Hello Peter. The cables look fine but I'm gonna try with new cables tomorrow and see if it works all day long without trouble. The malfunction is erratic and happens a few times a day, but it's annoying as hell.
Thank you. 2018-04-17 17:37 GMT-03:00 Peter C. Wallace <[email protected]>: > On Tue, 17 Apr 2018, Leonardo Marsaglia wrote: > > Date: Tue, 17 Apr 2018 16:51:51 -0300 >> From: Leonardo Marsaglia <[email protected]> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <[email protected]> >> To: "Enhanced Machine Controller (EMC)" <[email protected]> >> Subject: [Emc-users] Possible MESA 5i20 problem >> >> >> Hello to all! >> >> I have a camshaft grinder wich is working with a MESA 5i20 for 8 years >> more >> or less. Never had a problem until recently. >> >> A couple of days ago I had a major failure on the PC (not the power >> supply) >> so I replaced the complete unit to put the machine to work and then repair >> the other one. >> >> I also had a failure on one of the stepper drivers (probably the output >> stage since it's oscillating when I try to move it). >> >> It's more than likely that all these fails ocurring at the same time have >> the same source wich I believe could be a short circuit due to coolant >> vapour inside the cabinet. >> >> Anyway, I installed the new PC and new driver and everything seems to work >> fine except that from time to time I have two outputs activated when I >> activate only one. More precisely, when I try to jog the spindle (I don't >> have a VFD is a two speed 3 phase induction motor with contactors) the >> output jogs the spindle as usual but also, the electrovalve that moves the >> hydraulic pivot the machine is activated/deactivated. >> >> Looking into hal, there's no activation in the LinuxCNC virtual pins, but >> I >> do get an activation from the 5i20 output port. I changed the physical >> output ports of the 5i20 to try the other connector and I still have the >> same erratic behaviour. >> >> I re installed LinuxCNC with the last wheezy .iso and the problem showed a >> few times. Now it's working ok, but from time to time the problem appears. >> >> I suspect this is an FPGA related problem may be? Or with the resistors at >> the output? >> > > If you have the same issue on the same pins of multiple I/O connectors of > the 5I20, it could be a bus problem but this is more likely to cause other > issues. Did you change daughtercards/cables when you changed 5I20 > connectors? because a problem that stays with the cable/daughtercard is > more like a problem with those components. > > > >> Thank you as always! >> >> Leonardo Marsaglia >> ------------------------------------------------------------ >> ------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > Peter Wallace > Mesa Electronics > > (\__/) > (='.'=) This is Bunny. Copy and paste bunny into your > (")_(") signature to help him gain world domination. > > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
