On Sat, 2010-07-31 at 12:55 -0400, Gene Heskett wrote: ... snip > 2. The 10% unbalance will likely not be a huge problem. The 3 winding, > common core choke would at least try to equalize that, but at the expense > of even greater ohmic losses so the net effect of trying to treat it is > probably a wash or even a net loss. > > Does this rotary inverter have any available adjustments that could serve > to raise the exciter field current in the output armature? It may even be > semi-fixed by some sort of move the wire to different taps method, read the > docs on that puppy carefully. And just as important, can it be raised > without magnetic saturation or overheating the rotating fields armature?
I don't know if this is of any value, but my rotary converter passes the single phase 240 through to the output and counts as phase 1 and 3 but are 180 degrees apart. Phase 2 is generated from the converter motor and capacitor and is 90 degrees from phase 1. Three phase should have 120 degrees between each phase, so my guess is that reactors, line conditioners or CNC drivers might not work properly or as expected from this odd phase timing. (Or, I may be completely wrong.) I'm with Jon on going to a VFD for running the spindle. My Bandit stepper drivers: http://www.wallacecompany.com/machine_shop/Shizuoka/00001-1a.jpg (Short URL) http://alturl.com/oewby http://www.wallacecompany.com/machine_shop/Shizuoka/Driver% 20Schematic1.jpg (Short URL) http://alturl.com/wgvxy run on 46 Volts DC and use the same four pin quadrature step inputs. There is no dynamic current limit feature on these amps, so may be easier to use if the Bridgeport uses the same voltage. Otherwise, I again agree with Jon to consider going to servos. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
