On Thu, 29 Sep 2011, Chris Morley wrote: > Date: Thu, 29 Sep 2011 07:19:51 +0000 > From: Chris Morley <chrisinnana...@hotmail.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: EMC <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] 3-phase pwmgens for 7i39 > > > look at the BLDC component. > PID goes to BLDC goes to 3 phase pwm > > Not that I have done it :) > When you get this config going i would like to see the sample > HAL file for PNCconf reference > I might add to pay attention to PWM base frequency value > and BLDC dead time. > Both can do bad things to your 7i39 apparently. > I'm sure Peter or Andy will chime in and give you specifics > > Chris M
The 7I39 needs no dead time (its handled on the card) any PWM rate up to 50 KHz is OK with the 7I39 but 20-30 KHz is suggested since its too high to hear but not so high that switching losses become serious Peter Wallace Mesa Electronics ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
