Re: [CAD_CAM_EDM_DRO] Re: Router spindle electrical noise.

In a message dated 10/20/2003 12:30:14 PM Eastern Daylight Time,
cncman172@... writes:

> Jon,
>
> I had the very same problem and I resolved it by replacing the cable
> on my limit and home switches with braid shielded cable. Make sure
> you only ground the shield to the end that attaches to the controller
> and leave it ungrounded at the switch or sensor end. As soon as I
> made these changes all my limit and home switch problems vanished...
> amazing...
>
> Russ
>

Russ:

You found the proper way to handle the interference problems that usually
occur with DC voltage signals on machines that also have AC voltage. The only
thing I might add is that if using just braided shielded cable doesn't totally
correct the problems, you can use a shielded twisted pair cable and that will
often resolve the remaining problems.

Randy Abernathy


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