All pages
Powered by GitBook
1 of 3

Loading...

Loading...

Loading...

MAXSpline Encoder

Overview

The MAXSpline Encoder delivers high accuracy and robust performance while integrating seamlessly with the MAXSpline ecosystem. Using the same proven magnetic sensing architecture as the Through Bore Encoder V2, this model adds expanded connectivity through both ABI quadrature and CAN communication, giving teams more flexibility in how they collect and route sensor data. Its on-axis MA600 magnetic configuration ensures reliable readings even in environments where optical encoders struggle, and its ±0.5 degree calibrated accuracy supports precise control for a wide range of competitive robotics applications.

MAXSpline Encoder

Designed specifically for MAXSpline shafting, the encoder’s through-bore profile enables clean, compact integration directly over the shaft. The housing incorporates a combination of through holes and castellated #10-32 mounting points, all aligned to the standard 0.5in ION system pitch. This allows teams to mount the encoder in multiple orientations: parallel to nest within the profile of a 2x1 MAXTube, perpendicular for offset encoding, or even attached directly to MAXSpline Shaft Bearing Blocks and pattern plates. The result is a highly adaptable mechanical interface that supports creative layouts without requiring custom spacing or nonstandard hardware.

A dedicated Molex Micro-Fit+ connector provides power and CAN access for teams who want to bypass traditional sensor cabling to motor controllers, while the JST-PH port continues to support incremental and PWM absolute outputs. Two diffused edge-lit status LEDs allow users greater feedback at various viewing angles. With built-in magnet, factory zero calibration, and multiple connection pathways, the MAXSpline Encoder offers a versatile and competition-ready sensing solution.

Features

  • Incremental and absolute magnetic encoder

    • Quadrature output: A, B, and Index

    • Absolute pulse-width (duty-cycle) output

    • Uses MPS MA600 sensor in an on-axis magnetic configuration

  • Factory calibrated zero-position

    • Zero calibrated to notch in case

  • CAN communication support

  • Through-bore design

    • Easily mount to a MAXSpline shaft

Do not disassemble the sensor. Disassembling the MAXSpline Encoder will dereference the zero position with the physical case notch. It is not possible to recalibrate the zero position as it is permanently saved inside the sensor at the factory.

MAXSpline Encoder Onshape Examples

MAXSpline Encoder Specifications

General Specifications

Parameter
Value and Units

Sensor Type

MPS MA600

Connector #1

JST-PH 6-pin

Connector #2

Molex Micro-Fit+

Mounting Holes

#10 Clearance

Accuracy

Factory Calibrated to +/- 0.5 degree

Weight

75g (0.165 lb)

Electrical Specifications

Parameter
Min
Typ
Max
Units

Input Voltage - JST-PH 6-Pin

4.5

5.0

5.5

V

Input Voltage - Molex Micro-Fit+

-

12

30

V

Logic Level

Maximum RPM

-

-

4000

RPM

Incremental Output

Parameter
Min
Typ
Max
Units

Quadrature Resolution

-

2048

-

Cycles per Revolution

-

8192

-

Counts per Revolution

Index Pulse Width

-

0.04

-

Degree

Absolute PWM Output

Parameter
Min
Typ
Max
Unit

Period

-

1000

-

μs

Frequency

-

1

-

kHz

Minimum Pulse (0°)

-

3.884

-

μs

Maximum Pulse (360°)

-

998.06

-

μs

Pulse Resolution

-

12

-

bit

Technical Drawing

MAXSpline Encoder Ports Pinout

MAXSpline Encoder Firmware Changelog

Version 26.1.2

  • Adds new status period get/set commands

  • Fixes issue where updating from other firmware versions will reset the CAN ID

  • Adds the ability to adjust the absolute position output (period, minimum high time, minimum low time)

  • Updates default status frame periods

    • Status 0 - 250ms

    • Status 1 - 100ms

    • Status 2 - 20ms

    • Status 3 - 20ms

    • Status 4 - 20ms

Version 26.1.1

  • Fixes 'Set Periodic Frame Period' response command

  • Fixes 'Get Periodic Frame Period' command

  • Fixes angle conversion factor not being applied to the angle value

Version 26.1.0

  • Adds angle conversion factor

  • Improves velocity measurements

  • Adds velocity averaging

  • Fixes led status flickering when intermittent errors occur

  • Adds identify command

  • Adds raw angle position in status 2

  • Corrects angle offset behavior

Note: ABI output does not currently respect the inverted setting