Re: Les Newell servo current and voltage

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:

> cnc_4_me wrote:
>
> >By any chance do you have a clamp on ampmeter...Would be

interesting

> >to find out how much current is being used with your 3 axis test

you

> >did the other day...
> >
> >
> Very few clamp-on ammeters will measure DC. They are calibrated for
> 50-60 Hz sine waves, only. There are some current probes with hall-

effect

> devices in them, but they are very expensive.
>
> Jon

Measure the AC input, not the DC.

I'm not sure how the ripple from the drivers would effect the AC, but
I would tend to think you can get a pretty good idea of the current
by measuring before the transformer.

Dave