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Machine operating area 01/2008
4.2 General functions and displays
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© Siemens AG 2008 All rights reserved.
4-98 SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
4.2.4 Displaying several transverse axes
Function
Most lathes use one transverse axis in the channel. Special lathes
with several transverse axes in the channel are also supported.
Dimensions can be entered and displayed for the diameter
simultaneously for known transverse axes in the channel.
Rotary axes are not permitted to serve as transverse axes.
The transverse axes are displayed in three statuses:
• Axis with constant cutting velocity (G96/G961/G962) where the
radius is displayed.
• Axis with constant cutting velocity and where the diameter actual
value is displayed.
• Axis where the actual diameter is displayed. Is displayed if the
values DIAMON or DIAM90 are active in group G29.
One transverse axis
Constant cutting velocity (G96/G961/G962) is only possible for a
transverse axis as geometry axis. When using a transverse axis in the
channel – defined using the channel machine data MD 20100:
DIAMETER_AX_DEF – there are no changs regarding programming
and setting of the machine data.
Several transverse axes
The axis machine data MD 30460: BASE_FUNCTION_MASK bit 2
allows the definition of additional transverse axes, for which axis-
specific diameter programming.
MD 30460:
Bit2 = 0
Bit2 = 1
Axis-specific diameter programming not permitted.
Axis-specific diameter programming permitted.
This setting is only permitted for linear axes (neither rotary
axes nor spindles).
An axis can be simultaneously defined in MD 20100 and in MD 30460
bit2.
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