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Permission signals received:
From Terminal 1
800000EB55 INT.DEFCAR-R1-A
810000EB56 INT.DEFCAR-R1-B
820000EB57 INT.DEFCAR-R1-C
From Terminal 2
840000EBB8 INT.DEFCAR-R2-A
850000EBB9 INT.DEFCAR-R2-B
860000EBBA INT.DEFCAR-R2-C
POP
≥1
DEFCAR
UOP
ECHO1_CONDITION
DEF-ECHO
On
1
810000EBBE DEF-ECHO BLOCK
ECHO2_CONDITION
Unblocking overreach protection (UOP)
2.3.2
DEFCAR sends a trip block signal in UOP. Thus, UOP stops to send a trip block signal for an
internal fault. Settings and operation of UOP is the same as POP.
Blocking overreach protection (BOP)
2.3.3
BOP send a trip block signal except for an internal fault. When DEFCF operates, BOP issues
a trip single unless a trip-blocking single is received.
The delayed pick-up timer [TCHD-DEF] is provided to allow for the transmission delay of the
trip block signal from the opposite terminal. Therefore, user should set a time depending on
the delay of communication channel.
Setting [TCHD-DEF] = maximum signal transmission delay time†+ 5ms
†Note: Including operation time of circuits of Binary IO modules, these circuits are used
to send/receive a trip-blocking signal.
For setting [TREBK-DEF], see Chapter 2.3.1.
=1
&
=1
&
=1
&
&
=1
&
=1
=1
&
&
&
&
&
&
&
&
&
Figure 2.3-7 ECHO logic
- 61 -
&
t
0
0
t
≥1
1
0.05s
0.2s
≥1
&
≥1
t
0
0
t
1
0.05s
0.2s
&
t
0
0
t
1
0.05s
0.2s
&
t
0
0
t
≥1
1
0.05s
0.2s
≥1
&
≥1
t
0
0
t
1
0.05s
0.2s
&
t
0
0
t
1
0.05s
0.2s
6F2T0207 (0.01)
8000001B6D
DEF-ECHO_CS-A
≥1
8100001B6F
DEF-ECHO_CS-B
≥1
8200001B6F
DEF-ECHO_CS-C
≥1
GRE200 (5,6)
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