Since absolute encoders provide the control system with an accurate report of the rotational angle and number of complete rotations of the encoder shaft at a specific point in time, they are a useful solution for many machinery positioning tasks.

Incremental encoders, on the other hand, provide a signal pulse every time the encoder shaft rotates by a specified angle. Their dynamic response makes them a suitable choice for monitoring rotational speed and direction. The combination of both measurement capabilities in a single device provides control system designers with extra flexibility. Moreover, the incremental signal can be used as a ‘heartbeat’ that confirms that the sensor is functioning normally.

IXARC incremental + absolute rotary encoders have communications interfaces that support both modes: RS-422, HTL, or TTL for incremental readings and SSI for absolute measurements.

Available multi-turn versions can count up to one million revolutions while incremental measurements have resolutions as high as 16,384 pulses per revolution. The full range of programmable options and features can be selected through the use of POSITAL’s new UBIFAST programming interface. The UBIFAST system includes a programming interface built into the encoders and a new UBIFAST configuration tool that enables users to program their devices through an easy-to-use WiFi-enabled user interface.

As with other POSITAL sensors, the new IXARC incremental + absolute encoders are available with multiple options for housing size and materials, flange configuration, shaft type and diameter, connection/wiring type and level of environmental protection – up to IP69K.