- 1 Disclaimer
- 2 Precautions
- 3 Conventions used throughout this document
- 4 Device Overview
- 5 Installation
- 6 Warranty and Repair
- 7 Email Updates
- 8 Contact Information
- 9 Appendix A: Default Settings
Zaber’s products 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.
Zaber's autodetect peripheral axes are designed to be used effortlessly with Zaber's line of autodetect controllers. The LHM includes onboard memory that allows Zaber's controllers to autodetect the model and set reasonable parameters. See the Protocol Manual for more information on how to modify the settings. 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.
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 type indicates communication to and from a device. The ↵ symbol indicates a carriage return, which can be achieved by pressing enter when using a terminal program.
- An ASCII command followed by (T:xx) indicates a legacy T-Series Binary Protocol command that achieves the same result. For example,
- move abs 10000 (T:20:10000) shows that a move abs ASCII command can also be achieved with Binary command number 20.
- Not all ASCII commands have an equivalent Binary counterpart.
Your LHM peripheral is equipped with AutoDetect, a feature that allows a Zaber controller to automatically configure its settings for the peripheral when it is connected.
To connect the peripheral to a controller:
- Power off the controller.
- Connect the LHM peripheral.
- Power on the controller.
- The controller will activate the peripheral shortly after it is powered on.
Recommended controller(s) for your LHM 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.
For reference, the pinout for the peripheral cable connectors is shown below:
Pinout for D-sub 15 Connectors (peripherals)
|T3A Peripheral (male)|
|T4A Peripheral (male)|
|1||+5V for Limits & Encoder|
Not all pins are used for all models
The LHM can be controlled by any 2-phase stepper motor controller with limit sensor input. We do not recommend using your own controller unless you are familiar with how to control a stepper motor with hall sensor limit switches. Damage to the stage due to incorrect wiring is not covered by warranty.
For motor information see the LHM product page
Hall effect sensors are used in the LHM as home sensors. The Hall sensors used are part number A1120LLHLT-T made by Allegro. Click here for data sheet. Your controller should be configured so the stage stops immediately (quick deceleration) when the sensors are triggered.
- PCB wire colour code:
- 5 Vdc input - red
- Home signal - yellow
- Away signal - white
- Ground - black
The Hall sensor has an open-collector output. The default output is high impedance when the Hall sensor is not active. 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. The typical value for the pull-up resistor (RLOAD) is 10 kΩ and for the bypass capacitor is 0.1 uF to 1 uF. The larger the capacitance, the better the noise filtering but the slower the response time.
There are several options available for mounting Zaber stages. Use the mounting holes in the bottom to mount to a surface or to another stage. You might have to move the carriage to access the bottom mounting holes. Some stages have mounting holes in the end plates for mounting vertically. Mounting screws are included with most stages.
Caution: Some stages have threaded through-holes in the top mounting plate of the carriage. Be sure not to install mounting screws too deep, causing them to interfere with inside parts of the stage.
LHM series stages can be mounted to a standard metric or imperial breadboard with our AP101 adaptor plates.
To prevent damage to the device due to static buildup, the device should be properly grounded.
Failure to ground the unit may result in the unit shutting down unexpectedly or ceasing to communicate with the computer. This problem can be minimized by not touching the unit during operation. If the unit fails due to static discharge, unplugging it and plugging it back in or sending a Restore Settings command will usually fix the problem.
Most Zaber devices are grounded via the shield wire of the data cables. This should normally provide a path to ground via the computer. For units which are being used without a computer, a ground lead should be connected to the shield of one of the data cables.
Warranty and Repair
For Zaber's policies on warranty and repair, please refer to the Ordering Policies.
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. If you are not satisfied with your purchase, we will refund your payment minus any shipping charges. Goods must be in brand new saleable condition with no marks. Zaber products are guaranteed for one year. During this period Zaber will repair any products with faults due to manufacturing defects, free of charge.
Custom products are any part numbers containing the suffix ENG followed by a 4 digit number. Each of these products has been designed for a custom application for a particular customer. Custom products are guaranteed for one year, unless explicitly stated otherwise. During this period Zaber will repair any products with faults due to manufacturing defects, free of charge.
How to return products
Customers with devices in need of return or repair should contact Zaber to obtain an RMA form which must be filled out and sent back to us to receive an RMA number. The RMA form contains instructions for packing and returning the device. The specified RMA number must be included on the shipment to ensure timely processing.
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 Zaber Technologies Inc by any of the following methods:
1-888-276-8033 (toll free in North America)
|#2 - 605 West Kent Ave. N., Vancouver, British Columbia, Canada, V6P 6T7|
|Please visit our website for up to date email contact information.|
The original instructions for this product are available at https://www.zaber.com/manuals/LHM.
Appendix A: Default Settings
Please see the Zaber Support Page for default settings for this device.