ORBIT FR EL, AZ Positioners: Light Duty - Manual (Page 2)

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Specifi cations - Legacy Series EL/AZ Positioners Light Duty
Parameter Units
Positioner Model
AL-4267-1 AL- 4268-1 AL- 4269-1 AL- 4270-1
Outline Dimension Drawing Number 18-6698 10-1830 07-0478 15-0879
Technical Notes 1, 3, 5 1, 2, 3, 4, 6 1, 2, 3, 4 1, 2, 3, 4
Operational
Bending Moment
ft-lbs 100 60 120 210
kg-m 14 8.3 16 29
Vertical Load
lbs 44 50 100 200
kg 20 22.7 45 91
Delivered Torque
Azimuth
ft-lbs 50 40 90 150
kg-m 7 5.5 12.4 20.7
Elevation
ft-lbs 50 40 90 150
kg-m 7 5.5 12.4 20.7
Withstand Torque
Azimuth
ft-lbs 75 60 120 210
kg-m 10 8.3 16.6 29
Elevation
ft-lbs 75 60 120 210
kg-m 10 8.3 16.6 29
Drive Power
Azimuth hp 1/20 1/36 1/8 1/8
Elevation hp 1/20 1/36 1/8 1/8
Nominal Speed
Azimuth rpm 1.5 1.3 2.6 2
Elevation deg/min 9 470 1,080 720
Standard Angle
Transducer Format
Incremental Encoder Dual Speed Synchro Dual Speed Synchro Dual Speed Synchro
Standard
Accuracy Azimuth deg ± 0.05 ± 0.06 ± 0.04 ± 0.03
Elevation deg ± 0.05 ± 0.06 ± 0.04 ± 0.03
Maximum
Backlash
Azimuth deg 0.1 0.08 0.08 0.06
Elevation deg 0.1 0.08 0.08 0.06
Elevation Limit-to-Limit Travel deg ± 80 ± 95 ± 95 ± 95
Lower Azimuth Moment Bearing
Capacity (Static) ft-lbs 100 200 300 800
kg-m 14 28 41.5 111
Physical
Height at 0° Elevation
in 19.0 20.4 22.7 22.7
mm 482 517 577 577
Weight
lbs 55 53 115 115
kg 25 24 52 52
Platform Size
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
Environmental
Operating Temperature - 4° F to 140° F (- 20° C to 60° C)