Re: [CAD_CAM_EDM_DRO] Re: EMC spindle speed control

On 18 May 2001, at 21:17, machines@... wrote:

> --- In CAD_CAM_EDM_DRO@y..., "Marty Escarcega" <escarcega@h...> wrote:
> Marty
> There shouldn't be any need for feedback. I run two Ahha's that put
> out 0 - 10v for the VFD. The machine macro file can be edited so that
> you get the right voltage for the speed. On mine I also have a remote
> VFD panel that can show amps, speed, volts etc If I set the machine to
> say 2500 rpm the machine runs at this speed and only alters slightly
> under load VFD display will probably vary from 2490 to 2520.
>
> John Stevenson

I thought as much John, this is the term open loop? Does EMC
support Spindle speed? (The output needed to vary the voltage to
the VFD?)

Marty