Pilz PZE X4 24VDC 4n/o User Manual download pdf (Page 5)

PZEX4

OperatingManualPZEX4

1003199EN08

INFORMATION

Thisgivesadviceonapplicationsandprovidesinformationonspecialfea

tures.

Intendeduse

TheunitmeetstherequirementsofEN6094751,EN602041andVDE01131.Thecon

tactexpansionmoduleisusedtoincreasethenumberofinstantaneoussafetycontacts

availableonabaseunit.Baseunitsareallsafetyrelayswithfeedbackloopmonitoring.

ThecategorythatcanbeachievedinaccordancewithENISO138491dependsonthe

categoryofthebaseunit.Thecontactexpansionmodulemaynotexceedthis.

Foryoursafety

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Onlyinstallandcommissiontheunitifyouhavereadandunderstoodtheseoperating

instructionsandarefamiliarwiththeapplicableregulationsforhealthandsafetyatwork

andaccidentprevention.

EnsureVDEandlocalregulationsaremet,especiallythoserelatingtosafety.

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Anyguaranteeisrenderedinvalidifthehousingisopenedorunauthorisedmodifica

tionsarecarriedout.

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NoteforovervoltagecategoryIII:Ifvoltageshigherthanlowvoltage(>50VACor>120

VDC)arepresentontheunit,connectedcontrolelementsandsensorsmusthavea

ratedinsulationvoltageofatleast250V.

Unitfeatures

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Positiveguidedrelayoutputs:

– 4safetycontacts(N/O),instantaneous

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LEDdisplayfor:

– Switchstatuschannel1/2

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Connectionforfeedbackloop

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Operation:singlechannel

Safetyfeatures

Theunitmeetsthefollowingsafetyrequirements:

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Thecontactexpandermoduleexpandsanexistingcircuit.Astheoutputrelaysare

monitoredviathebaseunit'sfeedbackloop,thesafetyfunctionsontheexistingcircuit

aretransferredtothecontactexpandermodule.

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Thesafetyfunctionremainseffectiveinthecaseofacomponentfailure.

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Earthfaultinthefeedbackloop:

Detected,dependingonthebaseunitthatisused.

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Earthfaultintheinputcircuit:

Theoutputrelaysdeenergiseandthesafetycontactsopen.

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