Schweitzer Engineering Laboratories SEL-421-4 - Page 572

8.36
SEL-421 Relay Instruction Manual Date Code 20171021
Settings
Front-Panel Settings
PB8_LED NOT (52ACL1 AND 52AB1 AND 52AC1) #BREAKER OPEN (8 Pushbut-
tons) 0#AUX (12 Pushbuttons)
PB8_COL AO
PB9_LED
a
0 #AUX
PB9_COL
a
AO
PB10LED
a
0 #AUX
PB10COL
a
AO
PB11LED
a
52ACL1 AND 52AB1 AND 52AC1 #BREAKER CLOSED 0 #AUX (Auxil-
iary TRIP/CLOSE Pushbuttons)
PB11COL
a
AO
PB12LED
a
NOT (52ACL1 AND 52AB1 AND 52AC1) #BREAKER OPEN 0 #AUX (Aux-
iliary TRIP/CLOSE Pushbuttons)
PB12COL
a
AO
T1_LED (Z1P OR Z1G) AND NOT (SOTFT OR TLED_3)
T1LEDL Y
T1LEDC RO
T2_LED (Z2PT OR Z2GT OR Z3PT OR Z3GT OR Z4PT OR Z4GT) AND NOT
(TLED_1 OR TLED_3 OR TLED_4)
T2LEDL Y
T2LEDC RO
T3_LED COMPRM AND NOT (Z1P OR Z1G OR TLED_1 OR SOTFT)
T3LEDL Y
T3LEDC RO
T4_LED SOTFT
T4LEDL Y
T4LEDC RO
T5_LED (Z1P OR Z1G) AND NOT (TLED_6 OR TLED_7 OR TLED_8)
T5LEDL Y
T5LEDC RO
T6_LED (Z2P OR Z2G) AND NOT (Z1P OR Z1G OR TLED_5)
T6LEDL Y
T6LEDC RO
T7_LED (Z3P OR Z3G) AND NOT (Z1P OR Z2P OR Z1G OR Z2G OR TLED_5 OR
TLED_6)
T7LEDL Y
T7LEDC RO
T8_LED (Z4P OR Z4G) AND NOT (Z1P OR Z2P OR Z3P OR Z1G OR Z2G OR Z3G
OR TLED_5 OR TLED_6 OR TLED_7)
T8LEDL Y
T8LEDC RO
T9_LED PHASE_A
T9LEDL Y
T9LEDC RO
Table 8.83 Front-Panel Settings Defaults (Sheet 2 of 4)
Setting Default Value