Re: Question about AC power distribution in CNC controller box

Servos are 2A each. Assume 4 axis. I have no idea what the rating of
the transformers I have are. Waiting for response from the company
that sold them to me, they have no markings.

Spindle is 1/10hp on a TAIG machine, but would like to be able to go
up to 1hp.

The biggest question is if I put two power cords into the box, will
there be ground loop problems? Can I ties both them to 1 ground post
in side the box?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bernard R"
<bwjarandall@c...> wrote:

> What are the power supply requirements for the spindle and motors?
>
> Bernard
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "mrgamber" <mgamber@c...>
> wrote:
> >
> > I am building a CNC controller.
> >
> > I plan on having 4 switched AC outlets on the back controlled by
> > solid state relays.
> >
> > #1 is power to the servo drive power supply.
> >
> > #2 is spindle
> >
> > #3 is mist coolant
> >
> > #4 is flood coolant
> >
> > #3 and #4 are assumed to be very low AMP requirement.
> >
> > My question is, I want to put a 10A power entry module so I get

it

> > all in one plug. Is this a bad idea? Can I put 2 of these modules
> and
> > split the power between say #3 and #4 + controller electronics
> power
> > and the put #1 and #2 on a seperate power cord? This way I would
> have
> > 2 AC power cords entering one box. Is there a problem with ground
> > loops if you do this?