Identification; Functionality - ABB RELION SMU615 Technical Manual

Measurement functions
7.2.1

Identification

Function description
Disturbance recorder
7.2.2

Functionality

The merging unit is provided with a disturbance recorder featuring up to 12 analog
and 64 binary signal channels.
The analog channels can be set to trigger the recording function when the
measured value falls below or exceeds the set values. The binary signal channels
can be set to start a recording either on the rising or the falling edge of the binary
signal or on both.
By default, the binary channels are set to record external or internal signals, for
example, the start or trip signals of the merging unit stages, or external blocking
or control signals. Binary signals, such as protection start and trip signals, or an
external control signal via a binary input, can be set to trigger the recording.
Recorded information is stored in a nonvolatile memory and can be uploaded for
subsequent fault analysis.
7.2.2.1 Recorded analog inputs
The user can map any analog signal type of the merging unit to each analog channel
of the disturbance recorder by setting the
corresponding analog channel. In addition, the user can enable or disable each
analog channel of the disturbance recorder by setting the
the corresponding analog channel to "on" or "off".
All analog channels of the disturbance recorder that are enabled and have a valid
signal type mapped are included in the recording.
7.2.2.2 Triggering alternatives
The recording can be triggered by any or several of the following alternatives:
• Triggering according to the state change of any or several of the binary channels
of the disturbance recorder. The user can set the level sensitivity with the
trigger mode parameter of the corresponding binary channel.
• Triggering on limit violations of the analog channels of the disturbance recorder
(high and low limit)
• Manual triggering via the
• Periodic triggering.
Regardless of the triggering type, each recording generates the Recording started
and Recording made events. The Recording made event indicates that the recording
has been stored to the non-volatile memory. In addition, every analog channel
and binary channel of the disturbance recorder has its own
parameter. Manual trigger has the
has the
218
Trig recording parameter (communication)
Periodic triggering parameter.
IEC 61850 IEC 60617
identification identification
RDRE DR
Channel selection parameter of the
Manual triggering parameter and periodic trigger
1MRS758407 C
ANSI/IEEE C37.2
device number
DFR
Operation parameter of
Level
Channel triggered
SMU615
Technical Manual