On Thu, 2008-10-23 at 09:03 +0800, ygdan1001 wrote: > hi! > how connect EMC2 with the servo motor in the real world? > is that ok, if just configure the parallel port? > if i do this, is it safe to my computer? > > thank you! > yang
Here is a link to a minimal servo configuration: http://emergent.unpy.net/projects/01142347802 This can be scaled up a bit, but as the machine gets bigger you will need a servo driver that can keep itself within safe operating limits. An example PWM driver might be: http://pico-systems.com/pwmservo.html The signals coming from the parallel port are fairly slow, so if you need higher speed or accuracy, you can use a parallel port controller card such as: http://pico-systems.com/univpwm.html http://www.knjn.com/board_pluto-P.html (and others) http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC2_Supported_Hardware (or a PCI card controller) There are a number of parallel port breakout boards with opto-isolation that can help protect your PC: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=380067341776 I try to use a cheap PCI parallel port card so if I blow it up, the motherboard is still okay. http://www.newegg.com/Product/Product.aspx?Item=N82E16815166007 The links above are just to give you an idea of what is available. There are other products available that also work well. I also assumed that you where interested in DC brushed servos instead of DC brushless or AC servos. Kirk ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
