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Author Topic: Voltage reference  (Read 2277 times)

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Offline N4NV

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Voltage reference
« on: March 14, 2010, 06:29:29 PM »
I am installing a Pokeys.  All of everything on my CNC machine is powered by a regulated power supply +5V, +10V and +24V.  Nothing is powered by the USB from my computer.  It appears that the Pokeys gets it power from the USB port of the computer.  How should I wire it so that things like switches, encoders etc will reference properly?  For instance, my encoder gets its +5V from the power supply.  If I wire the channel A and B outputs directly to the PoKeys, will it still work?  Also, I use Hall effect switches for a lot of functions on my machine.  They typically have +5v, Gnd and a Output.  If I power the Hall switch from my power supply and connect the output to an input of the Pokeys, will it work? 

Thanks

Vince

Offline borisz

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Re: Voltage reference
« Reply #1 on: March 15, 2010, 02:36:28 AM »
Hi!

You should connect all GNDs. GND is the reference.

regards

Boris
www.poscope.com home of PoKeys USB HID, IO, USB, Ethernet controler and PoScope USB PC oscilloscope