Pilz PNOZ s50 - Page 11

Safety
OperatingManualPNOZs50
1002194EN02
11
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Toshutdowntheinductiveloadsafely,thefastshutdownmustbeactivatedafterthe
slowshutdown.Thatwaytheloadhasadualpoleshutdown.
Measurestopreventunexpectedstartup
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Appropriatemeasuresmustbetakentopreventunexpectedstartuporunexpected
movementsfromplantstandstill.
Wiringmeasures
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TheeffectivecurrentatterminalsB1/B2tosupplythepowercircuitsmustnotexceed
10A.Thecablesmustbefittedwitha10Afuse,characteristicB/C.
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Thecablesfortheunit'ssupplyvoltage(A1/A2)mustbefittedwitha4Afuse,charac
teristicB/C.
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Thewiringmustbedesignedtoachievesufficientnoiseimmunityandprotection
againstemissionsintermsofEMC.PleasealsorefertoDINEN602041(Electrical
equipmentofmachines).
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Appropriatewiringmeasuresshouldbetakentoavoidearthfaultsandshortsbetween
contacts.
Display
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Thecorrectdisplayofconfigurationdataandmessagesarepartofthedevice'ssafety
concept.Ifthedisplayisfaulty(e.g.pixelsaremissing,faultylettersornumbers),the
devicemustbetakenoutofservice.
Themachinemanufacturermustcheckandverifythefunctionalityoftheemployedsafety
functions.
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Thesafetyfunctionsmayonlybecheckedbyqualifiedpersonnel.
Thesafetyfunctionmustbechecked
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Afterinitialcommissioning
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Afterchangingtheconfigurationofthesafetyfunctions
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AfterswappingthePNOZs50orconnectedequipment
Afullcheckcomprises
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Properexecutionoftheemployedsafetyfunctions
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Inspectionoftheparameters
Theresultofthecheckoneachsafetyfunctionmustbedocumentedinatestreport.This
testreportmustbesigned.
Regularchecks
ThePNOZs50usesappropriateteststoguaranteethatitfunctionssafely(seechapteren
titled"Functiondescription",under"Outputtest").Itdoesnottesttheentiresafetyfunction.
Youshouldcheckthisatregularintervals.Theaimoftheseregularchecksistouncover
anychangestotheplant/machine,safetyfunctionsandambientconditions.Inparticular
youshouldregularlycheckthefunctionoftheconnectedbrake.
Youmustcomplywiththerequirementsoftheapplicablenationalregulations.
Theintervalsyouselectwilldependontheapplication,theoverallsystemandtheassoci
atedriskanalysis.