Position Evaluation Pos_Eval; Identification; Functionality; Function Block - ABB RET650 Technical Manual

1MRK 504 135-UEN A
12.2.9
12.2.9.1
12.2.9.2
12.2.9.3
12.2.9.4
Technical manual

Position evaluation POS_EVAL

Identification

Function description
Position evaluation

Functionality

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.

Function block

POS_EVAL
POSITION OPENPOS
CLOSEPOS
IEC09000079_1_en.vsd
IEC09000079 V1 EN
Figure 147: POS_EVAL function block

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
IEC 61850
identification
POS_EVAL
POS_EVAL
POSITION OPENPOS
CLOSEPOS
Output OPENPOS
Good
Good
Good
Good
Invalid
Oscillatory
Section 12
Control
IEC 60617 ANSI/IEEE C37.2
identification device number
- -
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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