Siemens SINUMERIK 840D Operator's Manual page 492

A
Appendix
B Terms
Softkey
Software limit switches
Spindles
Spline interpolation
Standard cycles
Subblock
Subroutine
Synchronization
A-492
A key whose name appears on an area of the screen. The choice of
softkeys displayed is adapted dynamically to the operating situation.
The freely assignable function keys (softkeys) are assigned to
functions defined in the software.
Software limit switches define the limits of the travel range of an axis
and prevent the slide contacting the hardware limit switches. Two
pairs of values can be assigned per axis and activated separately via
the -> PLC.
The spindle functionality is a two-level construct:
1. Spindles: Speed or position-controlled spindle drives analog
+10V (SINUMERIK FM-NC)
digital (SINUMERIK 840D)
2. Auxiliary spindles: Speed-controlled spindle drives "auxiliary
spindle" function package, e.g. for power tools.
Using the spline interpolation function, the control is able to generate
a smooth curve from just a small number of specified interpolation
points along a setpoint contour.
Standard cycles are used to program machining operations which
repeat frequently:
· For drilling/milling
· For turning (SINUMERIK FM-NC)
The available cycles are listed in menu "Cycle support" in the
"Program" operating area. Once the desired machining cycle has
been selected, the parameters required for assigning values are
displayed in plaintext.
Block prefixed by "N" containing information for a machining step such
as a position parameter.
A sequence of instructions of a -> parts program which can be called
repeatedly with different initial parameters. A subroutine is called from
within a main program. Each subroutine can be blocked against
unauthorized output. -> Cycles are a type of subroutine.
Instructions in -> parts programs for coordination of the operations in
different -> channels at specific machining points.
SINUMERIK 840D/840Di/810D Operator's Guide HMI Advanced (BAD) – 03.04 Edition
A
03.04
Ó Siemens AG, 2004. All rights reserved