Toshiba GR200 Series Instruction Manual page 643

Line differential protection ied

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Selection logic for SBO/DIR modes

The user should set scheme switch [SPOS01-CTREN] to On prior to SPOS01 operation. Table

4.1-10 shows all of the scheme switches in the SPOS function.

Receiving "select command ON" from the remote-end

Figure 4.1-1 outlines the reception of the select command 'On' from the remote-end.

Wait for a command

Select stage

Select command On from remote-end

Signal reception

Select command Off from remote-end

Select command On from local-end

Select command Off from local-end

Select command On by the PLC function

Select command Off by the PLC function

Input point required mapping

Figure 4.1-2 shows the select logic when a "Select command ON (Remote-ON-Control)" signal

applied to the SPOS01 function. This logic has the input-point "DEV01_CONTROL_REQ" for

the reception of the selection command. That is, the input-point must be mapped for IEC 61850

communication. The function will fail to operate if mapping is not performed correctly. We will

discuss how to map the input-points for IEC61850 communication in section 4.1.5.

Selection logic

Figure 4.1-1 Outline of select command 'On'

Signal output

6F2S1914 (0.49)

Wait for a next command

Cancel logic

Cancel command

Cancel logic

Operate logic

Operate command

Operate logic

GRL200 (Soft 033 & 037)

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