Re: Testing servos

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

>
>
> GRautoHP@a... wrote:
>
> >Is there any safe way to test my servo motors to make sure there

good??????

> >
> >
> Assuming this is a DC brush servo motor, connect a D cell to the

motor

> wires. If it turns slowly but smoothly, it should be fine. If

there is

> jumpiness
> or speed variations as it turns, that is not a good sign.
>
> Jon

What would be the easiest way to test an AC PM servo motor without a
servo drive? The encoder is easy I guess, just hook it up and turn
the motor to see that it gives out the signals it should, but how do
I test the status of the windings/magnets?

Arvid