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LTA Series Precision Motorized Actuators

LTA Series Precision Motorized Actuators
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LTA Series Precision Motorized Actuators - 1

836 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 M o t o r i z e d P o s i t i o n i n g MOTORIZED ROTATION MOTORIZED LINEAR STAGES TECHNICAL REFERENCE STAGES SYSTEMS CONTROLLERS AND AMPLIFIERS MOTORIZED ACTUATORS MOTORIZED OPTICAL MOUNTS LTA Series Precision Motorized Actuators LTA actuators are designed to fit into existing manual stages and other opto-mechanical components as direct replacement for manual micrometers. The LTA series features a space-saving design with the motor and lead screw mounted side-by-side. This reduces the actuator length by 50% and minimizes the unwanted effects of long cantilever loads on micro-positioning equipment. The non-rotating tip prevents wear and avoids periodic motion variations which can be caused by variable contact between a rotating tip and its mating surface. Precision motion is accomplished through a miniature DC servo motor with optimized output torque. This allows for faster motion and high load capacity. The LTA-HL is recommended for heavy load applications. It features a robust, 8 mm diameter rod and a M12-0.5 mounting bezel that is compatible with the UMR8 and MVN80 linear stages (see page 877 and see • Up to 50 mm travel in a space saving design • Non-rotating tip improves motion smoothness and has no wear • Exceptional position sensitivity • Adjustable limit switch prevents damage from over-travel • Convenient manual positioning knob Design Details Base Material Stainless steel body Drive Mechanism Non-rotating lead screw Drive Screw Pitch (mm) 1.0 Reduction Gear LTA-HL, LTAPPV6: 1:66 LTA-HS: 1:14 Feedback LTA-HS, LTA-HL: Motor mounted rotary encoder, 2048 cts/rev. LTAPPV6: None Limit Switches Mechanical switches, both ends, max. travel limit is adjustable Origin Uses minimum travel limit for homing, typically <4 ìm repeatability Motor LTA-HS, LTA-HL: DC servo motor UE1724SR LTAPPV6: 2-phase stepper motor UE16PP, 1 full step = 0.631 ìm Cable Length LTA-HS, LTA-HL: 3 m LTAPPV6: 1.5 m white Teflon cable, standard connector MTBF 10 000 h at 25N load and with a 10% duty cycle Weight [lb (kg)] LTA-HS, LTA-HL: 1.1 (0.5) LTAPPV6: 0.77 (0.35) page 899). The LTA-HS is optimized for high-speed applications and provides a longer travel range. The mounting interface of the LTA-HS is compatible with a large number of Newport and other manufacturer's manual components. The LTAPPV6 has been designed specifically for vacuum applications up to 10-6hPa. It is comparable to the design of the LTA-HS, but features a miniature stepper motor instead of a DC servo motor and a gear reducer. Common to all models is a movable limit switch that prevents over-travel. The switch positions can be changed in minutes to adjust the maximum travel position. A manual adjustment knob permits quick positioning of the actuator when the motor is off. A scale indicates coarse actuator position in both millimeters and inches. Specifications LTA-HS LTA-HL LTAPPV6 Travel (mm) 50 25 50 Resolution (ìm) 0.035 0.0074 0.00631(1) Minimum Incremental Motion (ìm) 0.1 0.05 0.06 Uni-directional Repeatability (ìm) 0.15 typical, 0.5 guaranteed 0.15 typical, 0.5 guaranteed 0.5 guaranteed Bi-directional Repeatability (ìm)(2) 0.6 typical, 2 guaranteed 0.6 typical, 2 guaranteed 2 guaranteed On-Axis Accuracy (ìm) 5 typical, 15 guaranteed 2 typical, 8 guaranteed 15 guaranteed Maximum Speed (mm/s) 5 1 0.5(4) Axial Load Capacity (N) 50 120 40 Side Load Capacity(3) 5 N 20 N 5 N 1) Equals 1/100 of a full step 2) After backlash compensation 3) Avoid side loads during motion 4) 0.2 mm/s when used with SMC100PP See the Metrology Tutorial Section (see page 775) for more information on typical and guaranteed specifications Ordering Information Model Description LTA-HS Motorized actuator, high speed version, 50 mm travel LTA-HL Motorized actuator, high load version, 25 mm travel LTAPPV6 Motorized actuator, like LTA-HS, 0-50 mm travel, vacuum compatible to 10-6 hPa, incl. LTA-M12 adapter LTA-M12 M12-0.5 mounting adapter for LTA-HS to URM8, MVN80 and SL products Recommended Motion Controllers/Drivers: XPS (see page 844) ESP300 (see page 849) SMC100CC (see page 851) LTA-HS and LTA-HL only SMC100PP (see page 851) LTAPPV6 only

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LTA Series Precision Motorized Actuators - 2

837 Email: sales@newport.com • Web: newport.com M o t o r i z e d P o s i t i o n i n g TECHNICAL REFERENCE MOTORIZED LINEAR STAGES MOTORIZED ROTATION STAGES MOTORIZED OPTICAL MOUNTS MOTORIZED ACTUATORS CONTROLLERS AND AMPLIFIERS SYSTEMS The LTA Series actuator is compatible with most standard Newport manual stages and opto-mechanical components like the 426 Series translation stage. Dimensions Model LTA-HS .89 4.63 (117.5) (22.5) 1.77 (45) CABLE LENGTH 5.8 FT (3 M) AND 25-PIN SUB-D CONNECTOR .39 (10) Model LTA-M12 .55 (14) .47 (12) .88 (22.3) .18 (4.5) (M12 x 0.5 THD) ø .25 (Ø 6.4) NUT ø...

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