Flowline LV42 Switch-Tek Manual do Utilizador descarregar pdf (Página 8)

8of10 MN301200 RevA

WIRING StepFive

ELECTRICALCONNECTIONS:

TheLV41andLV42seriesfeatureaSPDTrelaycontact.SPDT,singlepoledoublethrowallowsforoperationof

both increasing and decreasing level, depending on the connections made between the terminals of the

micro‐switchandthecable.SPDT,whichisathree‐conductorcable,hasoneleadthatiscommon,onethatis

normally open (NO), and the other that is normally closed (NC). For the proper connections of these

conductorspleaserefertothewiringdiagramsbelow.

NCWiring:



TheNormallyClosed(NC)wiringistypicallyusedforafillingoperation.Thecontactwillcloseatalowlevel

andopenatahighlevel.

NOWiring:



TheNormallyOpen(NO)wiringistypicallyusedforanemptyingoperation.Thecontactwillcloseatahigh

levelandopenatalowlevel.

Warning:Whenmakingtheconnectionsdescribedabove,ensurethatthemaximummotor

powerdoesnotexceedthevaluesindicatedonthelevelswitch.Thepowersupplycableis

animportantpartofthesumpfloat.Shouldthecableappeartobedamaged,discontinue

useimmediatelyandproceedtoreplacetheunit.Theterminalusedmustalsobeprotected

againstaccidentalbreak.Also,correctlyinsulateanywirenotinuse.

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Flowline LV42 Switch-Tek Manual do Utilizador Página 8