Motion Reference Guide: Software Keeps Linear-Stage Integration Straight

In the past, machine builders often made their own linear actuators. They typically assembled, programmed, and troubleshot multiple components from different suppliers, including separate servodrives and control systems. Those performing the mechanical and electrical integration needed experience, performed detailed calculations, and allowed for linear-feedback devices and forces from magnetic attraction when using direct-drive linear motors. • Integrated linear actuators combine all aspects of linear motion in a single piece of hardware. • Software selects type of linear actuator based on application and performance parameters. • Designers no longer need concern themselves with connectivity between diverse components. Software integration presented additional challenges. Complex application routines and custom configuration of individual components turned programming and debugging into a protracted and painstaking trial-and-error process. The amount of time and effort needed to set up, configure, and commission these devices led many designers to alternative options, such as pneumatic actuators or timing-belt drives, when a linear motor or ball screw would have been the better choice. Design