Table Of Contents - Siemens Sinumerik 840D sl Programming Manual

Table of contents

1 Principles of programming ......................................................................................................................... 7
1.1 Introductory comments ..................................................................................................................7
1.1.1 Siemens mode ...............................................................................................................................7
1.1.2 ISO dialect mode ...........................................................................................................................7
1.1.3 Switching between the modes .......................................................................................................7
1.1.4 Display of the G code.....................................................................................................................8
1.1.5 Maximum number of axes/axis identifiers......................................................................................8
1.1.6 Decimal point programming ...........................................................................................................8
1.1.7 Comments....................................................................................................................................10
1.1.8 Skip block.....................................................................................................................................10
1.2 Preconditions for the feed ............................................................................................................11
1.2.1 Rapid traverse..............................................................................................................................11
1.2.2 Path feed (F function) ..................................................................................................................11
1.2.3 Fixed feedrates F0 to F9..............................................................................................................13
1.2.4 Linear feed (G94).........................................................................................................................15
1.2.5 Inverse-time feed (G93) ...............................................................................................................15
1.2.6 Revolutional feedrate (G95).........................................................................................................16
2 Drive commands...................................................................................................................................... 17
2.1 Interpolation commands...............................................................................................................17
2.1.1 Rapid traverse (G00) ...................................................................................................................17
2.1.2 Linear interpolation (G01) ............................................................................................................18
2.1.3 Circular interpolation (G02, G03) .................................................................................................19
2.1.4 Contour definition programming and addition of chamfers or radiuses .......................................22
2.1.5 Helical interpolation (G02, G03)...................................................................................................25
2.1.6 Involute interpolation (G02.2, G03.2)...........................................................................................26
2.1.7 Cylindrical interpolation (G07.1)...................................................................................................27
2.2 Reference point approach with G functions.................................................................................30
2.2.1 Reference point approach with intermediate point (G28) ............................................................30
2.2.2 Checking the reference position (G27) ........................................................................................32
2.2.3 Reference point approach with reference point selection (G30) .................................................33
3 Motion commands ................................................................................................................................... 35
3.1 The coordinate system.................................................................................................................35
3.1.1 Machine coordinate systems (G53) .............................................................................................36
3.1.2 Workpiece coordinate system (G92) ...........................................................................................37
3.1.3 Resetting the tool coordinate system (G92.1) .............................................................................38
3.1.4 Selection of a workpiece coordinate system................................................................................38
3.1.5 Writing work offset/tool offsets (G10)...........................................................................................38
3.1.6 Local coordinate system (G52) ....................................................................................................40
3.1.7 Selection of the plane (G17, G18, G19) ......................................................................................41
3.1.8 Parallel axes (G17, G18, G19).....................................................................................................42
3.1.9 Rotation of the coordinate system (G68, G69) ............................................................................43
3.1.10 3D rotation G68/G69....................................................................................................................45
3.2 Defining the input modes of the coordinate values......................................................................46
3.2.1 Absolute/incremental dimensioning (G90, G91) ..........................................................................46
3.2.2 Inch/metric input (G20, G21)........................................................................................................47
ISO Milling
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
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