Jon, PLEASE SELL ME STUFF - lol Really want to get this moving...
Yes the motors are 141V and 20A(stall) I have some pictures of the plates on the motor. I also have the original maintenance manual of the whole electric stuff. All original cabinet with driver and computer etc. Do you want me to send them to you email address? I don't think it is possible to post pictures here. Or is it? Found a label in the internet. Is 1:1 what I have: https://s3.amazonaws.com/Icarus/IMAGES/SM5/A06B-0352-B731-LABEL.JPG On 13-10-24 09:04 PM, Jon Elson wrote: > Peter C. Wallace wrote: >> The Fanuc digital drives are relatively simple power stages that need a 3 >> phase current controller that implements field oriented control. > Not really trying to sell you stuff, but I do have some gear that should > be able to drive these > motors, now. The motors, actually, should be easy, as long as they are > the ~150 V > variety, not the 250 V ones. The problem is the proprietary Fanuc encoders. > I don't have exact cross references to your specific motors, but the > B731 looks like > a 2000P ABS encoder, of the older scheme. These provided > industry-compatible > ABZ quadrature, but the commutation signals were proprietary. I have a > converter > that provides rough commutation for the first turn after power-up, and then > counts quadrature from the index pulse to give the most accurate commutation > signals. I also have a PWM drive for brushless motors, and a PWM > controller. > This is a simple system, and uses "six step" drive, sometimes called > trapezoidal > commutation, and is not as smooth as a sinusoidal drive scheme, but it > is a lot > simpler. > > Can you get me the motor and encoder nameplates? I'll try to verify the > compatibility of them with my gear. (I also have converters for the newer > Fanuc serial pulsecoders, if in fact that is what is fitted to the robot.) > > Some other options are Copley servo amps that take two sinusoidal torque > command > signals, or AMC or Servo Dynamics amps. > > Jon > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
