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Contents
1 Introduction ..............................................................9
1.1 The Part Program ......................................................9
Word ...............................................................9
Address Chain .........................................................9
Block ..............................................................10
Program Number and Program Name ......................................10
Beginning of Program, End of Program ......................................10
Program Format in the Memory ...........................................10
Program Format in Communications with External Devices .......................10
Main Program and Sub-program ..........................................10
DNC Channel ........................................................11
1.2 Fundamental Terms ....................................................12
2 Controlled Axes .........................................................17
2.1 Names of axes .......................................................17
2.2 Unit and Increment System of Axes ........................................17
3 Preparatory Functions (G codes) ............................................19
4 The Interpolation ........................................................22
4.1 Positioning (G00) .....................................................22
4.2 Linear Interpolation (G01) ...............................................22
4.3 Circular and Spiral Interpolation (G02, G03) .................................24
4.4 Helical Interpolation (G02, G03) ..........................................27
4.5 Equal Lead Thread Cutting (G33) .........................................29
4.6 Polar Coordinate Interpolation (G12.1, G13.1) ...............................31
4.7 Cylindrical Interpolation (G7.1) ...........................................35
5 The Coordinate Data .....................................................38
5.1 Absolute and Incremental Programming (G90, G91), Operator I ..................38
5.2 Polar Coordinates Data Command (G15, G16) ...............................38
5.3 Inch/Metric Conversion (G20, G21) .......................................40
5.4 Specification and Value Range of Coordinate Data ............................40
5.5 Rotary Axis Roll-over ..................................................41
6 The Feed ...............................................................45
6.1 Feed in rapid travers ...................................................45
6.2 Cutting Feed Rate .....................................................45
6.2.1 Feed per Minute (G94) and Feed per Revolution (G95) ....................46
6.2.2 Clamping the Cutting Feed ..........................................47
6.3 Automatic Acceleration/Deceleration .......................................48
6.4 Feed Control Functions .................................................49
6.4.1 Exact Stop (G09) .................................................49