Hi Pella These are nice drives. They look like the same manufacturer as the KL-11078 which list for about $200 each here in the states. Since they have their own mains feed there is no question about the ability of the system to put full power into the motors. Running these large motors with their windings paralleled will give you much better performance. This is about as good as a 2/4 phase stepper driven system can get.
I agree that the active breakout board is good and would use one with a charge pump that can be made a part of an external estop circuit. You will want the ability to stop these motors and the slides they are connected to when things go bad. When I was a child there was an expression "playing in the deep end of the swimming pool." These motors and drives qualify you as working to develop a machine tool for industrial use -- the deep end of the pool. (Some of my friends around this list would argue that no stepper system is industrial, but this comes about as close as we get.) I see that motioncontrolproducts is recommending a step-down isolation transformer in the mains ahead of these drives. It would be good and you can probably find a surplus one nearby. I would not be afraid to set the system up without during testing but watch for interference from other systems in the neighborhood. Rayh On Fri, 2007-12-14 at 13:27 +0100, Pella wrote: > Thank you very much for all informations. I'm from Italy and buy these > kit in England or in USA is a bit the same thing for me. > > Do you think that the kit 2 with integrated power supply drivers is > better? And maybe with an extra active breakout board? > http://www.motioncontrolproducts.co.uk/product_info.php?cPath=5&products_id=7&osCsid=f2f7789e24151d24d72b40ae1b5e7df7 > > Best regards, > Pella > > Ray Henry ha scritto: > > Hi Svenne > > > > Oh. I wasn't thinking of defining the quality of the product by the > > difficulty getting around the site. That comment was just waiting and > > waiting at my end of the dialup drip feed. > > > > The motors look great at 1800+ ounce inch. This system is tough enough > > for some pretty good sized machines by benchtop/Bridgeport standards. > > The drives seem good for the money. > > > > One issue is location. If this is for delivery in the EU I'd say it's > > probably as close as you get after you add VAT and shipping to something > > from further away. > > > > An equivalent setup in the USA could look something like this. > > > > 3 - KL34H2160-62-8A motors $537.00 > > 3 - KL-8056 drives $276.00 > > 1 - KL- 7212 power supply $149.00 > > 1 - PMDX-122 active breakout $81.00 > > > > Total $1043.00 > > > > I'm not even going to guess at the exchange rate but will leave that to > > the interested reader. The kit listed a bit over 500 pounds for cost so > > they look pretty close. > > > > Now it would be possible to save a bit on the drives and still meet the > > requirements of these motors. The power supply is way overkill but > > ready to go. (Both Gene and I would build the power supply but wouldn't > > require someone else to do that.) > > > > Notice that I added an active breakout board to get round the 5 volt > > logic and also to provide a charge pump to which I can add external > > wiring for the axis enables, real estop and such. > > > > Links for products in the order listed above. > > http://www.kelinginc.net/NEMA34Motor.html > > http://www.kelinginc.net/KLDriver.html > > http://www.kelinginc.net/SwitchingPowerSupply.html > > http://www.pmdx.com/ > > > > And thanks for the prod Svenne. > > HTH > > > > Rayh > > > > > > On Thu, 2007-12-13 at 22:07 +0100, Svenne Larsson wrote: > >> Don't judge a company or its products because of the web site. I know > >> a guy who's way richer than many others and his web site is just plain > >> ol' text... > >> So, to help the guy out here, what should he buy instead?.. > >> > >> > >> 2007/12/13, Gene Heskett <[EMAIL PROTECTED]>: > >> > >> I had a better description Ray, but it wasn't > >> printable. OTOH, could I do > >> better? Might take me a few days, but I think so. :) > >> > >> ------------------------------------------------------------------------- > >> SF.Net email is sponsored by: > >> Check out the new SourceForge.net Marketplace. > >> It's the best place to buy or sell services > >> for just about anything Open Source. > >> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > >> _______________________________________________ Emc-users mailing list > >> [email protected] > >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > ------------------------------------------------------------------------- > > SF.Net email is sponsored by: > > Check out the new SourceForge.net Marketplace. > > It's the best place to buy or sell services > > for just about anything Open Source. > > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services > for just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
