ORBIT/FR Legacy Series azimuth positioners provide
accurate rotation, velocity, and direction for customers
involved in antenna design and development.
➊ APPLICATIONS
• General Purpose Positioning
Subsystems
• Far-Field & Near-Field Antenna
Measurements
• Indoor & Outdoor Use
(AL-260-1 & Smaller Indoor Only)
➋ PRODUCT HIGHTLIGHTS
• Broad Selection – 8 Models
• Vertical Loads Ranging from 10
to 2,000 lbs (4.5 to 910 kg)
• Turntable Diameters Ranging from
2.6 to 12.6 in (66 to 320 mm)
• Excellent Angular Position Accuracy
• Low Backlash Design
• Precision Bearings
• Closed Loop Servo Control
• Industry-Standard Wiring
• Tachometers for Optimum Speed
Regulation & Control
(Except AL-060-1 & AL-160-1)
• 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
> Rotary Positioners
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 bearing, DC motor, gear reducer,
synchro assembly, and limit switch assembly. 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.
*See Options Glossary on page 132 (-) N/A S Standard Opt Optional
> Rotary Positioners
35
Page 4
❚ AL-360-1
❚ AL-760-1
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.
2AL-260-1 and larger 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.
Single-axis positioners are factory-set at:
• 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 and TH003 are available in
lieu of rotary joint and/or slip ring options.
4AL-060-1 & AL-160-1 Models:
• Contain restricted limit travel settings of 330° (± 165°).
• Rated for indoor use only.
• Encoder accuracy is ± 0.03° in uni-directional
rotation and ± 0.1° in bi-directional rotation
(due to backlash).
• Interface readout - incremental encoder
(synchro not available), interfaces with AL-4160
series motion control systems only.
5AL-260-1 and larger models are delivered standard
with synchro.
6AL-260-1 is rated for indoor use only.
36
ORDERING INFORMATION
• Refer to Legacy Series Azimuth Positioners –
Light Duty Specifi cation Table
❚ AL-160-1
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