Compensating for errors in advance
B&R servo drives detect and correct lag error automatically B&R continues to expand the functionality of its ACOPOS line of servo drives. Repetitive control – B&R's latest advancement – considerably improves [...] rolled drives with constant speed, mechanical conditions can cause stationary disturbing torque fluctuations, which often results in lag error localized to a certain area. Optimizing the drive controller [...] algorithm 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