Zaber LRT-EC Series User Manual

High-load motorized linear stages with built-in motor encoders, dust covers

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LRT-EC Series User's Manual
High-load motorized linear stages with built-in motor encoders, dust covers
Disclaimer
Zaber's devices are not intended for use in any critical medical, aviation, or military applications or situations
where a product's use or failure could cause personal injury, death, or damage to property. Zaber disclaims any
and all liability for injury or other damages resulting from the use of our products.
Precautions
Zaber's autodetect peripheral axes are designed to be used effortlessly with Zaber's line of autodetect controllers.
The LRT-EC includes onboard memory that allows Zaber's controllers to autodetect the model and set
reasonable parameters. See the
the axis may result if the settings are not correct. To use your Zaber peripheral with a third-party controller, review
the motor, sensor, and encoder specifications and pin-outs carefully.
Zaber's motion control devices are precision instruments and must be handled with care. In particular, moving
parts must be treated with care. Avoid axial loads in excess of the rated thrust load, axial and radial impact, dust
and other contaminants and damage to the lead screw thread. These will reduce the performance of the device
below stated specifications.
Conventions used throughout this document
Fixed width
return, which can be achieved by pressing enter when using a terminal program.
An
ASCII command
achieves the same result. For example,
move abs 10000 (T:20:10000)
Binary command number 20.
Not all ASCII commands have an equivalent Binary counterpart.
Device Overview
AutoDetect
Your LRT-EC peripheral is equipped with AutoDetect, a feature that allows a Zaber controller to automatically
configure its settings for the peripheral when it is connected.
Protocol Manual
type indicates communication to and from a device. The
followed by (T:xx) indicates a legacy T-Series
shows that a move abs ASCII command can also be achieved with
for more information on how to modify the settings. Damage to
symbol indicates a carriage
Binary Protocol
command that

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Summary of Contents for Zaber LRT-EC Series

  • Page 1 Damage to the axis may result if the settings are not correct. To use your Zaber peripheral with a third-party controller, review the motor, sensor, and encoder specifications and pin-outs carefully.
  • Page 2 4. The controller will activate the peripheral shortly after it is powered on. Connectors Recommended controller(s) for your LRT-EC peripheral are provided in the product specifications. Zaber's controllers and peripherals are designed for ease of use when used together. Optimal settings for each peripheral are automatically detected by Zaber's controllers when the device is connected.
  • Page 3 When the sensor detects a magnet, the Hall sensor pulls the output low to ground. If you are not using a Zaber controller, ensure that your controller has a pull-up resistor on the output line of each Hall sensor as shown in the diagram. The bypass capacitor is optional, but may help to eliminate false triggering in noisy environments.
  • Page 4: Installation

    Installation Physical Installation Secure stages with M6 (or 1/4"-20) socket cap screws, 35 mm or longer. Two stages can be mounted directly in XY configuration. Tip: To obtain the best pitch, roll, yaw and runout accuracy, mount the stage to a known flat, stiff surface. Our tests were performed on a granite table, grade A flatness.
  • Page 5 Drive Screw Version Back-driving Force (N) Non-back-driving Maintenance We recommend greasing the linear bearings to prolong service life. Many factors affect the lifetime of the grease and bearings including temperature, contamination, and loading configurations but the following chart provides a guideline.
  • Page 6 Remove the carriage ramps by removing their screws. Slide out the carriage cover. Slide out the dust cover. CAUTION! DUST COVER EDGES ARE SHARP! Insert angled syringe tip into grease hole in bearing end cap. With the power on and using the manual control knob (if equipped), move the stage about 100 mm (4") while squeezing grease in from the syringe.
  • Page 7 Don't drive the carriage close to the ends of the stage where the risk is greater of squishing the syringe or your fingers. Repeat with the other three end caps. Reinstall dust cover Slide dust cover into carriage, above angled sliding pads but below thin channel near the top. Position the dust cover so it's about even at both ends Install one carriage end ramp and slide the top sheet in the thin channel near the top.
  • Page 8: Warranty And Repair

    Standard products are any part numbers that do not contain the suffix ENG followed by a 4 digit number. Most, but not all, standard products are listed for sale on our website. All standard Zaber products are backed by a one- month satisfaction guarantee.
  • Page 9: Contact Information

    If you would like to receive our periodic email newsletter including product updates and promotions, please sign up online at www.zaber.com (news section). Newsletters typically include a promotional offer worth at least $100. Contact Information Contact Zaber Technologies Inc by any of the following methods: Phone 1-604-569-3780 (direct) 1-888-276-8033 (toll free in North America) 1-604-648-8033 Mail #2 - 605 West Kent Ave.
  • Page 10: Specifications

    Specifications Specification Value Alternate Unit Built-in Controller Recommended Controller X-MCC (48 V) Recommended AutoDetect Encoder Resolution 400 CPR 1600 states/rev Encoder Type Rotary quadrature encoder Maximum Centered Load 5000 N 1121.3 lb Maximum Cantilever Load 120 N⋅m 88.6 ft⋅lb Guide Type Recirculating Ball Linear Guide Vertical Runout <...
  • Page 11 Microstep Size Accuracy Part Number (Default Resolution) Travel Range (unidirectional) Repeatability LRT0250DL-E08CT3A 1.984375 µm 250 mm (9.843") 63 µm (0.002480") < 8 µm (< 0.000315") LRT0250HL-E08CT3A 0.390625 µm 250 mm (9.843") 113 µm (0.004449") < 4 µm (< 0.000157") LRT0500AL-E08CT3A 0.124023438 µm 500 mm (19.685") 125 µm (0.004921") <...
  • Page 12 Part Number Backlash Maximum Speed Minimum Speed Speed Resolution LRT0250BL-E08CT3A < 45 µm 175 mm/s 0.000303 mm/s 0.000303 mm/s (< 0.001772") (6.890"/s) (0.000012"/s) (0.000012"/s) LRT0250DL-E08CT3A < 75 µm 700 mm/s 0.001212 mm/s 0.001212 mm/s (< 0.002953") (27.559"/s) (0.000048"/s) (0.000048"/s) LRT0250HL-E08CT3A < 25 µm 140 mm/s 0.000239 mm/s 0.000239 mm/s...
  • Page 13 Back-driving Maximum Linear Motion Per Part Number Peak Thrust Force Continuous Thrust Motor Rev LRT0250DL-E08CT3A 200 N (44.9 lb) 40 N (9.0 lb) 200 N (44.9 lb) 25.4 mm (1.000") (± 30%) LRT0250HL-E08CT3A 1200 N (269.1 lb) 157 N (35.2 lb) 1200 N (269.1 lb) 5 mm (0.197") (±...
  • Page 14 Part Number Mechanical Drive System Weight LRT1000DL-E08CT3A Precision lead screw 8.393 kg (18.503 lb) LRT1000HL-E08CT3A Precision ball screw 8.393 kg (18.503 lb) LRT1500AL-E08CT3A Precision lead screw 11.028 kg (24.313 lb) LRT1500BL-E08CT3A Precision lead screw 11.028 kg (24.313 lb) LRT1500DL-E08CT3A Precision lead screw 11.028 kg (24.313 lb) Charts and Notes...
  • Page 17 This product uses the FreeRTOS kernel. FreeRTOS is © 2021 Amazon.com, Inc. or its affiliates and is governed by the following license: All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:...
  • Page 18 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

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