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
