Siemens sinumerik 840D sl Operating Manual page 30

Introduction
1.3 Machine control panels
(6)
(7)
(8)
(9)
(10)
Figure 1-2
30
Customer keys
T1 to T15
Traversal axes with rapid traverse superposition and coordinate exchange
Axis keys
Selects an axis.
...
Direction keys
Select the traversing direction.
...
<RAPID>
Traverse axis in rapid traverse while pressing the direction key.
<WCS MCS>
Switches between the workpiece coordinate system (Work) and machine
coordinate system (Machine).
Spindle control with override switch
<SPINDLE STOP>
Stop spindle.
<SPINDLE START>
Spindle is enabled.
Feed control with override switch
<FEED STOP>
Stops execution of the running program and shuts down axis drives.
<FEED START>
Enable for program execution in the current block and enable for ramp-up to
the feedrate value specified by the program.
Keyswitch (four positions)
Front view of machine control panel (milling version)
Machine manufacturer
A machine data code defines how the increment value is
interpreted.
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Turning