Schweitzer Engineering Laboratories SEL-311L, Instruction Manual, Page: 500 / 734

11-14 Front-Panel Interface Date Code 20010625
SEL-311L Instruction Manual
Settings] in Section 10: Line Current Differential Communications and Serial Port
Communications and Commands ).
For more detailed information on the logic behind the rotating default display, see Rotating
Default Display in Section 7: Inputs, Outputs, Timers, and Other Control Logic .
Scroll Lock Control of Front Panel LCD
The rotating default display can be locked on a single screen. (See Rotating Default Display in
Section 7: Inputs, Output, Timers, and Other Control Logic ). Access the scroll lock control
with the OTHER push-button.
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Select LCD for Scroll Lock Control mode. The rotating display will then appear, and the scroll
mode reminder screen will appear every 8 seconds for 1 second as a reminder that the display is
in Scroll Lock Control mode.
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Stop Scrolling (Lock)
When in the Scroll Lock Control mode, press the SELECT key to stop display rotation.
Scrolling can be stopped on any of the display point screens, or on the current-meter display
screen. While rotation is stopped, the active display is updated continuously so that current or
display point changes can be seen. If no button is pressed for eight seconds, the reminder
message will appear for 1 second, followed by the active screen.
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Restart Scrolling (Unlock)
The SELECT key unlocks the LCD and resumes the rotating display.
Single Step
From the Scroll Locked state, single-step through the display screens, by pressing the SELECT
key twice. Wait for the first press to display the next screen as the active display, then press the
SELECT key a second time to freeze scrolling.