Toshiba GR200 Series Instruction Manual page 893

Line differential protection ied
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Note: To identify the input and output signal-points of the other DPOS logics, see Table
††
4.8-14 for PLC#1, Table 4.8-15 for PLC#2, Table 4.8-18 and Table 4.8-20 for output
signals.
Note: The "Operate failed" signal is issued when the state-change is not detected until
‡‡
after reaching the time set by the [DPOS01-RST].
Receiving "Operate command Off" from the local-end
(iv)
Figure 4.8-25 outlines the reception of the operate command 'Off ' from the local-end.
Wait for a command
Select stage
Select command On from the remote-end
Select command Off from the remote-end
Select command On from the local-end
Select command Off from the local-end
Select command On by the PLC function
Select command Off by the PLC function
Figure 4.8-25 Outline of Operate command 'Off'
Input signal generated at the local-end
Figure 4.8-26 illustrates the operate logic when an "Operate command Off (Local-OFF-Control)"
signal is applied to the DPOS01 logic. The input signal is provided when "Execution for Off" is
keyed on the IED front panel.
Output signal to BO
The DPOS01 function, in Figure 4.8-26, can issue an "Operate" signal at the output point
"DPOS01_FEX_BO", when the DPOS01 function determines that the input signal "Local-Off-
Control" is true.
Wait for a next command
Operate command On from remote-end
Operate command Off from remote-end
Operate command On from the local-end
Operate command Off from the local-end
Operate logic
Signal reception from
the front panel
Operate command On by the PLC function
Operate command Off by the PLC function
- 870 -
6F2S1914 (0.49)
Success
Operate
Signal output
decision
Do nothing
Failed
GRL200 (Soft 033 & 037)

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