Siemens SINUMERIK 840D sl Function Manual page 948

Indexing Axes (T1)
16.6 Starting up indexing axes
Machine data examples
The assignment of the above machine data is described in the following paragraphs using
two examples.
Example of indexing axis as rotary axis
Tool turret with 8 locations. The tool turret is defined as a continuously rotating rotary axis.
The distances between the 8 turret locations are constant. The first turret location is located
at position 0°:
Figure 16-3
The indexing positions for the tool turret are entered in indexing position table 1.
MD10910 $MN_INDEX_AX_POS_TAB_1[0] = 0
MD10910 $MN_INDEX_AX_POS_TAB_1[1] = 45
MD10910 $MN_INDEX_AX_POS_TAB_1[2] = 90
MD10910 $MN_INDEX_AX_POS_TAB_1[3] = 135
MD10910 $MN_INDEX_AX_POS_TAB_1[4] = 180
MD10910 $MN_INDEX_AX_POS_TAB_1[5] = 225
MD10910 $MN_INDEX_AX_POS_TAB_1[6] = 270
MD10910 $MN_INDEX_AX_POS_TAB_1[7] = 315
Other machine data:
MD10900 $MN_INDEX_AX_LENGTH_POS_TAB_1= 8 ;
MD10900 $MA_INDEX_AX_ASSIGN_POS_TAB [AX5]
= 1
MD10900 $MA_IS_ROT_AX [AX5] = 1
MD10900 $MA_ ROT_IS_MODULO [AX5] = 1
948
Example: Tool turret with 8 locations
; 1st indexing position at 0°
; 2nd indexing position at 45°
; 3rd indexing position at 90°
; 4th indexing position at 135°
; 5th indexing position at 180°
; 6th indexing position at 225°
; 7th indexing position at 270°
; 8th indexing position at 315°
8 indexing positions in table 1
; Axis 5 is defined as indexing
; axis
Indexing positions in table 1
; Axis 5 is rotary axis
; Modulo conversion is activated
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions