Binary Signals - ABB Relion Technical Manual

1MRK 502 048-UUS A
14.4.6.10
14.4.6.11
Technical manual
available as a group signal output, phase outputs and calculated residual output (AIN-
output). In situations where AI4-input is used as an input signal the corresponding
information is available on the non-calculated output (AI4) on the SMAI function block.
Connect the signals to the AxRADR accordingly.
For each of the analog signals, Operation = Enabled means that it is recorded by the
disturbance recorder. The trigger is independent of the setting of Operation, and triggers
even if operation is set to Disabled. Both undervoltage and overvoltage can be used as
trigger conditions. The same applies for the current signals.
If Operation = Disabled, no waveform (samples) will be recorded and reported in graph.
However, Trip value, pre-fault and fault value will be recorded and reported. The input
channel can still be used to trig the disturbance recorder.
If Operation = Enabled, waveform (samples) will also be recorded and reported in graph.
The analog signals are presented only in the disturbance recording, but they affect the
entire disturbance report when being used as triggers.

Binary signals

Up to 96 binary signals can be selected to be handled by disturbance report. The signals
can be selected from internal logical and binary input signals. A binary signal is selected
to be recorded when:
• the corresponding function block is included in the configuration
• the signal is connected to the input of the function block
Each of the 96 signals can be selected as a trigger of the disturbance report (Operation =
Operation—>TrigDR =Disabled). A binary signal can be selected to activate the yellow
(PICKUP) and red (TRIP) LED on the local HMI (SetLED = Disabled/Pickup/Trip/
Pickup and Trip).
The selected signals are presented in the event recorder, sequential of events and the
disturbance recording. But they affect the whole disturbance report when they are used as
triggers. The indications are also selected from these 96 signals with local HMI
IndicationMask=Show/Hide.
Trigger signals
The trigger conditions affect the entire disturbance report, except the sequential of events,
which runs continuously. As soon as at least one trigger condition is fulfilled, a complete
disturbance report is recorded. On the other hand, if no trigger condition is fulfilled, there
is no disturbance report, no indications, and so on. This implies the importance of
choosing the right signals as trigger conditions.
Section 14
Monitoring
573