How does an EnDat encoder work?

EnDat (Encoder Data) is a proprietary protocol developed by Heidenhain of Germany. Like SSI, it is synchronous and features a point-to-point connection, with clock signals fed to the encoder by the controller with speeds to 4MHz.

What is EnDat?

EnDat is the ideal interface for digital drive systems and position control loops with position encoders for measurement feedback. EnDat provides high system reliability through the following features: Fast data transmission and high transmission reliability.

What is serial encoder?

Serial Output / Point to Point Encoder Protocols A serial interface connects one slave device to one master device. As such, it’s considered a point-to-point wiring scheme. When the master polls the encoder, the encoder returns a stream of clock pulses equivalent to the information received from the sensor.

What is hiperface encoder?

Hiperface DSL can provide up to 23 bits of resolution per revolution for single-turn encoders and up to 12 bits for multi-turn encoders. Hiperface DSL is a digital protocol for motor feedback systems based on a single cable. Two safety channels transmit absolute safe position information as well as encoder status.

What is magnetic encoder?

Magnetic encoder detects rotational position information as changes of the magnetic field, converts them into electrical signals, and outputs them. Magnetic encoders are used for applications that place importance on robust against environment, small size and lightweight, and high reliability.

What is DSL feedback?

HIPERFACE DSL® is a purely digital motor feedback protocol that uses a minimum of connection cables between the frequency converter and motor feedback system. It saves costs, requires less space, is easy to implement and offers the highest level of investment and machine safety at the same time.

What is multi turn encoder?

Multiturn encoders provide a measurement range of more than 360 degrees by additionally measuring the number of revolutions. The output signal is based on the number of revolutions as well as on the shaft position within one turn.

Where are absolute encoders used?

Absolute encoders are used in a wide range of applications that require monitoring or control, or both, of mechanical systems….These applications include;

  • Surgical robotics.
  • Diagnostic imaging.
  • Radiation therapy.
  • Satellite communications.
  • UAVs and ROVs.
  • Industrial robotics.
  • Photonics.
  • Microelectronics.

How do magnetic scales work?

A (or the scales) scale works by detecting a change in magnetic field and converting it to distance. The most common type of magnetosensitive device used in magnetic scales is a Hall effect sensor. This type of sensor can detect the presence of static magnetic field.

What is the EnDat interface?

The EnDat interface from HEIDENHAIN is a digital, bidirectional interface for encoders. It is capable of transmitting position values from incremental and absolute encoders as well as transmitting or updating information stored in the encoder, or saving new information. Thanks to the serial transmission method, only four signal lines are required.

Why choose EnDat encoders?

1. EnDat has one of the widest ranges of encoder offerings. EnDat has long been a standard offering in encoder solutions from HEIDENHAIN. From sealed linear scales for machine tools to exposed angle encoders for telescopes, to rotary encoders used in robots: EnDat encoders come in all types of shapes and sizes to meet various application needs.

How has EnDat evolved over the years?

HEIDENHAIN’s EnDat 2.2 interface is well known as a digital, bidirectional interface for encoders. It is capable of both transmitting position values from encoders as well as updating information stored in the encoder. However, over the years, EnDat has evolved to new heights and there are features today that may be surprising to some.

Can the EnDat Master be implemented with a microcontroller?

The EnDat master can be implemented with a microcontroller Traditionally the EnDat master has come as a pre-packaged FPGA solution. Over the years, with increased support from HEIDENHAIN, this situation has changed.