P.7.6
SEL-411L Relay Protection Manual Date Code 20151029
Front-Panel Operations
Front-Panel Layout
information during the display interval. At any time during autoscrolling
mode, pressing ENT takes you to the
MAIN MENU. Pressing any of the four
navigation pushbuttons switches the display to manual-scrolling mode.
Manual-Scrolling Mode
In the manual-scrolling mode you can use the directional navigation arrow
pushbuttons to select the next or previous screen. Pressing the Down Arrow or
Right Arrow pushbuttons switches the display to the next screen; pressing the
Up Arrow or Left Arrow pushbuttons switches the display to the previous screen.
In manual-scrolling mode, the display shows arrows at the top and bottom of
the vertical scroll bar. The screen arrows indicate that you can navigate
between the different screens at will. The relay retrieves data prior to
displaying each new screen. Unlike the autoscrolling mode, the relay
continues to update screen information while you view it in the manual-
scrolling mode. To return to autoscrolling mode, press ESC or wait for a front-
panel time out.
Alarm Points
You can display messages on the front-panel LCD that indicate alarm
conditions in the power system. The relay uses alarm points to place these
messages on the LCD.
Figure 7.5 shows a sample alarm points screen. The relay is capable of
displaying as many as 66 alarm points. The relay automatically displays new
alarm points while in manual-scrolling mode and in autoscrolling mode.
While you navigate the HMI menu structure, the relay does not automatically
display the alarm points. Instead,
ALARM EVENT displays in the footer. When
you escape the HMI menu structure, the relay will display the alarm points
screen.
Figure 7.5 Sample Alarm Points Screen
The alarm point setting is an element of the SER settings. To enable an alarm
point, enable the HMI alarm parameter of the SER Point Settings listed in
Table 7.3. The format for entering the SER point data is the following comma-
delimited string:
Relay Word Bit, Reporting Name, Set State Name, Clear State Name,
HMI Alarm
Names can contain any valid ASCII character. Enclose the name within
double quotation marks. See Example 7.1 for particular information on the
format for entering SER point data.
*Circuit BK1 SF6 Gas
ALARM POINTS
Press to acknldge
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