ABB Relion 670 Series Technical Reference Manual page 701

1MRK505222-UUS C
12.4.3.2
12.4.3.3
12.4.3.4
Technical reference 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 has a defined end
position for example, open, then the appropriate enable signal (in this case EN_OPEN)
is false. The enable signals EN_OPEN and EN_CLOSE can be true at the same time
only in the intermediate and bad position state 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 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 355: SCILO (3) function logic diagram
Function block
SCILO (3)
POSOPEN EN_OPEN
POSCLOSE EN_CLOSE
OPEN_EN
CLOSE_EN
ANSI05000359-1-en.vsd
ANSI05000359 V1 EN
Figure 356: SCILO (3) function block
Input and output signals
Table 353: SCILO (3) Input signals
Name Type
POSOPEN BOOLEAN
POSCLOSE BOOLEAN
OPEN_EN BOOLEAN
CLOSE_EN 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
Section 12
SCILO
EN_OPEN
AND
OR
AND
EN_CLOSE
AND
OR
AND
en04000525_ansi.vsd
Control
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