COBHAM SEA TEL 9711IMA-70, Руководство по установке

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9711IMA-70 Maintenance
15-21
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This chart displays the Torque Command errors for each axis via three traces, CL (Cross Level),
LV (Elevation), and AZ (Azimuth), at a fixed 0.195 amps/vertical division.
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In all axes, tracing centered on the reference line means that that axis is neutral. Tracing above
the reference line means that that axis is driving CCW. Tracing below the reference line means
that that axis is driving CW.
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A normal trace display will be ± 1 divisions from the red reference line while under calm sea
conditions and with DishScan® Drive turned off. See example below
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The Cross Level displayed above the reference line indicates that CL is driving CCW (Left).
Example: The antenna pictured in the screen capture below is imbalanced so that it is “Right
Heavy”. The CL trace is plotting above the red reference line (indicating that drive CCW is
required to keep the Cross-Level beam level (to the horizon).
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The Level display will plot below the reference line when the antenna requires CW drive (Up in
elevation).
Example: The antenna pictured in the screen capture below is imbalanced so that it is “Front, or
Bottom, Heavy”. The LV trace is plotting above the red line, indicating that CW drive is required
to maintain the current elevation position.
EAR Controlled - ECCN EAR99