Sensors specified
Nexen Lift Trucks has specified Curtiss-Wright NRH272 rotary sensors to detect steering position in its X-Range of electric lift trucks.
During its research and development process, Nexen identified the need for electric models and its latest X-Range includes the three-wheeled FBXT lift truck using a Nexen-designed and manufactured axle; and a four-wheel FBX version using a purpose-designed steering axle.
For both axle types, Nexen needed rotary position sensors that could detect steering position, with feedback from the sensor enabling control of the truck speed and direction, and displayed to the operator via a cabin-mounted Graphical User Interface (GUI).
Commenting for Nexen, technical manager Shaun Bailey says: “We needed a sensor that would combine maximum functionality with a design that was robust enough for our application. Angle range, redundancy, voltage range and versatility were all considered before we chose Curtiss-Wright.”
The Solution
A bespoke version of Curtiss-Wright’s NRH272 has been supplied with a 5V power supply option, 10-90% voltage output, Deutsch DT04 connectors and an electrical output set to correspond to rotations of between 20°and 360°. For added safety functionality, the sensor’s on-board diagnostic functions mean the outputs can enter into safe, pre-defined states should an internal sensor error be detected.
