parameters where the type of channel is set, the primary and secondary values from
VTs and CTs and for Current Transformers the WYE point location (line side or
busbar side) is set.
Main menu/Settings/General Settings/Analog modules/MergingUnit
Displays parameters for the merging units. For the MU channels, no primary or
secondary values need to be set, due to the fixed standardized scaling of 1 mA/10 mV
per LSB
Main menu/Settings/General Settings/Analog modules/3PhaseAnalogGroup/PR
Here, settings for the Fourier filters, the minimum system voltage required to measure
frequency, the item designation of CTs or VTs, and the system voltage are set. These
settings are required by the preprocessing blocks and are usually only adjusted during
the initial engineering phase.
Main menu/Setting/General Settings/Analog modules/
3phAnalogSummationGroup/SU
Here is where the settings for the summation block are done. The summation type,
Fourier filter reference frequency, minimum voltage for frequency measurement and
the system voltage are some of the parameters that can be set here.
Settings/General Settings/Analog modules/Reference channel service values
The phase angle reference is set here.
9.2.3.3
I/O modules
Main menu/Settings/General Settings/I/O Modules
Settings for binary inputs and outputs (BIM, BOM, IOM), and under each binary
module there are one or more adjustable parameters. In the I/O modules folder there is
also a “reconfigure” setting that starts a dialog box prompting the user to confirm or
cancel the command. Since only I/O modules installed in the IED are shown, the
parameters available for setting depend on the physical configuration of the IED. All I/
O modules include the operation parameter which enables the operator to switch the
module on or off.
The milliampere modules (MIMs) are also found in the I/O Modules folder. Parameters
possible to set here are dead band settings and various current threshold values.
Section 9
1MRK506276-UUS B
Read and change settings
46
Operator's manual
