On Mon, 2009-10-19 at 20:25 +0200, Thomas Kaiser wrote: > Hey > > Does anybody on this list use the "UHU Servocontroller" > [http://www.uhu-servo.de/]? > If so, what are the experience with this? What motors you are using? > > I am just interested at anything somebody did with this ;-). > > Thomas
In my opinion, step/direction servo motor controllers are not ideal for EMC2, since the motion control (PID) and position feedback is built in to EMC2. For servo's, a PWM or analog input driver is better. With this kind of driver, you will have access "under the hood", allowing you to tune and customize your system through EMC2's HAL. Many step/dir controllers only have a separate Windows program for tuning. UHU is a do-it-your self project, so if you want to build something yourself this may help: http://www.electronicsam.com/images/KandT/servostart/schem/ Or you can copy a reference h-bridge design from one of the chip manufacturer's data sheets. When you get into the higher power motors, you will need to allow for current limit control, FET shoot-through, and fly-back currents. Usually, it is better to purchase higher power drivers. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
