Siemens SINUMERIK 840D sl Programming Manual

Also see for SINUMERIK 828D Turning: Diagnostic manual Function manual Equipment manual Programming manual Operating manual

GlossaryFundamentalsProgramming Manual, 09/2011, 6FC5398-1BP40-2BA0 575Intermediate blocksMotions with selected → tool offset (G41/G42) may be interrupted by a limited number ofintermediate blocks (blocks without axis motions in the offset plane), whereby the tool offsetcan still be correctly compensated for. The permissible number of intermediate blocks whichthe control reads ahead can be set in system parameters.InterpolatorLogic unit of the → NCK that defines intermediate values for the motions to be carried out inindividual axes based on information on the end positions specified in the part program.Interpolatory compensationInterpolatory compensation is a tool that enables manufacturing-related leadscrew error andmeasuring system error compensations (SSFK, MSFK).Interrupt routineInterrupt routines are special → subroutines that can be started by events (external signals)in the machining process. A part program block which is currently being worked through isinterrupted and the position of the axes at the point of interruption is automatically saved.Inverse-time feedrateWith SINUMERIK 840D, the time required for the path of a block to be traversed can beprogrammed for the axis motion instead of the feed velocity (G93).JOGControl operating mode (setup mode): In JOG mode, the machine can be set up. Individualaxes and spindles can be traversed in JOG mode by means of the direction keys. Additionalfunctions in JOG mode include: → Reference point approach, → Repos, and → Preset (setactual value).Key switchThe key switch on the → machine control panel has four positions that are assignedfunctions by the operating system of the control. The key switch has three different coloredkeys that can be removed in the specified positions.KeywordsWords with specified notation that have a defined meaning in the programming language for→ part programs.