On Thursday 02 February 2017 10:02:59 Sebastian Kuzminsky wrote: > On 02/02/2017 03:27 AM, andy pugh wrote: > > I am using a typical eBay HuangYang VFD on the lathe, and it works > > nicely with the HAL module (even though it isn't _actually_ real > > modbus, or so I have heard) > > Some eBay adverts make a point of stressing that they are selling > > genuine HuangYang, not fake HuangYang. > > I've used Huanyang VFDs on machines at the local hackspace. If you go > this route, two notes of caution: > > 1. Make sure to use an AC reactor on the input.
How much reactance is needed? And is this for electrical noise reduction or ? I ask, because this "fake" VFD I am using is about to get a 20 amp rated Corcom "Brick Wall" filter in front of its 254 volt single phase AC input, to augment the ferrite clamp-on on its output leads in an attempt to corral some of its electrical noise. There will also be a pair of 40 amp SSR's in front of that controlled by LCNC. They will be turned on by motion.motion-enable. > 2. The LinuxCNC Huanyang driver only works with the older style of > Huanyang VFDs. It does not work with the newer GT-series models. I'm > working on a new driver for Huanyang GT VFDs, but it's not ready yet. Is it so special that a PWMgen, set for PDM mode and a SpinX1 can't run it? Whatever this thing I bought actually is, that works fine. Except for the electrical noise that is. This takes advantage of the PDM mode not being a discrete step, but inherently quite stepless. Response to the spindle override slider is both smooth and fast, so CCS speed changes should be smooth and fast. 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
