Gerhard Pircher wrote: > Hi, > > I'm seeking for some comments about how to build a mill controller with > EMC2, as I'm completely new to this topic. > I got a 12 years old desktop mill, which was manufactured by KERN- > Microtechnic [1]. The machine is in a very good condition, but some parts > of the original mill controller (a rack mounted controller manufactured > by NUM) are missing and most of the documentation is lost. Thus it was > not possible to get the old controller operational again and EMC2 seemed > to be a reasonable alternative to a commercial product. > > First a few technical details about the desktop mill. It should have a > resolution or 5µm, whereas switches allow to detect the point of origin > and Haidenhain rulers deliver a quadrature signal for relative position > measurement. The mill is equipped with Faulhaber DC servo motors [2] for > the X/Y/Z axis, which are coupled to tacho-generators [3]. > > I thought about using VitalSystem's MOTENCLite PCI [4] card. It's analog > outputs should drive a DC servo amplifier [5] through a standard +/-10V > interface. The tacho-generators will be used to regulate the velocity of > the DC servo motors, which is set by EMC2 (the servo amplifier implements > the closed loop control). > Three of the 4 quadrature inputs of the PCI card will be connected to > the Haidenhain rulers [6] and the generic digital inputs will be used for > the switches to detect the point of origin. > > Since I don't know much about EMC2 yet, I would like to know, if my > (early) concept is feasible and what should be considered when building a > mill controller with EMC2. It would also be nice, if a MOTENCLite user > can share his experiences with this card. You might also take a look at my universal PWM controller and PWM servo amps. These are likely to be less expensive than the items you have listed. See http://jelinux.pico-systems.com/univpwm.html and http://jelinux.pico-systems.com/pwmservo.html
These are 14 W motors? That seems awfully small, even for a desktop machine. Jon ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
