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hello everybody...i need help about how simulate a seal's circuit (contactor + 2 pushbutton(start/stop)). My circuit is to start a motor...i tried simulate using EWB (electronic work bench) but when i push START..it didnt keep close.


thanks so much...if you can add at MSN to exchange information about EWB i'll thanks a lot.


Fernando Azevedo

mugangalinux (at) hotmail (dot) com


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Hello muganga,


I do not know too much about the EWB package however it would appear from your description that you may have neglected to add a 'seal' or 'hold in' contact accross the start button. This would normally be achieved through an auxilary contact from the main contactor.




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