Beckhoff CX2020 Manuel d'utilisateur télécharger pdf (Page 26)

Mountingandwiring

Wiresizewidth 0.5...2.5mm

AWG20..AWG14

Wirestrippinglength 8...9mm 0.33inch

LED

Ifthepowersupplyunitisconnectedcorrectlyandthepowersupplyisswitchedon,thetwoupperLEDsin

theterminalprismaregreen.TheleftLED(Us)indicatestheCPUsupply.TherightLED(Up)indicatesthe

terminalsupply.TheotherLEDsindicatetheTerminalBusstatus.AdetaileddescriptionoftheLEDscanbe

foundinsection“LEDtroubleshooting”.

PEpowercontacts

Attention

Powerkontakt"PE"

The“PE”powercontactmustnotbeusedforotherpotentials."PE"und"0V"(24VCXSys

temsupply)havetobeonthesamepotential.(connectedinthecabinet)DerPowerkontakt

"PE"darfnichtfüranderePotentialeverwendetwerden."PE"und"0V"(24VSystemver

sorgung)müssenaufdemgleichenPotentialliegen.(imSchaltschrankverbunden)The

wiringthecabinethastofollowtheNormENEN602041:2006:SafetyofmachineryElec

tricalequipmentofmachines(PELV=ProtectiveExtraLowVoltage)EN602041:2006

chapter6.4.1:b):Onesideofthecircuitorapointoftheenergysourceofthecircuitmust

beconnectedtoprotectiveearthsystem

Attention

Interruptpowersupply/switchingoff

Ifthepowersupplyshouldbedisconnectedthe"0V"mustnotbedisconnected.Alwaysdis

connectthe“24V”wirefirst.Otherwisetherecanbeelectricalcurrentflowviatheshield.

Possiblyconnecteddeviceswithownpowersupply(e.g.panel)musthavethesameelec

tricalpotentialfor"PE"and"GND"astheCXunit.OtherwisetheCXunitand/orthecon

necteddevicecanbedamaged.

CX2020,CX2030,CX204026 Version1.2

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Beckhoff CX2020 Manuel d'utilisateur Page 26