Siemens SINUMERIK Series Function Manual

T1: Indexing axes
15.8 Examples
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
791
15.8 Examples
15.8.1 Examples of equidistant indexes
Modulo rotary axis
MD30502 $MA_INDEX_AX_DENOMINATOR[AX4] = 18
MD30503 $MA_INDEX_AX_OFFSET[AX4] = 5
MD30500 $MA_INDEX_AX_ASSIGN_POS_TAB[AX4] = 3
MD30300 $MA_IS_ROT_AX[AX4] = TRUE
MD30310 $MA_ROT_IS_MODULO[AX4] = TRUE
With the machine data above, axis 4 is defined as a modulo rotary axis and an indexing axis
with equidistant positions every 20° starting at 5°.
The following indexing positions result:
5, 25, 45, 65, 85, 105, 125, 145, 165, 185, 205, 225, 245, 265, 285, 305, 325 and 245
degrees.
Note
The assignment:
MD30502 $MA_INDEX_AX_DENOMINATOR[AX4] =18
results in a 20° division because the default for machine data MD30330
$MA_MODULO_RANGE
is 360°.
Rotary axis
MD30501 $MA_INDEX_AX_NUMERATOR[AX4] = 360
MD30502 $MA_INDEX_AX_DENOMINATOR[AX4] = 18
MD30503 $MA_INDEX_AX_OFFSET[AX4] = 100
MD30500 $MA_INDEX_AX_ASSIGN_POS_TAB[AX4] = 3
MD30300 $MA_IS_ROT_AX[AX4] = TRUE
MD36100 $MA_POS_LIMIT_MINUS[AX1] = 100
MD36110 $MA_POS_LIMIT_PLUS[AX1] = 260
With the machine data above, axis 4 is defined as a rotary axis and an indexing axis with
equidistant positions every 20° starting at 100°.
The following indexing positions result:
100°, 120°, 140° etc.
Positions less than 100° cannot be approached as indexing positions.
It is advisable to place the lower software limit switch in this case. The indexing positions
continue until the software limit switch is reached (in this case 260°). The rotary axis can
therefore only traverse between 100° and 260°.

Siemens SINUMERIK Series Specifications

General

Axes Control	Up to 31 axes
Category	Control Unit
Manufacturer	Siemens
Series	SINUMERIK
Control Type	CNC
Communication Interfaces	Ethernet, USB
Operating Temperature	0°C to 45°C
Protection Class	IP20
Power Supply	24V DC
Display	Color TFT LCD