MPS MA732 MagAlpha Angle Sensor Kit with Servo Motor - Industrial Sensing

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Summary

The TBMA732-Q-RD-00A is the round-version test board for the MagAlpha magnetic position angle sensor MA732. The MA732 sensor detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. It comes mounted on a fully integrated smart motor solution for servo motor applications (EVKT-MSM942038-24). The MA732 is used for general purpose angle measurement, or on devices such as Angle Encoders, Automotive Angle or Speed Sensors, and Robotics.

RoadTest Goal

We want the roadtester to evaluate the MA 732: a 14-Bit, Digital, Contactless Angle Sensor with ABZ Incremental & PWM Outputs. It is capable of fast data acquisition & processing to provide accurate angle measurements at speeds from 0 to 60,000 rpm. The sponsor has prepared a testing and setup procedure (see next section) for ease of use for a hobbyist.

Discussion

How Would You RoadTest the MagAlpha Angle Sensor Kit?

Test Procedure

This kit comes with a servo BLDC motor which can be driven in speed or position mode via RS485. Attached to the rotor is a diametrically magnetized magnet which rotates with the motor rotor. Above this magnet is an MA702 with a 1-2 mm airgap.

Download the following document prepared for this roadtest on how the MA702 angle sensor can be read / evaluated. Instructions for running the motor via an Arduino MEGA and RS485 driver are included.

(MA732 Roadtest Setup Guide and Getting Started)

(MSM zip folder)

Product Variants

MPS offers several product variants:

MA732 - This is the product variant used for this roadtest.

Kit Contents

• TBMA732-Q-RD-00A -- round-version test board for the MagAlpha magnetic position angle sensor MA732, which is mounted on the servo motor
• eMotion SystemTM Smart Motor Module--servo motor kit
• Communications kit (EVKT-MACOM)
• Anmbest RS485 Interface board
• Arduino Mega2560

Hardware Technical Description

The MPS MagAlpha family of magnetic angle position sensors offers a revolutionary way to measure angles. The MagAlpha range offers unique performance advantages compared to rival magnetic sensing technologies.

MagAlpha sensors use the patented SpinAxisTM Hall measurement technique that provides instantaneous angle position in a digital format. SpinAxisTM uses a phase detection approach that eliminates any need for analog to digital conversion or complex angle calculation used by more traditional technologies. Click here for more information.

MA732 Angular Position Sensor

The MA732 detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. Fast data acquisition and processing provide accurate angle measurements at speeds from 0 to 60,000 rpm. The digital filtering is adjustable to optimize control loop performance when used in servo applications.

The MA732 supports a wide range of magnetic field strengths and spatial configurations. Both end-of-shaft and off-axis (side-shaft mounting) configurations are supported.

The MA732 features magnetic field strength detection with programmable thresholds to allow sensing of the magnet position relative to the sensor for creation of functions, such as the sensing of axial movements or for diagnostics.

On-chip non-volatile memory provides storage for configuration parameters, including the reference zero angle position, ABZ encoder settings, and magnetic field detection thresholds. Click here for more information: 

Features

• 9-Bit to 14-Bit Resolution Absolute Angle Encoder
• Contactless Sensing for Long Life
• SPI Serial Interface for Digital Angle Readout and Chip Configuration
• Incremental 12-Bit ABZ Quadrature Encoder Interface with Programmable Pulses Per Turn from 1 - 1024
• PWM Output 14-Bit
• Programmable Magnetic Field Strength Detection for Diagnostic Checks
• 3V, 12mA Supply
• -40°C to +125°C Operating Temperature
• Available in a QFN-16 (3mmx3mm) Package

TBMA732-Q-RD-00A Round Eval Board for MA732

The TBMA732-Q-RD-00A is the round test board for the MagAlpha magnetic position sensor MA732. This configuration is used for end shaft sensing.

It requires the communications kit (EVKT-MACOM) and the Macom App Software (see below) to evaluate MagAlpha functionality and performance with your set-up, such as noise level, refresh rate, power-up time, and magnetic field dependence.

In addition to this round test board, there is a long format version (LT) where the sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations. Click here for more information.

EVKT-MACOM MagAlpha Communication Kit

The EVKT-MACOM is a communication kit for the MagAlpha magnetic position sensor family. The EVKT-MACOM offers a seamless

connection and operation with MagAlpha test boards (TBMA) and evaluation kits (EVKTKNOB). The EVKT-MACOM kit contains a microcontroller motherboard, a collection of daughter boards adapted to different sensor boards, and the related cables. For more information CLICK HERE

Software

• No Software Licenses
• Use documentation in Test Procedure Section

Additional Information

• Understanding the MagAlpha Digital Filter: Benefits of the MA732 & MA330
• Angle Sensor Use Case: Robotics
• An Introduction to the MagAlpha Magnetic Angle Sensor Family
• MagAlpha Communication Kit EVKT-MACOM
• MagAlpha MA702 12-Bit, Digital, Contactless Angle Sensor with ABZ Incremental & PWM Outputs
• eMotion SystemTM Smart Motor Module Evaluation Kit EVKT-MSM942038-24
• Motor Control Board for Servo Motor MMP742038-24

Important Dates 

Terms and Conditions

Click Here to read the Terms and Conditions.

RoadTesters

shabaz due date Oct 23 2022

Guillaume_Martin due date Oct 23 2022

bac2348 due date Oct 23 2022

Cristi due date Oct 26 2022

DaveTheWalker due date Oct 26 2022