On Tuesday 22 December 2020 18:43:08 Ralph Stirling wrote: > Yes, the DCM terminal is the digital common for FWD and REV.
Good, that how I hooked it up but haven't powered it yet. I generally rig my stuff with a couple 40 amp SSR's to control motor power from the F2 key. But that cable is not hooked up yet. > That works fine on my system (that I'm working on as I write). > What did not work for me was the UPF and DRV outputs that > also use the DCM common. Those are supposed to be open > collector outputs that can be used for spindle-at-speed, spindle- > stopped, or running indications. Neither output works on my > system at all. I gave up and did a sets spindle-at-speed 1. Open collector would mean they need a pullup. Not all Mesa cards do that. But some also offer a low resolution 8 bit A/D on the first 4 digital inputs that might be read and scaled to do similar functions, I think on the 110 volter lashup I was doing the sets trick too. I wonder if there is a register that controls the type of signal that open collector sends? I've TBT, not sat down and read the booklet for such details. Me Bad dog... > -- Ralph Take care and stay well, Ralph. 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
