HEIDENHAIN ND 221 B v.2 - Manual (Page 8)

8
Datum Setting
The datum setting procedure assigns a display value to a
known position. With the ND 200 series, you can set two
separate datum points.
There are several ways to set the datum:
• Enter a numerical value, or
• Transfer a value from an operating parameter
(see P79, P80).
Select datum 1 or 2.
After datum setting: assignment of measured values to positions
Without datum setting: unknown assignment of measured values
to positions
Z
?
?
?
?
?
Enter numerical value (here, 5).
5
Datum Setting
Confirm the entered numerical value.
You can switch between datums 1 and 2 as desired. Datum 2
can be used, for example, for working with incremental
dimensions.
When you switch back to datum 1, the display unit resumes
display of the encoder's actual position.