Siemens SINUMERIK 808D User Manual page 6

11.2.11 NC block compression (COMPON, COMPCURV, COMPCAD) ................................................................... 89
11.3 Linear interpolation ............................................................................................................................................... 91
11.3.1 Linear interpolation with rapid traverse: G0...................................................................................................... 91
11.3.2 Feedrate F ............................................................................................................................................................. 92
11.3.3 Linear interpolation with feedrate: G1 ............................................................................................................... 92
11.4 Circular interpolation ............................................................................................................................................ 93
11.4.1 Circular interpolation: G2, G3 ............................................................................................................................. 93
11.4.2 Circular interpolation via intermediate point: CIP ............................................................................................ 98
11.4.3 Circle with tangential transition: CT ................................................................................................................... 99
11.4.4 Helix interpolation: G2/G3, TURN ...................................................................................................................... 99
11.4.5 Feedrate override for circles: CFTCP, CFC ................................................................................................... 100
11.5 Thread cutting ..................................................................................................................................................... 101
11.5.1 Thread cutting with constant lead: G33 .......................................................................................................... 101
11.5.2 Tapping with compensating chuck: G63 ......................................................................................................... 102
11.5.3 Thread interpolation: G331, G332 ................................................................................................................... 103
11.6 Fixed point approach.......................................................................................................................................... 104
11.6.1 Fixed point approach: G75 ................................................................................................................................ 104
11.6.2 Reference point approach: G74 ....................................................................................................................... 105
11.7 Acceleration control and exact stop/continuous path ................................................................................... 105
11.7.1 Acceleration pattern: BRISK, SOFT ................................................................................................................ 105
11.7.2 Exact stop/continuous-path control mode: G9, G60, G64 ........................................................................... 106
11.7.3 Dwell time: G4 ..................................................................................................................................................... 108
11.8 Spindle movements ............................................................................................................................................ 109
11.8.1 Gear stages ......................................................................................................................................................... 109
11.8.2 Spindle speed S, directions of rotation............................................................................................................ 109
11.8.3 Spindle positioning: SPOS ................................................................................................................................ 110
11.9 Contour programming support.......................................................................................................................... 110
11.9.1 Contour definition programming ....................................................................................................................... 110
11.9.2 Rounding, chamfer ............................................................................................................................................. 112
11.10 Tool and tool offset ............................................................................................................................................. 115
11.10.1 General Information............................................................................................................................................ 115
11.10.2 Tool T.................................................................................................................................................................... 116
11.10.3 Tool compensation number D........................................................................................................................... 116
11.10.4 Selecting the tool radius compensation: G41, G42....................................................................................... 119
11.10.5 Corner behavior: G450, G451 .......................................................................................................................... 121
11.10.6 Tool radius compensation OFF: G40 .............................................................................................................. 122
11.10.7 Special cases of the tool radius compensation.............................................................................................. 123
11.10.8 Example of tool radius compensation ............................................................................................................. 124
11.11 Miscellaneous function M .................................................................................................................................. 125
11.12 H function ............................................................................................................................................................. 125
11.13 Arithmetic parameters, LUD and PLC variables............................................................................................ 126
11.13.1 Arithmetic parameter R ...................................................................................................................................... 126
11.13.2 Local User Data (LUD)....................................................................................................................................... 127
11.13.3 Reading and writing PLC variables.................................................................................................................. 128
11.14 Program jumps .................................................................................................................................................... 129
11.14.1 Unconditional program jumps ........................................................................................................................... 129
11.14.2 Conditional program jumps ............................................................................................................................... 129
11.14.3 Program example for jumps .............................................................................................................................. 131
11.14.4 Jump destination for program jumps ............................................................................................................... 132
11.15 Subroutine technique ......................................................................................................................................... 132
11.15.1 General information ............................................................................................................................................ 132
11.15.2 Calling machining cycles ................................................................................................................................... 134
11.15.3 Modal subroutine call ......................................................................................................................................... 134
11.15.4 Executing internal and external subroutines (CALL, EXTCALL) ................................................................ 135
11.16 Timers and workpiece counters ....................................................................................................................... 136
11.16.1 Runtime timer ...................................................................................................................................................... 136
11.16.2 Workpiece counter.............................................................................................................................................. 138
11.17 Smooth approach and retraction...................................................................................................................... 139
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Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017