Toshiba GR-200 Series Instruction Manual page 281

Multi functional protection ied

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Protection functions

FC1-ARC-BLOCK

FC2-ARC-BLOCK

FC40-TRIP-A and others

CBF_ARC-BLOCK

Figure 2.23-1 shows that the function is made with following logics:

Collection: The signals, received from the various protection functions (shown as

'FC18' and others; see Table 2.23-1 and Table 2.23-3), are gathered in the Trip-

command collection logic.

Generation: CB trip signal generation, Sub-signal generation for blocking ARC§, and

Alarm-signal generation logics are provided.

A binary output (BO†) circuit must be selected in order to energize the trip coil of the CB.

That is, the user should make the connection between the CB trip coil and the BO; the drive

signal should be outputted (i.e., 'TRIP COMMAND' †). The Alarm-signal generation logic

operates to provide a trigger signal for the recording function‡.

†Note: The internal connection between the TRC function and the BIO should be

performed in the BIO settings or the PLC programming. As the PLC monitoring

point "TRIP COMMAND" is designated using Element ID '8300001B78', the user

must program it for a preferred BO circuit using the settings [Input signal1] to

[Input signal8] for each BO and for each binary IO module. The externally wired

TRC function

Trip-command

GEN.ARC-BLOCK

GEN.TRIP_ALARM

Alarm signal

Figure 2.23-1 TRC block diagram

Binary IO module

6F2T0200 (0.15)

Lateral branch

GRE200 (1,2)

Chapters

Gre200-1 Gre200-2