Hey everyone. Thanks for all the ideas.
Just a couple of thoughts. I'm in New Zealand so need a nz source of parts or it gets to expensive for shipping. And my drive is a 400v drive I think dc bus voltage gets up to about 650vdc. Sounds like I need to do some resistance calculations.. Regards Andrew On Sun, Dec 27, 2020, 9:20 AM Gene Heskett <ghesk...@shentel.net> wrote: > On Saturday 26 December 2020 12:35:17 Dave Cole wrote: > > > I'm sure those could be made to work if they are of an acceptable Ohms > > range, but how do you mount them? > > They are just elements. > > Most braking resistors on larger machines are in cages on the top or > > side of the control panels. > > For small drives, they are oftentimes just screwed to the panel > > backplane, But then they don't get that hot. > > > > By the time you fab the cage, you can almost buy one new with a cage > > and that is rated. > > Which is what I did, but its not in a cage, its encapsulated in a 1x2 alu > extrusion about 8" long with bolt holes in the end tabs. $29.95 + ship > from a seller in KY. With leads long enough I can hang it on the > plumbers strapping holding up the shelf the electrics are on above the > 6040. > > > Dave > > > > On 12/24/2020 1:36 PM, Jon Elson wrote: > > > On 12/24/2020 11:43 AM, Dave Cole wrote: > > >> Automation Direct sells braking resistors. > > >> https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_so > > >>ft_starters/ac_variable_frequency_drives_(vfd)/vfd_accessories/braki > > >>ng_units_-a-_resistors > > >> > > >> Looks like the cheapest one is about $30. > > > > > > I've used stovetop elements from eBay for about $12 or so. If they > > > are good enough for > > > Haas in mass manufacture, they ought to be good enough for me. > > > > > > Jon > > > > > > > > > _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
