1 or 2 dedicated 120VAC circuits for my CNC?

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3 years 11 months ago #258177 by Sray69

One thing I noticed is that your two estop buttons look...odd.  I don't understand why you've got the 24vdc wires split and going to both button contact sets.  Since I can't see the actual switch contacts I can't tell which wire pairs are connected via NC, but I think if you push either button the other one will still pass 24vdc to the Mesa input.

Estops should be a chain - wired in series.

Originally I was using a E-stop with 1NO (24V - Mesa) and 1NC (120V) . I was told to run the NC in series and the NO in parallel. I guess I forgot to change it so that they are both NC in Series. BTW, I am using the Automation Direct E-stop buttons with the two NC contact blocks.

You put a ton of work in to that diagram, I get it.  But can I suggest you have a go with one of the free circuit diagram software packages?  I use TinyCAD, but others here like a couple other (probably better) packages.

The program I am using is a circuit diagram software. It has all the symbols but most of them are confusing and make no sense to me. I just created mine this way so I could use it as a visual guide. I have already spent a solid month and a half (8+ hours a day and weekends) just to figure out all the components I need and how they are connected. I don't want to have to learn all the symbols too. Especially since this is just for my own use.

That diagram is really hard to follow...  where you've used dashed/dotted lines, it's hard (or impossible) to see where they connect to other wires or terminals/components.

Now you know why I hid all the other conductors in my previous post. LOL. If you download the image you can zoom in much further and see where everything connects. Also the References section shows the terminals for the relays/contactors that may not be very easy to see when zoomed in. 

Sorry it is hard to understand. I appreciate you taking a look and all the help you have provided. I went ahead and changed the E-stops to both be in Series. Does this look better? I also found one of the dashed black lines was inline/behind one of the red lines so it looked like it didn't go anywhere. I fixed it now.

Updated Diagram

Thanks

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3 years 11 months ago #258184 by spumco
Took me a few minutes to figure out what the little green relay was doing, but once I worked it out...

I think you nailed it.

Sadly, you're missing some big flashing lights and a motorized disco ball.image missing /media/kunena/emoticons/smile.png

Seriously, if you can stomach the additional work, numbering the wires on the diagram and adding labels to the wires as you install them will help in the future.

 
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3 years 11 months ago #258186 by spumco

 I have already spent a solid month and a half (8+ hours a day and weekends) just to figure out all the components I need and how they are connected.


Is that all?

 

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3 years 11 months ago #258187 by Sray69

Seriously, if you can stomach the additional work, numbering the wires on the diagram and adding labels to the wires as you install them will help in the future.

Good points. I hadn't thought of numbering the wires on the diagram but do have a label maker on my list to research/purchase.

Thanks for the guidance. Much appreciated!

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3 years 11 months ago #258189 by Sray69

 I have already spent a solid month and a half (8+ hours a day and weekends) just to figure out all the components I need and how they are connected.


Is that all?

 

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Wow! 

Well to be honest, I thought the mechanical build part was going to be the hardest. I couldn't wait to get to the electrical thinking it would be much quicker and easier. HAHAHAHAHA! Man was I wrong! 

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3 years 11 months ago #258190 by spumco
I'm in love with my Epson label maker.  It prints directly on heat shrink tube, has the smallest diameter shrink tube available, and it has the cheapest (per foot) refills.

 
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