Siemens SINUMERIK 840D sl Operating Manual

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

Approaching a machining operationWhen approaching the programmed machining operation in the swiveled plane, under worstcase conditions, the software limit switches could be violated. In this case, the system travelsalong the software limit switches above the retraction plane. In the event of violation below theretraction plane, for safety reasons, the program is interrupted with an alarm. To avoid this,before swiveling, e.g. move the tool in the X/Y plane and position it as close as possible to thestarting point of the machining operation or define the retraction plane closer to the workpiece.RetractionBefore swiveling the axes you can move the tool to a safe retraction position. The retractionversions available are defined when starting up the system (commissioning).The retraction mode is modal. When a tool is changed or after a block search, the retractionmode last set is used.Machine manufacturerPlease refer to the machine manufacturer's specifications.WARNINGRisk of collisionYou must select a retraction position that avoids a collision between the tool and workpiecewhen swiveling.ToolTo avoid collisions, you can use the 5-axis transformation (software option) to define theposition of the tool tip during swiveling.● CorrectThe position of the tool tip is corrected during swiveling (tracking function).● No correctionThe position of the tool tip is not corrected (not tracked) during swiveling.Machine manufacturerPlease refer to the machine manufacturer's specifications.Programming technology functions (cycles)10.6 Further cycles and functionsTurning546 Operating Manual, 05/2017, A5E40868721