Siemens SINUMERIK 840D Function Manual

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Additional secondary conditions for modulo rotary axes● Permissible range: 0° ≤ indexing position < 360°● If the indexing axis is at the last indexing position in the indexing position table, whentraversing to the next indexing position in the positive direction of rotation, the first indexingposition is approached.● If the indexing axis is at the first indexing position in the indexing position table, whentraversing to the next indexing position in the negative direction of rotation, the last indexingposition is approached.No. of indexing positionsA maximum of 60 indexing positions can be entered in an indexing position table. The actualnumber of indexing positions that is used or the programmable number is defined usingmachine data:MD10900 $MN_INDEX_AX_LENGTH_POS_TAB_1 (number of indexing positions of indexingposition table 1)MD10920 $MN_INDEX_AX_LENGTH_POS_TAB_2 (number of indexing positions of indexingposition table 2)NoteEntries in the indexing positions table that exceed the parameterized number of indexingpositions are not considered.System of units for indexing positionsThe system of units of indexing positions is defined on an NC-specific basis:MD10270 $MN_POS_TAB_SCALING_SYSTEM = System of units0 Metric1 inchNoteThe machine data is only evaluated if the following applies: MD10260$MN_CONVERT_SCALING_SYSTEM == 1Displaying the actual indexing positionWhen traversing indexing axes, the machine data is used to define at which actual position thedisplay of the actual indexing position changes in the system variable$AA_ACT_INDEX_AX_POS_NO:T1: Indexing axes8.3 CommissioningAxes and spindlesFunction Manual, 06/2019, A5E47437747B AA 243