SG2 EXTENDED Instruction Manual387.2. Diagnostic messagesThe operator is able to check the main causes of the system stop and failure, using the same LEDsused for visualising the functions.For Receiver:Function Status Meaning LED DIGITAlignment See chapter.5TEST(red ON)Light curtain being tested, the OSSD status mustbe OFFEmission(OSSD ON)(green ON)Light curtain working and in normal operationconditionsInterruption(OSSD OFF)(red ON)Light curtain working and in safety blockconditions.InterlockBeams free(red ONyellow ON)Interlock curtain waiting for restart. OSSD statusmust be OFFInterlockBeamsinterrupted(red ONyellow ON)Light curtain interlocked, OSSD status must beOFFSignal levelMinimum (1 bar)Medium (2 bar)Maximum (3 bar)NormaloperationEDM enabled EDM function is selectedFunction Type Check and repair LED DIGITOSSD error(red ON)Check OSSD connections. Make sure that theyare not in contact with one another or with thesupply cables, then Reset. If the failure continuescontact DATALOGIC AUTOMATIONInternal error(red ON)Switch OFF and switch ON the power supplycircuit. If the failure continues contactDATALOGIC AUTOMATIONOptical error(red ON)Reset. If the failure continues contactDATALOGIC AUTOMATIONEDM error(red ON)Check EDM connections and lines. If the failurecontinues contact DATALOGIC AUTOMATIONErrorstatusRestart selectionerror(red ON)Check the man/auto restart connection. If thefailure continues contact DATALOGICAUTOMATION