On Mon, 2008-06-09 at 20:17 -0700, Kirk Wallace wrote: > On Mon, 2008-06-09 at 20:24 -0500, Jon Elson wrote: > ... snip > > I have another test. Try running the system exactly as it is > > when the inductors overheat, but with the motor disconnected. > > If it still overheats, you can remove C14 and C15 (right near > > the power connector). These are the capacitor part of the > > output filter. Of course, this will allow the servo amp to > > radiate EMI, but it will remove part (maybe a major part) of the > > circulating alternating current from the inductors. > > > > Let me know what you find, I'm still trying to decide if this is > > a major problem in all applications, or only a concern on > > spindle drive applications. > > > > Jon > > The inductor still heats up with the motor disconnected. I haven't tried > removing C14 and C15 yet. I'll let you know what happens. >
Removing C14 and C15 stopped the inductor heating without affecting anything else, as far as I could tell. I wonder if smaller caps or a different core type might help. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC/EMC CNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending Craftsman AA 109 restoration Shizuoka ST-N/EMC CNC) ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
