ABB REB650, Technical Manual

Page: 285 / 504

The preprocessor function block (SMAI) calculates the residual quantities in cases
where only the three phases are connected (AI4-input not used). SMAI makes the
information 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.
12.3.6.10 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 .
12.3.6.11 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
1MRK 505 277-UUS C
Section 12
Monitoring
279
Technical Manual