Siemens SCOR Installation, Operation & Maintenance Instructions Manual page 21

4 Installation and Testing
@19@17@15@13@11
20 1 8 16 14 12
Overcurrent
SOLID-STATE PROTECTIVE RELAY
C��;��s �
�
COM(+)(- )
GND
9 5
10 @ 8 @ 6 @ 4 @ 2 @
7
REAR VIEW OF RELAY SHOWING ACTUAL
POSITION OF TERMINALS
( +
)
TRIP BUS
(-)TRIP BUS
FOR SENSING
INPUT TERMINALS,
SEE PRECEDING PAGES
SPECIFIED
POWER SUPPLY
3 1
Figure 6. Relay Connections
51
5
Figure 7. Control Circuits
BE1-51 SCOR
COM (+)
INPUT
DIODES AND RESISTOR ARE INTERNAL COMPONENTS OF
THE RELAY. THEY ARE SHOWN HERE TO INDICATE THE
SOURCE OF DIRECT CURRENT FOR 52b SENSING POWER.
D
THE RS-232 PORT IS ON FRONT PANEL ALL OTHER
2
CONNECTIONS ARE AT REAR OF CASE.
51
3
52b
51
11
&
51
12
51
4
}
riMED TRIP
(·)
(OPTION 1-2)
INST 2
OR
COMMAND CLOSE
OR
GROUND TRIP
LEGEND:
51 OVERCURRENT RELAY
TRIP
52
BREAKER COIL
TC
52a BREAKER AUXILIARY
CONTACTS
1
INST INSTANTANEOUS
OVERCURRENT # 1
INST 2
INSTANTANEOUS
OVERCURRENT #2
TT
TIMED TRIP
&
RELAY DISABLED OUTPUT
&
REQUIRES OPTIONS
1-2 AND 2-C, PLUS
A PROGRAMMING
3)
CHANGE (SEE PG.
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