HEIDENHAIN iTNC 530 (340 422) ISO programming - Manual (Page 222)

222 8 Programming: Cycles
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8.1 Working with Cycles
Frequently recurring machining cycles that comprise several working
steps are stored in the TNC memory as standard cycles. Coordinate
transformations and other special cycles are also provided as standard
cycles (see table on next page).
Fixed cycles with numbers 200 and above use Q parameters as
transfer parameters. Parameters with specific functions that are
required in several cycles always have the same number: For
example, Q200 is always assigned the set-up clearance, Q202 the
plunging depth, etc.
Defining a cycle using soft keys
U U U U The soft-key row shows the available groups of
cycles.
U U U U Press the soft key for the desired group of cycles, for
example DRILLING for the drilling cycles.
U U U U Select a cycle, e.g. DRILLING. The TNC initiates the
programming dialog and asks all required input
values. At the same time a graphic of the input
parameters is displayed in the right screen window.
The parameter that is asked for in the dialog prompt
is highlighted.
U U U U Enter all parameters asked by the TNC and conclude
each entry with the ENT key.
U U U U The TNC ends the dialog when all required data has
been entered.
Example NC block
In order to avoid erroneous entries during cycle definition,
you should run a graphical program test before machining
(see “Test Run” on page 459).
N10 G200 DRILLING
Q200=2 ;SET-UP CLEARANCE
Q201=3 ;DEPTH
Q206=150 ;FEED RATE FOR PLNGNG
Q202=5 ;PLUNGING DEPTH
Q210=0 ;DWELL TIME AT TOP
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q211=0.25 ;DWELL TIME AT DEPTH