Hi Ron, I'm just wondering if you are using a "dump" circuit to drain off the back voltage when slowing the motors rapidly? I'll be using a 75VDC supply and after what you say about the 118VDC breakup point, would a dump be absolutely necessary?
John --- In [EMAIL PROTECTED], R Rogers <[EMAIL PROTECTED]> wrote: > I'm running 40in-lb servos on Gecko 320's. They are 100 volt (40 volts per K of rpm X 2500 rpm= 100 volts) 13.7 amps continuous. Running them at 70 volts DC to stay within the voltage rating of the drive. Sacrificing speed but not any torque. Still get rapids of 120 ipm on the Bridgeport. These actually exceed the Geckos capability but work reliably. So, anything equal to or less than these NEMA 42 motors will work with a Gecko 320. When I described these motors to Marriss at Geckodrive he replied that those are the same size motors that they test the 320 on. Except at full voltage. He also stated in another post recently that the 320 actually comes apart at 118 volts and 30 amps which is just amazing. Thats enough current in AC to power a small home. 29 in-lb or 2.9 Nm motors are very common and would be good for any X and Y axis for any mill. Most of the retrofitters use these for X and Y axis. > > Ron > > Joel <[EMAIL PROTECTED]> wrote: > > Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
