HEIDENHAIN ITNC 530 User Manual

454 Programming: Special Functions
11.8 Generating a backward program
Application example
The contour CONT1.H is to be milled in several infeeds. The TNC
generates the forward file CONT1_fwd.h and the backward file
CONT1_rev.h.
NC blocks
...
5 TOOL CALL 12 Z S6000 Tool call
6 L Z+100 R0 FMAX Retract in the tool axis
7 L X-15 Y-15 R0 F MAX M3 Pre-position in the plane, spindle on
8 L Z+0 R0 F MAX Approach the starting point in the tool axis
9 LBL 1 Set a mark
10 L IZ-2.5 F1000 Infeed depth in incremental values
11 CALL PGM CONT1_FWD.H Call the forward program
12 L IZ-2.5 F1000 Infeed depth in incremental values
13 CALL PGM CONT1_REV.H Call backward program
14 CALL LBL 1 REP3 Repeat program part three times starting with block
9
15 L Z+100 R0 F MAX M2 Retract tool, end of program

HEIDENHAIN ITNC 530 Specifications

General

Control Type	CNC
Look-ahead	Yes
Spindle control	Yes
Touch probe cycles	Yes
Operating voltage	24 V DC
Programming	Conversational and DIN/ISO programming
Interpolation	Linear, Circular, Helical
Data Interface	Ethernet, USB, RS-232
Memory	1 GB
Programming Language	HEIDENHAIN plain language
Operating Modes	Manual, Automatic, MDA
Software Options	Various software options available