ALAR Series. Direct Drive, Large-Aperture, Rotary Stage. 5 different aperture sizes: 100 mm, 150 mm, 200 mm, 250 mm, 325 mm

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1 LR Series Rotary Stages LR Series Direct Drive, Large-perture, Rotary Stage 5 different aperture sizes: 100 mm, 150 mm, 200 mm, 250 mm, 325 mm Continuous or limited travel High axial load capacity of lb Large bearings provide high payload and moment load capacity Excellent accuracy and repeatability Low wobble and bearing run out Cog free motor provides smooth motion No gear backlash No accuracy changes over time from gear wear rpm continuous rotation speed Perfect for applications with payloads that must be at the center of rotation; great for Z roll gimbal applications Vac 10-6 torr compatible versions available erotech s LR series direct-drive rotary stages provide superior angular positioning and velocity control with exceptionally large apertures. With the combination of a large aperture and direct-drive motor, the LR series makes worm-drive large aperture stages a thing of the past. dvantage LR Now customers can get large aperture rotary stages with zero backlash, and no gear wear or gear vibration as is commonly seen in worm-drive stages. The other added benefit is that direct drive is significantly faster than worm drive, so testing can be completed in less time. In production settings, this equates to faster testing, lower cost manufacturing, and higher profits. From the standpoint of system accuracy and repeatability, the stage will maintain its performance over time with no need for maintenance because there are no gears to wear out. With higher accuracy and no backlash, customers can produce more accurate products because their test system is now more accurate. pplications pplications for the LR include single and multiaxis electro-optic sensor testing, missile seeker testing, antenna testing, inertial navigation device testing, photonic component alignment, high-accuracy laser machining, and precision wafer inspection. These include testing in vacuum to 10-6 torr. These rotary stages can also be configured as multiaxis gimbals. High Speed Conventional worm-drive rotaries with similar apertures and payload capacity only operate to 15 rpm or less. These direct-drive stages have been tested to 85 rpm continuous rotation over 5 times faster than worm drives. Superior Mechanical Design ngular contact bearings are used to maximize performance with respect to wobble, moment stiffness, and rotating friction. precision-machined shaft further minimizes wobble. The design incorporates integral connections that minimize cable issues. The LR works especially well in applications that require 360 continuous motion, but have limited space. The stage is mm tall and provides smooth motion without travel restrictions. Brushless Direct-Drive To maximize positioning performance, the LR series utilizes erotech s brushless, slotless motors. This motor

2 LR Series SPECIFICTIONS has all of the advantages of a brushless direct-drive motor no brushes to wear, no gear trains to maintain, and high acceleration and high speeds. Since it is a slotless, ironless design, there is zero cogging, meaning there is absolutely no torque ripple. This makes the LR ideal for applications requiring outstanding contoured motion, smooth scan velocity, or precise incremental steps. High Payload Capacity and Large Moment Load Stiffness The LR comes in two different configurations. The standard profile (SP) unit has high payload capacity and high moment load stiffness so it can handle applications where its rotation axis is parallel or perpendicular to gravity and the payload center of gravity is cantilevered away from the stage. The low profile (LP) unit has high payload capacity and is good for applications where the axis of rotation is parallel to gravity. Both the SP and LP units have the same aperture options and motor options. Either SP or LP stages can handle between lb of axial load. ccurate Positioning Performance is assured with encoder line counts from to per rev, resulting in resolutions from 0.02 arc-sec/count to arc-sec/count. The motor and highperformance rotary encoder are directly coupled to a common shaft. The absence of gear trains and mechanical couplings means no position errors caused by hysteresis, windup, or backlash. s a result, accuracy of ±3.9 arc-sec and bi-directional repeatability of ±0.5 arc-sec is attainable. Flexible Configurations erotech manufactures a wide range of servo amplifiers and advanced controllers to provide a complete, integrated package. Rotary Stages LR Series LR Series LR-100-SP LR-100-LP LR-150-SP LR-150-LP perture 100 mm (3.94 in) 100 mm (3.94 in) 150 mm (5.91 in) 150 mm (5.91 in) Motor Continuous Current Bus Voltage pk rms S Brushless Slotless S Brushless Slotless Up to 320 VDC L ength 250 mm (9.84 in) 250 mm (9.84 in) 300 mm (11.81 in) 300 mm (11.81 in) W idth 250 mm (9.84 in) 250 mm (9.84 in) 300 mm (11.81 in) 300 mm (11.81 in) H eight 100 mm (3.94 in) 65 mm (2.56 in) 100 mm (3.94 in) 65 mm (2.56 in) Unlimited Travel M aximum Limited Travel ± 170 ± 170 ± 170 ±170 Maximum 160 V Bus Maximum cceleration 1) R esolution ( 9.9 µrad (10.3 arc sec ) Yes 300 rpm 50 rpm 250 rpm 45 rpm rad/ s 1009 rad/ s 1330 rad/ s 29 rad/ s µrad (10.3 arc sec) 39.3 µrad (8.1 arc sec) 43.6 µrad (9.0 arc sec) M aximum Torque 23.9 N-m (211.5 lb-in) 11.9 N-m (105.3 lb-in) 42.9 N-m (379.7 lb-in) 14.5 N-m (128.3 lb-in) C ontinuous Torque 6.0 N-m (53.1 lb-in) 2.0 N-m (17.7 lb-in) 10.7 N-m (94.7 lb-in) 2.5 N-m (22.1 lb-in) W eight 160 N (36 lb) 81 N (18.1 lb) 182 N (41 lb) 96 N (21.6 lb) W eight with Limits 167 N (37.5 lb) 87 N (19.6 lb) 192 N (43.2 lb) 106 N (23.8 lb) xial Load 1554 N (349 lb) 1856 N (417 lb) 1969 N (443 lb) 2096 N (471 lb) R adial Load 1360 N (306 lb) 1524 N (343 lb) 1947 N (438 lb) 2014 N (453 lb) Moment Load Repeatability 3) ccuracy Wobble 267 N-m 75 2) 2 ( N- m ±2.4 µrad (0.5 arc sec) ( ±18.9 µrad (3.9 arc sec ) 9.7 µrad (2.0 arc sec) 451 N-m 90 ( 2) 3 N-m Note: 1. This is the fundamental encoder resolution before multiplication or quadrature. With erotech controls, divide the resolution by 1000X to 8000X to get actual available resolution i.e., 10 arc-sec fundamental = 10/8000 = arc-sec actual usable resolution. 2. The LR-LP base must be fully supported by a rigid mounting plate to achieve this moment load. 3. ccuracy assumes calibration.

3 LR Series SPECIFICTIONS LR Series Rotary Stages LR Series LR-200-SP LR-200-LP LR-250-SP LR-250-LP perture 200 mm (7.87 in) 200 mm (7.87 in) 250 mm (9.84 in) 250 mm (9.84 in) Motor Continuous Current Bus Voltage pk. 3 rms.76 Brushless Slotless Up to 320 VDC L ength 400 mm (15.75 in) 400 mm (15.75 in) 450 mm (17.72 in) 450 mm (16.73 in) W idth 400 mm (15.75 in) 400 mm (15.75 in) 450 mm (17.72 in) 450 mm (17.72 in) H eight 150 mm (5.91 in) 100 mm (3.94 in) 150 mm (5.91 in) 100 mm (3.94 in) Unlimited Travel M aximum Limited Travel ± 170 ± 170 ± 170 ±170 Maximum Velocity Maximum cceleration 1) R esolution ( 8.6 µrad (5.9 arc sec ) Yes 90 rpm 90 rpm 140 rpm 90 rpm rad/ s 570 rad/ s 287 rad/ s 07 rad/ s µrad (6.9 arc sec) 24.2 µrad (5.0 arc sec) 28.6 µrad (5.9 arc sec) M aximum Torque 86 N-m (761.2 lb-in) 86 N-m (761.2 lb-in) 140 N-m ( lb-in) 100 N-m (885.1 lb-in) C ontinuous Torque 13.1 N-m (115.9 lb-in) 13.1 N-m (115.9 lb-in) 21.4 N-m (189.4 lb-in) 15.3 N-m (135.4 lb-in) W eight N (89 lb) 277 N (62.3 lb) N (113 lb) 343 N (77.1 lb) W eight with Limits N (95 lb) 295 N (66.4 lb) N (120 lb) 367 N (82.6 lb) xial Load 4676 N (1051 lb) 4364 N (981 lb) 4965 N (1116 lb) 4965 N (1116 lb) R adial Load 4798 N (1079 lb) 4128 N (928 lb) 5215 N (1172 lb) 5059 N (1137 lb) Moment Load Repeatability 3) ccuracy Wobble 1604 N-m 090 2) 1 ( N- m ±2.4 µrad (0.5 arc sec) ( ±18.9 µrad (3.9 arc sec ) 9.7 µrad (2.0 arc sec) 1829 N-m 492 ( 2) 1 N-m Note: 1. This is the fundamental encoder resolution before multiplication or quadrature. With erotech controls, divide the resolution by 1000X to 8000X to get actual available resolution i.e., 10 arc-sec fundamental = 10/8000 = arc-sec actual usable resolution. 2. The LR-LP base must be fully supported by a rigid mounting plate to achieve this moment load. 3. ccuracy assumes calibration. LR Series LR-325-SP LR-325-LP perture 325 mm (12.80 in) 325 mm (12.80 in) Motor Continuous Current Bus Voltage pk rms Brushless Slotless Up to 320 VDC L ength 525 mm (20.67 in) 525 mm (20.67 in) W idth 525 mm (20.67 in) 525 mm (20.67 in) H eight 150 mm (5.91 in) 100 mm (3.94 in) Unlimited Travel M aximum Limited Travel ± 170 ±170 Maximum Velocity Maximum cceleration 1) R esolution ( 0.8 µrad (4.3 arc sec ) No Yes 150 rpm 120 rpm rad/ s 39 rad/ s µrad (5.0 arc sec) M aximum Torque 217 N-m ( lb-in) N-m ( lb-in) C ontinuous Torque 35.6 N-m (315.1 lb-in) 23.7 N-m (209.8 lb-in) Weight N / N (98 lb) W eight with Limits N (143 lb) N (110 lb) xial Load 5842 N (1313 lb) 5842 N (1313 lb) R adial Load 6670 N (1499 lb) 6463 N (1453 lb) Moment Load Repeatability (3) ccuracy Wobble 2672 N-m 201 ±2.4 µrad (0.5 arc sec) ±18.9 µrad (3.9 arc sec) 9.7 µrad (2.0 arc sec) ( 2) 2 N-m Note: 1. This is the fundamental encoder resolution before multiplication or quadrature. With erotech controls, divide the resolution by 1000X to 8000X to get actual available resolution i.e., 10 arc-sec fundamental = 10/8000 = arc-sec actual usable resolution. 2. The LR-LP base must be fully supported by a rigid mounting plate to achieve this moment load. 3. ccuracy assumes calibration.

4 LR-100-SP Rotary Stages LR Series

5 LR Series Rotary Stages LR-100-LP

6 LR-150-SP Rotary Stages LR Series

7 LR Series Rotary Stages LR-150-LP

8 LR-200-SP Rotary Stages LR Series

9 LR Series Rotary Stages LR-200-LP

10 LR-250-SP Rotary Stages LR Series

11 LR Series Rotary Stages LR-250-LP

12 LR-325-SP Rotary Stages LR Series

13 LR Series Rotary Stages LR-325-LP

14 LR Series ORDERING INFORMTION LR Series Direct-Drive, Large perture, Rotary Stages -100-LP 65 mm high direct-drive rotary stage with 100 mm clear aperture, dual precision bearings, 2.0 N-m continuous torque, and line amplified sine encoder -100-SP 100 mm high direct-drive rotary stage with 100 mm clear aperture, dual precision bearings, 5.9 N-m continuous torque, and line amplified sine encoder -150-LP 65 mm high direct-drive rotary stage with 150 mm clear aperture, dual precision bearings, 2.5 N-m continuous torque, and line amplified sine encoder -150-SP 100 mm high direct-drive rotary stage with 150 mm clear aperture, dual precision bearings, 10.7 N-m continuous torque, and line amplified sine encoder -200-LP 100 mm high direct-drive rotary stage with 200 mm clear aperture, dual precision bearings, 13.1 N-m continuous torque, and line amplified sine encoder -200-SP 150 mm high direct-drive rotary stage with 200 mm clear aperture, dual precision bearings, 13.1 N-m continuous torque, and line amplified sine encoder -250-LP 100 mm high direct-drive rotary stage with 250 mm clear aperture, dual precision bearings, 14.2 N-m continuous torque, and line amplified sine encoder -250-SP mm high direct-drive rotary stage with 250 mm clear aperture, dual precision bearings, 14.2 N-m continuous torque, and line amplified sine encoder -250-SP mm high direct-drive rotary stage with 250 mm clear aperture, dual precision bearings, 21.4 N-m continuous torque, and line amplified sine encoder -325-LP 100 mm high direct-drive rotary stage with 325 mm clear aperture, dual precision bearings, 23.7 N-m continuous torque, and line amplified sine encoder -325-SP mm high direct-drive rotary stage with 325 mm clear aperture, dual precision bearings, 23.7 N-m continuous torque, and line amplified sine encoder; NOTE: The 325-SP is limited travel only. It must include the -LT and - LI limit options below SP mm high direct-drive rotary stage with 325 mm clear aperture, dual precision bearings, 35.6 N-m continuous torque, and line amplified sine encoder; NOTE: The 325-SP is limited travel only. It must include the -LT and - LI limit options below. NOTE: -SP is for horizontal or vertical axis applications; -LP is for vertical axis applications. Rotary Stages LR Series Encoder Type -CT -LT Continuous Travel Internal Encoder Limited Travel Internal Encoder Encoder Output Options -S Standard feedback device; 1 Vpp sine wave output; multiply the selected stage resolution by the encoder multiplier to get final resolution of counts per rev -X5 Square-wave digital output which includes a 5-times multiplier; multiply the selected stage encoder lines by 5 to get the final resolution of counts per rev -X10 Square-wave digital output which includes a 10-times multiplier; multiply the selected stage encoder lines by 25 to get the final resolution of counts per rev -X25 Square-wave digital output which includes a 25-times multiplier; multiply the selected stage encoder lines by 25 to get the final resolution of counts per rev -X50 Square-wave digital output which includes a 50-times multiplier; multiply the selected stage encoder lines by 50 to get the final resolution of counts per rev Limit Options -UNLIMITED -LIx No travel limits or hardstops; valid only with -CT encoder type Normally-closed limits at x degrees total travel, where x = 10/20/30/60/90/120/180/240/300/340; integrated hardstops 5 degrees past LI limit switch angles; other travel angles available by special order; increases stage height by 10 mm; can be used with -CT or -LT encoder types; LR-250 and LR-325 hardstops are special order only; contact the factory for pricing Miscellaneous Options -BK Holding brake (custom engineering special order)