Position Evaluation Pos_Eval; Introduction; Logic Diagram - ABB Relion 670 Series Technical Reference Manual

Section 11
Control
11.3.12
11.3.12.1
11.3.12.2
414
Name Type
QC2ITL BOOLEAN
QB1OPTR BOOLEAN
QB1CLTR BOOLEAN
QB2OPTR BOOLEAN
QB2CLTR BOOLEAN
QB12OPTR BOOLEAN
QB12CLTR BOOLEAN
VPQB1TR BOOLEAN
VPQB2TR BOOLEAN
VPQB12TR BOOLEAN

Position evaluation POS_EVAL

Introduction

Position evaluation (POS_EVAL) function converts the input position data signal
POSITION, consisting of value, time and signal status, to binary signals
OPENPOS or CLOSEPOS.
The output signals are used by other functions in the interlocking scheme.

Logic diagram

Position including quality
IEC08000469-1-EN V1 EN
Only the value, open/close, and status is used in this function. Time information is
not used.
Input position (Value) Signal quality
0 (Breaker
intermediate)
1 (Breaker open)
2 (Breaker closed)
3 (Breaker faulty)
Any
Any
Description
Switching of QC2 is forbidden
QB1 is in open position
QB1 is in closed position
QB2 is in open position
QB2 is in closed position
QB1 or QB2 or both are in open position
QB1 and QB2 are not in open position
Switch status of QB1 is valid (open or closed)
Switch status of QB2 is valid (open or closed)
Switch status of QB1 and QB2 are valid (open or
closed)
POS_EVAL
POSITION OPENPOS
CLOSEPOS
Output OPENPOS
Good
Good
Good
Good
Invalid
Oscillatory
1MRK 505 208-UEN B
Open/close position of
switch device
IEC08000469-1-en.vsd
Output CLOSEPOS
0 0
1 0
0 1
0 0
0 0
0 0
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