Re: Thanks Mariss/Where are you!

Mariss Wrote:

> (3) Sure as God made little green apples someone will run it off of
> rectified 115VAC, kill himself and more lawyers will become rich at
> my expense.

Mariss, running from a rectified 115vac source sounds very appealing,
and I must admit that is why I would like a drive that is rated to
handle the higher voltage.

If the circuit is properly grounded and fused, where is the danger in
doing this? I believe many of the industrial servo drives work off of
a rectified AC source.

Would the use of an isolation transformer make it any safer?

Or is the risk because of the use of home-made cables and cobbled up
control boxes?

Just curious as I'd love to do away with the large DC power supplies.

Sincerely,

Paul Rooney

--- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> Eric,
>
> Couple of problems with a 160VDC rating:
>
> (1) The drive becomes larger and more expensive.
> (2) The market for that class drive is much smaller.
> (3) Sure as God made little green apples someone will run it off of
> rectified 115VAC, kill himself and more lawyers will become rich at
> my expense.
>
> The ethernet cores are interesting but they are a little more
> expensive and I don't know what the CPU overhead will be to use
> ethernet. I am writing the stuff in assembly because every
> microsecond counts.
>
> I've got the point-to-point, linear interpolation and circular
> interpolation algorithms worked out. The point-to-point one is
> written up and running already, so I am just about 1% finished with
> the project.
>
> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., "unterhausen" <unterhausen@y...> wrote:
> >
> > Mariss,
> > Just don't buy any of the rcm2300 ethernet rabbitcores, ok? Darn
> > things are really hard to get right now. I keep wondering why the
> > voltage on your drives are so low. I would own some 320's right
> now
> > if the voltage went to 150 or so. Are you thinking about going
> > higher with the brushless amps?
> > Eric