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Errorhandlinganddiagnostics

5.2 LEDsofthepowersupplyunit(CX21000xx4)inKbus

mode

Afterswitchingon,thepowersupplyimmediatelycheckstheconnectedBusTerminalconfiguration.IfKbus

terminalsaredetected,theerrorfreebootupissignaledbythered“I/OERRLED”goingout.Ifthe“I/OERR”

LEDblinks,anerrorintheareaoftheterminalsisindicated.Theerrorcodecanbedeterminedfromthe

frequencyandnumberofblinks.Thispermitsrapidrectificationoftheerror.

Display LED Meaning

Us24V PowersupplyfortheCPUmodule.TheLEDlights

greenifthepowersupplyiscorrect.

Up24V Powersupplyforterminalbus.TheLEDlightsgreenif

thepowersupplyiscorrect.

KBUS

RUN

Kbusdiagnostics.ThegreenLEDlightsupinorderto

indicatefaultfreeoperation."Faultfree"meansthat

thecommunicationwiththefieldbussystemisalso

running.

KBUS

ERR

Kbusdiagnostics.TheredLEDflashestoindicatean

error.TheredLEDblinkswithtwodifferent

frequencies.

Table1:TheI/OerrorLEDblinkcode

fastblinking Startoftheerrorcode

Firstslowsequence Errorcode

Secondslowsequence Errorcodeargument

CX210000x4 37Version1.0

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Beckhoff CX2100­00x4 Bedienungsanleitung Seite 37