6 Assi
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Parameters to the Control and the PLC Pro
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03.96
6.9 Axes and spindles
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 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
6.9 Axes and spindles
6.9.1 Description of the axis configuration
The SINUMERIK 840D is supplied as standard with the following configuration:
S NCU 571: 1 channel and 5 axes.
S NCU 572/573: 2 channels and 8 axes with simulated setpoint or
actual value channel.
> 2 channels are provided on the SINUMERIK 840D.
Machine axes are all axes existing on the machine. They are defined as geom-
etry axes or additional axes.
The workpiece geometry is programmed with the geometry axes. The geometry
axes form a rectangular coordinate system (2D or 3D).
In contrast to geometry axes, there is no geometric relationship between special
axes such as:
– rotary axes
– turret axes
– position-controlled spindles
The axis configuration is defined on 3 levels:
1. Machine level
2. Channel level
3. Program level
MD 10000: AXCONF_MACHAX_NAME_TAB
An axis name is defined here for each machine axis in
MD 10000: AXCONF_MACHAX_NAME_TAB.
Example:
Turning machine Milling machine
with X, Z, C axis/spindle 4 axes + spindle/C axis
X1
01
Z1 C1
342
X1
01
Y1 Z1
342
A1 C1
MD 10000
Index
Number of
channels
Machine axes
Geometry axes
Special axes
Axis configuration
1. Machine level
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