Example 2: Indexing Axis As Linear Axis; Example 3: Rotary Modulo Axis As Equidistant Indexing Axis - Siemens SINUMERIK 840D Function Manual

T1: Indexing axes
8.6 Examples
8.6.2

Example 2: Indexing axis as linear axis

Machine axis AX6 is a workholder with 10 locations. The distances between the 10 locations
are different. The first location is at position -100 mm. Machine axis is AX6.
Figure 8-2
Indexing position table 2
MD10930 $MN_INDEX_AX_POS_TAB_2[ 0 ] = -100
MD10930 $MN_INDEX_AX_POS_TAB_2[ 1 ] = 0
MD10930 $MN_INDEX_AX_POS_TAB_2[ 2 ] = 100
MD10930 $MN_INDEX_AX_POS_TAB_2[ 3 ] = 200
MD10930 $MN_INDEX_AX_POS_TAB_2[ 4 ] = 300
MD10930 $MN_INDEX_AX_POS_TAB_2[ 5 ] = 500
MD10930 $MN_INDEX_AX_POS_TAB_2[ 6 ] = 700
MD10930 $MN_INDEX_AX_POS_TAB_2[ 7 ] = 900
MD10930 $MN_INDEX_AX_POS_TAB_2[ 8 ] = 1250
MD10930 $MN_INDEX_AX_POS_TAB_2[ 9 ] = 1650
Length of the indexing position table (1)
MD10920 $MN_INDEX_AX_LENGTH_POS_TAB_2 = 10
Defining machine axis AX5 as indexing axis
MD30500 $MA_INDEX_AX_ASSIGN_POS_TAB [AX6] = 2
8.6.3

Example 3: Rotary modulo axis as equidistant indexing axis

Machine axis AX4 is rotary modulo axis with equidistant indexing. Indexing starts at 5°. The
difference between the indexing positions is 20°.
The following indexing positions are obtained:
5, 25, 45, 65, 85, 105, 125, 145, 165, 185, 205, 225, 245, 265, 285, 305, 325, 245 [Degrees]
254
Indexing positions for a workholder
1st indexing position = -100 mm
2nd indexing position = 0 mm
3rd indexing position = 100 mm
4th indexing position = 200 mm
5th indexing position = 300 mm
6th indexing position = 500 mm
7th indexing position = 700 mm
8th indexing position = 900 mm
9th indexing position = 1250 mm
10. Indexing position = 1650 mm
10 indexing positions in table 2
Indexing axis, indexing position table 2
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA