ABB REG670 - Page 975

IEC10000029-1-en.vsd
A3RADR
A2RADR
A1RADR
SMAI
AI1
AI2
AI3
AI4
AI3P
^GRP2L1
^GRP2L2
^GRP2L3
Block
^GRP2N
INPUT1
INPUT2
INPUT3
INPUT4
INPUT5
INPUT6
...
A4RADR
INPUT31
INPUT32
INPUT33
INPUT34
INPUT35
INPUT36
...
INPUT40
Internal analogue signals
External
analogue
signals
AIN
Type
IEC10000029 V1 EN
Figure 446: Analog input function blocks
The external input signals will be acquired, filtered and skewed and (after
configuration) available as an input signal on the AxRADR function block via the
SMAI function block. The information is saved at the Disturbance report base
sampling rate (1000 or 1200 Hz). Internally calculated signals are updated according
to the cycle time of the specific function. If a function is running at lower speed than
the base sampling rate, Disturbance recorder will use the latest updated sample until
a new updated sample is available.
If the IED is preconfigured the only tool needed for analog configuration of the
Disturbance report is the Signal Matrix Tool (SMT, external signal configuration). In
case of modification of a preconfigured IED or general internal configuration the
Application Configuration tool within PCM600 is used.
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 = On 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 Off. Both undervoltage and overvoltage can be used
as trigger conditions. The same applies for the current signals.
1MRK502052-UEN B Section 16
Monitoring
969
Technical manual