On Thu, 2013-05-30 at 21:52 -0400, Gene Heskett wrote: > On Thursday 30 May 2013 21:36:43 andy pugh did opine: > > > On 30 May 2013 14:40, Gene Heskett <[email protected]> wrote: > > > I sent a decent part of yesterday scribbling logic diagrams w/o coming > > > up with anything that looks like it would work. The truth tables > > > seem to be mutually exclusive. > > > > LUT5 is just a lookup, not a truth table, so every possible > > combination of inputs has an output. > > > > You may need to create inputs such as spindle-was-running and > > spindle-was-stopped to get what you need. > > I did get something cobbled up that seemed to work nicely. Fwd worked, > stop worked, reverse worked, and stop worked, several times. So I thought > I'd test the lockout by trying to reverse before it had a chance to stop > from about 20 rpm, by clicking stop, and immediately clicking reverse. > Blew something in the controller itself, motor doesn't run, and an led that > flickered to indicate an scr trigger was occurring now remains dark at all > commanded speeds. It also has a control signal present tally led, and that > one goes on & off as expected. > > And that puppy is a very complex, not a lot of integrated circuits in it, > bit of 20 year old tech, and didn't come with drawings. > > I'll pull it back out tomorrow & do some cold checking. But I may be > forced to go get another controller off ebay. > > Where's that Murphy guy?, I have a box of 30-06 Ackley Improved shells with > his name on it. > 110 gr HP are recommended since he is thin skinned. ;-)
Dave > Cheers, Gene ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
