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User Manual
i Series / iX Series 259
9.8.2.8 704 Test Selection
The Test Selections tab in the 704 test window contains the following controls and displays.
Control / Display Description
Select Airframe. This drop down control allows the operator to select from one or more libraries of
test sequences grouped by airframe. This allows multiple sets of test sequences
to be organized by application. The GUI program is supplied with a generic
MS704_RevX set of test sequences, where „X‟ is the rev of the standard being
tested to, which conform to the MIL-STD-704 document.
Power Group Test
Table A library can contain up to seven power group test tables labeled SAC, TAC,
SVF, TVF, SXF, LDC, or HDC. These table names correspond to the Power
Groups identified in the MIL-STD-704 standard. Note that groups SAC, TAC,
SVF, TVF, and SXF are AC powered where as groups LDC and HDC are DC
powered. The operator cannot select a group that is not supported by the
present mode of operation of the power source. Thus, if the power source is in
AC mode, an error message will be display when trying to select group D or E.
Operating modes such as AC or DC must be changed from the main GUI screen.
The 704 screen can remain open while switching back to the main screen. Upon
return to the 704 screen, the relevant power groups can be selected.
Available power groups are:
Table SAC Single Phase 115V / 400 Hz (CF) AC Power tests.
Table TAC Three Phase 115V / 400 Hz (CF) AC Power tests.
Table SVF Single Phase 115V / 360 to 800 Hz (VF) AC Power tests.
Table TVF Three Phase 115V / 360 to 800 Hz (VF) AC Power tests.
Table SXF Single Phase 115V / 60 Hz (CF) AC Power tests.
Table LDC 28 VDC Power tests.
Table HDC 270 VDC Power tests.
The operator needs to determine what the relevant power group selection is for
the unit under test. (EUT). When switching power groups, the table data shown at
the bottom of this tab will be updated to reflect the new selection. The first test
section of the table will automatically be selected when switching power groups.
Present Power
Source Output
Settings This section displays the programmed steady state settings that are in effect.
This information is updated each time the 704 form regains focus. The mode of
operation (AC, DC or AC+DC) is displayed for reference but cannot be changed
from this screen. When in DC mode, the frequency setting will show “DC”.
Note that changes in steady state settings can only be made from the main GUI
screen. The operator can toggle between the main screen and the 704 screen for
this purpose as needed.
Table Header The table header is shown against a blue background and contains the table
reference designator and a description of the selected power group.
Test Table Display The data grid at the bottom of the tab displays the selected power group test
table. It is also used to select the specific test section and number to be
executed. Thus, every test starts by selecting the desired test step from this
table. Clicking on the desired ROW does this. The selected row will be
highlighted and the associated file shown in the File Ref. Field will be loaded in
the Test Control tab.
For better readability, the user can adjust the column widths by dragging the
dividers between columns. If the window is too small to display all rows and
columns, scroll bars will appear at the bottom and/or right of the data grid.
The following fields are displayed in the test data tables.
Test Number of the test from the MIL-STD-704 standard. For sub
sections of a test number, this field will be blank.
Section Test section. Some tests may only have one section in which case
this field is blank.
Subject Description of the type of test.
Test Limits A summary of the test limits that will be applied by this test.
Comment Comments concerning this test or its parameters.
File
Reference The test sequence file that is used to implement this test section
on the power source.
User Data The area at the bottom of this tab may be used to enter general information