4.6.1.6 Signals
Table 424: FRPFRQ Input signals
Name Type Default Description
F SIGNAL 0 Measured frequency
dF/dt SIGNAL 0 Rate of change of frequency
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
Table 425: FRPFRQ Output signals
Name Type Description
OPERATE BOOLEAN Operate
OPR_OFRQ BOOLEAN Operate signal for overfrequency
OPR_UFRQ BOOLEAN Operate signal for underfrequency
OPR_FRG BOOLEAN Operate signal for frequency gradient
START BOOLEAN Start
ST_OFRQ BOOLEAN Start signal for overfrequency
ST_UFRQ BOOLEAN Start signal for underfrequency
ST_FRG BOOLEAN Start signal for frequency gradient
4.6.1.7 Settings
Table 426: FRPFRQ Group settings
Parameter
Values (Range) Unit Step Default Description
Operation mode 1=Freq<
2=Freq>
3=df/dt
4=Freq< + df/dt
5=Freq> + df/dt
6=Freq< OR df/dt
7=Freq> OR df/
dt
1=Freq< Frequency protection operation mode
selection
Start value Freq> 0.9000...1.2000 xFn 0.0001 1.0500 Frequency start value overfrequency
Start value Freq< 0.8000...1.1000 xFn 0.0001 0.9500 Frequency start value underfrequency
Start value df/dt -0.200...0.200 xFn /s 0.005 0.010 Frequency start value rate of change
Operate Tm Freq 80...200000 ms 10 200 Operate delay time for frequency
Operate Tm df/dt 120...200000 ms 10 400 Operate delay time for frequency rate of
change
Table 427: FRPFRQ Non group settings
Parameter
Values (Range) Unit Step Default Description
Operation 1=on
5=off
1=on Operation Off / On
Reset delay Tm Freq 0...60000 ms 1 0 Reset delay time for frequency
Reset delay Tm df/dt 0...60000 ms 1 0 Reset delay time for rate of change
1YHT530004D05 D Section 4
Protection functions
615 series 501
Technical Manual
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