POSITAL: Kit Encoders

by Stage Directions

POSITAL used the Nuremberg automation fair, SPS, to present its substantially enhanced family of Kit Encoder. POSITAL's growing family of encoder solutions now includes easy-to-install magnetic kits for servo and stepper motors – including models with battery-free multiturn measurement ranges. Here’s a video from POSITAL on how to install a Kit Encoder on a motor:

POSITAL’s line of kit encoder solutions for motion control applications is designed to satisfy a wider range of needs faced by machine builders, system integrators, and motor manufacturers.

Kit encoders are component-level products, designed to be built into motors or other types of equipment where real-time measurement of rotary position (angular displacement) or rotational speed is required. Compared to POSITAL’s widely used IXARC series of self-contained encoders, kit encoders typically lack sealed housings, ball bearings or separate shafts. Instead, they are intended to fit inside the host machine’s casing, with rotating components connected directly to the machine’s shaft. This results in rugged, compact installations with direct measurement of rotational position and speed.

Brand new is a series of capacitive hollow-center kit encoders, especially designed for position feedback in motors, drives, and robot joint—and once again, offering multi-turn functionality without gears or batteries. The enhanced Kit Family is rounded out with compact incremental optical sets for small motors and drives.

The POSITAL kit Encoder family now includes:
Multi-turn, Battery-Free Magnetic Kit Encoders: These provide absolute position feedback in a compact, rugged, low-maintenance package. Multi-turn models feature a rotation counter that is self-powered, eliminating the need for backup batteries. This makes these units highly reliable and virtually maintenance-free. Variants for stepper motors that feature the same mounting footprint as popular incremental encoders are available, providing motor builders with a convenient upgrade path to absolute position control. POSITAL’s magnetic kit encoders support non-proprietary communications interfaces, including SSI, BiSS C and BiSS Line.

Through Hollow Kit Encoders are designed for installations where there are benefits to having the measurement element fit around a machine’s shaft or axle. With their slim design (only 18mm thick) and generous central opening (30 or 50mm), these are an excellent solution for many motor installations and compact robot joints. These devices are based on a capacitive measurement technology that combines accuracy with tolerance to shock and vibration, dust and moisture, and magnetic fields. Here again, battery-free multi-turn models are available.

Compact Incremental Optical Kit Encoders are optimized for speed control of small drives, low power motors and stepper motors. These devices are simple, robust and easy to install, with a mounting footprint that is compatible with optical kit encoders from other manufacturers. They are available with a wide range of resolutions.

Magnetic Kit encoders are currently available.
Further information from POSITA: www.posital.com