Basler BE1-CDS220, Instruction Manual

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BE1-CDS220 Application 8-41
State Labels
Output Purpose Description Label
True False
VO9
Intermediate logic
expression for 50T and 51
Trip. Used for bus OC trip in
normal mode or for feeder
relay backup trip in feeder
backup mode.
TRUE for any primary OC trip
(50T or 51).
50T-51-TRI TRUE FALSE
BESTlogic Expression: VO9=50TPT+50TNT+50TQT+51PT+51NT+51QT
VO10
Intermediate logic expression
for 150T Trip. Used for
backup bus OC trip.
TRUE for any backup
overcurrent trip (150T or 151).
150T-151-T TRUE FALSE
BESTlogic Expression: VO10=151PT+151NT+151QT
VO11 Protective trip expression
TRUE when any 87, 250T, 51,
151 or 251 element has timed
out.
PROTECTIVE TRIP NORMAL
BESTlogic Expression: VO11=87RT+50TPT+50TNT+50TQT+51PT+51NT+51QT+
151PT+151NT+151QT
VO12
Protective pickup
expression.
None PROT-PICKE PU NORMAL
BESTlogic Expression: VO12=87RPU+51PPU+51NPU+51QPU+
151QPU
VO13
Alarm to indicate that the
differential cutoff switch is in
the block operation position.
TRUE if virtual switch 43 is in
the closed position.
87-BLOCKED ACTIVE NORMAL
BESTlogic Expression: VO13=43
VO14
Alarm that relay is in feeder
backup mode.
TRUE if in setting group 1. FDR-BU-ENA BACKUP NORMAL
BESTlogic Expression: VO15=SG1
VO15
Alarm bit #23 indication that
the relay is in test mode and
that breaker failure is
disabled
TRUE if IN8 is de-energized or if
virtual switch 743 is closed.
TEST_ MODE TEST NORMAL
BESTlogic Expression: VO15=/IN8+743
MOTOR PROTECTION LOGIC
The Motor Protection (MOTOR) scheme provides high-speed differential and multiple layers of
instantaneous and time overcurrent protection for large motors. This scheme protects against stator phase
and ground faults, locked rotor, jam, thermal overload, and unbalanced current. Basic frequent starting
protection is also provided. Virtual control switch logic is used for local or remote control and can be used
to replace the equivalent panel control switches.