Toshiba GR200 Series Instruction Manual page 71

commands externally using PLC connection points in the CBF function.
CBF start
(i)
The CH* operates on a per-phase basis; it is initiated with 'GEN.TRIP_CH*'
START-A/-B/-C_CH*'
2
that the PLC signals must be present for as long as the fault persists.
Figure 2.2-2 ( ○
α
signals are determined by the setting of scheme switch [BayDevice_CH*]
on conditions of 'GEN.TRIP_CH*', 'CBF-START-A/-B/-C_CH*' ,'EXT.CBF-START_A/B/C_CH*',
or 'INT.CBF START_CH*'.
Note: The 'GEN.TRIP_CH*' and 'GEN.TRIP_Coupler1 to 8' signals originate in the trip
1
circuit (TRC). See
Note: Suppose that the signals provided at 'CBF-START-A/-B/-C_CH*' come from binary
2
inputs or 'EXT.CBF_START_A/B/C_CH*' come from external protection devices,
such as line protections, bus-bar coupler protection and others.
Note: Suppose that the signal 'INT.CBF_START_CH*' comes from internal protection
3
functions.
Note: Scheme switch [BayDevice_CH*] (Table 2.2-6) in Replica setting, allows the user
4
select the configuration of the bay unit; the start signals (Re-trip, Zone-trip, and
Transfer-trip) depend on the setting and incoming signals. See separate manual
Replica setting procedure for Centralized Busbar protection IED
Table 2.2-6 Replica setting [Bay Device_CH*] and start signal
Start signal
CBF-START
EXT.CBF_START
GEN.TRIP
INT.CBF_START
, 'EXT.CBF_START-A/-B/-C_CH*'
, ○ , and ○ ) illustrates that Re-Trip, Zone-Trip, and Tr-Trip start-up
β γ
Chapter Relay application: Trip circuit
Setting [Bay Device_CH*] in Replica settings
Feeder
Re-trip
Zone-trip
Re-trip
Transfer-trip
- 57 -
6F2S1931 (0.20)
or 'INT.CBF_START_CH*'
2,
; they are dependent
4
.
(6F2S1923).
Coupler, Endsection
Re-rip
Transfer-trip
Re-trip
Transfer-trip
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)
, 'CBF-
1
. Note
3