Qtech-data-systems Multi Point Controller (MPC) System Manuel d'utilisateur télécharger pdf (Page 8)

QTechMultiPointControllerforWP2P-QuickStartGuide–v1–August2012  8

 

www.qtech.co.nz Tel:033663713

InputsandOutputs–MultiPointController

DigitalInputs

The digital inputs are normally open inputs that can be connected to suitable

mechanical switches, contacts and other closure devices. An inputis active or ON

whentheinputswitchisclosed,andinactiveorOFFwhentheinputswitchisopen.

ThedigitalinputLEDoftheMultiPointControllerwilllightupwhentheinputisON,

howevertheoutputstatusLEDwillfollowtherulesappliedintheI/Olinkeditor.



Warning–Onlymechanicalswitchesormechanicalclosuredevicesshould

beconnectedtotheinputs.Noexternalvoltageorotherelectricalsourceisto

beconnected.



DigitalOutputs

The digital outputs are solid state devices designed to interface to a low power

relays. When an output is on, it will be connected to the power supply negative,

allowing current to flow into the output terminal to ground.

When in the OFF state, they have a high impedance to

ground and will float up to the power supply positive. The

digitaloutputLEDwilllightupwhentheoutputisON.



Touseadigitaloutputwitharelay,wireasshowninthe

diagramopposite.



AnalogueInputsandOutputs

Theanalogueinputsand outputson theControllerare notusedforcommunicating

withWP2Pmodules.Donotconnectanysignalstotheanalogueinputsoroutputs.



InputsandOutputs–WP2PModules

DigitalInputs

Theinputs(LabelledINP1,INP2andINP3)areelectricallyisolated,normallyopen

inputs.Theyareconnectedtosuitablemechanicalswitches,contactsandother

closuredevices.AninputisactiveorONwhentheinputswitchisclosedand

inactiveorOFFwhentheinputswitchisopen.

Warning–Onlymechanicalswitchesormechanicalclosuredevicesshould

beconnectedtotheinputs.Noexternalvoltageorotherelectricalsourceisto

beconnectedtotheinputs.



DigitalOutputs-Relays

Theoutputrelays(LabelledRLY1,RLY2andRLY3)arenormallyopencontactsthat

areratedatmaximumof2Amps.Therelaysareinternallyprotectedbysolidstate

snubbersforoperatingwithinductiveloads.

Warning–TheNewZealandandAustralianwiringregulationsrequirethat

anywiringinexcessof32voltsmustbecarriedout,orbecertifiedbya

registeredelectrician.Consultyourlocalelectricalinstallerforfurther

guidance.



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Qtech-data-systems Multi Point Controller (MPC) System Manuel d'utilisateur Page 8

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