Siemens SINUMERIK 840D sl Function Manual

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

Leading axisThe leading axis is the → gantry axis that exists from the point of view of the operator andprogrammer and, thus, can be influenced like a standard NC axis.Leadscrew error compensationCompensation for the mechanical inaccuracies of a leadscrew participating in the feed. Thecontroller uses stored deviation values for the compensation.Limit speedMaximum/minimum (spindle) speed: The maximum speed of a spindle can be limited byspecifying machine data, the → PLC or → setting data.Linear axisIn contrast to a rotary axis, a linear axis describes a straight line.Linear interpolationThe tool travels along a straight line to the destination point while machining the workpiece.Load memoryThe load memory is the same as the → working memory for the CPU 314 of the → PLC.Look AheadThe Look Ahead function is used to achieve an optimal machining speed by looking aheadover an assignable number of traversing blocks.Machine axesPhysically existent axes on the machine tool.Machine control panelAn operator panel on a machine tool with operating elements such as keys, rotary switches,etc., and simple indicators such as LEDs. It is used to directly influence the machine tool viathe PLC.Machine coordinate systemA coordinate system, which is related to the axes of the machine tool.GlossaryBasic Functions1690 Function Manual, 01/2015, 6FC5397-0BP40-5BA2