Toshiba GR200 Series Instruction Manual page 343

Group setting for protection functions
As shown in Figure 4.8-1, protection settings (i.e., DIF settings, CBF settings, etc.) are
segmented into eight groups, and different setting values of the relays can be set as per
circumstances such as operation conditions and others. Note that changing the group cannot
be not carried out instantly.
Figure 4.8-1 Eight groups for protection settings
Changing group number by menu operation
(i)
The user can change the group number using the menu† on the IED screen. See the Chapter
User interface: Setting sub-menu.
Changing group number by user-programming
(ii)
Another changing method is provided by programing PLC logics (For more information about
PLC programing, see the Chapter
changing group2 from group1 is performed while BI1 circuit is energized. The group setting
function "Setting (Function ID 201400)" has a signal reception point 'PLC_Group_ENUM' in
UNIT type; thus changing the group is performed when either numbers (1 to 8) enters at the
signal reception point. The example logic, designed for changing to group2 from group1,
Settings
Protection (Relay)
Group1 setting
DIF
CBF
...
TRC
Group2 setting
DIF
CBF
...
TRC
Group8 setting
DIF
CBF
...
TRC
PLC function.
- 329 -
...
OC
EF
OV
UV
THM
TRC
) Figure 4.8-2 exemplifies a PLC logic:
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)
6F2S1931 (0.20)