On Monday 28 October 2019 02:36:04 John Dammeyer wrote: > Nice video and your ESTOP and Machine ENABLE work the way I'd like to > have mine work. Except you didn’t show, and perhaps it can't, what > happens if LinuxCNC sees a fault that causes it to assert the ESTOP in > the same way as you pressing the button. > > Ie. A device creates a fault that requires the mushroom ESTOP button > to be pressed. In other words it opens a relay in series with the NC > switch (a 'soft' button) in the ESTOP. > > Now the question is how do you release that 'soft' button. > > I did discover that I had somehow modified my parallel port hal file. > The behaviour was as follows: 1. Fault from STMBL drive caused > PMDX-126 to generate ESTOP to PC via DB-25 PIN 10. PMDX-126 also shut > off ENABLE on PIN-1. 2. No matter what I did I could not reset that > ESTOP even when the FAULT was removed. 3. Only by unplugging the > parallel port cable and plugging it back in did the ESTOP clear. Or > resetting the PMDX-126. 4. MACH3 did not require unplugging the cable > so it wasn't a physical parallel port issue. 5. And the interesting > part, MESA 7i92H also cleared the ESTOP error once the FAULT was > removed. > > I think I had something weird in the hal file because when I restored > an earlier version everything worked again. Now the behaviour is > identical between MACH3 on WIN-XP and LinuxCNC with either parallel > port or MESA 7i92H. > > But unlike the system in the video I can't toggle the ESTOP controlled > power with the ESTOP switch in LinuxCNC like you can with yours. > > So if I understand your video, hit the mushroom switch and a relay > opens that disconnects High Voltage from all the drive systems. Undo > the mushroom and nothing happens until you click on the ESTOP button > top left on the display. So what's in the HAL file and how is it wired > to do this? > > If I can make my system do that, then, a few seconds later, when DC > and AC power have been restored, I can click on the ENABLE but like > you do and that ENABLE signal should then make the STMBL drive > properly come out of the missing High Voltage Error mode. Which it > currently doesn't. > > Thanks > John
John, I've a similar problem in powering up my 6040, that I suspect is a hal config problem. The vfd on the sheldon starts up normally for an f2 toggle, and displays the commanded frequency when driving the spindle. As I've a relay that also turns on the work light over the 6040 and that also starts the vfd supply AC power along with power to the steppers, it should Just Work, but on the 6040, even though the vfd works normally, the display shows an E with the top leg missing, and a flickering count like its counting errors or something. I think I need to check the sheldon to refresh how I did it with a couple 40 amp Crydom's vs how I'm doing it with a power relay on the 6040 where everything is 120 volt including the vfd. But other stuff keeps raising its hand. Like this mister pump. 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
