Siemens siprotec 7SA6, Manual

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Configuration
5-10
7SA6 Manual
C53000-G1176-C156-2
Figure 5-3 Input indications
Additionally to the predefined input and output indications new customer specific indi-
cations and even control commands for switching devices may be created.
Commands Commands are output indications that are especially designed for the output of control
signals to switchgears in the system.
G Set for each device whether it should trip 1pole, 1
1
/
2
pole or 2pole, with single or
double point indication, with or without feedback (see Table 5-1 and Figure 5-4 to
5-9). Thus the necessary quantity of the information to be processed is calculated
and the type of command is determined.
G
Allocate the available binary inputs and outputs according to the requirements.
Please observe the following:
−
The annunciations and commands of a switchgear must be allocated to binary
inputs and outputs numbered consecutively;
−
The trip command must always be located before the close command;
−
There may be restrictions due to grouping of binary inputs and outputs of a
SIPROTEC
®
-device
As soon as the type of command is defined DIGSI
®
4 allocates the necessary number
of binary outputs of a device. The corresponding outputs relays are numbered consec-
utively. This has to be observed for the assignment of the output relay to the control
functions.
Table 5-1 lists the most important command types as they are offered in the configu-
ration matrix (also refer to the paragraph “Binary Outputs for Switching Devices” in
Subsection 5.2.4). All double commands (with or without feedback) are also available
as transformer tap commands. The following figures (from 5-4 to 5-12) show timing
diagrams, control settings, and the order of relay allocations for frequently used com-
mand types.
L+
L–
e.g. mcb
L+
L–
e.g. Isolation
switch
M
Single point indication (SP) Double point indication (DP)
Binary input
(e.g. BI1)
Binary input
(e.g. BI 2)
Binary input
(e.g. BI 3)
(system)
(7SA6)
(7SA6)
(system)
Table 5-1 Most important command types
Single Command with
Single Output With 1 relay without feedback
with feedback
C_S
CF_S
Double Command with
Single Output With 2 relays without feedback
with feedback
C_D2
CF_D2
Double Command with Single
Outputs plus Common Output With 3 relays without feedback
with feedback
C_D3
CF_D3