Sel 411L - Figure 7.3 RELAY ELEMENTS Highlighted in MAIN MENU; Table 7.1 Front-Panel Inactivity Time-Out Setting

P.7.3
Date Code 20151029 Protection Manual SEL-411L Relay
Front-Panel Operations
Front-Panel Layout
Front-Panel Inactivity Time Out
An LCD backlight illuminates the screen when you press any front-panel
pushbutton. This backlight extinguishes after a front-panel inactivity time out.
You can control the duration of the time out with relay setting FP_TO, listed in
Table 7.1.
To set FP_TO, use the SET F (set front panel) settings from any
communications port or use the front-panel branch of the
ACSELERATOR
QuickSet Settings tree view. The maximum backlight time is one hour. Obtain
this 60-minute maximum backlight time by setting FP_TO to 60 or to OFF.
When the front-panel times out, the relay displays an automatic
ROTATING
DISPLAY
, described later in this section under Screen Scrolling.
Navigating the Menus
The front panel presents a menu system for accessing metering, settings, and
control functions. Use the LCD and the six pushbuttons adjacent to the display
(see Figure 7.2) to navigate these front-panel menus.
The navigation pushbutton names and functions are the following:
➤ ESC—Escape pushbutton
➤ ENT—Enter pushbutton
➤ Left Arrow, Right Arrow, Up Arrow, and Down Arrow—Navigation
pushbuttons
Menus show lists of items that display information or control the relay. A
rectangular box around an action or choice indicates the menu item you have
selected. This rectangular box is the menu item highlight.
Figure 7.3 shows an example of the highlighted item
RELAY ELEMENTS in the
MAIN MENU. When you highlight a menu item, pressing the ENT pushbutton
selects the highlighted item.
Figure 7.3 RELAY ELEMENTS Highlighted in MAIN MENU
The Up Arrow pushbutton and Down Arrow pushbutton scroll the highlight box to
the previous or next menu selection, respectively. When there is more than one
screen of menu items, pressing Up Arrow while at the first menu item causes
the display to show the previous set of full-screen menu items, with the last
menu item highlighted. Pressing Down Arrow while at the bottom menu item
causes the display to show the next set of full-screen menu items, with the first
menu item highlighted.
Table 7.1 Front-Panel Inactivity Time-Out Setting
Name Description Range Default
FP_TO Front-panel display time-out OFF, 1–60 minutes 15 minutes
METER
EVENTS
BREAKER MONITOR
RELAY ELEMENTS
LOCAL CONTROL
SET/SHOW
RELAY STATUS
VIEW CONFIGURATION
DISPLAY TEST
RESET ACCESS LEVEL
MAIN MENU