Compensate for mechanical variances in a machine component
- High-level application solutions
Drive-level error correction helps to digitally correct mechanical inaccuracies in a component of the system.
Every physical component (for example a bearing or a rail) has its own built-in tolerances which potentially reduce accuracy of the overall system. Using axis-level error correction, an Elmo drive can compensate for such tolerances “virtually” during motion.
In order to perform error correction, drivers use a teach process (normally done with an external calibration device) to map any inaccuracies and produce the compensating data.
After it is preloaded into the driver, this data is automatically added to the motion trajectory ‘on-the-fly’.
The following graph shows a before-and-after plot for driver error correction on a typical component:
The following detailed zoom shows the data level used for motion compensation: