On Monday 25 February 2019 01:48:26 jrmitchellj wrote: > On the Yaskawa VFD I am using, there are registers that can be changed > to alter the function of the run & fwd/rev inputs, so the names really > are silly. > There are a large number of those registers that change a bunch of > things. It took me several days for me to find the ones I needed to > tweek. > > Ray > > --J. Ray Mitchell Jr. > jrmitche...@gmail.com > Generally, the lack of docs on most of these things is a major PIMA.
It took a while to find the ones I needed to play with when I bought one of the then $130 clones from ebay to run a 3 phase motor on my cnc'd Sheldon 11x54. But I can, within reason, do rigid tapping on that Sheldon now. These vfd things can be made to do amazing things. At 300 revs I have to compensate for the overtravel at the bottom of a blind hole else the tap will hit the bottom of the hole due to overshoot at the g33.1 reversal, with an 8" chuck mounted, thats quite a flywheel, so its around 3.5 turns. Much less of a problem at slower speeds. And the drive belts are yelping. So I wrote some hal code to measure the overshoot while cutting air, display it in both distance traveled and in chuck turns, then I subtract about 95% of it for the depth of the tap travel in the resultant g33.1 code. Haven't broken a tap since. But trying to hold a tap in a common tool holder like for a boring bar, allows slippage. I need to design a tap holder that fits the qctp that grabs a tap by the square butt to stop any slippage, thats still being a problem on the Sheldon. The tap "hats" for the milling machine have solved that problem there by keying the hat into the r8 holder with a notch for the head of a 4mm screw in the side of the hat. So I need to design and make something that holds a tap mounted in a hat, right on the Sheldon's qctp. That will put torque into the qctp, and may make me put tapered gibs on its carriage. Doing that to TLM made a whole new machine out of it. So if we had the docs, we can likely make it work. The docs we have, fed to google translate, are a usable translation up to page 40, but the translator stops translating and the other 19 pages are worthless, so we have descriptions up to only d050's for registers, and theres 200 of them. We do have a list of defaults, but zero explanations for the last 140 registers. Thanks J. Ray. 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> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
