> -----Original Message----- > From: David Berndt [mailto:[email protected]] > Sent: November-12-19 9:30 PM > To: [email protected]; Marshland Engineering > Subject: Re: [Emc-users] Ebay Servo Drive > > I'm confused by these sorts of drives. I guess for a 3060 or something... > > But why don't people just spend the time and read up on older mitsubishi, > sigma, automation direct (probably delta made?), delta, drives or their > alibaba knockoffs then get those, there are tons around on ebay, > aliexpress, etc. They're not significantly more expensive, sometimes > cheaper even. They take straight mains voltage and they have more > professional level features (step and direction, +/-10v, torque and speed > modes, encoder count outputting, electronic gearing, often some sort of > rs232 programming, about a billion settings to play with, a ton of IO > usually 7 or 8 digital ins and another 7 or 8 digital outs, safety > features, seperation of control circuitry from high power circuitry so you > can count steps even when the high power is off for example if the machine > is in e-stop. You get a lot more bang for your buck imo, and you save > having get some sort of fairly large DC power supply. >
That's why I'm slowly switching over to http://en.bergerda.com/ Support has been good. Quality is nice. Price is decent. I'm replacing a 2HP single phase spindle motor with an equivalent power 0-3000RPM AC Servo Motor. Cheaper than a new VFD and 3 Phase 2HP Motor. And smaller. When I finish the conversion I'll report on how well it went. I've also got a 400W AC Servo that replaces a much larger Automation Technologies Inc DC brushed servo with first US Digital and now CUI encoder. Running with HP_UHU off a 105VDC power supply. All in all a much smaller package running directly off 220VAC. And less money than the combination of DC Servo, Encoder and power supply. John Dammeyer > > > > On Tue, 12 Nov 2019 15:28:50 -0500, Marshland Engineering > <[email protected]> wrote: > > > Just ordered one of these to try. Looks very promising. > > > > https://www.ebay.com/itm/322460600468 > > > > Downloaded the software and that looks quite professional. > > > > Anyone tried them before ? 80 volt 20 amps > > > > or more power (Tim the tool man !!! ) > > > > 150 volt 20 amps > > > > https://www.ebay.com/itm/322460615556 > > > > and the Holy Grail !!! > > > > https://www.ebay.com/itm/322393653446 > > > > Means that I can run from the parallel port !!! > > > > Cheers Wallace. > > > > > > > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
