ABB Relion 670 Series Technical Reference Manual page 759

1MRK505222-UUS C
12.4.12
12.4.12.1
12.4.12.2
12.4.12.3
12.4.12.4
Technical reference manual
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
Function block
POS_EVAL
POSITION OPENPOS
CLOSEPOS
IEC09000079_1_en.vsd
IEC09000079 V1 EN
Figure 377: POS_EVAL function block
Input and output signals
Table 379: POS_EVAL Input signals
Name Type
POSITION INTEGER
POS_EVAL
POSITION OPENPOS
CLOSEPOS
Output OPENPOS
Good
Good
Good
Good
Invalid
Oscillatory
Default Description
0 Position status including quality
Section 12
Control
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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