Re: Remember Mr. Bill's servo lite?

Understood. So why do I need the power supply isolated? Everything in the shop is grounded. The floor is concrete.

When I first set this variac up, I took a voltmeter and probed from the mill to everything within 6 feet and there was no voltage delta.

Mike

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "picengraver" <picengrave@...> wrote:
>
> Mike,
> A Variac's output is NOT isolated from it's input as standard transformers are. The risk of electrocution is high if one comes into contact with the output voltage and earth ground (floor, water piping, machine frame, etc.) Why risk someone's life?
>
> Regards,
> John Champlain
> www.picengrave.com
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "mikep_95133" <mikep_95133@> wrote:
> >
> > Really? How so? It's only been a part of the system for years now.
> >
> > Mike
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dan Mauch" <dmauch@> wrote:
> > >
> > > Using a variac isn't safe. You really shouldn't use one with your servo
> > > system.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Dan Mauch
> > >
> > > www.camtronics-cnc.com
> > >
> > > dmauch@
> > >
> > > Stepper and servo motors
> > >
> > > Kits, assembled and custom CNC using Gecko products.
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>