Basler BE1-CDS220, Instruction Manual

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BE1-CDS220 Application 8-39
Function Purpose
BESTlogic
Expression
Mode Setting
50TP
Applied to bus main (CT 1). Normally for fast bus OC protection (2-4
cycle delay) as backup to 87. When in feeder relay backup mode,
provides near instantaneous for feeder. Block when feeder relay is
picked up indicating that the fault is on a feeder.
IN5 1 (CT Input 1)
50TN
Applied to bus main (CT 1). Normally for fast bus OC protection (2-4
cycle delay) as backup to 87. When in feeder relay backup mode,
provides near instantaneous for feeder. Block when feeder relay is
picked up indicating that the fault is on a feeder.
IN5 1 (CT Input 1)
50TQ
Applied to bus main (CT 1). Normally for fast bus OC protection (2-4
cycle delay) as backup to 87. When in feeder relay backup mode,
provides near instantaneous for feeder. Block when feeder relay is
picked up indicating that the fault is on a feeder.
IN5
1 (CT Input 1)
150TP
Applied to bus main (CT 1). Used for backup bus OC trip. 18-20
cycles delay (no feeder picked up interlock). Provides primary OC
protection when 50T elements are used for feeder relay backup.
0
1 (CT Input 1)
150TN
Applied to bus main (CT 1). Used for backup bus OC trip. 18-20
cycles delay (no feeder picked up interlock). Provides primary OC
protection when 50T elements are used for feeder relay backup.
0
1 (CT Input 1)
150TQ
Applied to bus main (CT 1). Used for backup bus OC trip. 18-20
cycles delay (no feeder picked up interlock). Provides primary OC
protection when 50T elements are used for feeder relay backup.
0
1 (CT Input 1)
GROUP
Auto/Manual Logic: Switch to setting group 1 if feeder relay is out of
service as indicated by closed contact from relay with BACKUP logic
such as BE1-851, BE1-951, or BE1-CDS220.
IN7 2 (Binary Inputs)
Table 8-24. BUS-W-BU Virtual Switch Logic
State Labels
Switch Purpose Mode Label
Closed Open
43
Used as differential cutoff. The 87 is blocked
when the switch is in the closed state.
2 (On/Off) 87-CUTOFF DISABLD NORMAL
743
Selects test mode so that reclosing and BF are
disabled when virtual switch is closed.
2 (On/Off)
TEST-
MODE-
TSTMODE NORMAL
101
Allows breaker to be tripped or closed manually
from HMI or ASCII command interface
1 (Enabled) N/A N/A N/A
Table 8-25. BUS-W-BU Output Logic
State Labels
Output Purpose Description Label
True False
VOA Relay Trouble alarm.
OUTA contact closes when relay
trouble alarm occurs.
RELAY-TROU ACTIVE NORMAL
BESTlogic Expression: VOA=0