Excel 800 LION73 EN1B-0375GE51 R0308Service LED of I/O Modulescase Service LED Meaning Remedy1 LED remains OFF afterpower-upIf the power LED is also OFF, then– Defective device hardware– Possible power supply problems, clockproblems, defective processor► Replace hardware2 LED is lit continuously afterfirst power-up• LONWORKS Bus I/O modules:– Defective hardware• Panel Bus I/O modules:– I/O module has not yet been configuredby CLLIONLC01– Boot loader is active– Failure during last firmware download– Checksum errorLONWORKS Bus I/O modules:► Replace hardwarePanel Bus I/O modules:► Set the hex address to the position configuredwith CARE► Ensure that I/O Bus switch S2 of CLLIONLC01Controller is set to position "Panel"► Check the Panel Bus wiring:- Check for cable breaks- Check for cable short-circuits- If using separate transformers: Check groundconnection► Eliminate any mixture of Panel Bus I/Os andLonWorks I/Os on same wire► Allow CLLIONLC01 to configure I/O module► Unplug and replug the module► If problem persists, replace hardware3 Alternating flash betweenservice LED and power LEDPanel Bus I/O modules, only:Download error or application checksum error.Boot loader is running► Panel Bus I/O modules, only:Wait until rebooting (firmware download) hasbeen completed4 LED flashes at power up,goes OFF, and then is litcontinuouslyLONWORKS Bus I/O modules, only:LONWORKS Bus I/O module lacks application ► Download application5 LED repeatedly blinksON for 1 sec andOFF for 1 secLONWORKS Bus I/O modules, only:LONWORKS Bus I/O module is unconfigured, buthas an application► Set module to configured mode6 LED remains OFF after ashort ON durationI/O module is configured and running normally No action necessary7 LED flashes continuously infollowing pattern:4 x ON/OFF followed bypauseSensor failure of analog input module(in case of LONWORKS Bus I/O modules, thisbehavior can occur only if the appropriate NVhas been bound)► Check sensor or connection► Check sensor configuration8 LED flashes continuously infollowing pattern:5 x ON/OFF followed bypauseLONWORKS Bus I/O modules, only: LONWORKSI/O Bus module has received the winkcommand from network, physical outputs areunaffectedNo action necessary9 LED flashes continuously infollowing pattern:6 x ON/OFF followed bypauseBoot loader problem or hardware defect ► Replace hardware10 LED flashes continuously infollowing pattern:7 x ON/OFF followed bypauseCommunications failure ► Check bus wiring► Ensure that I/O Bus switch S2 of CLLIONLC01Controller is set to correct position► Ensure that LONWORKS Bus I/O modules andPanel Bus I/O modules are not sharing samebus► In case of Panel Bus I/O modules, only:Check for incorrect HEX addresses (2 Panel BusI/O modules using same HEX address)► In case of LONWORKS Bus I/O modules, only:Check heartbeatTable 75 Service LED of I/O modules