Installation Troubleshooting
9711-92 Ku-Band TXRX
17-8
17.3.6.
Open Loop Rate Sensor Monitoring
The DacRemP
DISPW
graph chart provides a means for monitoring the output of the 3 solid state rate
sensors (located inside the PCU for diagnostic purposes. The rate sensors are the primary inputs to the PCU
for stabilization.
•
To monitor the rate sensors, select the
graph chart
•
This chart displays sensed output from the 3 rate sensors via three traces, CL (Cross Level), LV
(Elevation), and AZ (Azimuth), at a fixed 1
º
/Second/vertical division.
•
A normal trace display will be
±
1 divisions from the red reference line. The example shown
below shows an antenna that is NOT currently sensing motion in any axis.
•
The Cross Level display should decrease (plots below red line) as the antenna is tilted to the left
and increase (plots above red line) as the antenna tilted to the right.
•
The Level display should decrease (plots below red line) as the antenna is tilted forward and
increase (plots above red line) as the antenna is tilted back.
•
The Azimuth display should decrease (plots below red line) as the antenna is rotated CCW and
increase (plots above red line) as the antenna is rotated CW. In the example below, the output
of the Azimuth rate sensor is plotted above the reference line, indicating that the antenna was
driven CW in Azimuth. Due to the in-practicality of driving an axis at a consistent rate,
verification of rate sensor output is, for the most part restricted to a positive or negative
response of the Level Cage movement (plotting above or below the red reference line of each
axis).
Summary of Contents for 9711-92
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Page 10: ...Table of Contents x 22 2 9711 GENERAL DRAWINGS 22 1 This Page Intentionally Left Blank ...
Page 22: ...Site Survey 9711 92 Ku Band TXRX 2 8 This Page Intentionally Left Blank ...
Page 62: ...Basic Setup of the ACU 9711 92 Ku Band TXRX 4 4 This Page Intentionally Left Blank ...
Page 64: ...Setup Ships Gyro Compass 9711 92 Ku Band TXRX 5 2 This Page Intentionally Left Blank ...
Page 66: ...Setup Band Select 9711 92 Ku Band TXRX 6 2 This Page Intentionally Left Blank ...
Page 72: ...Setup Home Flag Offset 9711 92 Ku Band TXRX 8 4 This Page Intentionally Left Blank ...
Page 80: ...Setup Searching 9711 92 Ku Band TXRX 10 6 This Page Intentionally Left Blank ...
Page 100: ...Antenna Specific Operation 9711 92 Ku Band TXRX 15 4 This Page Intentionally Left Blank ...
Page 104: ...Functional Testing 9711 92 Ku Band TXRX 16 4 This Page Intentionally Left Blank ...
Page 120: ...Installation Troubleshooting 9711 92 Ku Band TXRX 17 16 This Page Intentionally Left Blank ...
Page 142: ...Maintenance 9711 92 Ku Band TXRX 18 22 This Page Intentionally Left Blank ...
Page 160: ...Drawings 9711 92 Ku Band TXRX 22 2 This Page Intentionally Left Blank ...
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