Siemens SINUMERIK 840D sl Function Manual page 833

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
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]
Indexing data
MD30501 $MA_INDEX_AX_NUMERATOR[ AX4 ] ⇒
MD30330 $MA_MODULO_RANGE[ AX4 ] = 360.0
MD30502 $MA_INDEX_AX_DENOMINATOR[ AX4 ] = 18
MD30503 $MA_INDEX_AX_OFFSET[ AX4 ] = 5.0
MD30505 $MA_HIRTH_IS_ACTIVE[ AX4 ] = 0
Defining machine axis AX4 as rotary modulo axis and equidistant indexing axis
MD30300 $MA_IS_ROT_AX[ AX4 ] = 1
MD30310 $MA_ ROT_IS_MODULO[ AX4 ] = 1
MD30500 $MA_INDEX_AX_ASSIGN_POS_TAB[ AX4 ] = 3
Example 4: Rotary axes as equidistant indexing axis with restricted traversing range
Machine axis AX4 is a rotary axis with equidistant indexing. The equidistant indexing positions
are every 20°, starting at 100°. Positions less than 100° and greater than 260° should not be
approached. The following indexing positions are obtained:
100, 120, 140, 160, 180, 200, 220, 240, 260 [degrees]
Indexing data
MD30501 $MA_INDEX_AX_NUMERATOR[ AX4 ] = 360.0
MD30502 $MA_INDEX_AX_DENOMINATOR[ AX4 ] = 18
MD30503 $MA_INDEX_AX_OFFSET[ AX4 ] = 100.0
MD30505 $MA_HIRTH_IS_ACTIVE[ AX4 ] = 0
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
T1: Indexing axes
16.7 Examples
9. Indexing position = 1250 mm
10. Indexing position = 1650 mm
10 indexing positions in table 2
Indexing axis, indexing position table 2
This value is ignored for rotary modulo
axes, and MD30330 $MA_MODU‐
LO_RANGE (default value: 360°) is
used instead.
Number of indexing positions = 360° /
20° = 18
First indexing position = 5.0°
No Hirth gearing
Rotary axis
Modulo function active
Equidistant indexing axis
Numerator = 360°
Number of indexing positions = 360° /
20° = 18
First indexing position = 100.0°
No Hirth gearing
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