Identification; Functionality; Function Block; Logic Diagram - ABB REC650 Technical Manual

Section 10
Control
10.4.2.1
10.4.2.2
10.4.2.3
10.4.2.4
264

Identification

Function description
Logical node for interlocking

Functionality

The Logical node for interlocking SCILO function is used to enable a switching
operation if the interlocking conditions permit. SCILO function itself does not
provide any interlocking functionality. The interlocking conditions are generated in
separate function blocks containing the interlocking logic and provides SCILO its
input.

Function block

SCILO
POSOPEN EN_OPEN
POSCLOSE EN_CLOSE
OPEN_EN
CLOSE_EN
IEC09000083.vsd
IEC09000083 V1 EN
Figure 129: SCILO function block

Logic diagram

The function contains logic to enable the open and close commands respectively if the
interlocking conditions are fulfilled. That means also, if the switch being controlled
has its position defined as open (via POSOPEN) for example, then the appropriate
enable signal output (in this case EN_OPEN) is false. The switch operation enable
signals EN_OPEN and EN_CLOSE can be true at the same time only in the
intermediate and bad position state of the switch (defined via POSOPEN and
POSCLOSE) and if they are enabled by the interlocking function. The position inputs
come from the logical nodes Circuit breaker/Circuit switch (SXCBR/SXSWI) and the
enable signals , OPEN_EN and CLOSE_EN come from the interlocking logic. The
outputs are connected to the logical node Switch controller (SCSWI). One instance
per switching device is needed.
IEC 61850 IEC 60617
identification identification
SCILO -
1MRK 511 287-UEN A
ANSI/IEEE C37.2
device number
3
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