15.9.4 Signals
Table 508: SMAI_20_1 Input signals
Name
Type Default Description
BLOCK BOOLEAN 0 Block group 1
DFTSPFC REAL 20.0 Number of samples per fundamental cycle used for DFT
calculation
REVROT BOOLEAN 0 Reverse rotation group 1
GRP1_A STRING - First analog input used for phase L1 or L1-L2 quantity
GRP1_B STRING - Second analog input used for phase B or BC quantity
GRP1_C STRING - Third analog input used for phase C or CA quantity
GRP1_N STRING - Fourth analog input used for residual or neutral quantity
Table 509: SMAI_20_1 Output signals
Name Type Description
SPFCOUT REAL Number of samples per fundamental cycle from internal
DFT reference function
AI3P GROUP SIGNAL Grouped three phase signal containing data from inputs
1-4
AI1 GROUP SIGNAL Quantity connected to the first analog input
AI2 GROUP SIGNAL Quantity connected to the second analog input
AI3 GROUP SIGNAL Quantity connected to the third analog input
AI4 GROUP SIGNAL Quantity connected to the fourth analog input
AIN GROUP SIGNAL Calculated residual quantity if inputs 1-3 are connected
Table 510: SMAI_20_12 Input signals
Name
Type Default Description
BLOCK BOOLEAN 0 Block group 12
REVROT BOOLEAN 0 Reverse rotation group 12
GRP12_A STRING - First analog input used for phase L1 or L1-L2 quantity
GRP12_B STRING - Second analog input used for phase B or BC quantity
GRP12_C STRING - Third analog input used for phase C or CA quantity
GRP12_N STRING - Fourth analog input used for residual or neutral quantity
Section 15 1MRK 511 287-UUS A
Basic IED functions
610
Technical manual
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