On Sat, 21 Apr 2012, Andrew wrote:
Date: Sat, 21 Apr 2012 21:30:11 +0300
From: Andrew <parallel.kinemat...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors
21 ???????????? 2012 ??. 21:00 Andrew <parallel.kinemat...@gmail.com>
??????????????:
if you have the parameters right, you may still have the phase rotatiom
backwards, this can be fixed by swapping 2 motor leads.
Thanks Peter, that is possible. Can I change something in hal to avoid
swapping wires?
That's not the case, unfortunately.
The wrong commutation just overheated the motor. I was lucky to notice that.
Yes, until you get the commutation and PID right you are using your BLDC like
a step motor (so dont leave it on if it does not work)
You could also run from a low motor voltage until you get things working (say
5V)
to verify that your parameters are close you can apply a small fixed drive so
you can feel the once per cycle magnetic detent and the verify that
bldc.N.phase-angle changes by 1 for each detent
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For Developers, A Lot Can Happen In A Second.
Boundary is the first to Know...and Tell You.
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