HEIDENHAIN ND 100 User Manual - Manual (Page 20)

20 1 Operation
1
.2 Basic F
unctions
Establishing a repeatable machine zero
If your DRO was configured to establish a machine zero upon power-
up, a message will be displayed asking you to cross reference marks
or enter hard-stop axis reference positions. The machine zero is used
by the DRO to apply error correction data as measurements are
performed. To establish a repeatable machine zero you must either:
 Move the stage to have encoder reference mark crossings
recognized on each axis or
 move the stage to the hard-stop reference position and press ENTER
on each axis when no encoder reference marks are present.
Power-off
Switch the power off. The parameter settings and
error compensation tables that have been saved
during operation will be retained in memory.
Notice
If the requirement to cross reference marks is bypassed
by pressing the Cancel soft key, error correction data that
might be stored in your DRO will not be applied.