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| surface grindy type project |
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| shipto:
Bit off topic but since I dont have anything constructive to do with grinder I decided to put the wheel arch on the camper.. finally. |
| Brass_Machine:
How did I miss this thread?? Very cool! Eric |
| shipto:
:bang: Been a bit quiet last few days as I have had to take a crash course in ladder logic to operate the plc, actually its not too bad once you get your head around it. To start my main problem was I kept thinking of it like basic computer programming but afterwards I started thinking about it like a live rail and earth rail. |
| awemawson:
Just remember that ladder logic developed to replace umpteen relays, so yes, think of two power rails with contacts and coils between them in intriguing combinations |
| shipto:
Been busy making power supplies need 24v for the plc and controls 12v at about 3amp for the y axis motor. Took a little time to work out the panel too (pic). From top left it is Grinder start/stop, X axis start/stop, then Y axis start and Y axis stop and the final 2 yellow are to bring Y axis backwards and forwards. Need to get some nice labels now. |
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