You don't need an Oscilloscope to determine if your power supply is faulty, also you can check to continuity of all your wires using a simple multimeter. Keep it simple. Again what kind of Encoder are you using? Rob http://www.whatisacnc.com
> From: parallel.kinemat...@gmail.com > Date: Tue, 17 Apr 2012 19:10:26 +0300 > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors > > 17 квітня 2012 р. 16:50 Peter C. Wallace <p...@mesanet.com> написав: > > > Flat cable problems? The fact that the encoder inputs on the 7I39 do not > > work for you means something is wrong either on the 7I39s or the > > interconnections to the 7I43 > > > > The cable is probably OK. I bought 2 of them and no one works. And the > cable uses 2 completely pairs of wires for encoder 0 and 1. Very unlikely > that all these wires damaged. And some kind of signal was going to 7i43, so > they're can't be broken. The same with 2 7i39s, none of 2 do not work. > Something might be wrong with the power supply from 7i48 to 7i39, but the > power LED is on, and when I connect 7i48 to the same 7i43 with the same > cable - all OK. > Feels like I'm stuck completely, at least till my oscilloscope arrives > (maybe 2 weeks). Also feels like both 7i39 might be damaged - in the worst > case. > > > 17 квітня 2012 р. 16:28 rob c <crob...@live.ca> написав: > > > So the 7i39 is a brush less DC motor, if your trying to see if the motor > > it self is functional just hook it up to a DC power supply, 12V would do > > just fine, if it rotates regardless of polarity the motor is good and you > > need to move onto the electronics. > > > > BLDC motor won't rotate when connected to DC, unlykely to brushed DC motor. > But it jerks, that's enough to see it's OK. > In my case it's HIWIN linear DC motor, it just moves to a certain point > when connected to DC. > > What are you hooking the encoder to? What kind of encoder is it? > > > It's linear incremental quadrature encoder, connected to MESA 7i39 card (dual > 3 phase bridge driver for brushless 3 phase motors). > > Andrew > ------------------------------------------------------------------------------ > Better than sec? Nothing is better than sec when it comes to > monitoring Big Data applications. Try Boundary one-second > resolution app monitoring today. Free. > http://p.sf.net/sfu/Boundary-dev2dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
