On Saturday 18 January 2020 13:39:23 Gene Heskett wrote: > Greetings all; > > If then. While shaving the side of the BXA's foot, swarf built up on > the top of the y axis home switch, and when I went to brush it off, > some of it went below the switch and shorted the 12 volts to ground. > Lit the swarf strands up like a light bulb, which I don't quite > understand since the teeny little switcher supplying that 12 vols. > Short circuit protected, it shuts down at (Correction) 1.15 amps. Its a 15 watt supply. < The switch still > has the 12 volts on it but I've removed it from its bolt down. I have > not used the halmeter to see if its traceable, but without sserial, I > doubt I can read it. > After a full powerdown, its all working again. So I went downtown, finally winding up at CVS, and had to buy a 7 dollar tube of shoe goo, and the back of the switch is now buried in it and the home switch registers on a halmeter. But it will take till tomorrow to cure before it will be ready to remount and put to use.
> All the power leds on the power supplies are at normal brightness and > so are the leds on both the 7i76 and the SainSmart bob on the 5i25's > p2. > > The GO704 and its interface is wired like Peter recommends, but > apparently thats not good enough, without doing a full powerdown on > the computer and the separately powered interface box. So I think I > am going to have to concoct a method involving the actual unused > parport to act as a master switch for the whole thing so I can do a > powerdown reset on this interface combo by command from the computer. > > I can't believe I've blown the 7i76D, the available voltages just > aren't there, but Peter also cannot duplicate this fail. But I have > now encountered it on 2 separate builds. > > Has anyone else actually invented this particular wheel? Checking inventory, I'll have to order up some more 40 amp SSR's. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
