ABB RELION 650 SERIES, Technical Manual

Page: 420 / 942

If the quality of the position or the communication becomes bad, the command
evaluation replaces the uncertain position value with intermediate position. Thus,
as long as the quality is bad, all commands will result in the cause Persistant-
intermediate-state, -32.
If the switch in the merging unit has the behaviour set to
Test
or
Test
blocked
, when the IED has the behaviour
On
or
Blocked
, all data from the
switch is regarded as invalid. Thus, any command will fail with the cause
PersistantiIntermediate-state, -32, and if selection is used for the switch, all
attempts to select the connected SCSWI will fail with the cause Select-failed, 3,
from the SCSWI.
It is possible to speed up the command response for when the command has been
started by the switch in the breaker IED by connecting the inputs OPOK and
OPOK_VAL. Then the blocking check is only done until OPOK is activated and
confirmation of that the command has been started is given to the SCSWI function.
If the inputs STSELD and STSELD_V are connected, the switch in the breaker
IED is assumed to use selection. Then the SCSWI will wait for a selected
indication, STSELD input of XLNPROXY, before accepting selection, this
information is transferred to the SCSWI function from the XLNPROXY through
the group connection XPOS. If STSELD is not activated within
tSelect of the
SCSWI function, the selection is deemed failed and it gives a negative selection
acknowledgement to the command issuer with the cause Select-failed. Further, if
the communication is lost, or the data received is deemed invalid, the selection will
also fail with cause Select-failed from the SCSWI.
11.5 Logic rotating switch for function selection and
LHMI presentation SLGAPC
SEMOD114936-1 v4
11.5.1 Identification
SEMOD167845-2 v3
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Logic rotating switch for function
selection and LHMI presentation
SLGAPC - -
11.5.2 Functionality
SEMOD114908-4 v10
The logic rotating switch for function selection and LHMI presentation (SLGAPC)
(or the selector switch function block) is used to get an enhanced selector switch
functionality compared to the one provided by a hardware selector switch.
Hardware selector switches are used extensively by utilities, in order to have
different functions operating on pre-set values. Hardware switches are however
Section 11
1MRK 506 382-UEN A
Control
414 Line distance protection REL650 2.2 IEC
Technical manual