oh sorry . Sure you already did it . Sometimes appened that you can measure the cable resistence with the multimeter and everything seems ok but after that if you apply voltage to the wires the problems come . Did you use extra flexible cables for the motor supply ? Are the cables fitted inside a cable chain ? If yes are you sure that the cable fitting respect the manufacturer specifications ?
On Fri, Jul 5, 2013 at 6:34 PM, alex chiosso <achio...@gmail.com> wrote: > Hi Viesturs. > > Did you already check the motor windings resistence/impedence ? > Did the motor get any kind of torque ? > > > On Fri, Jul 5, 2013 at 6:25 PM, Viesturs Lācis > <viesturs.la...@gmail.com>wrote: > >> 2013/7/5 Jon Elson <el...@pico-systems.com> >> >> > Viesturs Lācis wrote: >> > > >> > > The drive is ok, motor is ok, cable is ok, but now they are not >> working >> > > together. Everything was fine few weeks ago. >> > > >> > Make sure, with a voltmeter, that the commutation signals from the >> > motor are working, and giving a valid logic swing as you rotate the >> > motors. Some Hall sensors need resistor pullup, and if you don't >> > have proper pullup, the signals may be marginal such that they >> > work SOME of the time. >> > >> >> I was trying in "n" mode with no feedback at all - it did not move either. >> >> Andy, I tried different motor on the same 7i39 channel and it moved >> correctly, so insufficient voltage on 7i39 outputs is not likely, but I >> will check tomorrow morning again. >> >> >> -- >> Viesturs >> >> If you can't fix it, you don't own it. >> http://www.ifixit.com/Manifesto >> >> ------------------------------------------------------------------------------ >> This SF.net email is sponsored by Windows: >> >> Build for Windows Store. >> >> http://p.sf.net/sfu/windows-dev2dev >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
