Siemens Sinumerik 840D Operating Turning page 162

Section 4
Machine control panel
Notes
SINGLE BLOCK
Runs a program block-by-block (single block).
REPOS
Repositions and reapproaches a contour.
REF.Point
Approaches a reference point.
VAR (incremental feed variable)
Traverse through an incremental dimension with
variable step lengths.
Inc (incremental feed)
Traverse through an incremental dimension with a
given step size of 1, ..., 10000 increments.
The actual length of an incremental step depends on
a machine datum.
Note:
Heed the machine manufacturer's documentation.
CYCLE START
Starts a program run.
CYCLE STOP
Stopps a program run.
Axis keys
Axis selection.
..........
Direction keys
For traversing an axis either in the positive or nega-
tive direction.
RAPID
For traversing an axis at rapid traverse rate (fastest
speed).
WCS MCS
Toggling between the work piece coordinate system
(WCS) and the machine coordinate system (MCS).
B516
B516
Page 10 840D/828D SINUMERIK Operate