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Linear encoder

For piston positions in hydraulic cylinders

Sick has developed the DAX linear encoder family providing CANopen connectivity.

The detection of a linear position is contactless – and therefore wear and maintenance free – based on magneto-striction (Source: Sick)

The sensors are used for the high-precision detection and reporting of piston positions in hydraulic cylinders as well as for monitoring linear movements in machines. The product family offers three designs to suit these applications. An online configurator provides step-by-step assistance to users in selecting a suitable linear encoder. The linear sensor does not require reference runs. In addition to this, it offers diagnostic functions. This opens up the possibility for using the sensors for condition monitoring and integration into Industry 4.0 environments. For electrical installation, the sensor family offers a CANopen interface.

The sensor is suitable for measuring positions in different applications, including injection molding machines, presses, printing and packaging machines, wind, hydro and solar plants, in wood processing, or medical technology. Three housing variants are available: a design for integration into industrial hydraulic cylinders, a flat type with block magnets for mounting in tight installation situations, as well as a version with a slide profile that guides the position magnet, thereby ensuring a very precise and repeatable position measurement. The available measuring range is between 50 mm and 2500 mm, and is configurable in 1-mm increments.

The magneto-strictive functionality of the linear encoder uses a precise and reliable time-of-flight (ToF) measurement method. This non-contact and therefore wear-free principle of operation eliminates almost any maintenance during operation. The products come in an enclosure rating of IP65 and IP67 as well as a temperature range between -40 °C and +85 °C. Their rugged design ensures shock and vibration resistance. Diagnostic functions optimize the efficient machine operation. Diagnostic information is available at the CANopen interface. The sensors monitor operating and limit temperatures, as well as the voltage supply for voltage peaks or voltage drops. They perform continuous functional checks of the position magnets, count piston strokes, add them to determine total displacements, and also record operating hours.

hz

Publish date
2023-01-23
Company

Sick

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Publish date
2023-01-23
Company

Sick

Breadcrumb