Binary Inputs - Siemens Reyrolle 7SR45 Argus Device Manual

Device Functionality

2.2 Binary Inputs

2.2

Binary Inputs

Overview
The binary inputs (BI) are optocouplers operated from a suitably rated AC/DC power supply.
The device variant with AC/DC power supply has binary inputs with an operating threshold of AC/DC 88 V.
Devices with DC auxiliary power supply have binary inputs with a threshold of DC 19 V.
The status of BI can be viewed via LCD or Reydisp Evolution software or SCADA.
The 7SR45 Argus Relays are available with 2 or 4 binary inputs. You can assign any binary input to any of the
available functions such as inhibits, binary outputs, reset flags, and general alarms under INPUT CONFIG >
INPUT MATRIX. The binary input can also be mapped to operate the pulse output in the presence of auxiliary
power supply/CT input.
Pickup (PU) and Dropoff (DO) time delays are associated with each binary input. Where no pickup delay has
been applied, the input may pick up due to induced AC voltage on the wiring connections (for example, cross
site wiring). The default pickup time of 20 ms provides AC immunity.
Each input can be configured independently. Each input can be logically inverted to facilitate integration of
the relay within the user scheme. When inverted, the relay indicates that the BI is triggered when no binary
input voltage is applied. Inversion occurs before the PU and DO time delay.
Binary inputs can be configured for instantaneous operation from DC 19 V power supply by setting the pickup
timer to 0 ms and the dropout timer to 25 ms.
Each binary input can be assigned to any binary output and it allows the relay to provide panel indications and
alarms.
Binary Input Logic
[lo_binary-input, 1, en_US]
Figure 2-5
Binary Input Details
Table 2-3
Parameters
Inhibit 50-1
Inhibit 50-2
Inhibit 51-1
Inhibit 50N-1
Inhibit 50N-2
Inhibit 51N-1
26
Binary Input Logic
Binary Input
Description
50-1 element block
50-2 element block
51-1 element block
50N-1 element block
50N-2 element block
51N-1 element block
Default Value Min
– –
– –
– –
– –
– –
– –
C53000-G7040-C101-2, Edition 09.2020
Max Step Change
1 –
1 –
1 –
1 –
1 –
1 –
Reyrolle, 7SR45, Device Manual