HMI Signal Name:
Status
Description
RTE
READY / FAIL
This signal will be active if the
Runtime Engine failed to do some
actions with the application threads.
The actions can be loading of settings
or parameters for components,
changing of setting groups, loading or
unloading of application threads.
IEC61850
READY / FAIL
This signal will be active if the IEC
61850 stack did not succeed in some
actions like reading IEC 61850
configuration, startup etc.
LMD
READY / FAIL
LON network interface, MIP/DPS, is in
an unrecoverable error state.
LDCMxxx
READY / FAIL
Line Differential Communication Error
status
Also the internal signals, such as INT--FAIL and INT--WARNING can be connected to binary
output contacts for signalling to a control room.
In the IED Status - Information, the present information from the self-supervision function can
be viewed. Indications of failure or warnings for each hardware module are provided, as well as
information about the external time synchronization and the internal clock. All according to
. Loss of time synchronization can be considered as a warning only. The IED has full
functionality without time synchronization.
When settings are changed in the IED, the protection and control applications restart in order
to take effect of the changes. During restart, internal events get generated and Runtime App
error will be displayed. These events are only indications and will be for short duration during
the restart.
IED will not be operational during applications restart.
11.2.2
Using front-connected PC
M11763-203 v6
When an internal fault has occurred, extensive information about the fault can be retrieved
from the list of internal events available in the SMS part:
TRM-STAT TermStatus - Internal Events
The list of internal events provides valuable information, which can be used during
commissioning and fault tracing.
The internal events are time tagged with a resolution of 1ms and stored in a list. The list can
store up to 40 events. The list is based on the FIFO principle, when it is full, the oldest event is
overwritten. The list cannot be cleared and its content cannot be erased.
The internal events in this list not only refer to faults in the IED, but also to other activities,
such as change of settings, clearing of disturbance reports, and loss of external time
synchronization.
The information can only be retrieved from the Parameter Setting software package. The PC
can be connected either to the port at the front or at the rear of the IED.
These events are logged as internal events.
1MRK 505 385-UEN C
Section 11
Troubleshooting
Breaker protection REQ650
107
Commissioning manual
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