Pilz PZE x4p - Intended Use and Safety; For Your Safety; Unit Features; Safety Features

PZEX4P
OperatingManualPZEX4P
1003201EN08
5
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.
}
Anyguaranteeisrenderedinvalidifthehousingisopenedorunauthorisedmodifica
tionsarecarriedout.
}
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
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Pluginconnectionterminals(eitherspringloadedterminalorscrewterminal)
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Seeorderreferenceforunittypes
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.
}
Thesafetyfunctionremainseffectiveinthecaseofacomponentfailure.
}
Earthfaultinthefeedbackloop:
Detected,dependingonthebaseunitthatisused.