Re: [CAD_CAM_EDM_DRO] PC serial port to VFD speed control ??

Hi Andrew,

Companies like Sea level sell converters for these. Quite common.

http://www.sealevel.com/

Alan KM6VV

"Andrew Mawson " wrote:

>
> Hi,
>
> I'm looking to control the spindle speed of my mill conversion
> (running TurboCNC under DOS) by talking to the VFD via the serial
> port. (Turbo CNC has a placeholder for customising the spindle speed
> command)
>
> Most VFD's seem to be 'RS485' communications and not the 'RS232' your
> average PC is equipped with.
>
> Is there an easy / cheap way to convert from one to the other bi-
> directionally ?
>
> Andrew Mawson
> Bromley, Kent, UK