Re: [CAD_CAM_EDM_DRO] Re: Weird parallel port issue

Andy,

The new break-out board that Jim Cullins designed uses the 12.5 KHz signal
and controls three outputs (solid state relays). If the signal is not
present. a M01 for example will not turn on the relay. This is nice during
start up where you do not want things being turned on before Mach1 has
control.

Details and prices are on my web page at www.campbelldesigns.com.

Bob Campbell

----- Original Message -----
From: "andyolney" <andy@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, March 07, 2003 12:44 PM
Subject: [CAD_CAM_EDM_DRO] Re: Weird parallel port issue


> Evidently the parallel port can spit out some stuff at startup
> because Art Fenerty put a 12.5 KHz "I am running properly" output
> into his Mach1 program. I believe the intention is to have a relay
> in the E-Stop circuit that is only closed if that signal is present.
> A simple circuit to detect the signal and run the relay is required.
>
> Andy
>
>
>