Siemens SINUMERIK 840Di Function Manual page 894

Detailed Description
2.2 Dimensional information for transverse axes
2.2 Dimensional information for transverse axes
2.2
Transverse axes can be programed with respect to both diameter and radius. Generally,
they are diameter-related, i.e. programmed with doubled path dimension so that the
corresponding dimensional information can be transferred to the part program directly from
the technical drawings.
Fig. 2-2
Switching the diameter programming on/off
The diameter programming is switched on/off with the part program instructions:
• DIAMON: Diameter programming ON
• DIAMOF: Diameter programming OFF, in other words, radius programming ON
• DIAM90: Diameter or radius programming depending on the reference mode:
Reference is made exclusively to the transverse axis of the channel.
DIAMON, DIAMOF and DIAM90 belong to G group 29 and are modally operative.
Initial setting
The initial setting is configured with:
MD20150 $MN_GCODE_RESET_VALUES [28] (initial setting of the G groups)
Diameter-related data
After activation of the diameter programming, the following data refer to diameter
dimensions:
2-2
Transverse axis with diameter information (D1, D2)
– Diameter programming ON in connection with absolute dimensioning G90
– Radius programming ON in connection with incremental dimensioning G91
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Transverse Axes (P1)