Logic Diagram; Signals - ABB REG650 Technical Manual

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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.

IEC04000525 V1 EN

SCILO function logic diagram

SCILO Input signals

SCILO Output signals

Open position of switch device

Closed position of switch device

Open operation from interlocking logic is enabled

Close operation from interlocking logic is enabled

Open operation at closed or intermediate or bad

position is enabled

Close operation at open or intermediate or bad

position is enabled

1MRK 502 048-UEN A

en04000525.vsd

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