On Thu, 2008-01-10 at 01:06 -0500, Stephen Wille Padnos wrote: > Hi Kirk. > > Those two parts are diodes by Diodes, Inc. They're 1000V, 1.5A, > standard recovery, SMB package. DigiKey has a number of variants of > this part, and I'm not sure what the difference is between them. > > You should probably lift one side of the diode when checking continuity > - while it's in circuit, you don't know what you're checking. > > - Steve > > > Kirk Wallace wrote: ... snip > ... The parts in question are next to > >the question mark here: > > > >http://www.wallacecompany.com/machine_shop/00012-1a.jpg > > > >and a close up here: > > > >http://www.wallacecompany.com/machine_shop/00013-1a.jpg > > > >There is a burned trace above the top part, and I measured zero Ohms in > >both directions on both parts. > > > >Thanks.
Thanks Steve. I replaced the diodes and the drive works fine. I am actually surprised how well it works. It has a fair amount of consistent torque at very low speeds. I have spare diodes, so now I'm ready to try to break it on the next step. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
