I need to run the motor to its top RPM. Thanks, Andy, but I doubt this one will be enough. And even if it is - I think it's overcomplicated solution. Quite expensive too. I am planing to retrofit 2-4 machines.
What do you think about controlling DC SSR with PWM like HDD-9V30E from http://www.power-io.com/products/hdd.htm ? Two more questions then: How to stop the spindle? How to control field weakening - by the same PWM principle, separate SSR? But what about field weakening theory? Or just leave approx. 400V at main windings and increase current on field weakening windings? On 2014.09.11 12:02, andy pugh wrote: > On 11 September 2014 09:34, Marius Alksnys <[email protected]> wrote: >> Do you know any board to buy for this motor? If not - maybe some good >> schematics? > Maybe one from Granite (in Finland) ? > > http://granitedevices.com/digital-servo-drive-argon > > It runs off single-phase mains so will only be about 300V output, > which might limit the top speed (or it might not) > > The plate seems to hint that the original drive might have used > field-weakening for higher top speed. > ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
