Siemens SINUMERIK 840D sl Function Manual page 332

Manual and Handwheel Travel (H1)
Special features of manual travel
4.10 Special features of manual travel
4.10.1 Geometry-axis manual travel
Coordinate systems in JOG
In JOG mode, the user can also traverse the axes declared as geometry axes in the
workpiece coordinate system manually. Any coordinate offsets or rotations that have been
selected remain active.
Note
With SINUMERIK 840D, the "handling transformation package" can be used in JOG mode to
set the translation of geometry axes separately in several valid reference systems.
References:
/FB3/ Function Manual Special Functions; 3- to 5-Axis Transformation (F2), Chapter:
"Cartesian manual travel"
Application
Manual movements for which transformations and frames have to be active. The geometry
axes are traversed in the most recently valid coordinate system. The special features of
geometry-axis manual travel are described below.
Simultaneous travel
Only one geometry axis can be traversed continuously or incrementally at one time using the
traversing keys. Where an attempt is made to traverse more than one geometry axis, alarm
20062 "Axis already active" is output. However, three geometry axes can be traversed
simultaneously using handwheels 1, 2 and 3. Alarm 20060 is output if only one axis is not
defined as a geometry axis.
PLC interface
A separate PLC interface
(DB21, ... DBB12 - 23 and DBB40 - 56)
exists for geometry axes, which contains the same signals as the axis-specific PLC interface.
Feedrate/rapid traverse override
The channel-specific feedrate-override switch and rapid-traverse-override switch are active
for geometry-axis manual travel in rapid traverse override.
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Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions