Motion Control

Direct drive servo motor

Motion Control

Modern automation solutions used for the lastest production machinery become more and more challenging. These solutions focus on increased productivity, faster development and implementation, easier scalability and greater flexibility at lower costs.

To address this needs designs tend to shift towards adopting flexible programmable equipment with precise motion control. Our approach in implementing these solutions is typically by using our modular platform. This platform consist of the following parts.

A Logical or NC controller able to translate even the most flexible production demands into a logic control flow which determines the needed trajectories and synchronizations of the available axis. This caters for an easy upgrade path and ensures the flexibility of the offered solution. This allows us to easily modify and add needed trajectories and synchronizations. It enables a straight forwards way to link the motioncontroller with regular IO, vision or MES data. Furthermore it is an ideal way to coordinate the interaction and synchronization of machine modules with one or several robots.

A centralised motion controller, consisting of a trajectory generator and an open or closed controller for every individual axis. Having the motion intelligence centralized allows for precise synchronization of any number of axis and gives additional flexibility as this solution is ignorant of drive type and motor type. Using a range of widely adopted industy standard fieldbusses and feedback interfaces, gives us the opportunity to make the optimal choice of motortype and drive electronics across different brands.

The axis can be driven by either asynchronous, stepper, DC, rotary synchronous servo or linear motors. Depending on the required accuracy and tracking behaviour  a suitable measuring device is used closing the control loop. Typically, the devices used range from simple resolver to high end glass scale encoders.

When we choose motor and drives, great care is taken to provide you with the most efficient solution. We aim on minimizing the mechanical requirements wether it is by opting for direct drive solutions where possible, by increasing servobandwidth applying filters.

Last but not least, during electrical engineering of the solution, we try to find an optimum between cabling cost and reliabily opting for one cable solutions, modular grouping of drives and nearby drives where suited.