Toshiba GR-200 Series Instruction Manual page 736

Other supervision tasks
Trip circuit supervision (TCS)
10.3.1
Trip circuit supervision (TCS) can issue an alarm when there is a control circuit failure for
tripping breaker. It can be triggered by power supply loss on trip circuit, or open circuit,
regarding the control circuit connection, can induce the alarm.
Operation
(i)
Logics
TCS function has six monitoring logics (TCS1 to TCS6). For example, TCS1 logic will issue a
signal "TC1_Fail" when it can have the following conditions:
There is no signal at both PLC connection points "TC1_FAIL_SIGNAL1" and
➢
"TC1_FAIL_SIGNAL2" for 0.4 sec or longer.
Either On or OPT-On† is set for the switch [TCS1-EN].
➢
800001EBB0 TC1_FAIL_SIGNAL1
800001EBB1 TC1_FAIL_SIGNAL2
800001EBB2 TC1_FAIL_COND
TCS1-EN
TCS2 scheme logic (same as TCS1 scheme logic)
TCS3 scheme logic (same as TCS1 scheme logic)
TCS4 scheme logic (same as TCS1 scheme logic)
TCS5 scheme logic (same as TCS1 scheme logic)
TCS6 scheme logic (same as TCS1 scheme logic)
†Note: the user can add a user-programmed condition for the TCS1 decision. Connect a
user-programmed signal with the "TC1_FAIL_COND". TCS1 monitor can operate
only when the user-programmed signal is generated at "TC1_FAIL_COND".
8000011BB0
1
&
8000011BB1
1
8000011BB2
&
OPT-On
≥1
On
Figure 10.3-1 TCS scheme logics
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t 0 0 t
0.4s 0.4s
6F2T0200 (0.15)
8000011B60
TC1_FAIL
8100021B60
TC2_FAIL
8200031B60
TC3_FAIL
8300041B60
TC4_FAIL
8400051B60
TC5_FAIL
8500061B60
TC6_FAIL
≥1
8F00001B60
TC_FAIL
GRE200 (1,2)