On 02/02/2017 08:45 AM, Gene Heskett wrote: > 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 ?
We bought this one: http://www.ebay.com/itm/MTE-RL-04501-AC-Line-Load-Reactor-3-Open-Type-3-Impedance-Transformer-/302102247034?hash=item4656b2767a:g:UsIAAOSwh2xX-zu7 We're using 0.3 or 0.5 mH coils I think. It's not for noise reduction, it's to limit the inrush current and keep the upstream breaker from breaking, and the contactor from fusing its contacts. >> 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. I've never tried running our Huanyang VFDs via analog control or PWM, we always use Modbus. -- Sebastian Kuzminsky ------------------------------------------------------------------------------ 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
