Switching Sequences
Overview of Functions
Switching sequences may be running inside the device that switch the switchgear automatically in a prespeci-
fied sequence.
A switching sequence consists of a special function block Switching sequence (Swi. seq.) from the DIGSI 5
Library and the project-specific list of the switching commands that are generated in the CFC.
Function Description
The function block Switching sequence is located in folder User-defined functions in the DIGSI 5 Library.
[scudeffb-150816-01, 1, en_US]
Figure 6-98 Function block Switching Sequence in the Library
These function blocks can be used in the information matrix on the highest level (level of the function groups)
or in a user-defined function group.
One Switching sequence function block is used per switching sequence. The function block is the interface
for controlling and monitoring the condition of the CFC switching sequence. The task of the function block is
to verify the relative conditions for control commands, for example, switching authority, interlocking condi-
tions, etc. You can connect the signals of the function block with the CFC chart. They start and stop the
switching sequence and provide data about the status of the switching sequence (see Figure 6-99). The CFC
chart is used to activate the switching device that must be switched. The CFC blocks define, among other
things, the switching devices that must be switched.
6.5
6.5.1
6.5.2
Control Functions
6.5 Switching Sequences
SIPROTEC 5, High-Voltage Bay Controller, Manual 425
C53000-G5040-C015-9, Edition 11.2017
To Next Page
Loading...
