Keypad - Siemens Reyrolle 7SR45 Argus Device Manual

Device Functionality
2.1 Front Fascia
•
Battery profile
•
Auxiliary-power status
•
Primary and secondary current values of each phase and earth
•
General alarms
The LCD displays the stored fault information to the operator. When any fault condition occurs, the relay
displays the latest fault information on the LCD.
General alarms are user-defined text messages displayed on the LCD when mapped to binary inputs. Up to 4
general alarms can be programmed, each triggered from 1 or more inputs. Each general alarm also generates
an event.
If the 7SR45 Argus Relay is powered on with phase CT input and the current is more than 0.4 ⋅ I
or 0.14 ⋅ I (3 phases), the backlight turns on automatically. If the 7SR45 Argus Relay is energized with
rated
current less than the defined limits, the backlight does not turn on.
If the 7SR45 Argus Relay is powered on by inserting a USB cable, the backlight turns on automatically. The
backlight can be turned off manually by pressing the backlight key. If you do not perform any activity in the
HMI for more than 30 s, the backlight turns off automatically to save energy.
In the phase CT power mode, the 7SR45 Argus Relay periodically monitors whether sufficient current is avail-
able to turn on the backlight.
In the USB or battery power mode, if the backlight is already turned on and if the phase CT input is provided,
the backlight turns off due to the switching of the power mode from USB or battery to CT power. If sufficient
current is available then the backlight can be turned on again.
For more information about the power source, refer to the Modes of Operation chapter in the 7SR45 Oper-
ating Manual.

Keypad

2.1.3
The 7SR45 Argus Relay keypad consists of 5 standard keys for navigation and for editing the values. The
standard keys are used to navigate the menu structure and configure the relay functions.
2 additional keys are available for LCD backlight and battery mode.
The keys are used for the following functions:
•
To display and edit the relay settings
•
To display the relay instrumentation and fault data
•
To reset the relays output and LEDs
Keys
20
Description
This push-button is used to navigate the menu structure or to increase the
parameter value in the edit mode.
This push-button is used to navigate the menu structure or to decrease the
parameter value in the edit mode.
This push-button is used to reset the fault indication on the fascia. This push-
button is also used for selecting the menu or selecting parameter values in
the edit mode. By using this push-button, you can acknowledge the LEDs,
binary output, and trip flag indication.
(1 phase)
rated
Reyrolle, 7SR45, Device Manual
C53000-G7040-C101-2, Edition 09.2020