Basler BE1-CDS220, Instruction Manual, Page: 216 / 476

8-38 Application BE1-CDS220
Table 8-22. BUS-W-BU Contact Input Logic
State Labels
Input Purpose Name Label
Closed Open
IN1
Optional input. Used for CT input circuit 1 breaker status
indication in SER reports. TRUE when breaker closed.
BREAKER-1 CLOSED OPEN
IN3
Used for 86 status indication in SER reports. TRUE when
Transformer 86 tripped. Also blocks virtual breaker close switch
close until 86 is reset.
86T-TRIPPED TRIPPED NORMAL
IN4
Optional input. Used for 86B status indication and locks out the
low-side breaker when TRUE. TRUE when 86B is tripped.
86B-TRIPPED TRIPPED NORMAL
IN5
Block instantaneous when feeder relay is picked up. Feeder
relays such as BE1-851 or BE1-951 using one of the
preprogrammed schemes with interlock logic.
FDR-RLY-
PICKEDUP
PICKDUP NORMAL
IN7
Signal from relay on bus source that is using BACKUP logic that a
feeder relay is out of service. BE1-851, BE1-951, or BE1-CDS220
using preprogrammed logic scheme BACKUP.
BACKUP-
FDR-RELAY
BACKUP NORMAL
IN8
Puts the relay in test mode so that breaker failure is disabled
when input 8 is de-energized. TEST-MODE-
DISABL
NORMAL TSTMODE
Table 8-23. BUS-W-BU Function Block Logic
Function Purpose
BESTlogic
Expression
Mode Setting
87
Used for percent-restrained differential protection with high-speed
unrestrained instantaneous differential protection. Differential
function is blocked when virtual switch 43 is TRUE.
43 1 (Enabled)
51P
Applied to bus main (CT 1). Normally for bus time OC protection
coordinated with feeder relay time OC. When in feeder relay backup
mode, provides primary time OC protection for feeder. SG1 settings
must coordinate with other feeder 51 elements.
0 1 (CT Input 1)
51N
Applied to bus main (CT 1). Normally for bus time OC protection
coordinated with feeder relay time OC. When in feeder relay backup
mode, provides primary time OC protection for feeder. SG1 settings
must coordinate with other feeder 51 elements.
0 1 (CT Input 1)
51Q
Applied to bus main (CT 1). Normally for bus time OC protection
coordinated with feeder relay time OC. When in feeder relay backup
mode, provides primary time OC protection for feeder. SG1 settings
must coordinate with other feeder 51 elements.
0 1 (CT Input 1)
151P
Applied to bus main (CT 1). Used for backup bus time OC trip.
Provides primary time OC protection when 51 elements are used for
feeder relay backup.
0 1 (CT Input 1)
151N
Applied to bus main (CT 1). Used for backup bus time OC trip.
Provides primary time OC protection when 51 elements are used for
feeder relay backup.
0 1 (CT Input 1)
151Q
Applied to bus main (CT 1). Used for backup bus time OC trip.
Provides primary time OC protection when 51 elements are used for
feeder relay backup.
0 1 (CT Input 1)