Siemens 7SJ85 - Closure Detection; Information List

If the following 2 conditions are met, the CB pos. recogn. prot. obj. signal is in the Closed state:
•
At least one of the connected circuit breakers signals the Closed state internally.
•
The >Disconnector open input is not active.
Closure Detection
The closure detection enables the immediate tripping of selected protection functions or protection stages
when switching to short circuit or the reduction of the responsivity. The closure detection determines whether
the protected object is switched on.
Logic
[loein6md-171012-01.tif, 1, en_US]
Figure 5-93 Logic Diagram of Closure Detection
For an applied binary input signal Detected (from Manual close function block), the indication Closure is
active.
Information List
No.
Information Data Class
(Type)
Type
Closure detec.
_:4681:500 Closure detec.:>Disconnector open SPS I
_:4681:300 Closure detec.:Closure SPS O
5.8.6
5.8.7
Function-Group Types
5.8 Process Monitor
SIPROTEC 5, Overcurrent Protection, Manual 297
C53000-G5040-C017-8, Edition 07.2017