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Rotary Encoder

For over 30 years, DMM has been self-developing rotary encoders for motion control.  Our encoders are designed to be high resolution and robust so it can withstand any application reliably for many years.

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We primarily focus on magnetic sensors, utilizing simple and cost effective components to build the sensor.  Then using advanced and high speed calculation algorithms to calculate the final position.  Using this technology, we can achieve basic 16-bits of resolution (65,536ppr) or advanced 20-bits of resolution (1,048,576ppr).

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All our encoders also feature built-in calibration procedures to self-calibrate the index position relative to the motor commutation.  During operation, the encoder also self-calibrates in real time to account for temperature, vibration and mounting fluctuations to optimize the accuracy.

Encoder Product Outline

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ABS-16-00​

Features

  • Non-contact magnetic sensor

  • ABS-16-00 model: 46mm diameter and ABS-16-01 model: 33mm diameter

  • Single-turn, 16-bit resolution

  • Multi-turn, 32-bit total resolution (16bit Single + 16bit Multi)

  • 100us data update frequency

  • Active sensor optimization - high mounting tolerance, high noise immunity

  • Standard RS485 4-Wire Interface using SN75176 or equivalent

  • Proprietary 1.875Mbps 4-Byte communication protocol

Documentation

ABS-16 Single-Turn Absolute Encoder - 2017 Brochure

ABS-16 Multi-Turn Absolute Encoder - 2018 Brochure

ABS-16 Multi-Turn Servo System - Operation and Ordering Guide

DMM ABS Encoder Communication Protocol

Mounting and Calibration Guide for OEM

ABS-16-LP1

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Features

  • Non-contact magnetic sensor

  • Real-time sensor calibration algorithm for consistent accuracy

  • Single-turn absolute, 16-bit resolution

  • Multi-turn absolute option

  • High electrical and magnetic noise immunity

  • Active sensor optimization - high mounting tolerance, high noise immunity

  • 8-bit CRC, 32-byte EEPROM memory

  • 9mm height, 46/50mm diameter

  • Exposed PCB (LP1-EC) or Enclosed option (LP1-CV)

Documentation

ABS-16-LP Absolute Encoder - 2017 Brochure

DMM ABS Encoder Communication Protocol

ABS-16-LP1

ABS-20-00

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Features

  • Non-contact inductive sensor

  • Single-turn, 20-bit resolution absolute

  • Multi-turn, 32-bit total resolution (20bit Single + 12bit Multi)

  • 33us data update frequency

  • Active sensor optimization - high mounting tolerance, high noise immunity

  • Standard RS485 4-Wire Interface using SN75176 or equivalent

  • Proprietary 1.875Mbps 4-Byte communication protocol

  • Rigid Construction

Documentation

Sensor Technology Overview Video

DSN05

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Features

  • Non-Contact Shaft-Sensor Coupling

  • Hall Effect Sensor Array Measurement Technology

  • 256 ~ 5,000 P/T Resolution [ 1,024 ~ 20,000 C/T ]

  • Simple Commutation Tuning for Servo Motor Applications

  • Standard ABZUVW Quadrature Output

  • -30 °C ~ +100 °C Operating Temperature

  • IP00 Protection

  • Cost Effective

  • Shielded, twisted pair robot grade cable

Documentation

DSN05 User Manual - [DMMDSNR05_PM80AT03] REV. AT-03

Mounting Manual [DMMDSN05_INMT] Rev. 1.2

DSN05

DSN08

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Features

  • Non-Contact Shaft-Sensor Coupling

  • Magnetic Sensor

  • 256 ~ 5,000 P/T Resolution [ 1,024 ~ 20,000 C/T ]

  • Hall Effect Sensor Array Measurement Technology

  • Simple Commutation Tuning for Servo Motor Applications

  • Standard ABZ Optional UVW Quadrature Output

  • -30 °C ~ +110 °C Operating Temperature

  • IP40 Protection

  • Shielded, twisted pair robot grade cable

Documentation

DSN08 Product Manual - [DMMDSNR08_PM80AT03] REV. AT-03

Mounting Manual [DMMDSN05_INMT] Rev. 1.2

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