HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 57)

HEIDENHAIN iTNC 530 57
2.1
W
or
king
with
fix
ed
cy
cles
Working with the secondary axes U/V/W
The TNC performs infeed movements in the axis that was defined in
the TOOL CALL block as the spindle axis. It performs movements in
the working plane only in the principal axes X, Y or Z. Exceptions:
 You program secondary axes for the side lengths in Cycles 3 SLOT
MILLING and 4 POCKET MILLING.
 You program secondary axes in the first block of the contour
geometry subprogram of an SL cycle
 In Cycles 5 (CIRCULAR POCKET), 251 (RECTANGULAR POCKET),
252 (CIRCULAR POCKET), 253 (SLOT) and 254 (CIRCULAR SLOT),
the TNC machines the cycle in the axes that you programmed in the
last positioning block before the cycle call. When tool axis Z is active,
the following combinations are permissible:
 X/Y
 X/V
 U/Y
 U/V