Binary Outputs; Binary Output Matrix; Self Reset/Hand Reset; Binary Output Configuration - Siemens 7SR45 Argus User Manual

Parameters Description
Inhibit 50-1 50-1 element block
Inhibit 50-2 50-2 element block
Inhibit 51-1 51-1 element block
Inhibit 50N-1 50N-1 element block
Inhibit 50N-2 50N-2 element block
Inhibit 51N-1 51N-1 element block
Inhibit 50G-1 50G-1 element block
Inhibit 50G-2 50G-2 element block
Inhibit 51G-1 51G-1 element block
Inhibit 50LC 50LC/SOTF element block
General Alarm-1 Display General alarm-1 text
General Alarm-2 Display General alarm-2 text
Rst LEDs O/Ps Reset LED's and BO's
Trip Pulse O/P Impulse output
Inverted Inputs Input Inversion
BI-1 Pickup dly Pickup delay
BI-1 dropoff dly Dropoff delay
NOTE:
Depending on the number of binary input, the sleep mode current will increase if the binary input is connected and
energized in the sleep mode.

3.12 Binary Outputs

7SR45 self powered overcurrent and earth fault relay consists of 2 binary output which can be configured to send
commands to the switchgear units and annunciations for remote signalling of the important events and status.
3.12.1

Binary Output Matrix

Binary output can be assigned to any available functions under OUTPUT CONFIG > OUTPUT MATRIX menu.
3.12.2

Self Reset/Hand Reset

In the default mode of operation, binary outputs are self reset. If required, the outputs can be programmed to
operate as 'hand reset'. However, the hand reset functionality is applicable for protection trip signals, IRF signal,
and BI signals only.
All the supervisory signals such as low battery, general pick up, and protection healthy are always of self reset
type.
By default, the Binary Output 1 will be mapped to IRF function and it will be programmed as 'hand reset".
In the self reset condition, binary output will reset if the input current drops below the sensitivity level.
3.12.3

Binary Output Configuration

If the binary output is configured for protection trip or binary input operations it will act as "hand reset".
If the binary output is configured for other functions such as general pickup, protection healthy, and
low battery, it will act as "self reset".
© 2017 Siemens Protection Devices Limited
Table 3-9 Binary Input
Default Value
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Table 3-10 Binary Configuration
-
0.020
0.000
7SR45 Description of Operation
Min Max Step Change
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 -
0 600 s 0.01
0 600 s 0.01
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