PI (Physik Instrumente) is launching the C-884 four-axis digital servo controller for closed-loop precision positioning systems. It is designed to control motorised linear translation stages and rotary positioners with very high accuracy and repeatability. The high-speed encoder interface enables direct-metrology linear and angular scales to be used, with resolutions down to the nanometre and microrad realm and below.
PI's new controller is equipped with a dual-core architecture for fast servo handling and command interpretation, and software tools are provided for ease of operation. The included PIMikroMove software helps the user to get up to speed quickly, without the need for writing a single line of code. For programmers, PI's General Command Set (GCS) simplifies the development of custom applications, significantly reducing the risk for errors because the commands for all supported PI devices are identical in syntax and function. Through the use of the GCS command set with its convenient functions, the orientation phase and application development process is accelerated. The GCS commands are available at the controller terminal, in macros and in the form of a universal driver set for LabVIEW (VIs), Windows dynamic link libraries (DLL) and Linux libraries.
Other useful functions for programmers and users are the data recorder (real-time recording or motor voltage, velocity, actual position and position errors, etc) and the standalone capability that is made possible by means of a computer-independent macro programming language that runs on the controller.
This new servo positioning controller supports several motion profiles, linear vector motion and point-to-point motion. PID parameters can be changed on the fly, with a servo update rate of 20kHz. Communication is through industry standard TCP/IP, USB and RS-232 interfaces.
Follow the link for more information about PI motion controllers and positioning systems.
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