Siemens 7SR10 Argus Series, Manual

Page: 22 / 286

7SR10 Description of Operation
©2018 Siemens Protection Devices Limited Chapter 1 Page 19 of 77
2.7 Operator Interface
2.7.1 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
to 60 minutes and “Off” (backlight permanently on). Pressing any key will reactivate the display.
User-defined identifying text can be programmed into the relay by using the System config/Relay Identifier
and
System config/Circuit Identifier setting. The ‘Identifier’ texts are displayed on the LCD display in two lines at the
top level of the menu structure. The ‘Relay Identifier’ is used in communication with Reydisp to identify the relay.
By pressing the Cancel button several times will return the user to this screen.
Figure 2-6 Close up of Relay Identifier
2.7.2 LCD Indication
General Alarms are user defined text messages displayed on the LCD when mapped to binary inputs 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 are raised when a fault trigger is generated and will be logged into the Fault Data record.
2.7.3 Standard Keys
The relay is supplied as standard with seven push buttons. The buttons are used to navigate the menu structure
and control the relay functions. They are labelled:
▲
Increases a setting or moves up menu.
▼ Decreases a setting or moves down menu.
TEST/RESET ► Moves right, can be used to reset selected functionality and for LED test (at relay identifier screen).
ENTER Used to initiate and accept settings changes.
CANCEL Used to cancel settings changes and/or move up the menu structure by one level per press.
OPEN Used to execute the open of circuit breaker
CLOSE Used to execute the close of circuit breaker
NOTE:
All settings and configuration of LEDs, BI and BO can be accessed and set by the user using these keys.
Alternatively, the configuration/settings files can be loaded into the relay using ‘Reydisp’ software. When the
System Config > Setting Dependencies is ENABLED, only the functions that are enabled will appear in the
menu structure.