Toshiba GR200 Series - 2.11.2 Scheme logic

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 182 -
2.11.2 Scheme logic
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.
0.00 to 300.00s
t 0
TDTT1
1
800001EBB0 R1_DTT1
&
&
≥1
DTT-ARC-BLOCK
On
DTT1-EN
To TRC
&
COMM.DATA FAIL_R1
8000011BB0
1
810001EBB1 R2_DTT1
&
COMM.DATA FAIL_R2
8100011BB1
800001EBB4 DTT1_BLOCK
8000011BB4
1
&
≥1
800001EBB5 DTT1_INST_OP
8000011BB5
8000011B60
DTT1-Output
&
Trip
BO
DTT1-ARCBlk
Block
&
8000011B61
DTT-OPT-TRIP
0.00 to 300.00s
t 0
TDTT2
1
800002EBB0 R1_DTT2
&
&
≥1
&
COMM.DATA FAIL_R1
8000021BB0
1
810001EBB1 R2_DTT2
&
COMM.DATA FAIL_R1
8100021BB1
800001EBB4 DTT2_BLOCK
8100021BB4
1
&
≥1
810002EBB5 DTT2_INST_OP
8100021BB5
8100021B60
DTT2-Output
&
Trip
BO
DTT2-ARCBlk
Block
&
8100021B61
≥1
8300001B23
≥1
8500001B61
From the communication
On
DTT2-EN
From Remote1
From Remote2
Figure 2.11-1 DTT1 and DTT2 scheme logics