ABB REC650 User Manual

10.4.2.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Logical node for interlocking SCILO - 3
10.4.2.2 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.
10.4.2.3 Function block
SCILO
POSOPEN
POSCLOSE
OPEN_EN
CLOSE_EN
EN_OPEN
EN_CLOSE
IEC09000083.vsd
IEC09000083 V1 EN
Figure 129: SCILO function block
10.4.2.4 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.
Section 10 1MRK 511 287-UEN A
Control
264
Technical manual

ABB REC650 Specifications

General

Brand	ABB
Model	REC650
Category	Control Unit
Language	English