9365200990 Rev F
BE1-CDS240 Application
8-41
Function Purpose
BESTlogic
Expression
Mode
Setting
50TN
Applied to bus main (CT 1). Normally for fast bus OC protection (2-4
cycles 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 (Circuit 1)
50TQ
Applied to bus main (CT 1). Normally for fast bus OC protection (2-4
cycles 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 (Circuit 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 (Circuit 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 (Circuit 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 (Circuit 1)
Input 0 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-CDS240.
IN7
Input 1 Logic:
No manual selection logic is used.
0
Input 2 Logic:
No manual selection logic is used.
0
Input 3 Logic:
No manual selection logic is used.
0
GROUP
Auto/Manual Logic:
No automatic selection.
0
2 (Binary
Inputs)
Table 8-28. CDS240-BSBU-A-BE Virtual Switch Logic
State Labels
Switch Purpose
Mode
Label
True False
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-
ENABLE
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 8-29. CDS240-BSBU-A-BE Virtual Output Logic
State Labels
Output Purpose
Description
Label
True False
VOA
Relay Trouble Alarm.
VOA TRUE if relay trouble alarm
occurs.
RELAY-
TROUBLE
ACTIVE NORMAL
BESTlogic Expression: VOA=0
Summary of Contents for BE1-CDS240
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Page 8: ...vi BE1 CDS240 Introduction 9365200990 Rev F This page intentionally left blank ...
Page 38: ...1 28 BE1 CDS240 General Information 9365200990 Rev F This page intentionally left blank ...
Page 40: ...ii BE1 CDS240 Quick Start 9365200990 Rev F This page intentionally left blank ...
Page 152: ...ii BE1 CDS240 Metering 9365200990 Rev F This page intentionally left blank ...
Page 226: ...iv BE1 CDS240 Application 9365200990 Rev F This page intentionally left blank ...
Page 286: ...ii BE1 CDS240 Security 9365200990 Rev F This page intentionally left blank ...
Page 290: ...9 4 BE1 CDS240 Security 9365200990 Rev F This page intentionally left blank ...
Page 292: ...ii BE1 CDS240 Human Machine Interface 9365200990 Rev F This page intentionally left blank ...
Page 306: ...10 14 BE1 CDS240 Human Machine Interface 9365200990 Rev F This page intentionally left blank ...
Page 308: ...ii BE1 CDS240 ASCII Command Interface 9365200990 Rev F This page intentionally left blank ...
Page 342: ...11 34 BE1 CDS240 ASCII Command Interface 9365200990 Rev F This page intentionally left blank ...
Page 349: ...Figure 12 5 Horizontal Rack Mount Front View 9365200990 Rev F BE1 CDS240 Installation 12 5 ...
Page 361: ...Figure 12 17 Typical DC Connection Diagrams 9365200990 Rev F BE1 CDS240 Installation 12 17 ...
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Page 468: ...13 92 BE1 CDS240 Testing and Maintenance 9365200990 Rev F This page intentionally left blank ...
Page 512: ...14 42 BE1 CDS240 BESTCOMS Software 9365200990 Rev F This page intentionally left blank ...
Page 544: ...ii BE1 CDS240 Terminal Communication 9365200990 Rev F This page intentionally left blank ...
Page 550: ...ii BE1 CDS240 Settings Calculations 9365200990 Rev F This page intentionally left blank ...
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