ABB Relion 670 series - Page 687

10.4.4 Signals
PID-3229-INPUTSIGNALS v9
Table 397: FTAQFVR (81A) Input signals
Name Type Default Description
I3P GROUP
SIGNAL
- Group signal for three phase current
V3P GROUP
SIGNAL
- Group signal for three phase voltage
BLOCK BOOLEAN 0 Block of function
CBCLOSE BOOLEAN 0 Circuit breaker closed status input
CBOPEN BOOLEAN 0 Circuit breaker open status input
LOADINIT BOOLEAN 0 Loads the initial accumulation time to the function
HOLDACC BOOLEAN 0 Holds the time accumulation when input is activated
RESETACC BOOLEAN 0 Resetting the accumulated time of the function block
PID-3229-OUTPUTSIGNALS v9
Table 398: FTAQFVR (81A) Output signals
Name Type Description
ERROR BOOLEAN Error output for incorrect settings
TRIP BOOLEAN Trip signal of the function
TRIPACC BOOLEAN Trip signal when accumulation time is exceeded the set limit
TRIPCONT BOOLEAN Trip signal when continuous time is exceeded the set limit
BFI_3P BOOLEAN Pickup signal of the function
ACCALARM BOOLEAN Alarm signal for reaching the frequency time accumulation value
STRORHLD BOOLEAN Activated when function starts or HOLDACC input is active
FREQOK BOOLEAN Indicates the system frequency within the frequency band limits
VOLTOK BOOLEAN Indicates the system voltage within the voltage band limits
10.4.5 Settings
PID-3229-SETTINGS v9
Table 399: FTAQFVR (81A) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable operation of the function
tContinuous 0.0 - 6000.0 s 0.1 20.0 Continuous time limit for frequency band
limits
tAccLimit 10.0 - 90000.0 s 0.1 600.0 Accumulation time limit for frequency
band limits
FreqHighLimit 35.00 - 90.00 Hz 0.01 47.50 Frequency High limit value
FreqLowLimit 30.00 - 85.00 Hz 0.01 47.00 Frequency Low limit value
Table continues on next page
1MRK 502 066-UUS B Section 10
Frequency protection
681
Technical manual