4.6.1.7 Signals
FRPFRQ Input signals
Table 883: FRPFRQ Input signals
Name Type Default Description
U3P SIGNAL - Three-phase voltages
BLOCK BOOLEAN 0=False Block signal for acti-
vating the blocking
mode
FRPFRQ Output signals
Table 884: FRPFRQ Output signals
Name Type Description
OPERATE BOOLEAN Operate
OPR_OFRQ BOOLEAN Operate signal for overfre-
quency
OPR_UFRQ BOOLEAN Operate signal for underfre-
quency
OPR_FRG BOOLEAN Operate signal for frequency
gradient
START BOOLEAN Start
ST_OFRQ BOOLEAN Start signal for overfrequency
ST_UFRQ BOOLEAN Start signal for underfre-
quency
ST_FRG BOOLEAN Start signal for frequency
gradient
4.6.1.8 FRPFRQ Settings
Table 885: FRPFRQ Group settings (Basic)
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 protec-
tion operation
mode selection
Start value Freq> 0.9000...1.2000 xFn 0.0001 1.0500 Frequency start val-
ue overfrequency
Start value Freq< 0.8000...1.1000 xFn 0.0001 0.9500 Frequency start val-
ue underfrequency
Table continues on the next page
Protection functions 1MRS759142 F
926 REX640
Technical Manual
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