Motors

Pudge565

When I can find a scanner I will post a picture of how our shop teacher explained to us how to do it. It does makes sense now that he explained it to us. But I do know now that I need to work on ladder diagrams. I will be proficient at it by the end of the year.

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There is no such thing as a stupid question, but there is such a thing as an ignorant person, with a question, trying to learn.

micromind

The drawing that Wirenut posted will work just fine. The motor starters (MS1, MS2, and MS3) can be 3 pole double throw relays as well.

The relays will be far less expensive, but the motors will need to be single phase, and be overload protected by fuses, separate overloads, or built-in thermals.

Rob

Yoyizit

When you get a minute,
you should figure out AND gates and OR gates. And, Exclusive ORs. These "logic functions" are used everywhere.

E.g. the Check Engine Light implements an OR function. Any one or more sensors indicating car problems will light the light. Probably half a dozen sensors scattered throughout the engine and transmission feed this one light.
With paralleled N.O. switch contacts, or paralleled switching transistors, any one closing can run the motor.

N.O. switches in series implement an AND function; they all must be closed to pass current.

J. V.

Wirenut, Thanks. That was what I would have drawn for the OP. Did you take a picture of the drawing? Oh. yes it looks fine and would be what the OP needed.