Re: [CAD_CAM_EDM_DRO] Motor Noise?

Hello Alan,
I think the two oportunities i have on this machine are:
If I use the mini PLC use shielded wire and put ferrite beeds on the wires
or simply make it like with the othe machine I modified, where I made the whole
control thing with small auxiliary relais. But this time I will need at least
some 12 relais and the solid state relais.
By the way my soldering is awfull and will take more time than programing.
Lets see.
Sven Peter

Alan Marconett KM6VV wrote:

> 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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