User manual

COMM PORT
This alarm indicates that the checksums associated with the CONFIG mode
Remote Mode Enable, Comm Port Baud Rate, and Comm Port Address items
indicate that at least one of these items is invalid. See section 4.10.3.
AZ/EL ANGLE DISPLAY
This alarm indicates that the CONFIG mode items associated with the display of
azimuth and elevation position in an angle format have been corrupted. Please
see section 4.10.6.
POL OPTIONS
This error indicates that at least one of the CONFIG mode items associated with
the polarization control and display options is invalid. If the system uses a
polarotor, these items must still be initialized properly to avoid this error. Please
see section 4.10.7.
AZIM OPTIONS, ELEV OPTIONS
This error indicates that at least one of the CONFIG mode items associated with
the azimuth or elevation drive options are invalid. Note that all of the config
mode items associated with these options must be properly initialized even if the
Az/El Drive Options Enable CONFIG mode item is disabled. If this item is
disabled and these errors occur, the 'Options Enable item should be enabled to
gain access to the other CONFIG mode items associated with these options.
These other items can then be initialized to their default values. See section
4.10.10 for default values.
OPERATIONAL TROUBLESHOOTING TIPS
THE CONTROLLER DOES NOT RETURN TO THE PROPER
SATELLITE LOCATION (AND IS NOT EVEN CLOSE)
When this occurs the controller is generally losing or gaining position counts for a
given axis as the antenna moves about that axis. Please review the items
mentioned in Section 3.2 - Azimuth and Elevation Position Sense.
If the cause of the problem is not found and only one axis is affected, consider
replacing the position sense module and/or magnets in the actuator. If both axis
are affected the motor drive wires may have to be shielded. This is seldom
necessary, but if it is, follows the rules for connecting the shields as outlined in
Section 3.2.
THE CONTROLLER RETURNS TO APPROXIMATELY THE
CORRECT POSITION BUT MUST BE PEAKED MANUALLY TO
ACHIEVE A GOOD SIGNAL
This is generally an indication of mechanical hysteresis (slop) in either the
actuator or the mount. When this occurs the antenna will peak up at one position