CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Dedicated mb for PID

Posted by Jon Elson
on 2002-06-28 22:55:46 UTC
Doug Harrison wrote:

> The current methods of converting S/D pulses to servo control use analog
> tuning of the PID (or PD) loop. Gecko 320/340 amps do this quite well.
> Rutex has a board that will convert S/D to +/-10V for use with most other
> servo amps.
>
> Suppose a person wanted to do the PID in software. A dedicated PC
> motherboard could be used to read S/D pulses from the control computer and
> compare this to encoder position via a camtronics card. Servo output would
> be through an analog output card, also in the dedicated MB next to the
> camtronics card. Software for the PID MB would reside on a Sandisk
> Flashdrive.
>
> Assuming the motherboard was free, this arrangement would cost about $250
> which is less than four Rutex boards (one per axis). It would also allow
> one to vary the permissable following error.

You could also do this in one FPGA, probably for $30.

Jon

Discussion Thread

Doug Harrison 2002-06-28 20:18:33 UTC Dedicated mb for PID Jon Elson 2002-06-28 22:55:46 UTC Re: [CAD_CAM_EDM_DRO] Dedicated mb for PID Doug Harrison 2002-06-29 07:48:59 UTC Re: Dedicated mb for PID vavaroutsos 2002-06-29 09:12:00 UTC Re: Dedicated mb for PID Brian Pitt 2002-06-29 09:27:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Doug Harrison 2002-06-29 09:42:56 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID vavaroutsos 2002-06-29 10:02:26 UTC Re: Dedicated mb for PID Doug Harrison 2002-06-29 10:33:55 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Nic van der Walt 2002-06-29 12:20:52 UTC RE: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Joll503@A... 2002-06-29 14:39:03 UTC Re: [CAD_CAM_EDM_DRO] Dedicated mb for PID Jon Elson 2002-06-29 16:37:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Jon Elson 2002-06-29 16:43:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Jon Elson 2002-06-29 16:46:13 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Doug Harrison 2002-06-29 18:43:47 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Doug Harrison 2002-06-29 18:48:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID vavaroutsos 2002-06-30 00:25:44 UTC Re: Dedicated mb for PID Les Watts 2002-06-30 05:09:02 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Doug Harrison 2002-06-30 09:34:14 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Jon Elson 2002-06-30 17:36:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID Les Watts 2002-07-01 07:29:08 UTC Re: [CAD_CAM_EDM_DRO] Re: Dedicated mb for PID