Application and Setting Notes for the Stage
Parameter: External trip initiation
•
Default setting
(_:14551:9) External trip initiation
=
no
With the
External trip initiation
parameter, you set whether an external input signal is used to
trigger the stage.
Parameter Value
Description
no
The stage does not operate with an external input signal.
current
The stage operates with an external input signal.
If the stage operates with an external input signal, the binary input signal
>External current
must be routed in the DIGSI 5 information routing.
In this setting option, the binary input signal
>External current
is only
visible in the DIGSI 5 information routing
light
The stage operates with an external input signal.
If the stage operates with an external input signal, the binary input signal
>External light
must be routed in the DIGSI 5 information routing. In
this setting option, the binary input signal
>External light
is only
visible in the DIGSI 5 information routing
Note: When working with the
light
external trip initiation, do not select a
channel. If an additional channel is selected with this setting value, the
DIGSI 5 will signal an inconsistency.
Parameter: Operating mode
•
Default setting
(_:14551:8) Operating mode
=
current and light
With the
Operating mode
parameter, you define the basic functionality of the stage.
Parameter Value
Description
current and light
The stage operates with the input variables current and light.
The current-flow criterion ensures that the light signal originates from an
arc.
Siemens recommends using this setting value.
light only
This stage operates only with the input signal 'light' and is triggered even if
current is not measured.
This operating mode can cause a overfunction if light is detected suddenly.
Use this setting value only if the effect caused by external light signals is
impossible.
Parameter: Sensor
•
Default setting
(_:14551:11) Sensor
=
point sensor
With the
Sensor
parameter, you set which sensor type is connected to the device.
Parameter Value
Description
point sensor
A point sensor is connected to the device.
line sensor
A line sensor is connected to the device.
custom
If you select this setting option, the parameter
Threshold light
is
visible.
Siemens recommends the default setting values
point sensor
or
line
sensor
. This allows arcs to be detected reliably regardless of diffused light.
Parameter: Threshold light
•
Default setting
(_:14551:7) Threshold light
=
-20.00 dB
7.29.5
Protection and Automation Functions
7.29 Arc Protection
916
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Summary of Contents for 6MD85
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