Control And Target Of Disturbance Recorder Status; Triggering; Settings And Unloading - ABB REF610 Technical Reference Manual

1MRS755535
5.1.11.3.
5.1.11.4.
5.1.11.5.
Feeder Protection Relay
Technical Reference Manual - ANSI Version
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, does not affect the total recording length.
At a power reset, triggered recorder data is retained in the memory provided that it
has been defined non-volatile.

Control and target of disturbance recorder status

It is possible to control and monitor the recording status of the disturbance recorder
by writing to and reading SPA parameters M1, M2 and V246. Reading SPA
parameter V246 returns either the value 0 or 1, indicating whether the recorder has
not been triggered or triggered and ready to be uploaded. Event code E31 is
generated the moment the disturbance recorder is triggered. If the recorder is ready
to be uploaded, this is also indicated by an asterisk shown in the lower right-hand
corner of the LCD when it is in the idle mode. Target can also be routed to
programmable LEDs.
Writing the value 1 to SPA parameter M2 clears the recorder memory and enables
the triggering of the recorder. Recorder data can be cleared by performing a master
reset, that is, clearing targets and memorized values and unlatching output contacts.
Writing the value 2 to SPA parameter V246 restarts 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 starts when the
signal is activated. Correspondingly, triggering on the falling edge means that the
post-triggering recording sequence starts when the active signal is reset.
The trigger signal(s) and the edge are selected with SPA parameters V236...V237
and V241...V242; see Table 5.1.17.-6 and Table 5.1.17.-7. The recorder can also be
triggered manually with SPA parameter M1.
Triggering of the disturbance recorder is only possible if the recorder is not already
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.
REF610 REF610
79