ABB RELION REX640 - 3.20.18.7 Monitored data; 3.20.19 Current sum CMSUM (ANSI CSUM); 3.20.19.1 Identification; 3.20.19.2 Function block

Parameter Values (Range) Unit Step Default Description
1=Reset
Load counter
0=Cancel
1=Load
0=Cancel
Loads the counter to preset val-
ue
3.20.18.7 Monitored data
Table 273: UDFCNT Monitored data
Name Type Values (Range) Unit Description
CNT_VAL INT64 0...2147483647 Output counter
value
3.20.19 Current sum CMSUM (ANSI CSUM)
3.20.19.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Current sum CMSUM CSUM CSUM
3.20.19.2 Function block
Figure 158: Function block
3.20.19.3 Functionality
The current sum function CMSUM is a phase-by-phase specific summing function
for two current triplets. Output I3P can be used as normal current input for the
application functions using current. Different measurement modes (DFT, RMS, Peak-
to-peak) are supported. Also, positive, negative and zero-sequence components are
calculated for the summed currents. Output IRES provides the calculated residual
current based on the summed currents.
Example configuration:
1MRS759142 F
Basic functions
REX640
Technical Manual
283