Siemens SINUMERIK 840D sl Operating Manual page 34

Introduction
1.4 Operator interface
Display
Z
X
Feed data
Display
F
Rapid traverse
0.000
Override
Spindle data
Display
S
S1
Speed
Symbol
Override
Spindle utilization
rate
34
Meaning
Z value of the actual tool
X value of the actual tool
Meaning
Feed disable
Actual feed value
If several axes traverse, is displayed for:
"JOG" mode: Axis feed for the traversing axis

"MDA" and "AUTO" mode: Programmed axis feed

G0 is active
No feed is active
Display as a percentage
Meaning
Spindle selection, identification with spindle number and main spindle
Actual value (when spindle turns, display increases)
Setpoint (always displayed, also during positioning)
Spindle status
Spindle not enabled
Spindle is turning clockwise
Spindle is turning counterclockwise
Spindle is stationary
Display as a percentage
Display between 0 and 100%
The upper limit value can be greater than 100%.
See machine manufacturer's specifications.
Operating Manual, 02/2011, 6FC5398-6AP40-0BA0
Universal