With the Threshold light parameter, you set the light sensitivity. If you set Threshold light to a
smaller value, the sensitivity increases. If you set Threshold light to a higher value, the sensitivity
decreases. If the sensors even pick up in case of a switching arc of the circuit breaker, set the Threshold
light parameter to a higher value.
Siemens recommends the default settings for point or line sensors.
Set the parameter Threshold light manually only if you have special default settings for light sensitivity.
Parameter: Channel
•
Default setting (_:14551:10) Channel = No channel is selected
With the Channelparameter, you select which sensor channel the stage uses.
If the Arc protection function has several stages, a different channel must be selected for each stage.
For parameter Channel, the selection texts are identical to the name of the arc-protection module and its
channels.
Settings
Addr. Parameter C Setting Options Default Setting
General
_:2311:3 General:Threshold I> 1 A @ 100 Irated 0.030 A to 35.000 A 2.000 A
5 A @ 100 Irated 0.15 A to 175.00 A 10.00 A
1 A @ 50 Irated 0.030 A to 35.000 A 2.000 A
5 A @ 50 Irated 0.15 A to 175.00 A 10.00 A
1 A @ 1.6 Irated 0.001 A to 1.600 A 2.000 A
5 A @ 1.6 Irated 0.005 A to 8.000 A 10.000 A
_:2311:4 General:Threshold 3I0> 1 A @ 100 Irated 0.030 A to 35.000 A 1.000 A
5 A @ 100 Irated 0.15 A to 175.00 A 5.00 A
1 A @ 50 Irated 0.030 A to 35.000 A 1.000 A
5 A @ 50 Irated 0.15 A to 175.00 A 5.00 A
1 A @ 1.6 Irated 0.001 A to 1.600 A 1.000 A
5 A @ 1.6 Irated 0.005 A to 8.000 A 5.000 A
Stage 1
_:14551:1 Stage 1:Mode
•
off
•
on
•
test
off
_:14551:2 Stage 1:Operate &
flt.rec. blocked
•
no
•
yes
no
_:14551:9 Stage 1:External trip
initiation
•
no
•
current
•
light
no
_:14551:8 Stage 1:Operating mode
•
light only
•
current and light
current and light
_:14551:11 Stage 1:Sensor
•
point sensor
•
line sensor
•
custom
point sensor
_:14551:7 Stage 1:Threshold light -34.00 dB to -10.00 dB -20.00 dB
_:14551:10 Stage 1:Channel Setting options depend on
configuration
7.29.6
Protection and Automation Functions
7.29 Arc Protection
SIPROTEC 5, High-Voltage Bay Controller, Manual 917
C53000-G5040-C015-9, Edition 11.2017
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