I am retrofitting old lathe machines Emcoturn 220. It has Siemens DC spindle motor, originally controlled with SCR thyristor bridge. Motor specs: https://drive.google.com/file/d/0Bx5r7yxJ8GWDb2pFMjhlT19yYTg/edit?usp=sharing
400V, 8.2A in short, while I don't know anything about other windings yet. Spindle has feedback encoder installed. I am thinking about 3 phase bridge and capacitor to get 600VDC and one transistor with control circuit for PWM control and some protection circuit. I will be able to use PWM signal from Mesa board. Do you know any board to buy for this motor? If not - maybe some good schematics? Marius ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
