CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Toshiba DC Brushless Servos

Posted by Jon Elson
on 2004-02-11 21:08:29 UTC
Brad Eyben wrote:

>Thanks Jon,
>Where do I find info on your boards?
>Using EMC and your boards will I get a position display back to the PC or is
>it open ended like a stepper system?
>
No, EMC is fully closed-loop for servo systems. You can fool it
with drivers that just send back a position by counting step pulses
(my USC board can do this, too) but the PPMC for analog servos
counts the encoder pulses and reports the count to the CPU. It then
computes a velocity command and sends it to the DAC board to
drive the servo amp.

See http://jelinux.pico-systems.com/PPMC.html for more info.

Jon

Discussion Thread

Brad Eyben 2004-02-10 14:14:43 UTC Toshiba DC Brushless Servos Jon Elson 2004-02-10 21:12:15 UTC Re: [CAD_CAM_EDM_DRO] Toshiba DC Brushless Servos Brad Eyben 2004-02-11 07:05:43 UTC Re: [CAD_CAM_EDM_DRO] Toshiba DC Brushless Servos Jon Elson 2004-02-11 21:08:29 UTC Re: [CAD_CAM_EDM_DRO] Toshiba DC Brushless Servos