Distributed multi-axis motion and machine control system features dedicated real-time Gbit/s network

Written by: LG Motion Ltd | Published:

LG Motion's partnership with PMDi, the North American motion control technology leader, brings the Polaris™ multi-axis motion and machine control system. Polaris runs on a dedicated Gbit/s network with sophisticated PC software and high specification hardware modules for uncompromised distributed performance.

PMDi's Polaris™ is a complete motion and machine control system than runs on the company's own real-time Gbit/s Mercury™ network. With multi-axis motion controllers, servo amplifiers for brushed and brushless motors as well as high bandwidth galvanometers and voice coil actuators, plus digital and analogue I/O modules, Polaris perfectly complements LG Motion's comprehensive range of positioning mechanics and machine design expertise to enable customised automated sub-systems for applications across industry and research. The Polaris range will also be of benefit to system integrators and OEMs who require the flexibility of a distributed motion and machine control platform for their own automated machinery.

The Gbps Ethernet based Mercury communication (patent pending) is the highest speed real-time network available on the market today with the synchronisation of data acquisition and control in all amplifier and IO modules to within 10 nanoseconds, and with motion capability to 124 axes. For even faster timing coordination, the optional Pulsar module further reduces the sampling jitter to achieve sub-nanosecond synchronisation.

With the servo loop performed in the amplifier, enabling rates of up to 200kHz, advanced system performance features include advanced motion path planning, cubic splines, PVT profiles, and jerk limitation. Both the motion controller and the amplifier feature full 64-bit double floating point calculations for extremely high levels of positioning accuracy, fast servo feedback rates and sub-micron resolution for improved form and finish combined with high speed and acceleration controls that enable faster production throughput.

PMDi's Polaris motion control system includes multi-threaded customisable software that allows users to create their own scripts and user defined G-Codes. A powerful GUI is included that runs on Windows® systems. The range is fully supported with set-up, status, tuning, tutorials and help wizards that enable fast and straightforward system commissioning and programming.


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