Siemens SINUMERIK 840Di Function Manual page 167

2.3.4 Rounding with maximum possible dynamic response on each axis
How this type of rounding differs from existing types
Unlike existing rounding types, which are activated with G codes G641, G642 and G643, in
this case, the maximum possible dynamic response on each axis takes priority.
Activation
This type of rounding is activated by G code G644. Further information needs to be
programmed and/or entered in the machine data, depending on the setting.
Note
G644 is not available with an active kinematic transformation. The system switches internally
to G642.
Configuration
Machine data:
MD20480 SMOOTHING_MODE
is used to configure rounding with G644.
The following options are available (the values should be entered in the thousand's place of
the machine data):
Thousand's place:
0xxx:
1xxx:
2xxx:
Continuous-Path Mode, Exact Stop, LookAhead (B1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
When rounding with G644, the maximum deviations of each axis specified with
machine data:
MD33100 COMPRESS_POS_TOL
are used.
Input the maximum rounding path by programming ADIS=... or ADISPOS=... (as
for G641)
Input the maximum possible frequencies for each axis in the rounding area with
machine data:
MD32440 LOOKAH_FREQUENCY.
The rounding area is defined so that no frequencies in excess of the specified
maximum can occur while the rounding motion is in progress.
Detailed Description
2.3 Continuous-path mode
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