Section 2: Hardware Description; General; Front Fascia; Front Fascia With Flag Output - Siemens 7SR45 Argus User Manual

Section 2: Hardware Description

2.1

General

The structure of the 7SR45 Argus relay is based on the compact hardware platform. The 7SR45 Argus relay is
supplied in a non draw-out 4U high size 4 case. The hardware design provides a commonality between the
products and components across the range of relays.
The 7SR45 Argus Relay is assembled from the following modules:
1. Front Fascia with 9 non-programmable LEDs
2. Processor Module
3. Current Analogue
4. Input Module
5. Output Module
6. Power Supply Module
7. Rear Port Communications Module (Available with dual powered model)
2.2

Front Fascia

The front fascia is an integral part of the relay and allows the user to access all the push buttons and performs the
setting changes and control actions. The fascia provides an option to reset the fault data display, latched binary
outputs, and LEDs by using the TEST/RESET ► button. The front fascia contains predefined LED list which
provides the information about the LED indicators.
2.2.1

Front Fascia with Flag Output

©2018 Siemens Protection Devices Limited
Figure 2-1 7SR45 Argus Relay Front Fascia with Flag Output
Chapter 1 - 7SR45 Description of Operation
Chapter 1 Page 13 of 48