B&R upgrades ACOPOS servo drives to correct following errors | Automation.com

B&R upgrades ACOPOS servo drives to correct following errors

B&R upgrades ACOPOS servo drives to correct following errors

May 7, 2014 - B&R upgrades ACOPOS servo drives with repetitive control to improve the accuracy of production processes with stationary disturbances by using predictive following error compensation. The performance of the machine or system is increased without a great deal of additional effort. Repetitive control is available for all ACOPOS models simply by installing a firmware update.

When using position-controlled drives with constant speed, mechanical conditions can cause stationary disturbing torque fluctuations, which often results in following error localized to a certain area. Optimizing the drive controller configuration can minimize these lag errors but will not be able to completely prevent the disturbance.

Embedded in the standard speed control loop for the ACOPOS drive family, repetitive control adjusts the torque setpoint of the drive in a way that drastically reduces the periodic portions in the speed or following error. The algorithm undergoes a constant learning process so that changes to the load profile – caused by wear, for example – have no effect whatsoever on the drive due to predictive compensation for disturbances.

Available as an add-on to the standard control procedure, active disturbance suppression is easy and intuitive to configure, not even requiring a mathematical model thanks to the extremely adaptive nature of the algorithm.

B&R company profile
B&R Industrial Automation, Inc. North America, based in Atlanta, GA, has been working closely with its customers since 1987. Since then, B&R North America has continuously grown as a sales and support organization through both direct sales offices and B&R’s unique Automation Partner distribution network. Today, B&R North America has a network of 25 offices throughout the USA and Canada and is there for its customers locally. 

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