Last month I had a thread going concerning reverse engineering my Bandit stepper drives. Someone on CNCZone had a schematic for these drives. In case anyone is interested I have a link here:
http://www.wallacecompany.com/machine_shop/Shizuoka/Driver% 20Schematic1.jpg It's not very legible but it's much better than what I had. There don't seem to be many examples of stepper drives with this voltage and current in the hobby arena so I thought it might have some value. My original power supply puts out 45 Volts DC to the drivers, but also had windings for plus and minus 12 Volts for the logic boards. Since I don't need to other windings, I was thinking I could switch to a toroid transformer I have on a shelf, which is smaller and doesn't waste any extra windings. I am guessing the toroid will end up putting out 55 Volts DC though. What would be the ramifications of an extra 10 Volts? Also the present filter capacitor is 10,000 uF. That seems a little small, but I suppose Bandit know better than I would. Is there a rule of thumb on this? Thanks. -- 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) ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
