ABB RELION 650 SERIES, Technical Manual

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SEMOD54997-4 v10
SMAI2
BLOCK
REVROT
^GRP2L1
^GRP2L2
^GRP2L3
^GRP2N G2AI3P
G2AI1
G2AI2
G2AI3
G2AI4
G2N
IEC14000028-1-en.vsd
IEC14000028 V1 EN-US
Figure 392: SMAI2 function block
Figure 392 is an example of SMAI2:n to SMAI12:m in each of the three task time
groups 1, 2 or 3 where:
• n=2 and m=12 in task group 1
• n=14 and m=24 in task group 2
• n=26 and m=36 in task group 3
The task time defines the execution repetition rate and is 3, 8 or 1 ms, respectively,
for the three task time groups.
19.8.3 Signals
SEMOD55773-1 v2
PID-3405-INPUTSIGNALS v6
Table 612: SMAI1 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
GRP1L1 STRING - First analog input used for phase L1 or L1-L2
quantity
GRP1L2 STRING - Second analog input used for phase L2 or L2-L3
quantity
GRP1L3 STRING - Third analog input used for phase L3 or L3-L1
quantity
GRP1N STRING - Fourth analog input used for residual or neutral
quantity
PID-3405-OUTPUTSIGNALS v5
Table 613: SMAI1 Output signals
Name Type Description
SPFCOUT REAL Number of samples per fundamental cycle from
internal DFT reference function
G1AI3P GROUP SIGNAL Group 1 analog input 3-phase group
G1AI1 GROUP SIGNAL Group 1 analog input 1
G1AI2 GROUP SIGNAL Group 1 analog input 2
Table continues on next page
1MRK 506 382-UEN A
Section 19
Basic IED functions
Line distance protection REL650 2.2 IEC 821
Technical manual