A
08.02 Appendix
Terms
A
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition A-211
B Terms
Important terms are listed below in alphabetical order, accompanied
by explanations. Cross-references to other entries in this glossary are
indicated by the symbol ->.
A
Absolute measure
A destination for an axis movement is defined by a measure referring
to the origin of the currently active coordinate system.
See also -> incremental dimension.
Alarm
All -> messages and alarms are displayed on the control panel in
plain-text form and accompanied by date and time and the symbol for
the appropriate deletion criterion.
Archiving Exporting files and/or directories to an external storage device.
Auxiliary functions
Auxiliary functions can be used to pass -> parameters to the -> PLC in
the -> parts program, triggering reactions there which are defined by
the machine manufacturer.
Axes
The CNC axes are categorized by their functional scope as follows:
• Axes: interpolative path axes
• Auxiliary axes: non-interpolative infeed and positioning axes with
axis-specific feedrates. Auxiliary axes do not participate in
workpiece machining as such and include tool feeders, tool
magazines, etc.
Axis identifier
In compliance with DIN 66217, axes are identified as X, Y, Z for a
right-handed rectangular Cartesian -> coordinate system rotating in
the clockwise direction. Rotary axes rotating around X, Y, Z are
assigned the identifiers A, B, C. Additional axes, which are parallel to
those specified, can be identified with other letters.
B
Blank
The unmachined workpiece.
C
C axis
Axis about which the tool spindle describes a controlled rotational and
positioning movement.
CNC
-> NC
Contour
Outline of a -> workpiece
Coordinate system
See -> Machine coordinate system -> Workpiece coordinate system
(work).
Cycle
Protected subroutine for execution of a recurring machining process
on the -> workpiece.
E
Editor
The editor allows programs/text/program blocks to be created,
modified, appended, moved in blocks and inserted.
Electronic handwheel
Electronic handwheels are used to traverse the selected axes
simultaneously under manual control. The handwheel clicks are
analyzed by the increment analyzer.
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