If external close commands are possible (actuation of the circuit breaker by other devices), which are not
intended to prompt detection of a manual closure (for example, with an external reclosing device), this can be
ensured in 2 ways:
•
The input signal is connected in such a way that it is not activated in the event of external close
commands.
•
The external close command is connected to the blocking input >Block manual close for manual
closure detection.
Parameter: Action time
•
Recommended setting value (_:101) Action time = 300 ms
In order to ensure independence from manual activation of the input signal, the detection function is
extended for a defined length of time using the parameter Action time.
Siemens recommends an action time of 300 ms.
Parameter: CB open dropout delay
•
Default setting (_:102) CB open dropout delay = 0 ms
With the CB open dropout delay parameter, you can maintain the effectiveness of internal indication
CB
open-circuited
for the set time. If the input signal >Input becomes active after external delayed manual
closure, the indication
(_:300) Detected
is output as long as the dropout delay is active.
Settings
Addr.
Parameter C Setting Options Default Setting
Manual close
_:101 Manual close:Action time 0.01 s to 60.00 s 0.30 s
Information List
No.
Information Data Class
(Type)
Type
Manual close
_:501 Manual close:>Block manual close SPS I
_:500 Manual close:>Input SPS I
_:300 Manual close:Detected SPS O
5.7.9.3
5.7.9.4
Function-Group Types
5.7 Function-Group Type Circuit Breaker
SIPROTEC 5, Overcurrent Protection, Manual 293
C53000-G5040-C017-8, Edition 07.2017
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