Toshiba GR200 Series Instruction Manual page 205

Scheme logic
2.11.2
Figure 2.11-1shows the DTT scheme logics . For the reception of a pair of trip signals from a
remote terminal, the logic has two PLC connection points 'R1.DTT1' and 'R1.DTT2'. The user should
connect a remote trip signal provided by the communication with the PLC connection points using
PLC function.
Blocking the DTT1 function is also available when an external signal is injected to the
logic using PLC connection point "DTT1_BLOCK". Incidentally, the user can program to
operate the DTT1 function with the absence of the delaying [TDD1] using PLC connection point
"DTT1_INST_OP". The user should notice that issuing for the TRC function is just designed
for the three-phase tripping command.
From the communication
COMM.DATA FAIL_R1
COMM.DATA FAIL_R2
From Remote1
8000011BB0
800001EBB0 R1_DTT1
8000021BB0
800002EBB0 R1_DTT2
From Remote2
8100011BB1
810001EBB1 R2_DTT1
8100021BB1
810001EBB1 R2_DTT2
8000011BB4
800001EBB4 DTT1_BLOCK
8000011BB5
800001EBB5 DTT1_INST_OP
8100021BB4
800001EBB4 DTT2_BLOCK
8100021BB5
810002EBB5 DTT2_INST_OP
&
≥1
1
&
1
On
&
DTT1-EN
1
&
≥1
1
&
1
On
&
DTT2-EN
1
Figure 2.11-1 DTT1 and DTT2 scheme logics
- 182 -
BO
Trip
DTT1-Output
TDTT1
&
t 0
≥1
8000011B60
0.00 to 300.00s
&
DTT1-ARCBlk
Block
DTT2-ARCBlk
Block
TDTT2
&
t 0
≥1
8100021B60
0.00 to 300.00s
&
BO
Trip
DTT2-Output
6F2S1914 (0.49)
&
≥1
8300001B23
DTT-OPT-TRIP
8000011B61
&
8500001B61
DTT-ARC-BLOCK
≥1
8100021B61
&
&
GRL200 (Soft 033 & 037)
To TRC
COMM.DATA
COMM.D