Toshiba GR200 Series Instruction Manual page 165

Permission signals received:
From Terminal 1
Integral DEFCAR-R1-A
Integral DEFCAR-R1-B
Integral DEFCAR-R1-C
External DEFCAR-R1
From Terminal 2
Integral DEFCAR-R2-A
Integral DEFCAR-R2-B
Integral DEFCAR-R2-C
External DEFCAR-R2
POP
≥1
DEFCAR
UOP
ECHO1_CONDITION
DEF-ECHO
On
1
810000EBBE DEF-ECHO BLOCK
ECHO2_CONDITION
Unblocking overreach protection (UOP)
2.4.2
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)
2.4.3
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 section 2.4.1.
=1
&
≥1
=1
&
≥1
=1
≥1
&
=1
&
=1
≥1
=1 &
≥1
=1
≥1 &
=1
&
&
&
&
&
&
&
&
Figure 2.4-7 ECHO logic
- 144 -
&
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
≥1 0.05s 0.2s
&
≥1
t 0
0 t
1
0.05s 0.2s
&
t 0
0 t
1
0.05s 0.2s
GRZ200 (Soft 031 & 032)
6F2S1915 (0.46)
8000001B6E
DEF-ECHO_CS-A
≥1
8100001BE
DEF-ECHO_CS-B
≥1
8000001B6F
DEF-ECHO_CS-C
≥1