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the control circuit of the common electric motor(4)

2016-09-03 00:21  
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the control circuit of the common electric motor(4)
When you use it,Q and 51 need to get through.Then KM and KT1 are conducted to pull in.M works.After it works for a while,the normally open contact of KT1 which is delayed to close makes KA and KT2 conduct to pull in.And the normally closed contact of KA is disconnected.KA is released.The normally closed contact of KA is connected.KM and KT1 are conducted to pull in.M works.It goes on and on,M works at an interval time.If S2 is pressed when KM is released and M stops working,KM is pulled in.M starts to work immediately.