Axis Replacement, Spindle Replacement (Release, Get, Getd) - Siemens SINUMERIK 840D sl Programming Manual
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Flexible NC programming
1.15 Axis replacement, spindle replacement (RELEASE, GET, GETD)
Caution
If tool radius compensation is activated, the codings 2, 3, 4 and the codings 6, 7, 8
should not be used
for G41 and
for G42, respectively.
In these cases, the tool would approach the contour and collide with the workpiece.
1.15
Axis replacement, spindle replacement (RELEASE, GET, GETD)
1.15
Function
One or more axes or spindles can only ever be interpolated in one channel. If an axis has to
alternate between two different channels (e.g., pallet changer) it must first be enabled in the
current channel and then transferred to the other channel. Axis replacement is effective
between channels.
Axis replacement extensions
An axis/spindle can be replaced either with a preprocessing stop and synchronization
between preprocessing and main run, or without a preprocessing stop. Axis replacement is
also possible via:
• Axis container rotation AXCTSWE or AXCTWED using implicit GET/GETD
• Frame with rotation if this process links the axis with other axes.
• Synchronized actions, see Motion-synchronous actions, "Axis replacement RELEASE,
Machine manufacturer
Please refer to the machine manufacturer's instructions. For the purpose of axis
replacement, one axis must be defined uniquely in all channels in the configurable machine
data and the axis replacement characteristics can also be set using machine data.
Programming
RELEASE (axis name, axis name, ...) or RELEASE (S1)
GET (axis name, axis name, ...) or GET (S2)
or
GETD (axis name, axis name, ...) or GETD (S3)
With GETD (GET Directly), an axis is fetched directly from another channel. That means that
no suitable RELEASE must be programmed for this GETD in another channel. It also means
that other channel communication has to be established (e.g. wait markers).
1-54
GET".
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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