Basler Electric BE1-851 - Manual (Page 196)

Output Purpose Description Label
State Labels
True False
VO5
(OUT5)
Breaker failure trip
contact.
Trip backup if breaker failure
protection times out.
BKR_FAIL TRIP NORMAL
BESTlogic Expression: VO5=BFT
VO6 N/A N/A VO6 TRUE FALSE
BESTlogic Expression: VO6=0
VO7 N/A N/A VO7 TRUE FALSE
BESTlogic Expression: VO7=0
VO8
Reclose initiate
expression.
Allow reclose when the
recloser is not disabled. To
operate, reclose must be
enabled by IN2 and Virtual
Switch 143 and virtual breaker
control switch slip contact.
RCL_INI INI NORMAL
BESTlogic Expression: VO8=IN2*/143*101SC
VO9
Recloser drive to lockout
expression.
Drive recloser to lockout to
disable it if the breaker fails.
RCL_DTL DTL NORMAL
BESTlogic Expression: VO9=VO5
VO10
Breaker failure initiate
expression.
Initiate breaker failure timing
when protective trip expression
is TRUE or when external
initiate contact is sensed and
any of the fault detectors is
picked up.
BFI INI NORMAL
BESTlogic Expression: VO10=VO11+IN3*150TPPU+IN3*150TNPU+IN3*150TQPU
VO11
Protective Trip
Expression.
TRUE when any 50, 150, or 51
element times out.
PROT_TRIP TRIP NORMAL
BESTlogic Expression: VO11=50TPT+50TNT+50TQT+150TPT+150TNT+150TQT+51PT+51NT+51QT
VO12
Protection Picked Up
Expression.
TRUE when any 50, 150, or 51
element picks up.
PROT_PU PU NORMAL
BESTlogic Expression:
VO12=50TPPU+50TNPU+50TQPU+150TPPU+150TNPU+150TQPU+51PPU+51NPU+51QPU
VO13 N/A N/A VO13 TRUE FALSE
BESTlogic Expression: VO13=0
VO14 N/A N/A VO14 TRUE FALSE
BESTlogic Expression: VO14=0
VO15
The relay is in test mode,
breaker failure is
disabled, and reclosing is
disabled.
TRUE if IN4 is de-energized or
if Virtual Switch 343 is closed.
TEST_MODE TEST NORMAL
BESTlogic Expression: VO15=/IN4+343
8-40 BE1-851 Application 9289900990 Rev R