Input And Output Signals - ABB REC 561 User Manual

1MRK 580 171-XEN
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2.1 Input and output
signals
2.2 Start functions
Breaker-failure protection
Trip Logic
TRIPL1
TRIPL2
TRIPL3
TPTRIP
Fig. 4
The connectable inputs are connectable by configuration to the binary
inputs of the terminal or to other internal functions' outputs. The outputs
are connectable by configuration to the binary output relays. "Connecta-
bles" and "outputs" can be connected to the free-logic functions of the
unit, OR gates, and in that way add connection links.
Input signals:
BFP--STL1
BFP--STL2
BFP--STL3
BFP--ST3PH
Output signals:
BFP--BUTRIP
BFP--RETRIPL1 Trip breaker-failure phase L1
BFP--RETRIPL2 Trip breaker-failure phase L2
BFP--RETRIPL3 Trip breaker-failure phase L3
The breaker-failure protection can be started either internally or exter-
nally. The start pulse is sealed-in as long as the current exceeds the preset
current level, to prevent a restart of the BFP timers in case of a chattering
starting contact.
The preset current level may be set to (0,1 - 2,0)
External start
1
1
1
1

Input and output signals

Start of breaker-failure protection:
Phase L1
Phase L2
Phase L3
Three-phase start
Trip:
Back-up trip
ABB Network Partner AB
Version 1.0-00
Breaker-failure
protection
STL1
STL2
STL3
ST3PH
RETRIPL1
RETRIPL2
RETRIPL3
BUTRIP
.
Ir where Ir is 1 or 5 A.
(X80171-4)