Table 8: Analog input interface
Hardware module
instance
Hardware channel Usage
AIM_2 CH1 Line-side current, IL1
AIM_2 CH2 Line-side current, IL2
AIM_2 CH3 Line-side current, IL3
AIM_2 CH4 Differential neutral current, I0
AIM_2 CH5 Neutral-side current, IL1_N
AIM_2 CH6 Neutral-side current, IL2_N
AIM_2 CH7 Neutral-side current, IL3_N
AIM_2 CH8 Line-side voltage, U1
AIM_2 CH9 Line-side voltage, U2
AIM_2 CH10 Line-side voltage, U3
3.2.4 Preprocessing blocks and fixed signals
The analog current and voltage signals coming to the IED are processed by
preprocessing blocks. A preprocessing block with two different task times is
available. All the function blocks functioning at 3 ms task time must be connected
with a preprocessor operating at 3 ms. Similarly, all the function blocks functioning at
10 ms task time must be connected with a preprocessor operating at 10 ms.
The preprocessor calculates various quantities based on an adaptive DFT. The
adaptive DFT requires a reference frequency for performing calculations. In this
configuration, the voltage signals are taken as reference for calculating various phase-
side and neutral-side current quantities.
See the technical manual for details on frequency adaptive.
A fixed signal block providing logical TRUE and FALSE output is used, and
connected internally to other functional blocks as needed.
3.2.5 Control functions
3.2.5.1 Generator bay control QCCBAY
Bay control is used for handling the selection of the operator place per bay. It provides
blocking functions that can be distributed to different apparatus within a bay. Bay
control sends information about the PSTO and blocking conditions to other functions
within the bay, such as to switch control functions.
Section 3 1MRS757582 C
REG630 variants
28 REG630
Application Manual
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