ABB Relion 670 series, Technical Reference Manual

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The blocking facilities provided by the bay control function are the following:
• Blocking of position indications, BL_UPD. This input will block all inputs related
to apparatus positions for all configured functions within the bay.
• Blocking of commands, BL_CMD. This input will block all commands for all
configured functions within the bay.
• Blocking of function, BLOCK, signal from DO (Data Object) Behavior (IEC 61850–
8–1). If DO Behavior is set to "blocked" it means that the function is active, but no
outputs are generated, no reporting, control commands are rejected and functional
and configuration data is visible.
The switching of the Local/Remote switch requires at least system operator level. The
password will be requested at an attempt to operate if authority levels have been
defined in the IED. Otherwise the default authority level, SuperUser, can handle the
control without LogOn. The users and passwords are defined in PCM600.
12.3.4.3 Function block
IEC10000048-1-en.vsd
QCBAY
LR_OFF
LR_LOC
LR_REM
LR_VALID
BL_UPD
BL_CMD PSTO
UPD_BLKD
CMD_BLKD
LOC
REM
IEC10000048 V1 EN
Figure 327: QCBAY function block
12.3.4.4 Input and output signals
Table 327: QCBAY Input signals
Name Type Default Description
LR_OFF BOOLEAN 0 External Local/Remote switch is in Off position
LR_LOC BOOLEAN 0 External Local/Remote switch is in Local position
LR_REM BOOLEAN 0 External Local/Remote switch is in Remote position
LR_VALID BOOLEAN 0 Data representing the L/R switch position is valid
BL_UPD BOOLEAN 0 Steady signal to block the position updates
BL_CMD BOOLEAN 0 Steady signal to block the command
1MRK505222-UUS C
Section 12
Control
657
Technical reference manual