7200 TROUBLESHOOTING
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Soft Limit (Applies to: AZ, EL or POL)
Description: This fault occurs when the antenna has reached the operational
limit. Operational limits can be set [by the operator] in software
around the nominal AZ/EL/POL position of the target being tracked.
To Correct: If the operational limits are not set properly then adjust then as
required. Do not set then larger than the travel limits of the
antenna.
Summary Limit (Applies to: AZ, EL or POL)
Description: This fault occurs when the antenna has reached the full mechanical
travel limits of the antenna. These limits are set by VertexRSI field
personnel and should not be adjusted. Incorrect adjustment of
these limits could cause damage to the antenna structure.
To Correct: Drive antenna away from the limit. If the limit does not clear
inspect the limit switch to ensure proper operation. It should have
a contact closure in the normal operating position. If the limit
switch is operating properly then check the wiring between the
limit switch and the 7150 ADU.
Sun outage -- Steptrack inhibited (Applies to: All systems)
Description: This status occurs when the 7200 determines that the sun is
directly behind the target.
To Correct: This is only a temporary situation and this status will clear once
the sun is no longer directly behind the target.
SYSFAIL line - timeout (Applies to: All systems)
Description: This fault occurs when one of the 7200 VME cards declares a
failure.
To Correct: Determine which card in the VME bus is the cause of the failure;
Replace the card.
Task aborted (Applies to: All systems)
Description: This fault occurs when a routine in the software is halted due to a
problem in the code.
To Correct: Call VertexRSI Personnel.
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