Logic Diagram - ABB REL650 series Technical Manual

1MRK 506 335-UUS A
11.5.2.4
11.5.2.5
Technical manual

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.
POSOPEN
POSCLOSE
OPEN_EN
CLOSE_EN
ANSI04000525 V1 EN
Figure 196: SCILO (3) function logic diagram
Signals
Table 274: SCILO (3) Input signals
Name Type
POSOPEN BOOLEAN
POSCLOSE BOOLEAN
OPEN_EN BOOLEAN
CLOSE_EN BOOLEAN
Table 275: SCILO (3) Output signals
Name Type
EN_OPEN BOOLEAN
EN_CLOSE BOOLEAN
XOR
NOT
Default Description
0 Open position of switch device
0 Closed position of switch device
0 Open operation from interlocking logic is enabled
0 Close operation from interlocking logic is enabled
Description
Open operation at closed or intermediate or bad position
is enabled
Close operation at open or intermediate or bad position
is enabled
Section 11
SCILO
EN_OPEN
AND
OR
AND
EN_CLOSE
AND
OR
AND
en04000525_ansi.vsd
Control
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