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2 Design
2.1 Operator interface
14
PXR Electronic trip unit
01/21 MN012005EN
www.eaton.com
In addition to the display, three indicator and navigation buttons enable the
selection of certain configurations and allow users to determine the
information to be shown on the display.
Table 5: Indicator/navigation buttons
Even before the display is active, the trip unit is already in operation and the
protection functions are activated. The protection functions are set as
absolute values via the display. Depending on the type of trip unit, the main
menu will contain different sub-menus. A menu item can be called up by
selecting the corresponding sub-menu. To do this, press the up arrow or
down arrow button and then the enter button. If no button is pressed for
some time, the screensaver will automatically be activated, and will remain
on. The screensaver displays a summary of the most important settings and
data readings. Use the arrow keys to switch between the different displays
in screensaver mode. Press the enter button to return to the main menu.
The status LED indicates if the trip unit is ready for operation. During normal
operation, this LED will flash green.
Button
Description
Up arrow button
This button is used to move up in the navigation menu, or to set a
value to higher.
Down arrow button
This button is used to move down in the navigation menu, or to set a
value to lower.
Enter button
This button is used to enter the navigation menu, to call up a specific
setting or to return to the previous menu item.
→
Also see
chapter 12, “PXR25 Navigation menu”, page 161
for a graphical representation of the navigation menu.
Содержание Power Xpert PXR 10
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Страница 170: ...12 PXR25 Navigation menu 164 PXR Electronic trip unit 01 21 MN012005EN www eaton com ...