ABB RER620, Technical Manual

Page: 228 / 584

Section 4
1MAC309294-MB F
Protection functions
222 RER620
Technical Manual
Table 237: 81 Output signals
4.4.1.7 Settings
Table 238: 81 Group settings
Table 239: 81 Non group settings
4.4.1.8 Monitored Data
Table 240: 81 Monitored data
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
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> 0.900...1.200 xFn 0.001 1.050 Frequency start value overfrequency
Start value Freq< 0.800...1.100 xFn 0.001 0.950 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
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
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Start duration
ST_DUR_OFRQ FLOAT32 0.00...100.00 % Start duration
ST_DUR_UFRQ FLOAT32 0.00...100.00 % Start duration
ST_DUR_FRG FLOAT32 0.00...100.00 % Start duration
FRPFRQ Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Status