Signals; Signal Designations - ABB RELION REB500 Operation Manual

1MRK 505 400-UEN B
Section 3
3.1

Signal designations

The REB500 configuration assigns the signals to predefined inputs and outputs. Signals are
designated according to the following convention:
Table 1:
Category
Bay unit
Central unit
General signals
Busbar protection signals
Breaker failure signal
End fault protection signal
Time-overcurrent protection signal
Disturbance recorder signal
Circuit-breaker pole discrepancy protection signal
Low-voltage check feature
Input
Output
Internal system signal
Table 2:
Function
Busbar protection
Breaker failure protection
End fault protection
Time-overcurrent protection
Disturbance recorder
Circuit-breaker pole discrepancy protection
Low-voltage check feature
A signal designation consists of a five digit signal number and a signal label, for example,
37205 Block PDF.
Table 3:
Digit 1
Category
1 Input on Bay unit
2 Output on Bay unit
3 Input on Central
unit
Table continues on next page
Distributed busbar protection REB500
Technical manual

Signals

Abbreviations used for different signal texts
Abbreviations used for various functions
Signal numbers nomenclature
Digit 2
Protection function
0 INT
1 SYS
2 BBP
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GUID-94D71C4D-4DF1-4966-ABD6-AC68BE63A7CB v2
GUID-94F39517-0B09-41CF-A9C0-C233AA43A91E v2
Abbreviation
BU_
CU_
SYS_
BBP_
BFP_
EFP_
OCDT_
DR_
PDF_
UV_
I
O
SYS_INT
Abbreviation
BBP
BFP
EFP
OCDT
DR
PDF
UV
Digit 3
Signal function
1 TRIP
2 Block command
3 Tripping Signal
Section 3
Signals
Digit 4, 5
Sequence number
05
10
15
7