Siemens SINUMERIK 840D sl Function Manual

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MD35240 $MC_ACCEL_TYPE_DRIVE = FALSE (acceleration characteristic DRIVE for axeson/off)4.3.3.3 Rounding with maximum possible axial dynamic response (G644)FunctionMaximizing the dynamic response of the axes is key to this type of continuous-path mode withrounding.NoteRounding with G644 is only possible if:● All the axes involved contain only a linear motion in both the observed blocks.● No kinematic transformation is activeIn case an involved axis contains a polynomial (polynomial programmed, spline active,compressor active) or a kinematic transformation is active, the block transition is rounded withG642.ActivationContinuous-path mode with rounding with the maximum possible axial dynamic response canbe activated in any NC part program block by the modal command G644.Selecting the exact stop which works on a block-by-block basis enables rounding to beinterrupted (G9).Continuous-path mode with rounding with the maximum possible axial dynamic response(G644) can be deactivated by selecting:● Modal exact stop (G60)● Continuous-path mode G64, G641, G642, G643 or G645ParameterizationRounding behavior with G644 is configured via the thousands and tens of thousands placesin the machine data:MD20480 $MC_SMOOTHING_MODE (rounding behavior with G64x)Value MeaningThousand's place:0xxx: When rounding with G644, the maximum deviations for each axis specified by the followingmachine data are respected:MD33100 $MA_COMPRESS_POS_TOLIf the dynamics of the axis permit, then any specified tolerance is not utilized.1xxx: Input the maximum rounding path by programming ADIS=... or ADISPOS=...(as for G641)B1: Continuous-path mode, Exact stop, Look Ahead4.3 Continuous-path modeBasic FunctionsFunction Manual, 01/2015, 6FC5397-0BP40-5BA2 195