Toshiba GR200 Series Instruction Manual page 335

Centralized busbar protection ied

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the DST settings of the IED. We shall see the DST settings in section 4.7.5.

Table 4.7-2 Settings for the IRIG-B Time synchronization

Setting item

SNTP / BI / MODBUS / IRIG-B / IEC103

USE_LOCALTIME

Synchronization using BI signal

When accurate1Hz square-wave can be supplied as a reference clock, the clock function can

make the time synchronization. The 1Hz square-wave is transferred using a binary input

circuit (BI).

Example of time synchronization via BI circuit

Figure 4.7-7 exemplifies that the 1Hz square-wave is provided via the BI1 circuit†.

Signal generator

1Hz squire wave

Figure 4.7-7 IED connected with the signal generator via BI module

†Note: The BI1 circuit is just used for the explanation; hence, an actual BI circuit should

Selection of sync method

Operation of IRIG-B

Selection of IEEE

C37.118/IRIG-B000

Operation in the local time

(200B01 8001001111)

Setting [BI_ID]

Centralized GRB200

(Soft: 030, 031, 032, 033, 034)

6F2S1931 (0.20)

Setting example

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