Siemens 6MD85, Manual

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Indication Description
(_:5161:302) Status
of lay. 3 and 4
The output signal gives you information about the state of communication layers
3 and 4 (3: Network Layer, 4: Transport Layer). The following indications values
are possible:
•
no error
:
The protection interface is operating correctly.
•
Software version incompatible
:
The firmware versions of the connected devices are incompatible. Update
the firmware.
•
System mirroring
:
The protection interface is receiving its own data. Check the wiring.
•
Dev. add. incorrect
:
The device address of the partner device is incorrect. Check the settings for
parameters
Address of device 1
to
address of device n
(
_:5131:102
and following).
•
Constell. incorrect
:
The constellation settings of the devices are different. Check that the setting
for the parameter
Select constellation
is identical in all devices.
•
Const. param. incorrect
:
Check that the same setting has been made for parameter
(_:5131:122)
Lowest appearing bit rate
in all devices.
•
Diff. Param. Error
:
The line differential protection settings for the connected devices are incom-
patible. Check whether both devices are set to operate with or without line
differential protection.
The rated values of the line (parameters
(_:9001:101) Rated current
and
(_:9001:102) Rated voltage
) must be adjusted at both ends of
the line such that the internally calculated (_:9001:103) Rated apparent
power at both ends is equal.
If a transformer is installed in the line,
(_:9001:102) Rated voltage
and (_:9001:103) Rated apparent power must be adjusted at both ends such
that the internally calculated value of the parameter
(_:9001:101)
Rated current
at both ends is equal.
In order to clarify faults, each individual protection interface provides the following binary signals:
Binary Output Signal Description
(_:5161:303)
Connection broken
Signal
Connection broken
indicates that during a parameterized time (param-
eter
(_:5161:107) Disturbance alarm after
) faulty or missing tele-
grams were continuously received. If the 'Connection interrupted' indication
occurs, the affected protection interface link will be terminated. This can cause
the blocking of an active differential protection or a ring topology can change to
a chain topology.
(_:5161:316) Error
rate / min exc.
Signal
Error rate / min exc.
indicates that the set maximum error rate per
minute (Parameter
(_:5161:106) Max. error rate per min
) has been
exceeded.
(_:5161:317) Error
rate / hour exc.
Signal
Error rate / hour exc.
indicates that the set maximum error rate
per hour (Parameter
(_:5161:105) Max. error rate per hour
) has
been exceeded.
(_:5161:318) Time
delay exceeded
Signal
Time delay exceeded
indicates that the threshold value for the set
signal-transit time (Parameter
(_:5161:109) Delay time threshold
) has
been exceeded.
System Functions
3.5 Protection Communication
120 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017