HEIDENHAIN ND 780 - Handbuch (Seite 203)

ND 780
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I - 4 T
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ing Specific Oper
ations
Preset Soft Key
The functionality of the PRESET soft key has been explained
previously in this manual (see “Preset Soft Key” on page 52). The
explanation and examples on those pages are based on a mill
application. The basics of those explanations are the same for turning
applications with two exceptions; Tool Diameter Offsets (R+/-), and
Radius vs. Diameter inputs.
Tool diameter offsets have no applications with turning tools, so this
functionality is not available while doing turning presets.
While doing turning, input values can be either radius or diameter
values. It is important to be sure the units you are entering for the
preset agree with the state that the display is currently using. A
diameter value is shown with a Ø symbol. The state of the display can
be changed using the RX soft key (see below).
RX (Radius/Diameter) Soft Key
Drawings for lathe parts usually give diameter values. ND 780 can
display either the radius or the diameter for you. When the diameter is
being displayed, the diameter symbol (Ø) is shown next to the position
value.
Example:
Radius display, position 1 X = 20 mm
Diameter display, position 1 X = Ø 40 mm
Press the RX soft key to switch between radius
display and diameter display.