HEIDENHAIN ND 1200R - Manual (Page 14)

14 1 Operation
1
.2 Basic F
unctions of the
N
D
120
0R
Establishing a repeatable machine zero
If your ND 1200R 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 ND 1200R to apply error correction data. 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.
Switching off the ND 1200R
Switch the ND 1200R off. The parameter settings,
error compensation tables and recorded programs
that have been saved during operation will be
retained in memory.
If the requirement to cross reference marks is bypassed
by pressing the CANCEL soft key, error correction data
that might be stored in your ND 1200R will not be
applied.