Andrew - I have 3 D525MWs, two with Mesa 5i25 cards. One's been in operation for almost 2 years, the other is a new install that I'm completing.
Not being an expert in this area, but I did purchase a small switching supply for field power, (12v in my case) and I have another 5v one for analogue spindle control. When disconnected from your machine, what voltages do you see on the pc power supply bus? I wonder if the PC power supply is in trouble? Can you test the 5i25 boards with a known good PSU, without the 5i25 cards? It is a hassle, but switching boards is a fairly quick operation, especially if only for testing purposes. JohnS. On Thu, Oct 2, 2014 at 7:41 AM, Andrew <pkm...@gmail.com> wrote: > Hello, > > I've been retrofitting an old lathe with LInuxCNC. An old 9-step > electromagnetic gearbox was replaced with Toshiba VFS-11, old asyncronous > servo motors got replaced with a couple of newer servos in position mode. > Thus I use 5i25+7i76 on D525MW. First I successfully set up the VFD for > manual 3 step gearbox, then I connected Z axis servo drive and it was > jogging around pretty well. > > The next day I powered up the PC and Z servo drive (but not VFD), the PC > started booting. I remember the boot log appearing and then suddenly the > screen gets black. Since then no picture from that PC, even no bios logo. I > checked the display, the PSU etc with no success. > It looks like the D525MW is dead. Pretty frustrating. > > Here's the first question: could it burn because of some electromagnetic > issues? I used 12V from PC for 7i76 field power (is it wrong?). The > (chinese) servo drive was connected to STEP/DIR in differential mode. The > servo drive is supplied directly from 220V, but it has opto-isolated enable > input, I connected it to GND and one of the field outputs. > > Later I took another D525MW which had been used with 7i43 + 7i48. But > somehow this D525MW doesn't see the 5i25 board. I get "... hm2_pci.ko: No > such device" error. lspci doesn't list 5i25. But the 5i25 lists on another > PC and the config starts OK. > > The second question: what can be wrong with this D525MW? > > Thanks! > > -- > Andrew > > ------------------------------------------------------------------------------ > Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer > Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports > Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper > Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer > > http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
