Re: [CAD_CAM_EDM_DRO] Motor Noise?

Hi Sven,

Yeah, that's a lot of power! must be bigger then an 813? A more modern
tube! I think you're saying that the "interference" CAUSED by the PLC
is minor compared to the spurious output of the RF!

Alan KM6VV

"Sven Peter, TAD S.A." wrote:

>
> Well Peter and Alan,
> The power talk about is comes out of a 4 KW transfomer at 4500 Volt
> and is pulsed at 1,3 or 1,5 MHz by a huge (12" tall) radiostation
> amplifier tube.
> I guess that the interference eradiated of the 40mA consuming miniPLC
> is a minor issue. Don't you agree?
> Sven
>
> Alan Marconett KM6VV wrote:
>
> > Hi Peter,
> >
> > That's true! Remember playing "Daisy" on the Altair 8800 computer?
> >
> > Alan KM6VV
> >
> > ptengin@... wrote:
> > >
> > > In a message dated 06/25/2001 4:34:49 PM Hawaiian Standard Time,
> > > KM6VV@... writes:
> > >
> > > > That sounds like a pretty rough environment for a PLC! Shielded boxes,
> > > > with feed-throughs for power and control lines are probably in order.
> > > >
> > > > Alan KM6VV
> > > >
> > > >
> > > >
> > >
> > > Alan and Sven,
> > >
> > > I have many PLC's running here. I can't run them with electrical
> > > enclosures open. They radiate out so much RF noise, radios and such get all
> > > kinds of interference. Neat how you can hear the software drop into different
> > > loops as the machine cycles through it's job. Hard to say what you are
> > > protecting from what.
> > >
> > > Peter
> > > THRD, Inc.
> >
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> [Non-text portions of this message have been removed]
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