HEIDENHAIN ND 530 v.2 - Manual (Page 2)

The ND 530 display unit for lathes is designed for use with two HEIDENHAIN linear
encoders with sinusoidal output signals.
The linear encoders have one reference mark or several (preferably distance-coded)
reference marks. When a reference mark is crossed over, a signal is generated which
identifies that position as a reference point.
After switch-on, crossing over the reference marks restores the relationship between
axis slide positions and display values last established by datum setting. With encod-
ers that have distance-coded reference marks, this requires a traverse of no more
than 20 mm.
Switch-On
If you do not wish reference mark evaluation, press CL instead of ENT.
Datum Setting
The datum setting procedure assigns a specific axis position to the associated display
value. For example, you can set the workpiece face to Z = 0 mm and a shoulder on
the workpiece to its associated X coordinate.
You can set two separate datum points.
Switch on reference mark evaluation.
• The display shows the value last assigned to the reference
mark position.
• REF glows.
• The decimal point blinks.
Cross over the reference mark.
Move the axis until the display becomes active and the decimal
point stops blinking.
The display unit is now ready for operation.
5 , 6 9 7
Ent...CL
Select datum point 1 or 2.
Enter a numerical value, such as 40.
You can switch from one datum point to the other at any time.
Use datum point 2 if you want to display incremental dimensions.
4 0
Confirm your entry.
0 ➤1
Turn on the display unit (switch located on rear panel).
• Display shows .
• REF blinks.