Recorded Analog And Binary Inputs - ABB RELION REX640 Technical Manual

1MRS759142 C
8.2.3.1
8.2.3.2
REX640
Technical Manual
can be set to trigger the recording. Recorded information is stored in a nonvolatile
memory and can be uploaded for subsequent fault analysis.

Recorded analog and binary inputs

The relay's analog and binary signals for disturbance recorder can be configured with
Application Configuration in PCM600. In addition, each channel of the disturbance
recorder can be enabled or disabled by setting the Operation parameter of the
corresponding channel to "on" or "off".
All channels of the disturbance recorder that are enabled and have a valid signal
connected are included in the recording.
Triggering alternatives
The recording can be triggered by any of the following alternatives.
• Triggering according to the state change of any of the binary channels of the
disturbance recorder. The level sensitivity can be set with the Level 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 Trig recording parameter (LHMI or communication)
• 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 nonvolatile memory. In addition, every analog channel and binary
channel of the disturbance recorder has its own Channel triggered parameter. Manual
trigger has the Manual triggering parameter and periodic trigger has the Periodic
triggering parameter.
Triggering by binary channels
The input signals for the binary channels of the disturbance recorder can be formed
from any of the digital signals that can be dynamically mapped. A change in the status
of a monitored signal triggers the recorder according to the configuration and settings.
Triggering on the rising edge of a digital input signal means that the recording
sequence starts when the input signal is activated. Correspondingly, triggering on the
falling edge means that the recording sequence starts when the active input signal
resets. It is also possible to trigger from both edges. In addition, the monitored signal
can be non-triggering. The trigger setting can be set individually for each binary
channel of the disturbance recorder with the Level trigger mode parameter of the
corresponding binary channel.
Triggering by analog channels
The trigger level can be set for triggering in a limit violation situation. The limit values
can be set with the High trigger level and Low trigger level parameters of the
Section 8
Measurement functions
1333