Planning - Bridgeport Interact 1 linuxCNC Retrofit

36.90ma to activate the relay.

attached data sheet for DC relay


So I can do one relay per axis with these? One for each enable signal per axis that is.

I wired my machine using GPIO pins and it works fine. The outputs have plenty of power to drive small relays. I didn't look at how the ENA outputs work and can't tell you if they are directional or not.

Hey great news. I got the enables working on a test. I connected it as I last described from --Todd -and- it's working.
Thanks for every one helping me understand how to make this work!

My next question is :

can I create a jumper coming from field power using the unused pins to connect to the enable + pin? Or do I need to run sourcing power directly from my 24v system to them each individually?

I'm powering the 7i77 field power from the same 24v supply.

Basically I'm wanting to use the VFIELD 3 unused pins as a 24v terminal block, to power my enable switches.

cncnoob1979 wrote: Hey great news. I got the enables working on a test. I connected it as I last described from --Todd -and- it's working.
Thanks for every one helping me understand how to make this work!

My next question is :

can I create a jumper coming from field power using the unused pins to connect to the enable + pin? Or do I need to run sourcing power directly from my 24v system to them each individually?

I'm powering the 7i77 field power from the same 24v supply.

Basically I'm wanting to use the VFIELD 3 unused pins as a 24v terminal block, to power my enable switches.

If I understood the question correctly. Yes. I think one of the main reasons for the extra field power connections on the 7i77 is for you to use them for this purpose of routing field power to things like your ENA+ connector.

image missing http://i346.photobucket.com/albums/p431/swill008/2015-11/38C016DE-A2B4-480E-9736-A9E869E1494C_zpsialnk5em.jpg

image missing http://i346.photobucket.com/albums/p431/swill008/2015-11/023954BD-05F2-4E32-969A-A65C3E9F43A0_zpsosjq3zkp.jpg

image missing http://i346.photobucket.com/albums/p431/swill008/2015-11/5194C349-ECA6-4150-8C9F-B6681C4AC83F_zpslwh1dfce.jpg

Well after a few hours testing all I need todo now is wire up an encoder from the 702B EXE box.

I was [/-----/ ]this close to cutting an hdmi cable. But I need to just order some cable. I think I'll just grab some CAT6e cable and test it.

Thanks guys, yeah I ask some silly questions sometimes but you help me out anyway!

Getting closer, I have run/stop limits and this is all starting to make sense to me now!

If you use cat5 or cat6 (no advantage to using cat6 BTW) then you need to give some thought as to which wires to use. Cat5/6 has 8 twisted pairs. For the differential signals use a pair for the plus and minus signals. Pairs are the same color but one wire will be predominantly white. This will be the A, B and Index signals. You will have a number of unused wires so be sure that the unused wires are connected to ground on one end. Not being shielded should not be a problem as long as the run is fairly short.