Siemens Sinumerik 801 Technical Manual page 58

Built-In PLC Application
Definition of user keys
Definiton of traverse keys
Definition of override keys
3-6
Table 3-3 Definition of user keys
Key
Chuck clamping
Chuck clamping internally/externally
Chuck unclamping
Manual tool change
Manual lubrication start or stop
Manual coolant on or off
LED
Chuck clamped (LED lit)
Chuck clamped internally (LED goes out) /externally (LED lit)
Chuck unclamped (LED lit)
Tool changing (LED lit)
Lubricating (LED lit)
Cooling (LED lit)
X axis, plus direction
X axis, minus direction
Z axis, plus direction
Z axis, minus direction
RAPID TRAVERSE OVERLAY
1） Feedrate override plus key with LED
The feedrate override will be increased by a set increment when pressing
the key once until reaching 120％ ;
LED is lit when the feedrate override is more than 100%, and flashes when
it reaches 120%;
Description of User Keys
Description
SINUMERIK 801
Start-Up