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the control circuit of the common electric motor(5)

2016-09-04 01:59  
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the control circuit of the common electric motor(5)
When the circuit is installed,you should install 51 abd S2,53 and 54,55 and 56 at three places.At the first place,when 51 is pressed,KM is conducted to pull in.The normally open contact is conducted.M works.When 52 is pressed,KM is released.M stops working.In the same way,when 52 is pressed at the second place or when 55 is pressed at the third place,KM will pull in.M works.When 54 or 56 is pressed.KM will release.M stops working.In this way,the electric motor can be controlled at three places.If you want to have more places to be controlled,you can just connect normally open control button in parallel or connect normally closed control button in series.