Track Mode Errors; Operational Troubleshooting Tips - RESEARCH CONCEPTS RC2000C Manual

66 RC2000C Polar Tracking Antenna Controller
7.2

TRACK MODE ERRORS

Should one of the following errors occur during TRACK operation, the controller will display an error
message mid-position of the second row on the display. Also, all tracking operations will halt until the
error is corrected.
JAMMED
If the controller does not sense feedback/position pulses from the reed or hall-effect sensor while it
asserts the drive lines, it will halt the drive signals and display the JAMMED message. Check to make
sure the drive circuit breaker has not tripped, or mode to RESET and reset the axis that was shut down.
Section 5.7
LIMIT
The controller encountered an azimuth or elevation limit during a track movement operation. This
represents a serious error because it means the limits have to be changed to allow tracking of this
satellite, and all position values will become invalid when the limits are moved. Be sure to set the limits
wide enough to allow ample tracking over the entire range.
DRIVE
This error indicates a runaway or unexpected count input on the sensor lines. The controller will shut
down the drive experiencing this error, and will have to be reset in RESET mode. Section 5.7
PEAK LIMIT
This error indicates that the antenna moved too far in either azimuth or elevation while attempting to peak
the antenna. This error is described in section 4.4.5 - Tracking Problems.
SCALE FACTOR
This error indicates that the controller was unable to calculate the antenna azimuth scale factor. This
error will only occur when the user has specified that the antenna azimuth scale factors are to be
calculated by the controller (by setting the Azim Constant CONFIG mode item to zero). To calculate the
azimuth scale factor, the controller requires that 2 geostationary satellites with sufficient spacing be
programmed into memory. If this error occurs, the user either needs to program additional geostationary
satellites into the controller's non-volatile memory via SETUP mode, or initialize the Azim Constant
CONFIG mode item. See sections 4.3.2, 4.4.2, and 5.10.10.
SYSTEM
System errors were summarized in section 7.1.
CHECKSUM
This error indicates the memory in the satellite's track table or header has been corrupted. The only way
to correct this error is to re-initialize the satellite by re-storing it in SETUP mode. Section 5.6
GEO
This error indicates that the user attempted to initiate a track on an inclined orbit satellite when the value
for the Geo Elevation Position CONFIG mode item was zero. Please refer to sections 3.6, 4.3.6, or
5.10.5.
7.3

OPERATIONAL TROUBLESHOOTING TIPS

THE CONTROLLER DOES NOT RETURN TO THE PROPER SATELLITE LOCATION (AND IS NOT
EVEN CLOSE)
Research Concepts, Inc. • 5420 Martindale Road • Shawnee, Kansas 66218-9680 • USA www.researchconcepts.com
Chapter 7 Troubleshooting/Alarm Codes