[ws-master-slave-110104, 1, en_US]
Figure 2-3
Connecting 2 7SD80 devices via protection data interfaces
Communication Failure
The communication is continuously monitored by the devices. Single faulty data telegrams are not a direct risk
if they occur only occasionally. They are recognized and counted in the device which detects the disturbance
and can be read out as statistical information.
If several faulty or no telegrams are received, this is considered a communication disturbance. A corre-
sponding indication is issued.
Setting Notes
General
The protection interfaces connect the devices via optical fiber or copper cables. The communication is perma-
nently monitored by the devices. Address 4510
TD-DATA DISTURB
defines after which time delay the user is
informed about a faulty or missing telegram.
Once a fault has been detected in the protection interface communication, the time at address 4512
Td
ResetRemote
is started for resetting the remote signals. Please note that only the time of the device whose
remote end has failed is effective.
Protection Interface Optical Fiber
If you use an optical fiber connection, switch it
ON
or
OFF
at address 4501
PDI FO
.
Address 4502
PDI FO TER
allows you to enter the permissible maximum fault rate in percent.
Address 4503
PDI FO level
you can define the minimum receiving level.
Notes on the settings are given in the Technical Data.
Protection Interface Copper Cable Cu
If you use a copper cable connected to the voltage terminals of the device, switch it
ON
or
OFF
at address 4601
PDI Cu
.
Address 4602
PDI Cu TER
allows you to enter the permissible maximum fault rate in percent.
At address 4604
PDI Cu MAX ATT
you can set the maximum attenuation.
At address 4605
PDI Cu S/N
you can define the minimum signal/noise ratio.
At address 4603
PDI Cu mode
you can specify the transmission parameters.
Notes on the settings are given in the Technical Data.
Settings
Addr.
Parameter
Setting Options
Default Setting
Comments
4501
PDI FO
ON
OFF
ON
Protection Data Interface fibre
optic
4502
PDI FO TER
0.5 .. 20.0 %
1.0 %
PDI FO max. telegram error rate
4503
PDI FO level
-30 .. -10 dBm
-28 dBm
PDI FO min. receive level
4510
TD-DATA DISTURB
0.05 .. 2.00 sec
0.10 sec
Time delay for data disturbance
alarm
2.1.8.2
2.1.8.3
Functions
2.1 General
46
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
Summary of Contents for SIPROTEC 4 7SD80
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