Beckhoff CX2020 User Manual download pdf (Page 41)

Errorhandlinganddiagnostics

Errorcodeargument

ThenumberofpulsesindicatesthepositionofthelastBusTerminalbeforethefault.PassiveBusTerminals,

suchasapowerfeedterminal,arenotincludedinthecount.

Inthecaseofsomeerrors,rectificationdoesnotcausethepowersupplytoleavetheblinksequence.The

powersupplycanonlyberestartedbyswitchingitssupplyvoltageoffandonagain.

5.1.3 LEDsofthepowersupplyunit(CX21000xx4)inE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.

L/A off Ebusnotconnected

on Ebusconnected/nodatatraffic

flashing Ebusconnected/datatrafficontheEbus.

CX2020,CX2030,CX2040 41Version1.2

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Beckhoff CX2020 User Manual Page 41