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16

Parallel Port breakout boards, motherboards, and dedicated accessories / Re: My PMDX-126 Thread

« on: January 19, 2015, 10:14:43 PM »

Thank you Bob, and all that info is helpful

17

Parallel Port breakout boards, motherboards, and dedicated accessories / My PMDX-126 Thread

« on: January 19, 2015, 06:13:37 PM »

First off hello to everyone, and a thank you to PMDX for putting up this forum, since I'm fairly new to CNC I know I'll be asking a lot of question too.  : )

I just purchased a PMDX-126, PMDX-107 and an ESS yesterday and have been looking over the manuals.

And my first question is a really simple one dealing with Home/Limit switch wiring.
In the PDF manual on page 22 it shows the diagram for "normally closed" switches and has the GND wire going out through the switches and coming back to terminal "13" (or vise versa). I know this is showing for one axis.
Do I need to wire each axis having it's own GRD loop, or can I have a single GRD and bring each axis back with their own wire & terminal/pin? Example; one (1) GRD wire out and daisy chained to each axis on one side of a NC switch (3 axis total), then GRN wire for X to #11, YLW wire for Y to #12 and BLU wire for Z to #13.
And if I can do this, does it matter which GRD on the J12 strip I connect to?

John