Technical data

20
1MRS751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
5.1.1.3. Relay Setting Tool view
To improve usability, a REX 521 specific pull-down menu, View, with three views
has been created to the Relay Setting Tool.
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Fig. 5.1.1.3.-1 Relay Setting Tool views
The Settings view includes the parameters for setting of all the function blocks. The
Configuration view includes signalling and hardware related settings. The
parameters in the Configuration view are advised to be set during commissioning
and service because some of the parameters cause resetting of the device. See
“Appendix C: Parameters which cause reset” on page 75 for a list of these
parameters. In that case the disturbance recorder DREC will be cleared. Measured
values and registered data, for example current, digital input states, can be uploaded
by means of the Measurements & Registered Data view.
5.1.1.4. Graphical I/O Setting Tool
To make the external relay parametrization even easier, a REX 521 specific
Graphical I/O Setting Tool has been added to the Relay Setting Tool. The Graphical
I/O Setting Tool offers a user-friendly environment for better visualization and
makes it easier to get a complete overview of the settings.
The tool is used for setting input switchgroups, output switchgroups, and Alarm
LED switchgroups. Using this tool is instructed in Tools for Relays and Terminals
User's Guide (see “Related documents” on page 10).
When uploading or downloading parameters with Relay Setting Tool
by using the option All, it covers only the parameters of the selected
view (that is, Settings, Configuration, or Measurements &
Registered Data).