ABB REB500 - LCD Backlight; Buttons

1MRK 500 124-UEN Section 4
Local HMI
Operation Manual 75
Distributed busbar protection REB500
4.3.5 LCD backlight
If none of the buttons are operated for a time corresponding to the backlight
timeout, the display backlight switches off and the main menu is displayed with the
cursor at the topmost menu position. It switches on again automatically as soon as
a button is pressed.
The currently configured backlight supervision timeout can be viewed and
modified in menu “Display Settings”.
4.3.6 Buttons
Table 18 lists the nine supported buttons. They are used primarily to navigate
through the menu structure. Any of them switches the display backlight on again if
it was switched off.
Table 18 Local HMI – Used Buttons
Button Name Purpose
Up Move up and down in menu tree and in pages.
Move selection in dialogs and alarm panel.
Scroll active digits, characters, or enumerators of a parameter when entering
a new setting value.
Down
Left Move left and right in menu tree (change menu tree level) and in pages.
Change the active digit or character in parameter when entering a new value.
Right
Enter Enter the setting mode of a parameter.
Confirm a new value of a setting parameter.
Confirm selection in dialogs.
Escape Cancel currently ongoing operation.
Menu Navigate directly to the main menu.
Clear Navigate to the view for clearing or acknowledging alarms, trips and LEDs.
Multipage At first push it navigates to the alarm page. At second push it navigates to
the alarm LED panel, which displays the text associated with the
corresponding signalization LED on the right panel side.
For setting the LED signals see Section 3.6.6