Siemens sinumerik 840D sl Operating Manual page 477

Parameter
SC
Mach. direction of rotation Milling direction
Changing program settings
Under settings, the settings for the main and/or counterspindle can be changed while the
program is being executed.
Parameter Description
Data for You define the spindle selection for processing the data here - (this is only available if
the machine has a counterspindle)
Main spindle

Data set for the main spindle
Counterspindle

Data set for the counterspindle
Main+counterspindle

All values for the main and counterspindle are saved in one data set
Retraction Lift mode
simple

Extended

all

Empty

XRA Retraction plane X external ∅ (abs) or retraction plane X referred to XA (inc)
XRI Retraction plane X internal ∅ (abs) or retraction plane X referred to XI (inc)
- (only for retraction "extended" and "all")
ZRA Retraction plane Z front (abs) or
retraction plane Z referred to ZA (inc)
ZRI Retraction plane Z rear – (only for retraction "all")
Tailstock Yes
Tailstock is displayed for simulation / simultaneous recording

When approaching/retracting, the retraction logic is taken into account

No
XRR Retraction plane – (only "Yes" for tailstock)
Tool change point Tool change point
Work (Workpiece Coordinate System)

Machine (Machine Coordinate System)

Empty

XT Tool change point X
ZT Tool change point Z
Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Description
The safety clearance defines how close the tool can approach the workpiece in
rapid traverse.
Note
Enter the safety clearance without sign into the incremental dimension.
Conventional

Climbing

Multi-channel support
9.3 Multi-channel editor
Unit
Unit
mm
mm
mm
mm
mm
mm
mm
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