Siemens SINUMERIK 840D sl Programming Manual page 205

Linear interpolation applies in the following cases:
• For a G-code combination with G0 that does not permit positioning axis motion (e.g. G40/
G41/G42)
• For a combination of G0 with G64
• When the compressor is active
• When a transformation is active
Example:
Program code
G0 X0 Y10
G0 G40 X20 Y20
G0 G95 X100 Z100 M3 S100
Path POS[X]=0 POS[Y]=10 is traversed in path mode. No revolutional feedrate is active if
path POS[X]=100 POS[Z]=100 is traversed.
Settable block change time with G0
For single-axis interpolation, a new end-of-motion criterion FINEA or COARSEA or IPOENDA
can be set for block change even within the braking ramp.
Consecutive axes are handled in G0 like positioning axes.
With the combination of
• "Block change settable in the braking ramp of the single axis interpolation" and
• "Traversing path axes in rapid traverse movement as positioning axes with G0"
all axes can travel to their end point independently of one another. In this way, two
sequentially programmed X and Z axes are treated like positioning axes in conjunction with
G0.
The block change to axis Z can be initiated by axis X as a function of the braking ramp time
setting (100-0%). Axis Z starts to move while axis X is still in motion. Both axes approach their
end point independently of one another.
For further information, please refer to "Feed control and spindle motion".
Fundamentals
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
9.4 Rapid traverse movement (G0, RTLION, RTLIOF)
Motion commands
205