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New control functions for B&R's ACOPOS P3 servo drive

14 October 2019

B&R has added three new model-based control functions for its ACOPOS P3 servo drive. The functions are available in B&R's Automation Studio engineering environment and allow for more precise control performance that increases machine productivity and speed.

Reducing vibrations and oscillations extends the service life of machine components and reduces maintenance costs.

With model-based control and virtual sensors, elastic drive systems can be controlled more precisely. Both the motor mechanics and the payload being transported are considered in the control loop. A state controller reduces the resulting oscillations and quickly compensates for external disturbances. Positioning precision increases and the end position is reached faster. This increases both the performance of the machine and the product quality.

Optimal positioning curve

Intelligent feed-forward control results in an optimised encoder position curve and the reference position is adhered to precisely. Any position that can be derived from the mathematical model can be used as the reference position. In the past, two encoders were required to do this, but thanks to the intelligent feed-forward control, one encoder is sufficient.

Model-based control at the push of a button

Automation Studio makes it easier to set the optimum parameters for motion control systems. Autotuning is used to identify the system parameters and the parameters of the model-based feedback controller. There is no longer a need to identify the parameters manually.

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