On Monday 06 November 2017 15:38:19 andy pugh wrote: > On 6 November 2017 at 20:18, Gene Heskett <[email protected]> wrote: > > I just doubled it, might have helped but the huge windup is still > > there. > > Setting the maxerrorI should limit the windup, then you can set the > I-gain higher. Just keep doubling it. > > Note that it is a limit on the max error, not the output, so if you > want a 1V limit on the output correction with a gain of 0.5 then the > maxerrorI should be 2. > > If you end up with an Igain of 100 you would need to limit the errorI > to 0.01
This is very good to know Andy, but it begs the question of why the heck isn't this relationship noted in such plain language in the pid man page? On the clamp ring front, the superglue gave way while boring the first hole thru it for the mounting bolts. Then after remounting it on the lathe to fine tune the fits, I found the rings ID was about 2mm's too small, so by the time I got it to fit the spindles flange, and expanded the cut for clearing the edge of the bronze spindle bushing by the same amount,I found it would lock the system up tight. Inspection with a strong light disclosed a sand molding error in the spindle housings lower half casting that made a projection nearly 1/8" high, at the bottom of the lower half of the spindle bushing, using up all the clearance between my ring and it. Half an hours work with a 12" mill bastard restored enough clearance to make it fit, but it was then 20:00 locally and I hadn't fed either of us dinner. Thats done now, but I'll have to make the clamping draw bolt tomorrow. While its mounted to the backing plate since half the screw heads are now carved away for clearance to the edge of the bushing. So they are in there till they work loose as theres no longer a complete enough hex socket to let an Allen wrench be used to adequately tighten them. Its been a long enough day for a Monday already. Thanks Andy. 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
