8.2.1.1 Recorded analog inputs
The user can map any analog signal type of the IED to each analog channel of the
disturbance recorder by setting the Channel selection parameter of the
corresponding analog channel. In addition, the user can enable or disable each
analog channel of the disturbance recorder by setting the Operation parameter of
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.
8.2.1.2 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 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 events through state
changes of the Recording started, Recording made and Recording stored status
parameters. The Recording stored parameter 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 Channel triggered parameter.
Manual trigger has the Manual triggering parameter and periodic trigger has the
Periodic triggering parameter.
Triggering by binary channels
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,
if preferred, 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 user can
set the limit values with the High trigger level and Low trigger level parameters of
the corresponding analog channel. Both high level and low level violation
triggering can be active simultaneously for the same analog channel. If the duration
Section 8 1YHT530004D05 D
Measurement functions
650 615 series
Technical Manual
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