OK thanks Gene. I highly doubt it was a Mesa problem as I'm still just learning.. And so far Mesa cards have been awesome. But I'll keep the group posted if it happens again
Regards Andrew On Thu, Feb 6, 2020, 7:48 PM Gene Heskett <[email protected]> wrote: > On Wednesday 05 February 2020 23:37:25 andrew beck wrote: > > > Hi guys I have a little problem... > > > > I have a mesa 5i25 7i76 combo which was working 4 months ago. I blew > > up a servo drive and only just got back to the project a couple of > > months ago. the original config stopped working when I started it up > > again and came up with a error message. "Pin > > 'hm2_5i25.0.7i76.0.0.input-00 does not exist" It is possible that I > > have damaged the mesa card when i blew up the servo drive. > > > > My mesa card is not registering with the computer I think. when I use > > Pnconfig and try to connect a digital input up to the card it comes up > > with "Pin 'hm2_5i25.0.7i76.0.0.input-00 does not exist, but when I > > connect it up the with no inputs connected into the 7i76 it goes works > > fine. this leads me to believe that there may be some problems. The > > 7i76 leds both come on fine. I can't see any leds on the 5i25. also > > I have been trying for a couple of weeks to get the step and direction > > signals moving the servos and haven't had any luck which is why I > > eventually started wondering if the mesa card was working properly. > > > > Anyone have some ideas? > > > Perhaps. I've had the same symptoms a 3 times on 2 machines. > > Since you are already disconnected at the outputs on the 7i76, I would > hook it back up, one wire at a time, to the original config. When the > lcnc startup error listed above returns, then that is the i/o wireing > path I would trace, looking for shorts. Shorts that take down the field > power, which kills sseriel so keep an eye on that as you hook the rest > of it back up. I note in both cases where I've had trouble, the basic > problem is that whatever is killing the sseriel, which is demo'd by the > above error message, that recovery is not possible unless a full power > down, count to at least 5 before powering it up again is done. It seems > as if it has to have a FULL, all supplies decayed to zero volts reset > before sseriel works again. I'm using 12 volts for field power, and that > supply goes into a continuous 1 second blink when this condition exists, > like its trying to restart into an overload, you will see that in one of > the leds on the 7i76 too. > > That many restarts is hell on spinning rust hard drives, but If you've > switched to SSD for a system drive, its not as big a problem for the > SSD. I've plans to switch all of my machines to SSD's as they make > quite a difference in speed, both in rebooting and in loading up > linuxcnc. > > And be sure to tell the list what you find. In one of my machines I had > neglected to put a free wheeling diode across a relay coil that was > switching power to the led lights, the spindle motor cooling pump and > machine stepper motor power, adding that diode across the relay coil > fixed it. The jury is still out on the 2 times the other machine has > done this. > > > regards > > > > Andrew > > 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 > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
