ABB Relion 670 Series Technical Reference Manual page 981

1MRK505222-UUS C
15.10.2
15.10.3
15.10.4
Technical reference manual
disturbances. This information is used for different purposes in the short term (for
example corrective actions) and in the long term (for example functional analysis).
The event recorder logs all selected binary input signals connected to the Disturbance
report function. Each recording can contain up to 150 time-tagged events.
The event recorder information is available for the disturbances locally in the IED.
The event recording information is an integrated part of the disturbance record
(Comtrade file).
Principle of operation
When one of the trig conditions for the disturbance report is activated, the event
recorder logs every status change in the 96 selected binary signals. The events can be
generated by both internal logical signals and binary input channels. The internal
signals are time-tagged in the main processor module, while the binary input channels
are time-tagged directly in each I/O module. The events are collected during the total
recording time (pre-, post-fault and limit time), and are stored in the disturbance report
flash memory at the end of each recording.
In case of overlapping recordings, due to PostRetrig = Enabled and a new trig signal
appears during post-fault time, events will be saved in both recording files.
The name of the binary input signal that appears in the event recording is the user-
defined name assigned when configuring the IED. The same name is used in the
disturbance recorder function (DR), indications (IND) and event recorder function(ER).
The event record is stored as a part of the disturbance report information (ER, DR,
IND, TVR and FL) and managed via the local HMI or PCM600.
Events can not be read from the IED if more than one user is accessing
the IED simultaneously.
Function block
The Event recorder has no function block of it's own. It is included in the DRPRDRE
block and uses information from the BxRBDR block.
Input signals
The Event recorder function logs the same binary input signals as the Disturbance
report function.
Section 15
Monitoring
975