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6 - 15
Siemens AG ⋅ January 1999
A
1 1 P I L O T
W I R E S U P .
"
[1600]
Start of the block "Pilot wire monitoring"
A
1 1 P W . S U P
O F F
B
O N
[1601]
Pilot wire monitoring
switched OFF
switched ON
A
1 1 S T A T N .
S L A V E
Y
B
[1602]
Station ID for data traffic
SLAVE - slave transmitter (answers only)
M A S T E R
MASTER - master transmitter (starts with data trafĆ
fic)
A
1 1 D I F . B L
O N
Y
B
[1603]
Blocking of the line differential protection after
detecting wire failure
switched ON
O F F
switched OFF
A
1 1 T – D i B l
5 s
Y
[1604]
Delay of the message after a fault detected by the
pilot wire monitoring
smallest setting value: 1 s............
largest setting value: 60 s.............
6.3.6 Settings for the remote tripping
The line differential protection has an integrated reĆ
mote tripping function in the version
7SD600K-KKKKK-2 and 7SD600K-KKKKK-3 (with pilot
wire monitoring, transfer tripping and remote tripĆ
ping). This can be used for remote tripping of the
other end of the line by a signal generated outside the
7SD600, e.g. by a circuit-breaker failure protection.
The trip command is then fed to the device by a biĆ
nary input to which the message 3306 >R-Trip is to
be marshalled.
It is a precondition is that during configuring of the
device scope (section 5.4.2) in addr.
00PW.MON=AVAILABLE is configured.
The parameters for processing the received signal are
set in block 13 (see section 6.3.7).
The inter trip should not be confused with the transĆ
fer tripping which is an integral part of the differential
protection function.
The inter trip operates with the same AF signal
(2000 Hz) as the pilot wire monitoring, but with a difĆ
ferent pulse code. The signals can only be transmitĆ
ted in one direction at a certain time.
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