Siemens 6MD85, Manual

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vidual protection functions are summarized in the Trip logic function block. The trip command that causes the
tripping in the Circuit-breaker function block is generated there.
To operate the circuit breaker, the Circuit-breaker function block provides the output signals that must be
routed to the corresponding binary outputs of the device (see
Table 5-5 ).
[loausssc-090211-01.tif, 1, en_US]
Figure 5-20 Tripping, Opening, and Closing the Circuit Breaker
Table 5-5 Description of the Output Signals
Signal Description Routing Options
Trip/open
cmd.
This signal executes all tripping and opening operations.
The
Output time
parameter affects the signal.
The signal is pending for the duration of this period, with the following
exceptions:
•
Only when switched off by the control: The signal is canceled
before expiration of the period if the auxiliary contacts report that
the circuit breaker is open before expiration of the period.
•
Only in the event of protection tripping: The signal remains active
as long as the trip command is still active after expiration of the
period (see also
5.5.6.1 Function Description ).
•
Only in the event of protection tripping: With the routing option
Only saved in the event of tripping, the signal remains pending
until it is acknowledged manually. This only applies for protection
tripping.
•
Unlatched
•
Only saved
in the event
of protec-
tion trip-
ping (not
when
opened)
Close
command
This signal executes all closing operations.
The
Output time
parameter affects the signal.
The signal is pending for the duration of this period, with the following
exception: The signal is canceled before expiration of the period if the
auxiliary contacts report that the circuit breaker is closed before expira-
tion of the period.
Normal routing
Command
active
This signal is active as long as one of the binary outputs assigned to the
signals
Trip/open cmd.
and
Close command
is active because a
switching command is being executed by the control.
Normal routing
Acquisition of Circuit-Breaker Auxiliary Contacts and Further Information
To determine the circuit breaker position, the Circuit-breaker function block provides position signals (see
next figure).
5.5.7.3
Function-Group Types
5.5 Function-Group Type Circuit Breaker, 3-Pole
216 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017