Toshiba GR-200 Series Instruction Manual page 261

a default. When the VCHK function is not implemented, Logic '1' signal (Always
high(TRUE)) is applied.
§Note: In terms of setting, the value applied to the [ TRR ] timer should be longer than
that applied to the [ TSHOT ] timer. Setting [ TSHOT_SUB ] timer may be required
if the PLC signal is injected by the user programing.
SHOT2 logic - settings
(iv)
Figure 2.22-6 shows the SHOT2 logic for the second reclosing command. Similar to the SHOT1
logic, the SHOT2 logic begins to generate the 'ARC SHOT2' signal when a further flip-flop
circuit issues the 'ARC-S2 IN-PROG' signal, as shown in Figure 2.22-2 previously. The user is
required to provide settings for timers [TD_MS2] and [TRR_MS2] in this logic, as explained in
Chapter 2.22.2(vii). Note that the SHOT2 logic must meet a user specified criterion before the
'ARC SHOT2' command can be issued; a signal injection point is provided at the PLC
connection point 'ARC-S2 COND'; the user must program the criterion using the PLC function.
Signal generated by the
user's PLC programing
Flip-flop
ARC-S2 IN-PROG
†Note: The requirement to fulfil the criterion for issuing the 'ARC SHOT2' signal is
dependent upon user applications; note that the user can also program a Logic '1'
signal (Always high(TRUE)) if no criteria are required.
Issuing command logic - settings
(v)
Figure 2.22-7 shows that the ARC function can issue a reclose signal 'ARC CLOSE COMMAND'
triggered by SHOT1 and SHOT2 logic blocks. Setting [TCCW] is provided to set the pulse width
of the 'ARC CLOSE COMMAND' signal.
SHOT1 logic ARC SHOT1
SHOT2 logic ARC SHOT2
800000EBBD
†Note: See Chapter
810000EBB9 ARC_S2 COND
Figure 2.22-6 SHOT2 logic
≥1
8000001BBD
CB_MANUAL_CLOSE‡
Figure 2.22-7 Issuing command logic
Technical description: Binary IO module
- 242 -
8100001BB9
&
8100001BB6
TD_MS2
t 0
0.01 – 300.00s
TRR_MS2
t 0
0.01 – 310.00s
≥1
8000001B6A
TCCW
0.01 – 10.00 s
(→p. 533).
6F2T0200 (0.15)
To Issuing command logic
ARC SHOT2
To Final trip stage
ARC-S2 TRR
To Success check logic
ARC SHOT
To binary output circuit†
ARC CLOSE COMMAND
GRE200 (1,2)
ARC SHO