PreFaultRecTTimeLimitPostFaultRecTen05000487.vsd1 2 3Trig pointIEC05000487 V1 ENFigure 300: The recording times definitionPreFaultRecT, 1 Pre-fault or pre-trigger recording time. The time before the fault including the operate timeof the trigger. Use the settingPreFaultRecT to set this time.tFault, 2 Fault time of the recording. The fault time cannot be set. It continues as long as any validtrigger condition, binary or analog, persists (unless limited byTimeLimit the limit time).PostFaultRecT, 3 Post fault recording time. The time the disturbance recording continues after all activatedtriggers are reset. Use the settingPostFaultRecT to set this time.TimeLimit Limit time. The maximum allowed recording time after the disturbance recording wastriggered. The limit time is used to eliminate the consequences of a trigger that does notreset within a reasonable time interval. It limits the maximum recording time of a recordingand prevents subsequent overwriting of already stored disturbances. Use the settingTimeLimit to set this time.14.4.6.10 Analog signalsUp to 40 analog signals can be selected for recording by the Disturbance recorder andtriggering of the Disturbance report function. Out of these 40, 30 are reserved for externalanalog signals from analog input modules via preprocessing function blocks (SMAI) andsummation block (3PHSUM). The last 10 channels may be connected to internallycalculated analog signals available as function block output signals (phase differentialcurrents, bias currents and so on).Section 14 1MRK 506 335-UUS AMonitoring640Technical manual
