GE D25 User Manual

Contents

GE Grid Solutions D25User's ManualGE Information 994-0081-3.00-21 145Run-time and Startup Problems, ContinuedSymptom Possible Causes SuggestionsQueued RequestsClearedControls Switch is in the Localposition. D25 Plant I/O Subsystemmonitoring detects that the supplyvoltage is not available.The D25 Plant I/O Subsystemmonitoring detects a conflictbetween desired and actual coilstatus (a coil is not energized whenit should be).Move the Controls Switchto the Local position.Verify supply voltagesource.Verify coil status.System Hangs Watchdog failurePlant I/O WatchdogFailurePlant I/O Subsystem integrity isfaulty.Remove and restorepower to the D25.Digital Output Pointsare DisabledThe Local/Remote switch is in theLocal position.Move the Local/Remoteswitch to the Remoteposition.Digital Input Points DoNot RegisterIncorrect wiring, Protection fuse isblownVerify wiring, verify fuse isin place and is in goodconditionCommunication WatchDog FailureInternal system monitors detectserious errors.D25 Does Not OperateRemotelyThe Local/Remote switch is in theRemote position, but the D25 doesnot contain a Digital output Card, orthe Digital output Card malfunctions.Verify that a Digital outputCard is installed.Verify that the Digitaloutput Card functionscorrectly.Coil Status Check The D25 Plant I/O Subsystemmonitoring detects a conflictbetween desired and actual coilstatus.Verify coil status.Control Voltage NotAvailableOutput has failed.Hardware Watchdog Digital output coils are not in thestate requested by the softwarePlant I/O Subsystem failureDigital Output Failure Control voltage not available, coilstatus check, hardware watchdogerror condition, or protection fuse isblownRAM Check Failure System start-up fails Use WESMAINT II+ toview the error message.NVRAM Check Failure System start-up fails Use WESMAINT II+ toview the error message.Application ChecksumFailureSystem start-up fails Use WESMAINT II+ toview the error message.BootROM ChecksumFailureSystem start-up fails Use WESMAINT II+ toview the error message.