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 301:
SMAI2 function block
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.
16.8.3
Signals
SEMOD55773-1 v2
PID-3405-INPUTSIGNALS v6
Table 524:
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 525:
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
Section 16
1MRK 505 384-UEN A
Basic IED functions
668
Breaker protection REQ650 2.2 IEC
Technical manual
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