Research Concepts RC2000A - Manual (Page 43)

RC2000A Dual Axis Antenna Controller Chapter 4 Modes 43
POL DISPLAY 0 DEG CNT: 500 CONFIG
1-1023 ENT,BKSP,SCRLL ^v
POL DISPLAY 90 DEG CNT: 750 CONFIG
1-1023 ENT,BKSP,SCRLL ^v
The Pol Motor Jog Duration CONFIG mode item controls the length of time (in milliseconds) that the
polarization motor drive signals are applied when a polarization jog command is received via the serial
communications port. The setting of this parameter determines the accuracy with which the polarization
can be adjusted via remote control.
POL MOTOR JOG DURATION:1000 CONFIG
175-3000 MSEC ENT,BKSP,SCRLL ^v
4.10.8 Azimuth and Elevation Drive Options
The CONFIG mode items described in this section set the movement parameters for the azimuth and
elevation axis. The default values of these parameters (as initialized upon system reset) are adequate
for use with 36 volt linear actuators. For systems employing linear actuators, it is recommended that
these values not be changed from the default values. The provision to modify these parameters is
included for those customers who use the azimuth and elevation drive outputs from the RC2000A to
drive a pair of 36 volt relays (equipped with steering diodes) which in turn activate AC motors. More
information about using the RC2000A in this fashion may be found in the appendix entitled "Controlling
Antennas Powered by AC or Large DC Motors with the RC1000 or RC2000 Antenna Controllers".
Access to the CONFIG mode items described in this chapter is permitted only when the Expert Access
Flag is set.
The Az/El Drive Options Enable CONFIG mode item is the controlling item for the other CONFIG mode
items described in this chapter. When this item is disabled the user does not have access (via CONFIG
mode) to the other items described in this section. Note that when this item is disabled, the current
values of the other items described in this section are used to control azimuth and elevation movement.
In other words, disabling this item does not reset the other items described in this section to their default
values.
AZ/EL DRIVE OPTIONS ENABLE:0 CONFIG
0-DISABLE, 1-ENABLE ENT,BKSP,SCRLL ^v
During an automatic move in AUTO mode, the 'Fast Slow Threshold CONFIG mode items are used to
set the number of counts before a target position is reached that the controller switches the speed of the
drive from fast to slow. There is a separate value for each axis.
AZIM FAST SLOW THRESHOLD: 80 CONFIG
0-400 COUNTS ENT,BKSP,SCRLL ^v
ELEV FAST SLOW THRESHOLD: 80 CONFIG
0-400 COUNTS ENT,BKSP,SCRLL ^v
During an automatic move in AUTO mode, the 'Coast Threshold CONFIG mode items set the number of
counts before the target position is reached where the drive will be deactivated. The idea is to
deactivate the drive and let the antenna coast into position. If prior to the initiation of the move
operation, the total number of counts that the actuator has to move to reach the target position is less
than the 'Coast Threshold, the drive will be deactivated when its position is within 'Max Position Error
counts of the target position.
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