Danfoss VLT AutomationDrive FC 360 Quick Manual

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6 Warnings and Alarms6.1 System MonitoringThe frequency converter monitors the condition of itsinput power, output, and motor factors as well as othersystem performance indicators. A warning or alarm maynot necessarily indicate a problem internal to thefrequency converter itself. In many cases, it indicates failureconditions from input voltage, motor load or temperature,external signals, or other areas monitored by the frequencyconverter’s internal logic. Be sure to investigate those areasexterior to the frequency converter as indicated in thealarm or warning.6.2 Warning and Alarm Types6.2.1 WarningsA warning is issued when an alarm condition is impendingor when an abnormal operating condition is present andmay result in the frequency converter issuing an alarm. Awarning clears by itself when the abnormal condition isremoved.6.2.2 Alarm Trip vs. Alarm Trip LockAn alarm is issued when the frequency converter istripped, that is, the frequency converter suspendsoperation to prevent frequency converter or systemdamage. The motor will coast to a stop. The frequencyconverter logic will continue to operate and monitor thefrequency converter status. After the fault condition isremedied, the frequency converter can be reset. It willthen be ready to start operation again.A trip can be reset in any of 4 ways:• Press [Reset]• Digital reset input command• Serial communication reset input command• Auto resetVery serious faults cause alarms with trip lock whichrequire that input power be cycled before resetting thealarm in any of the 4 ways described above.6.3 Warning and Alarm DisplaysSetup 1Status QuickMenuMainMenu130BD111.10Illustration 6.1 Warning and Alarm DisplaysAn alarm or trip-lock alarm will flash on display along withthe alarm number.Setup 1Status QuickMenuMainMenu130BD112.10Illustration 6.2 Alarm/Trip Lock AlarmIn addition to the text and alarm code on the frequencyconverter display, there are three status indicator lights.130BD113.10OffReset AutoOnHandOnOKBackIllustration 6.3 Status Indicator LightsWarnings and Alarms VLT® AutomationDrive FC 360 Quick GuideMG06A302 - VLT® is a registered Danfoss trademark 316 6