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LIGHT DUTYLEGACY SERIES EL/AZ
>
EL/AZ Positioners – Light Duty
AL-4267-1 • AL- 4268-1 • AL- 4269-1 • AL- 4270-1
AL-4267-1
Our Legacy Series EL/AZ 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-4267 & AL-4268 Indoor Only)
➋ PRODUCT HIGHTLIGHTS
• Vertical Loads Ranging from
44 to 200 lbs (20 to 91 kg)
• Platform Sizes Ranging from
9.8 x 7.9 in to 12.6 x 12.6 in
(250 x 200 mm to 320 x 320 mm)
• 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
> 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 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.
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Specifi cations - Legacy Series EL/AZ Positioners Light Duty
Parameter Units
AL-4267-1 AL- 4268-1 AL- 4269-1 AL- 4270-1
Outline Dimension Drawing Number
Technical Notes
Operational
18-6698 10-1830 07-0478 15-0879
1, 3, 5 1, 2, 3, 4, 6 1, 2, 3, 4 1, 2, 3, 4
Positioner Model
Bending Moment
Vertical Load
Azimuth
Delivered Torque
Elevation
Azimuth
Withstand Torque
Elevation
Drive Power
Nominal Speed
Standard Angle
Transducer Format
Standard
Accuracy
Maximum
Backlash
Elevation Limit-to-Limit Travel
Lower Azimuth Moment Bearing
Capacity (Static)
Azimuth
Elevation
Azimuth
Elevation
Azimuth
Elevation
Azimuth
Elevation
ft-lbs 100 60 120 210
kg-m 14 8.3 16 29
lbs 44 50 100 200
kg 20 22.7 45 91
ft-lbs 50 40 90 150
kg-m 7 5.5 12.4 20.7
ft-lbs 50 40 90 150
kg-m 7 5.5 12.4 20.7
ft-lbs 75 60 120 210
kg-m 10 8.3 16.6 29
ft-lbs 75 60 120 210
kg-m 10 8.3 16.6 29
hp 1/20 1/36 1/8 1/8
hp 1/20 1/36 1/8 1/8
rpm 1.5 1.3 2.6 2
deg/min 9 470 1,080 720
Incremental Encoder Dual Speed Synchro Dual Speed Synchro Dual Speed Synchro
deg ± 0.05 ± 0.06 ± 0.04 ± 0.03
deg ± 0.05 ± 0.06 ± 0.04 ± 0.03
deg 0.1 0.08 0.08 0.06
deg 0.1 0.08 0.08 0.06
deg ± 80 ± 95 ± 95 ± 95
ft-lbs 100 200 300 800
kg-m 14 28 41.5 111
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Physical
Height at 0° Elevation
Weight
Platform Size
Environmental
Operating Temperature
in 19.0 20.4 22.7 22.7
mm 482 517 577 577
lbs 55 53 115 115
kg 25 24 52 52
in 9.8 x 7.9 9.5 x 7.9 10.3 x 10.3 12.6 x 12.6
mm 250 x 200 241 x 200 262 x 262 320 x 320
- 4° F to 140° F (- 20° C to 60° C)
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Options*
Positioner Model
Parameter Units
AL-4267-1 AL- 4268-1 AL- 4269-1 AL- 4270-1
Incremental Encoder
(Standard Accuracy)
EN001
EN002
EN003
EN004
SR Slip Ring
RJ Rotary Joint
TH
EX Internal Harnessing
CF Connector Format
LS Leveling Screw (set)
ST Stow Lock
MM Mounting Thread
IC Interlock Circuit
*See Options Glossary on page 132 (-) N/A S Standard Opt Optional
Accuracy – Azimuth
Accuracy – Elevation
Direct Incremental Encoder
(High Accuracy)
Accuracy – Azimuth
Accuracy – Elevation
Direct Absolute Encoder
(High Accuracy)
Accuracy – Azimuth
Accuracy – Elevation
Absolute Encoder
(Standard Accuracy)
Accuracy – Azimuth
Accuracy – Elevation
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Central Thru-Hole Inner
Diameter
deg
deg
deg - - ± 0.005 ± 0.005
deg - - ± 0.005 ± 0.005
deg - - ± 0.005 ± 0.005
deg - - ± 0.005 ± 0.005
deg - - ± 0.04 ± 0.03
deg - - ± 0.04 ± 0.03
-
in---mm----
S Opt Opt Opt
± 0.05 (Uni-D)
± 0.1 (Bi-D)
± 0.05 (Uni-D)
± 0.1 (Bi-D)
- - Opt Opt
- - Opt Opt
- - Opt Opt
RJ12U
RJ18U
RJ26U
RJ40U
RJ50U
----
- EX002 EX002 EX002
----
----
---MM002
MM003
----
± 0.06 ± 0.04 ± 0.03
± 0.06 ± 0.04 ± 0.03
SR051L
SR101L
SR201L
SR301L
RJ12U
RJ18U
RJ26U
RJ40U
RJ50U
MM002
MM003
SR051L
SR101L
SR201L
SR301L
RJ12U
RJ18U
RJ26U
RJ40U
RJ50U
MM002
MM003
SR051L
SR101L
SR201L
SR301L
RJ12U
RJ18U
RJ26U
RJ40U
RJ50U
MM002
MM003
> Rotary Positioners
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❚ AL-4270-1
supplied accessories
>
CD-ROM Documentation Set:
User Manual (Installation, Setup, Operation & Maintenance)
technical notes
1 All accuracy data is based on no-load conditions.
Contact ORBIT/FR for accuracy under load conditions.
2 AL-4268-1 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.
Multi-axis positioners are factory-set at:
• Azimuth Axis: 400° (± 200°)
3 Slip Ring 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.
4 AL-4268-1 and larger models are delivered standard
with synchro.
5 AL-4267-1 Model:
• Contains restricted limit travel settings.
Consult ORBIT/FR.
- Azimuth Axis: 300° (± 150°)
• Rated for indoor use only.
• Encoder accuracy is ± 0.05° in uni-directional
rotation and ± 0.1° in bi-directional rotation
(due to backlash).
• Interface readout - incremental encoder,
(synchro not available), interfaces with PC/DSP
motion control systems only.
6 AL-4268-1 is rated for indoor use only.
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ORDERING INFORMATION
• Refer to Legacy Series EL/AZ Positioners
– Light Duty Specifi cation Table
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