Siemens SINUMERIK 840D sl Function Manual page 1690

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Table of Contents

Leading axis

The leading axis is the → gantry axis that exists from the point of view of the operator and

programmer and, thus, can be influenced like a standard NC axis.

Leadscrew error compensation

Compensation for the mechanical inaccuracies of a leadscrew participating in the feed. The

controller uses stored deviation values for the compensation.

Maximum/minimum (spindle) speed: The maximum speed of a spindle can be limited by

specifying machine data, the → PLC or → setting data.

In contrast to a rotary axis, a linear axis describes a straight line.

Linear interpolation

The tool travels along a straight line to the destination point while machining the workpiece.

The load memory is the same as the → working memory for the CPU 314 of the → PLC.

The Look Ahead function is used to achieve an optimal machining speed by looking ahead

over an assignable number of traversing blocks.

Machine axes

Physically existent axes on the machine tool.

Machine control panel

An 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 via

Machine coordinate system

A coordinate system, which is related to the axes of the machine tool.

Function Manual, 01/2015, 6FC5397-0BP40-5BA2

Basic Functions

Sinumerik 828d Sinumerik 840de sl