Configuration
5-3
7SA6 Manual
C53000-G1176-C156-2
Figure 5-1 Device Configuration dialogue box in DIGSI
®
4 — example
Before closing the dialogue box, transfer the modified functional setting to the relay by
clicking on the item DIGSI → Device. The data is stored in the relay in a non-volatile
memory buffer.
The configured functional scope can be viewed at the front of the relay itself, but can-
not be modified there. The settings associated with the functional scope can be found
in the MAIN MENU under → Settings → Device Config.
Special Cases Most settings are self-explanatory. Special cases are described below.
Each device (depending on the version ordered) can feature one or two protection
data interfaces for communicating the protection signals. In address 145 you
determine if protection data interface P. INTERFACE 1 is to be used. For a protected
object with two ends each device requires at least one protection data interface. For
more ends it must be guaranteed that all associated devices are connected with each
other either directly or via other devices. For more detail on this topic read Section 6.4,
Communication Topology.
If the setting group change-over function is used, the setting in address 103 Grp
Chge OPTION must be set to Enabled. In this case, it is possible to apply up to four
different groups of function parameters (refer also to Subsection 6.1.2). During normal
operation, a convenient and fast switch-over between these setting groups is possible.
The setting Disabled implies that only one function parameter setting group can be
applied and used.
Address 110 Trip mode is only applicable for devices that can trip single-pole or
three-pole. Set 1-/3pole if single-pole tripping is also desired, i.e. if 1pole or
1-/3pole automatic reclosure is used. A prerequisite is that the device is provided with
the internal automatic reclosure function or that an external automatic reclosure is
used. Furthermore the circuit breaker is suited for single-pole control.
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