 0.1 >>> then motor spins clockwise, encoder.velocity = ~10 >> ... >>> if bldc.value = -0.1 >>> then motor spins counterclockwise, encoder velocity = ~5 >> ... >>> Does it still mean that bldc.pattern is not correct? >> >> Possibly. Try the other patterns. If you have the correct pattern then >> it will have a "partner" which works equally well but in the other >> direction. > > Ok, I have 4 and 25. Is it important to choose the one so that encoder > velocity is positive, when bldc value is positive or will I change > that with minus sign in INI file for INPUT_SCALE value? > >> It might simply be that the Hall sensors are not perfectly aligned. > > Is it something that I can and/or should try to fix?
The thing is that currently the motor is starts zumming and vibrating, if I increase bldc value (I tried setting it to 0.2 and 0.3). The amount of vibration seems equal in both directions and also for both patterns. These are the only 2 patterns, where motor has approximately equal velocity in both directions, when I change the sign in front of bldc value number. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: VERIFY Test and improve your parallel project with help from experts and peers. http://goparallel.sourceforge.net _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
