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Doc N°
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Apparatus
Scale
Page No
1SDH000587R0002
3.4.2. Push-buttons
A push-button panel with 4 buttons is used to access and surf the menus on the display of the protection release. There is also
an independent button at the side of the display, with various functions (iTest).
Key
Name
Description
ESC
- Press ESC from the default page to access the main menu
- Press ESC from within the menus to return to the previous level
ENTER
- Press ENTER from within the menus to access the selected level or parameter
- Press ENTER to confirm the option selected
UP
- Press UP or DOWN from the default page to access the pages with the available measurements (cur-
rent values and, if the PR330/V module is installed, also the voltage and active, reactive and apparent
power values)
- Press UP or DOWN within the menus to scroll the menu options
- Press UP or DOWN within the parameter or setting areas to change their values
DOWN
iTest
- Press iTest from the default page to access the area with the information pages concerning the pro-
tection release, the circuit-breaker and the last trip recorded.
- Press iTest after the CB has opened owing to an electronic protection, to reset the TRIP state of the
protection release (the display is redirected to the default page and the SW register corresponding to
Trip is reset)
- Press iTest when the protection release is off to obtain a description of the last event that led to the
protection release being shut off (function available within 48h from shut-off).
WARNING: When parameters whose adjustment includes a large number of options or values are edited, the UP
or DOWN buttons can be pressed and held down so as to scroll through the options faster and speed up the
editing operations.
3.4.3. Display
PR332/P and PR333/P are equipped with a 128x64 pixel graphic LCD display where the operator can view measurements and
signals, and access the menus with all the settings.
The degree of contrast of the menu display can be adjusted by selecting the Settings menu and Display Contrasto parameter.
The display has 2 operating modes (the conditions are described in par. 1.3.8):
- Low Power: the display is fixed and appears as shown in the figure below:
1
2
3
4
5
- Full Power: various menus and information areas can be accessed with the buttons in this configuration: the main page is dis-
played (default page) during normal operation, and appears as shown in the figure below:
6
2
3
7
5
The measurements area or the menu area are accessed from the default page. All the options within the menu are displayed as
shown in the figure below:
2
8
9
10
11
5
Access to the menus and the push-button panel is active in the Full Power mode. Consult the dedicated chapter for details about
how to browse the menus (See par. 1.5 User menus).
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