Here's my relay circuit to run 3 dc motor. I want to run one motor at a time, the first switch closed have priority, even if the two others switch are closed. Exemple: If the Switch S1 closed first and the S2 and S3 closed after S1, I only want the motor 1 run. If the S2 closed first and the S1 and S3 closed after, I only want the motor 2 run. Same thing with S3 closed first. How many relay I need and how make the circuit. Thanks
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