Research Concepts RC2000A - Manual (Page 51)

RC2000A Dual Axis Antenna Controller Chapter 6 Troubleshooting 51
Chapter 6 TROUBLESHOOTING/ALARM CODES
The alarm system monitors important system parameters and flashes a message on the bottom line of
the LCD display if an error is found. The parameters monitored include the condition of the lithium
battery, status of the azimuth and elevation antenna drive systems, and the values of certain variables.
Some error codes have priority over others. Alarm conditions are sampled sequentially, with the
highest priority sampled first. As corrective action is taken for each error, the code is eliminated, and if
there is a lesser error, it will then appear.
6.1 SYSTEM ERROR CODES
LOW BATTERY
The RC2000A constantly monitors the level of the lithium battery. When the power level is low, this
error code will appear. Replace the battery with a Duracell DL2450. Make sure that the unit is
unplugged from the AC power before removing the cover to change the battery. Take care to hold the
battery tab away from the battery housing while replacing the battery, and it will not be necessary to
reprogram the memory. Since there is a chance that the non-volatile memory will be corrupted when
the battery is changed, please refer to the appendix entitled 'Restoring the Non-Volatile Memory' before
changing the battery.
AZIM LIMITS, ELEV LIMITS
One of the antenna software limits has been corrupted. Go into LIMITS mode and reset the software
limits. See Section 4.11
POL LIMITS
This error indicates that the polarization motor limits have been corrupted when either the RC2KPOL or
RC2KHPP option is installed (allowing the RC2000A to interface to a motorized feed with potentiometer
feedback). The limits for the polarization motor are set via POL LIMITS mode. See sections 3.3 and
4.10.12.
ANT AZIM, ANT ELEV, ANT POL
These alarm messages indicate that an error has been detected for the axis referenced in the alarm
message. When one of these alarms are detected, the axis is disabled. Go to RESET mode (section
4.5) to view the actual fault condition which was detected and to clear the fault.
A Reset mode JAMMED indication may mean that the drive breaker is open. This can occur if
simultaneous movement is enabled, and the total current draw from both motors exceeds 8 amps.
Reset the breaker by pressing it back into place, and disable Simultaneous AZ/EL movement via
CONFIG mode. See Section 4.10.2
NOTE: The following alarm conditions are cleared by going into CONFIG mode and re-
initializing the applicable CONFIG mode items. Access to certain items is controlled by other
CONFIG mode items - these controlling items can sometimes make it difficult to clear a CONFIG
mode data related alarm. Please review the explanation of the role of these controlling CONFIG
mode items in section 2.4.
AZIM COUNT, ELEV COUNT
The internal position count has been corrupted. Manually find a satellite and go into RE-SYNC mode to
update positions. See Section 4.7
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