4.6.1.6 SignalsTable 424:FRPFRQ Input signalsName Type Default DescriptionF SIGNAL 0 Measured frequencydF/dt SIGNAL 0 Rate of change of frequencyBLOCK BOOLEAN 0=False Block signal for activating the blocking modeTable 425:FRPFRQ Output signalsName Type DescriptionOPERATE BOOLEAN OperateOPR_OFRQ BOOLEAN Operate signal for overfrequencyOPR_UFRQ BOOLEAN Operate signal for underfrequencyOPR_FRG BOOLEAN Operate signal for frequency gradientSTART BOOLEAN StartST_OFRQ BOOLEAN Start signal for overfrequencyST_UFRQ BOOLEAN Start signal for underfrequencyST_FRG BOOLEAN Start signal for frequency gradient4.6.1.7 SettingsTable 426:FRPFRQ Group settingsParameter Values (Range) Unit Step Default DescriptionOperation mode 1=Freq<2=Freq>3=df/dt4=Freq< + df/dt5=Freq> + df/dt6=Freq< OR df/dt7=Freq> OR df/dt1=Freq< Frequency protection operation modeselectionStart value Freq> 0.9000...1.2000 xFn 0.0001 1.0500 Frequency start value overfrequencyStart value Freq< 0.8000...1.1000 xFn 0.0001 0.9500 Frequency start value underfrequencyStart value df/dt -0.200...0.200 xFn /s 0.005 0.010 Frequency start value rate of changeOperate Tm Freq 80...200000 ms 10 200 Operate delay time for frequencyOperate Tm df/dt 120...200000 ms 10 400 Operate delay time for frequency rate ofchangeTable 427:FRPFRQ Non group settingsParameter Values (Range) Unit Step Default DescriptionOperation 1=on5=off1=on Operation Off / OnReset delay Tm Freq 0...60000 ms 1 0 Reset delay time for frequencyReset delay Tm df/dt 0...60000 ms 1 0 Reset delay time for rate of change1YHT530004D05 D Section 4Protection functions615 series 501Technical Manual
