Re: [CAD_CAM_EDM_DRO] Re: Relay to operate soliniod or other idea?

In a message dated 7/11/2003 11:50:56 PM Central Standard Time,
cabrillo_shepherd@... writes:

> would you use an IO port to
> send signal to solinoid directly or a relay then to solinoid.
>

Shelby: No. The printer port bit is connected to an "input pin" on the
ULN-2003. Ground (pins 18-25) are (-). Pin 9 of the '2003 is connected to te +
solenoid voltage (24 volts?) and to one side of all solenoids. Then each OTHER
solenoid line is connected to the selected '2003 output line. If you do not
"do electronics" routinely, I suggest you do NOT attempt to follow these
abbreviated instructions without a diagram before you!


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