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Wiring diagram/ladder diagram 2 1

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NickFury

Civil/Environmental
Feb 26, 2008
11
I have trouble trying to understand converting wiring diagrams into ladder diagrams. In this wiring diagram it splits into different directions (like most) and it's hard to get a sense of direction to tie it all together. I have included the wiring diagram and an attempted drawing. Am I even on the right track? Thank you.
 
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NickFury,
Yes, you're doing OK. You might want to add the terminal numbers on the relays and perhaps number your terminal strip from left to right, 1,2,3 etc.
Give the terminal strip a name e.g. TB1. Use a different symbol for the terminal strip terminals to differentiate from the relay terminals.
Add the contacts and indicate which relay they belong to e.g.
CR1
--||--
Note: Although the contact is NO/NC you only need to show the portion that's wired.
Just scratch it out on a scrap of paper until you get the idea of how it's wired then do a final drawing.
Regards
Roy
 
Sorry NickFury,
I was away on Friday. You are on the right track, missed a couple of contacts though. I think you probably appreciate how long it takes to draw a ladder diagram, I traced it out myself and it took a couple of hours. I will pdf them tomorrow and attempt to post them on the board (i haven't done that before)

What are you trying to do, code the equivalent into a PLC?
Regards
Roy
 
Thank you Roy. I am trying to turn the wiring diagram into a ladder diagram. Trying to learn how to do this, I give credit to those who know how to do this cause its not easy.:)Thanks again. I appreciate the help.
 
Hey NickFury,
I draw this type of drawing all the time. Here's my take on converting the drawing.
I labeled the terminals from right to left.
This is a very typical start stop circuit. I imagine the CR's control something else once this is installed.
Good luck!
 
 http://files.engineering.com/getfile.aspx?folder=9897aae4-f7c6-4794-b600-a086543827a3&file=LadderWiring.pdf
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