HEIDENHAIN ND 780 - Handbuch (Seite 214)

90
II Technical Information
II - 2 Installation Set
u
p
Coupling
 Press the numeric keys associated with the encoder input on the
back of the unit. Press the +, or - soft keys to couple a second input
with the first. The input numbers are displayed next to the axis label
indicating that the position is a coupled position (i.e. “2 + 3”).
Z Coupling
Turning applications only
The ND 780 Turning application provides a quick method for coupling
the Z 0 , and Z axis position on a 3 axis system. The display can be
coupled in either the Z, or Z 0 displays.
Enabling Z Coupling
To couple the Z
0
, and Z axis, and have the result displayed on the Z
0
display, press, and hold the Z
0
key approximately 2 seconds. The sum
of the Z positions will be displayed on the Z
0
display, and the Z display
will be blanked.
To couple the Z
0 , and Z axis, and have the result displayed on the Z
display, press, and hold the Z key for approximately 2 seconds. The
sum of the Z positions will be displayed on the Z display, and the Z 0
display will be blanked. The coupling is preserved in between power
cycles.
Moving either Z
0 , or Z inputs will update the coupled Z position.
When a position is coupled, the reference mark for both encoders
must be found in order to recall the previous datum.
Disabling Z Coupling
To disable Z Coupling, press the axis key of the display that is blank.
The individual Z 0 , and Z display positions will be restored.