ABB Relion REG670, Technical Manual

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Table 400: QCBAY Output signals
Name Type Description
PSTO INTEGER Value for the operator place allocation
UPD_BLKD BOOLEAN Update of position is blocked
CMD_BLKD BOOLEAN Function is blocked for commands
LOC BOOLEAN Local operation allowed
STA BOOLEAN Station operation allowed
REM BOOLEAN Remote operation allowed
14.3.4.4 Settings
Table 401: QCBAY Non group settings (basic)
Name Values (Range) Unit Step Default Description
AllPSTOValid Priority
No priority
- - Priority Override Priority of originators,
commands from both local, station and
remote are allowed
RemoteIncStation No
Yes
- - No Both Station and Remote control are
allowed but not Local when local remote
switch is in remote
14.3.4.5 Operation principle
The function sends information about the Permitted Source To Operate (PSTO) and
blocking conditions to other functions within the bay for example, switch control
functions and voltage control functions. The functionality of the Bay control
(QCBAY) function is mainly described by the LLN0 node in the IEC61850-8-1
edition 2 standard, applied to one bay. In IEC61850 edition 1 the functionality is not
described by the LLN0 node or any other node, therefore the Bay control function is
represented as a vendor specific node in edition 1.
Local panel switch
The local panel switch is a switch that defines the operator place selection. The switch
connected to this function can have three positions (remote/local/off). The positions
are here defined so that remote means that operation is allowed from station and/or
remote level and local means that operation is allowed from the IED level. The local/
remote switch is also on the control/protection IED itself, which means that the
position of the switch and its validity information are connected internally, not via I/
O boards. When the switch is mounted separately from the IED the signals are
connected to the function via I/O boards.
When the local panel switch (or LHMI selection, depending on the set source to select
this) is in Off position, all commands from remote and local level will be ignored. If
the position for the local/remote switch is not valid the PSTO output will always be set
to faulty state (3), which means no possibility to operate.
Section 14
1MRK502052-UEN B
Control
710
Technical manual