The remote controller of drainage and irrigation pumping station

Published:2011/9/6 4:43:00 Author:Felicity | Keyword: remote controller, drainage and irrigation pumping station | From:SeekIC

On remote start, press S3, and the phase voltage of L3 goes through the normally open contact of S3 to put on KM, And KM turns on, and the normally open contact KM1, KM2 closes and the pump motor starts. After release S3, the phase voltage of L3 goes through FU2, HL, S2, normally open contact KM2, KM and the normally close contact of KR to phase L2 to make up circuit and maintaining KM close.When it needs to stop, press S4 to make KM off and the pump motor M stops.



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