Published:2011/6/22 7:38:00 Author:Ariel Wang | Keyword: multifunctional protector, electric motor( | From:SeekIC
When 51 gets through,V5 is saturated to conduct.K is pulled in.The normally open contacts K1 and Φ are connected.KM acts.Then the electric motor M works.At the same time,the current detect and control circuit is conducted to work.When the electric motor is working,the voltage of R0 is low.VI~V4 are stopped.V5 stays conducted.When the electric motor is overload or the working voltage is low,the voltage of R0 increases.V2~V4 are conducted.V5 is stopped.K is released.The normally open contact K1 is disconnected.KM is power down.So KM is released.The electric motor M is power down.So it is stopped.
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