Leadscrew error compensation (kw.ssfk.*)

Leadscrew error compensation (referred to below as SSFK) is an axial correction. The position setpoint of the compensated axis is changed by a compensation value in the position controller timing, in order to compensate for leadscrew errors, for instance. This correction is cancelled by computation for the measured actual position values so that the correction performed does not appear in the display data of the controller.

SSFK data is stored in the corresponding compensation value list for each axis. General data of the list body is entered in the structure kw.ssfk.*. It contains the following elements.