Programming - Siemens SINUMERIK 840D sl Function Manual

A reference axis for G96/G961/G962 can also be assigned without the application of a
transverse axis in MD20100 via SCC[AX]. For this scenario, the constant cutting speed cannot
be activated with G96. For more detailed information, see:
References:
Programming Manual Fundamentals, Feedrate Control and Spindle Motion
"Constant cutting rate (G96/G961/G962, G97/G971/G972, G973, LIMS, SCC)
12.3

Programming

Transverse axes can be programmed 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.
Figure 12-2
Switching the diameter programming on/off
Channel-specific diameter programming
The activating or deactivating of the diameter programming is done via the modally active parts
program statements of G function group 29:
● DIAMON: Diameter programming ON
● DIAMOF: Diameter programming OFF, in other words, radius programming ON
● DIAM90: Diameter or radius programming depending on the reference mode:
– Diameter programming ON in connection with absolute dimensioning G90
– Radius programming ON in connection with incremental dimensioning G91
● DIAMCYCOF: Radius programming for G90 and G91 ON; for the HMI, the last active G
function of this group remains active
Reference is made exclusively to the transverse axis of the channel.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Transverse axis with diameter information (D1, D2)
P1: Transverse axes
12.3 Programming
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