Re: Thought I had it figured out!!

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "pug_harley_corvette"
<bsouthnow@a...> wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Ed Fanta <atex57@m...> wrote:
> Ed;
> Thanks for the info. I'm going to use the 320's and I just read the
> set up sheet that came with the shipment and it does state not to use
> a power supply higher than 5 volts above the motor rating (duh). I
> guess I should have figured out that the servo is nothing but a dc
> motor with an encoder. But, I'm bein cautious. Don't want to
> replace things right away. My transformwer has a 25 volt output
> which will yield a 35 volt dc output. Is there a loading resistor
> circuit I can go with to knock it down to 30. I don't want to
> regulate the supply as it seems not the way to go! Thanks for all
> the help.
> billyjack>

Check the motors. I have seen some odd labels on motors and the lable
was just an intersecton on a graph for the application.

ie: a 200 volt motor being used on a 90 volt device would have a
lable listed for 90 volts and RPM at 90 volts and hp at 90 volts and
so on.

As for your power supply. Connect a load that is about the load of
one motor and test it again. If you are testing it without a load, it
may be higher than with.

As I see it, your 25 volts AC gets rectified to 24VDC, then with a
cap, it bumps up to 33.9 volts.

One way to drop a volt or two is to use diodes in the line. then need
to be heavy duty, chassis mount are easier to use to get rid of the heat.

But, for the 30 volt motor, the 34 volts is pretty close.

Dave