BE1-951
Application
8-17
Table 8-9. OC-W-CTL Contact Sensing Input Logic
Input
Purpose
Variable Label
State Labels
Closed (1)
Open (0)
IN1
51b breaker status (TRUE when breaker is open).
Used for breaker status indication in Sequence of
Events Reports, recloser control, and breaker
monitoring
BREAKER
OPEN
CLOSED
IN2
Reclosing Drive to Lockout. Drives recloser to lockout
when de-energized. Can be used with an external
switch to disable the recloser. If IN2 is not used, it
must be strapped high to enable the recloser.
RCL_DTL
NORMAL
DTL
IN3
Reclosing initiate used to initiate reclosing by external
protective relays.
RCL_INI
INI
NORMAL
IN4
When IN4 is energized, Neutral, Negative Sequence,
50 and 51 protection is enabled. IN4 must be tied
HIGH if this feature is not used.
N&Q_ENABLE
ENABLED
DISABLED
Table 8-10. OC-W-CTL Function Block Logic
Function
Purpose
BESTlogic
Expression
Mode Setting
50TP
Block when recloser sequence controlled blocking
output is TRUE.
79SCB
1
(enabled)
50TN
Block when recloser sequence controlled blocking
output is TRUE or when disabled by IN4 or virtual switch
243.
79SCB+/IN4+243
1
(3-Phase
Residual)
50TQ
Block when recloser sequence controlled blocking
output is TRUE or when disabled by IN4 or virtual switch
243.
79SCB+/IN4+243
1
(enabled)
150TP
Used for high set
0
1 (enabled)
150TN
Used for high set
0
1 (enabled)
150TQ
Used for high set
0
0 (enabled)
51P
Not used
0
1 (enabled)
51N
Block when disabled by IN4 or virtual switch 243.
/IN4+243
1 (3-Phase
Residual)
51Q
Block when disabled by IN4 or virtual switch 243
/IN4+243
1 (enabled)
151N
Not used
0
0 (disabled)
27P
Not used
0
0 (disabled)
59P
Not used
0
0 (disabled)
59X
Not used
0
0 (disabled)
47
Not used
0
0 (disabled)
62
Not used
0
0 (disabled)
NOTE
When using OUT1 through OUT5 as alarm outputs, remember that
these outputs do not have normally closed, failsafe output contacts.