AL-4589-1 (Shown with optional wedge & base riser)
➊ APPLICATIONS
• General Purpose Positioning
Subsystems
• Far-Field & Near-Field Antenna
Measurements
• Aircraft Measurements
• Indoor & Outdoor Use
➋ PRODUCT HIGHTLIGHTS
• Vertical Loads Ranging from 18,000
to 40,000 lbs (8,165 to 18,140 kg)
• Turntable Diameters Ranging from
30.0 to 48.0 in (762 to 1,219 mm)
• Optimum Performance Relative to Size
• Excellent Angular Position Accuracy
• Low Backlash Design
• Precision Bearings
• Closed Loop Servo Control
• Industry-Standard Wiring
• Tachometers for Optimum Speed
Regulation & Control
• Wide Operating Temperature Range:
- 4° F to 140° F (- 20° C to 60° C)
• Fully Enclosed Design of Drive Gear
Train & Data Take-Off
• Wide Variety of Available Options
96
Our Performance Series AZ/EL/AZ positioners represent the latest generation of multi-axis
rotary positioning subsystems.
They offer enhanced capabilities and improved performance relative to size and incorporate
new engineering advances.
This series provides accurate rotation, velocity, and direction for customers involved in antenna design
and development. Their rugged yet simple construction ensures maximum reliability and trouble-free
operation, yielding the best size and weight versus performance ratio.
Typically, the primary components include the body, precise slew bearings, DC motors, gear reducers,
synchro assemblies, and limit switch assemblies. The turntable surface is designed with a threaded
mounting hole pattern for customer use. A Safe/Operate switch is included to ensure the safety
of working personnel.
Page 2
supplied accessories
>
CD-ROM Documentation Set:
User Manual (Installation, Setup, Operation & Maintenance)
technical notes
1All accuracy data is based on no-load conditions.
Contact ORBIT/FR for accuracy under load conditions.
2All models are equipped with adjustable limit switches
capable of approx 20° to 900° total travel. When rotary
joint and slip ring options are specifi ed, limit switches
remain but are electrically disabled.
Multi-axis positioners are factory-set at:
• Upper Azimuth Axis: 400° (± 200°)
• Elevation Axis: 184° (± 92°)
• Lower Azimuth Axis: 400° (± 200°)
3Slip Ring & Rotary Joint Option Notes:
• Certain slip ring options may require an extension
cap that protrudes above the turntable surface.
Positioner height may increase. Consult ORBIT/FR.
• Slip ring contacts for customer use are provided
with dedicated connectors.
• When rotary joint and/or slip ring options are
specifi ed, no central thru-hole is available to
the user. Option TH002-HD and TH003-HD
are available in lieu of rotary joint and/or slip ring
options.
4AL-4588-1 and AL-4589-1 were previously listed as
AL-4578-1 and AL-4579-1, respectively. There is no
change in the specifi cations.
AL-4586-1 (Shown with optional counterweights & base riser)
> Rotary Positioners
ORDERING INFORMATION
• Refer to Performance Series AZ/EL/AZ Positioners –
Heavy Duty Series Specifi cation Table
AL-4588-1 (Shown with optional counterweights & base riser)
97
Page 3
Specifi cations - Performance Series AZ/EL/AZ Positioners Heavy Duty