3.Control And Indication Of Disturbance Recorder Status; 4.Triggering; 5.Settings And Unloading; 6.Event Code Of The Disturbance Recorder - ABB REM 610 Technical Reference Manual

REM 610
4.1.10.3.
4.1.10.4.
4.1.10.5.
4.1.10.6.
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Motor Protection Relay
Technical Reference Manual
Triggering of the recorder immediately after it has been cleared or the auxiliary
voltage connected may result in a shortened total recording length. Disconnection of
the auxiliary voltage after the recorder has been triggered but before the recording
has finished, on the other hand, may result in a shortened post-triggering recording
length. This, however, will not affect the total recording length.
At a power reset, triggered recorder data will be retained in the memory provided
that it has been defined non-volatile.
Control and indication of disturbance recorder status
It is possible to control and monitor the recording status of the disturbance recorder
by writing to and reading parameters M1, M2 and V246. Reading parameter V246
will return either the value 0 or 1, indicating whether the recorder has not been
triggered or triggered and ready to be uploaded. Event code E31 will be generated
the moment the disturbance recorder is triggered. If the recorder is ready to be
uploaded, this will also be indicated by an asterisk shown in the lower right-hand
corner of the LCD when it is in the idle mode.
Writing the value 1 to parameter M2 will clear the recorder memory, restart the
storing of new data and enable the triggering of the recorder. Recorder data can be
cleared by performing a master reset, i.e. clearing indications and memorized values
and unlatching output contacts. Writing the value 2 to parameter V246 will restart
the unloading process by setting the time stamp and the first data ready to be read.
Triggering
The user can select one or several internal or digital input signals to trigger the
disturbance recorder, either on the rising or falling edge of the signal(s). Triggering
on the rising edge means that the post-triggering recording sequence will start when
the signal is activated. Correspondingly, triggering on the falling edge means that
the post-triggering recording sequence will start when the active signal is reset. The
trigger signal(s) and the edge are selected with parameters V236...V237 and
V241...V242; see tables 4.1.15-5 and 4.1.15-6. The recorder can also be triggered
manually using parameter M1.
Triggering of the disturbance recorder is only possible if the recorder has not already
been triggered.
Settings and unloading
The setting parameters for the disturbance recorder are V parameters V236...V238,
V240...V243 and V246, and M parameters M15, M18, M20 and M80...M83.
Unloading correct information from the recorder requires that M80 and M83 have
been set. Unloading is done using a PC application. The uploaded recorder data is
stored in separate files defined by the comtrade
Event code of the disturbance recorder
The disturbance recorder generates an event code on triggering (E31) and clearing
(E32) the recorder. The event mask is determined using SPA parameter V155.
1MRS 752263-MUM
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