Figure 2.5-3 Typical Relay Identifier Lcd Text - Siemens 7SR18 Solkor Manual

Liquid Crystal Display (LCD)
A 4-line by 20-character alpha-numeric liquid crystal display indicates settings, instrumentation, fault data and
control commands.
To conserve power the display backlighting is extinguished when no buttons are pressed for a user defined
period. The 'backlight timer' setting within the "SYSTEM CONFIG" menu allows the timeout to be adjusted from 1
minute to 60 minutes and "Off" (backlight permanently on). Pressing any key will re-activate the display.
The LCD contrast can be adjusted using a flat blade screwdriver to turn the screw located below the contrast
symbol . Turning the screw clockwise increases the contrast, anti-clockwise reduces the contrast.
User defined indentifying text can be programmed into the relay using the System config/Relay Identifier and
System config/Circuit Identifier setting. The 'Identifier' texts are displayed on the LCD display, over two lines, at
the top level of the menu structure. The 'Relay Identifier' is used in communication with Reydisp to identify the
relay. Pressing the Cancel button several times will always return the user to this screen.
LCD Indication
General Alarms are user defined text messages displayed on the LCD when mapped to binary or virtual inputs.
Up to six general alarms of 16 characters can be programmed, each triggered from one or more input. Each
general alarm will also generate an event.
If multiple alarms are activated simultaneously the messages are displayed on a separate page in a rolling display
on the LCD. The System Config>General Alarm Alert setting Enabled/Disabled allows the user to select if the
alarms are to be displayed on the LCD when active.
All general alarms raised when a fault trigger is generated will be logged into the Fault Data record.
Standard Keys
The relay is supplied as standard with five pushbuttons. The buttons are used to navigate the menu structure and
control relay functions. They are labelled: -
▲
▼
TEST/RESET►
ENTER
CANCEL
NOTE: All settings and configuration of LEDs, BI and BO can be accessed and set by the user using
these keys. Alternatively configuration/settings files can be loaded into the relay using 'Reydisp'. When
the System Config>Setting Dependencies is ENABLED, only the functions that are enabled will
appear in the menu structure.
Unrestricted ©2018 Siemens Protection Devices Limited

Figure 2.5-3 Typical Relay Identifier LCD Text

Increases a setting or moves up menu.
Decreases a setting or moves down menu.
Moves right, can be used to reset selected functionality and for LED test (at
relay identifier screen).
Used to initiate and accept settings changes.
Used to cancel settings changes and/or move up the menu structure by one
level per press.
7SR18 Description Of Operation
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