Siemens SINUMERIK 840D sl Function Manual

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A preprocessing stop with synchronization is triggered by PRESETON. The actual position isnot assigned until the axis is at standstill.If the axis is not assigned to the channel at PRESETON, the further procedure depends on theaxis-specific configuration of the axis interchange behavior:MD30552 $MA_AUTO_GET_TYPEReferencing statusBy setting a new actual value in the machine coordinate system, the referencing status of themachine axis is reset.DB31, ... DBX60.4/.5 = 0 (referenced/synchronized measuring system 1/2)It is recommended that PRESETON only be used for axes that do not require a reference point.To restore the original machine coordinate system, the measuring system of the machine axismust be referenced again, e.g. through active referencing from the part program (G74).CAUTIONLoss of the referencing statusBy setting a new actual value in the machine coordinate system with PRESETON, thereferencing status of the machine axis is reset to "not referenced/synchronized".ProgrammingSyntaxPRESETON(, [, , , ... ,])MeaningPRESETON: Actual value setting with loss of the referencing statusPreprocessingstop:YesAlone in the block: Yes: Machine axis nameType: AXISRange of values: Machine axis names defined in the channel: New actual value of the machine axis in the machine coordinate system(MCS)The input is made in the current valid system of units (inch/metric)An active diameter programming (DIAMON) is taken into accountType: REALK2: Axis Types, Coordinate Systems, Frames10.4 Coordinate systemsBasic FunctionsFunction Manual, 01/2015, 6FC5397-0BP40-5BA2 687