Machine-specific cycles, 1 w o rk ing with fix e d cy cles – HEIDENHAIN 530 (340 49x-07) Cycle programming User Manual
Page 51

HEIDENHAIN iTNC 530
51
2.1 W
o
rk
ing with Fix
e
d Cy
cles
Machine-specific cycles
In addition to the HEIDENHAIN cycles, many machine tool builders 
offer their own cycles in the TNC. These cycles are available in a 
separate cycle-number range:
Cycles 300 to 399
Machine-specific cycles that are to be defined through the CYCLE 
DEF key
Cycles 500 to 599
Machine-specific touch probe cycles that are to be defined through 
the TOUCH PROBE key
Sometimes, machine-specific cycles also use transfer parameters, 
which HEIDENHAIN already used in the standard cycles. The TNC 
executes DEF-active cycles as soon as they are defined (see also 
”Calling cycles” on page 53). It executes CALL-active cycles only after 
they have been called (see also ”Calling cycles” on page 53). When 
DEF-active cycles and CALL-active cycles are used simultaneously, it 
is important to prevent overwriting of transfer parameters already in 
use. Use the following procedure:
U
As a rule, always program DEF-active cycles before CALL-active 
cycles
U
If you do want to program a DEF-active cycle between the definition 
and call of a CALL-active cycle, do it only if there is no common use 
of specific transfer parameters
Refer to your machine manual for a description of the 
specific function.
