Manuals/NMS-E

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NMS-E Stepper Motors with Encoders User's Manual


File:NMS-E w400.jpg
NMS-E Stepper Motors with Encoders


Disclaimer

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.

Precautions

Zaber's autodetect peripheral axes are designed to be used effortlessly with Zaber's line of autodetect controllers. The NMS-E 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.

Hot surface warning 180px.png Caution: The motor in this device can exceed 60° C during normal operation and become hot enough to cause burns. Take precautions to prevent contact with the motor.

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.

Device Overview

AutoDetect

Your NMS-E peripheral is equipped with AutoDetect, a feature that allows a Zaber controller to automatically configure its settings for the peripheral when it is connected.

Tip lightbulb symbol.png Important: The controller should always be powered down before disconnecting or connecting your NMS-E peripheral.

To connect the peripheral to a controller:

  1. Power off the controller.
  2. Connect the NMS-E peripheral.
  3. Power on the controller.
  4. The controller will activate the peripheral shortly after it is powered on.

Connectors

Recommended controller(s) for your NMS-E 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) T3-DB15-male-connector-annotated-300.jpg
T4A Peripheral (male) T4-DB15-male-connector-annotated-300.jpg
Pin # Function
1 +5V for Limits & Encoder
2 AutoDetect Data
3 reserved
4 Away Sensor
5 Home Sensor
6 Ground
7 Motor B1
8 Motor A1
9 AutoDetect Clock
10 Encoder A
11 Encoder B
12 Encoder Index
13 Ground
14 Motor B2
15 Motor A2

Not all pins are used for all models

External Hall Sensor

Pin Description
1 Signal
2 +5V
3 Reserved
4 Ground

NOTE: The signal is pulled up to the internal supply rail and is designed to be pulled low by an open collector.

NOTE: Sensor inputs are non-isolated 5V TTL lines.


Alternate Controllers

The NMS-E can be controlled by any 2-phase stepper motor controller with limit sensor and appropriate encoder 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.

Motors & Encoders

For motor and encoder information see the NMS-E product page

Limit Sensors

Hall effect sensors are used in the NMS-E 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.

Hall sensor wiring diagram.png

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.

Installation

Physical Installation

The provided Hall Effect limit sensors are compatible with a T-slot (see dimensions below). To install a sensor, slide it down the T-slot from the slot's end to the desired position and tighten the M3 set screw until sensor is just secure. Over-tightening may cause threads to strip in the sensor. A small boss on the top side of the sensor indicates the approximate centre of the sensing area on the underside. If possible, nest the cable within the slot to avoid catching or pulling the cable.

4 mm T-slot dimensions Limit sensor sensing area position
T-slot dimensions (mm) M3 set screw position

To mount the provided magnet, use a strong adhesive to fix the magnet in a position that allows it to trigger the sensor (see below). Ensure the south pole (black side) of the magnet faces the sensor. The Hall Effect sensor only triggers on a south pole with a magnetic field intensity of approximately 35 G or more. Use a stronger magnet to trigger the sensor from a great distance. The triggering distance will vary depending upon the magnet's strength, the direction from which it approaches the sensor, its orientation relative to the sensor, and surrounding magnetic material. Standard mounting configurations and triggering distances are shown below.

Motion transverse to axis of magnet Motion along axis of magnet

Also see Home or Away Sensor Installation Sheet.


Warranty and Repair

For Zaber's policies on warranty and repair, please refer to the Ordering Policies.

Standard products

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

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.

Email Updates

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)
Fax 1-604-648-8033
Mail #2 - 605 West Kent Ave. N., Vancouver, British Columbia, Canada, V6P 6T7
Web www.zaber.com
Email 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/NMS-E.

Appendix A: Default Settings

Please see the Zaber Support Page for default settings for this device.