9328900990 Rev L BE1-951 Application 8-25
Table 8-13. FDR-W-IL Contact Sensing Input Logic
State Labels
Input Purpose Name Label
Energized De-Energized
IN1 51b breaker status. 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
Enable neutral and negative sequence, 50,
and 51 protection when IN3 is energized.
N&Q_ENABLE ENABLED DISABLD
IN4
When IN4 is de-energized, the relay is
placed in Test mode and reclosing and
breaker failure are disabled.
TESTDISABL NORMAL TSTMODE
Table 8-14. FDR-W-IL 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 IN3 or virtual switch 243.
79SCB+/IN3+243
1 (3 Phase
Residual)
50TQ
Block when recloser sequence controlled blocking output is
TRUE or when disabled by IN3 or virtual switch 243.
79SCB+/IN3+243 1 (enabled)
150TP Used for high set. 0 1 (enabled)
150TN Used for high set. 0
1 (3 Phase
Residual)
150TQ Used for high set. 0 1 (enabled)
51P N/A 0 1 (enabled)
51N Block when disabled by IN3 or virtual switch 243. /IN3+243
1 (3 Phase
Residual)
51Q Block when disabled by IN3 or virtual switch 243. /IN3+243 1 (enabled)
151N N/A 0 0 (disabled)
24 N/A 0 0 (disabled)
27P N/A 0 0 (disabled)
27X N/A 0 0 (disabled)
59P N/A 0 0 (disabled)
159P N/A 0 0 (disabled)
159X N/A 0 0 (disabled)
47 N/A 0 0 (disabled)
25 N/A 0 0 (disabled)
81 N/A 0 0 (disabled)
181 N/A 0 0 (disabled)
281 N/A 0 0 (disabled)
381 N/A 0 0 (disabled)
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