Friction compensation
Friction effects in the drive train may cause marks or dimensional variations on the workpiece surface at points in the machining process where a change in axis direction occurs (reversing). The purpose of friction compensation is to minimise these effects and enhance machining results.
Compensation process
Friction compensation reduces position lag and improves surface quality. At the same time, it relieves pressure on the speed controller and when activated, it permits the greater use of dynamic parameters and this reduces machining time.
Notice
Friction compensation can be activated for SERCOS and CANopen drives. This requires the installation of an additive torque interface (additive current) which requires configuration.
Characteristics
- When friction compensation is selected, it is active directly after controller start-up
- Friction compensation reduces position lag and axis backlash and increases accuracy.
- Friction compensation is available for all drive types.
Effectiveness
Friction compensation is only effective if all the following conditions are fulfilled:
- The function was activated in the axis parameter list with P-AXIS-00522 (TRUE) or was enabled by an NC command.
- The compensation value table [COMP] was provided.