Hi Marius. My 1 cent opinion is to by a new DC spindle drive according to the motor specification . Nowadays this kind of drives are not too expensive . This kind of motor seems to be a sort of custom made for EMCO so you should also verify the old drive specifications and wiring diagram to be sure to match properly with the new drive. The time=cost (and safety aspects) discourage an "homebrew" solution .
Alex On Thu, Sep 11, 2014 at 11:25 PM, David Armstrong <[email protected]> wrote: > Marius, > the spindle motor in question is going to be a beast , as it's really a > servo motor and Tacho , and may well have brake also > these tend to crazy to work with , as you'll also need to be able to not > only hold positon and zero crossing switches etc > you need to monitor each leg and phase . amongst others to do it correctly > > it will also depend to a point on the type of winding used on the dc motor > . > as Andy suggests chat with Jon Peter or JMK . > > or find a Kolmorgen servo drive and Line Balancer , as thats quite a beefy > load > to toast . > > Dave > > > > > > > On 11 September 2014 22:06, Karlsson & Wang < > [email protected]> wrote: > > > I have only worked with IGBT/MOSFET and expected solid state relays to be > > slow devices not suitable for PWM but they say "12 - 20kHz FAST PWM > > speeds". They state it is solid state relays but the figure on the top is > > an IGBT which require a good driver and electrical isolation! > > > > Nicklas Karlsson > > > > > > > > On Thu, 11 Sep 2014 11:28:38 +0100 > > andy pugh <[email protected]> wrote: > > > > > On 11 September 2014 10:59, Marius Alksnys <[email protected]> > > wrote: > > > > > > > What do you think about controlling DC SSR with PWM like HDD-9V30E > from > > > > http://www.power-io.com/products/hdd.htm > > > > > > I think you need to wait for advice from folk who actually know > > > something about building practical motor drives, which probably means > > > Jon, Peter or JMK > > > > > > -- > > > atp > > > If you can't fix it, you don't own it. > > > http://www.ifixit.com/Manifesto > > > > > > > > > ------------------------------------------------------------------------------ > > > 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 > > > > > > > ------------------------------------------------------------------------------ > > 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 > > > > ------------------------------------------------------------------------------ > 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 > ------------------------------------------------------------------------------ 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
