Here's one to consider http://www.a-m-c.com/download/datasheet/100a25.pdf With this you'd have to supply the DC power.
There are motor drives available for lower voltages like they use in battle bots, R/C speed controls, etc. You may be able to put together something like that and use higher voltage driver FET's or IGBT's. I guess it all depends on if you would prefer to spend money or tinker a bit. At work they have replaced some of the older DC drives and motors with AC, I'm not sure what they did with the old stuff but it was mostly 500VDC motors 200+ HP on rubber mills and extruders, smaller stuff on the conveyors. ----- Original Message ----- From: "Kirk Wallace" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Friday, November 02, 2007 10:29 AM Subject: Re: [Emc-users] Off Topic, DC Spindle Motor > On Wed, 2007-10-31 at 14:23 -0700, Kirk Wallace wrote: >> What is the best way to drive a 4hp, 90VDC, 40A spindle motor on a >> Hardinge CHNC? Some of the large DC motors I have seen, look like >> universal motors which would operate on AC or DC. Does anyone know if >> the CHNC spindle motor could work on AC? I'm thinking, a few dimmer >> switches in parallel and a stepper to turn the dials ;). I wonder if >> it >> would be cheaper to go with a 3-phase motor and VFD. Thanks. > > I think I found what I want here: > > http://www.zahninc.biz/ch4q1.html > > Now I just need to figure out how to make one for about a quarter of > the > price and with PWM input. > > -- > Kirk Wallace (California, USA > http://www.wallacecompany.com/machine_shop/ > Hardinge HNC lathe > Bridgeport mill conversion pending > Zubal lathe conversion pending) > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a > browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
