Re: Servo as Lathe Spindle Motor

Hugh,

Unfortunately no. The integrator in the PID loop would have the motor
running full tilt in very short order.

Mariss

--- In CAD_CAM_EDM_DRO@y..., "mogulaj" <smithh@i...> wrote:
> Mariss,
>
> Would it be possible to use one of your Geko 3xx drivers to run a 2
> HP servo motor as a lathe spindle. If I run a pot, or the analog
> output from a PC, into the error input, not from an encoder, such
> that the error never goes to zero, would that work?
> A positive error would run the spindle forward while a negative
error
> would turn the spindle backwards with infinite speed control. If I
> know what I think I know, the open loop nature of this system would
> also be self correcting for increases/ decreases in load. Right?
> Just a thought.
> Comments please.
>
> Thank you
> Hugh Smith