Toggle display between machining and
programming modes
Soft keys for selecting functions on
screen
Shift between soft-key rows
Alphanumeric keyboard
KeyFunction
File names, comments
DIN/ISO programming
Machine operating modes
KeyFunction
Manual Operation
Electronic Handwheel
Program/file management, TNC functions
KeyFunction
Select or delete programs and files,
external data transfer
Define program call, select datum and
point tables
Select MOD functions
Display help text for NC error messages,
call TNCguide
Display all current error messages
Show pocket calculator
Navigation keys
KeyFunction
Move highlight
Go directly to blocks, cycles and
parameter functions
Potentiometer for feed rate and spindle speed
Feed rateSpindle speed
smarT.NC
Positioning with Manual Data Input
Program Run, Single Block
Program Run, Full Sequence
Programming modes
KeyFunction
Programming and Editing
Test Run
100
0
1
S %
50
50
100
0
1
F %
50
50
Cycles, subprograms and program section repeats
KeyFunction
Define touch probe cycles
Define and call cycles
Enter and call labels for subprogramming
and program section repeats
Program stop in a program
Page 3
Tool functions
KeyFunction
Define tool data in the program
Coordinate axes and numbers: Entering and editing
KeyFunction
. . .
Select coordinate axes or
enter them into the program
Call tool data
Programming path movements
KeyFunction
Approach/depart contour
FK free contour programming
Straight line
Circle center/pole for polar coordinates
Circle with center
Circle with radius
Circular arc with tangential connection
Chamfering/Corner rounding
. . .
Numbers
Decimal point / Reverse algebraic sign
Polar coordinate input / Incremental
values
Q parameter programming /
Q parameter status
Save actual position or values from
calculator
Skip dialog questions, delete words
Confirm entry and resume dialog
Conclude block and exit entry
Clear numerical entry or TNC error
message
Abort dialog, delete program section
Special functions / smarT.NC
KeyFunction
Show special functions
smarT.NC: Select next tab on form
smarT.NC: Select first input field in
previous/next frame
Page 4
Page 5
About this Manual
The symbols used in this manual are described below.
This symbol indicates that important notes about the
function described must be adhered to.
This symbol indicates that using the function described
runs one or more than one of the following risks:
Danger to workpiece
Danger to fixtures
Danger to tool
Danger to machine
Danger to operator
This symbol indicates that the described function must be
adapted by the machine tool builder. The function
described may therefore vary depending on the machine.
This symbol indicates that you can find detailed
information about a function in another manual.
About this Manual
Do you desire any changes, or have you found
any errors?
We are continuously striving to improve documentation for you.
Please help us by sending your requests to the following e-mail
address: tnc-userdoc@heidenhain.de.
HEIDENHAIN iTNC 5305
Page 6
TNC Model, Software and Features
This manual describes functions and features provided by TNCs as of
the following NC software numbers.
TNC modelNC software number
iTNC 530340 490-05
iTNC 530 E340 491-05
iTNC 530340 492-05
iTNC 530 E340 493-05
iTNC 530 programming station340 494-05
The suffix E indicates the export version of the TNC. The export
version of the TNC has the following limitations:
Simultaneous linear movement in up to 4 axes
The machine tool builder adapts the usable features of the TNC to his
machine by setting machine parameters. Some of the functions
described in this manual may therefore not be among the features
provided by the TNC on your machine tool.
TNC Model, Software and Features
TNC functions that may not be available on your machine include:
Tool measurement with the TT
Please contact your machine tool builder to become familiar with the
features of your machine.
Many machine manufacturers, as well as HEIDENHAIN, offer
programming courses for the TNCs. We recommend these courses as
an effective way of improving your programming skill and sharing
information and ideas with other TNC users.
User’s Manual for Cycles:
All of the cycle functions (touch probe cycles and fixed
cycles) are described in a separate manual. Please contact
HEIDENHAIN if you require a copy of this User’s Manual.
ID: 670 388-xx
smarT.NC user documentation:
The smarT.NC operating mode is described in a separate
Pilot. Please contact HEIDENHAIN if you require a copy of
this Pilot. ID: 533 191-xx
6
Page 7
Software options
The iTNC 530 features various software options that can be enabled
by you or your machine tool builder. Each option is to be enabled
separately and contains the following respective functions:
Software option 1
Cylinder surface interpolation (Cycles 27, 28, 29 and 39)
Feed rate in mm/min for rotary axes: M116
Tilting the machining plane (Cycle 19, PLANE function and 3-D ROT
soft key in the Manual Operation mode)
Circle in 3 axes with tilted working plane
Software option 2
Block processing time 0.5 ms instead of 3.6 ms
5-axis interpolation
Spline interpolation
3-D machining:
M114: Automatic compensation of machine geometry when
working with swivel axes
M128: Maintaining the position of the tool tip when positioning
with swivel axes (TCPM)
FUNCTION TCPM: Maintaining the position of the tool tip when
positioning with swivel axes (TCPM) in selectable modes
M144: Compensating the machine’s kinematics configuration for
ACTUAL/NOMINAL positions at end of block
Additional parameters for finishing/roughing and tolerance for
rotary axes in Cycle 32 (G62)
LN blocks (3-D compensation)
TNC Model, Software and Features
DCM Collision software optionDescription
Function that monitors areas defined by the
machine manufacturer to prevent collisions.
DXF Converter software optionDescription
Extract contours and machining positions from
DXF files (R12 format).
HEIDENHAIN iTNC 5307
Page 365
Page 240
Page 8
Additional dialog language software
option
Function for enabling the conversational
languages Slovenian, Slovak, Norwegian,
Latvian, Estonian, Korean, Turkish, Romanian,
Lithuanian
Global Program Settings software optionDescription
Function for superimposing coordinate
transformations in the Program Run modes,
handwheel superimposed traverse in virtual
axis direction.
AFC software optionDescription
Function for adaptive feed-rate control for
optimizing the machining conditions during
series production.
KinematicsOpt software optionDescription
Touch-probe cycles for inspecting and
optimizing the machine accuracy.
TNC Model, Software and Features
Description
Page 620
Page 380
Page 391
User’s Manual for
Cycles
8
Page 9
Feature content level (upgrade functions)
Along with software options, significant further improvements of the
TNC software are managed via the Feature Content Level (FCL)
upgrade functions. Functions subject to the FCL are not available
simply by updating the software on your TNC.
All upgrade functions are available to you without surcharge
when you receive a new machine.
Upgrade functions are identified in the manual with FCL n, where n
indicates the sequential number of the feature content level.
You can purchase a code number in order to permanently enable the
FCL functions. For more information, contact your machine tool
builder or HEIDENHAIN.
FCL 4 functionsDescription
Graphical depiction of the protected
space when DCM collision monitoring is
active
Page 370
Handwheel superimposition in stopped
condition when DCM collision
monitoring is active
Touch probe cycle for 3-D probingUser’s Manual for Cycles
Touch probe cycles for automatic datum
setting using the center of a slot/ridge
Feed-rate reduction for the machining of
contour pockets with the tool being in full
contact with the workpiece
PLANE function: Entry of axis anglePage 442
User documentation as a contextsensitive help system
smarT.NC: Programming of smarT.NC
and machining can be carried out
simultaneously
smarT.NC: Contour pocket on point
pattern
smarT.NC: Preview of contour programs
in the file manager
Page 369
User’s Manual for Cycles
User’s Manual for Cycles
Page 150
Page 118
smarT.NC Pilot
smarT.NC Pilot
TNC Model, Software and Features
smarT.NC: Positioning strategy for
machining point patterns
HEIDENHAIN iTNC 5309
smarT.NC Pilot
Page 10
FCL 2 functionsDescription
3-D line graphicsPage 142
Virtual tool axisPage 541
USB support of block devices (memory
sticks, hard disks, CD-ROM drives)
Filtering of externally created contoursPage 405
Possibility of assigning different depths
to each subcontour in the contour
formula
DHCP dynamic IP-address management Page 598
Touch-probe cycle for global setting of
touch-probe parameters
smarT.NC: Graphic support of block scan smarT.NC Pilot
smarT.NC: Coordinate transformationsmarT.NC Pilot
smarT.NC: PLANE functionsmarT.NC Pilot
Intended place of operation
TNC Model, Software and Features
The TNC complies with the limits for a Class A device in accordance
with the specifications in EN 55022, and is intended for use primarily
in industrially-zoned areas.
Page 128
User’s Manual for
Cycles
User’s Manual for Touch
Probe Cycles
Legal information
This product uses open source software. Further information is
available on the control under
U Programming and Editing operating mode
U MOD function
U LEGAL INFORMATION soft key
10
Page 11
New functions in 340 49x-01 since
the predecessor versions
340 422-xx/340 423-xx
A new form-based operating mode, smarT.NC, has been
introduced. These cycles are described in a separate user's
document. In connection with this the TNC operating panel was
enhanced. There are some new keys available for quicker navigation
within smarT.NC
The single-processor version supports pointing devices (mice) via
the USB interface.
The tooth feed f
alternate feed entries (see “Possible feed rate input” on page 103).
New cycle CENTERING (see User’s Manual for Cycles)
New M function M150 for suppressing limit switch messages (see
“Suppress limit switch message: M150” on page 358)
M128 is now also permitted for mid-program startup (see “Mid-
program startup (block scan)” on page 572)
The number of available Q parameters was expanded to 2000 (see
“Principle and Overview” on page 274).
The number of available label numbers was expanded to 1000. Now
label names can be assigned as well (see “Labeling Subprograms
and Program Section Repeats” on page 258).
In the Q parameter functions FN9 to FN12 you can now also assign
label names as jump targets (see “If-Then Decisions with
Q Parameters” on page 284).
Selectively machine points from a point table (see User's Manual for
Cycles)
The current time is also shown in the additional status display
window (see “General program information (PGM tab)” on page
83).
Several columns were added to the tool table (see “Tool table:
Standard tool data” on page 162).
The Test Run can now also be stopped and resumed within
machining cycles (see “Running a program test” on page 563).
and feed per revolution fu can now be defined as
z
340 422-xx/340 423-xx
HEIDENHAIN iTNC 53011
New functions in 340 49x-01 since the predecessor versions
Page 12
New functions with 340 49x-02
DXF files can be opened directly on the TNC, in order to extract
contours into a plain-language program (see “Processing DXF Files
(Software Option)” on page 240)
3-D line graphics are now available in the Programming and Editing
operating mode (see “3-D Line Graphics (FCL2 Function)” on page
142)
The active tool-axis direction can now be set as the active machining
direction for manual operation (see “Setting the current tool-axis
direction as the active machining direction (FCL 2 function)” on page
541)
The machine manufacturer can now define any areas on the
machine for collision monitoring (see “Dynamic Collision Monitoring
(Software Option)” on page 365)
Instead of the spindle speed S you can now define the cutting speed
Vc in m/min (see “Calling tool data” on page 173)
The TNC can now display freely definable tables in the familiar table
view or as forms (see “Switching between table and form view” on
page 422)
The function for converting FK programs to H was expanded.
New functions with 340 49x-02
Programs can now also be output in linearized format (see
“Converting FK programs into HEIDENHAIN conversational format”
on page 224)
You can filter contours that were created using external
programming systems (see “Filtering Contours (FCL 2 Function)”
on page 405)
For contours which you connect via the contour formula, you can
now assign separate machining depths for each subcontour (see
User's Manual for Cycles)
The single-processor version now supports not only pointing
devices (mice), but also USB block devices (memory sticks, disk
drives, hard disks, CD-ROM drives) (see “USB devices on the TNC
(FCL 2 function)” on page 134)
12
Page 13
New functions with 340 49x-03
The Adaptive Feed Control function (AFC) was introduced (see
“Adaptive Feed Control Software Option (AFC)” on page 391)
The global parameter settings function makes it possible to set
various transformations and settings in the program run modes (see
“Global Program Settings (Software Option)” on page 380).
The TNC now features a context-sensitive help system, the
TNCguide (see “The Context-Sensitive Help System TNCguide
(FCL3 Function)” on page 150).
Now you can extract point files from DXF files(see “Selecting and
storing machining positions” on page 250).
Now, in the DXF converter, you can divide or lengthen laterally
joined contour elements (see “Dividing, extending and shortening
contour elements” on page 249).
In the PLANE function the working plane can now also be defined
directly by its axis angle (see “Tilting the working plane through axis
angle: PLANE AXIAL (FCL 3 function)” on page 442).
In Cycle 22 ROUGH-OUT, you can define a feed-rate reduction if the
tool is cutting on its entire circumference (FCL3 function, see User's
Manual for Cycles)
In Cycle 208 BORE MILLING, you can now choose between climb or
up-cut milling (see User's Manual for Cycles)
String processing has been introduced in Q parameter programming
(see “String Parameters” on page 312)
A screen saver can be activated through machine parameter 7392
(see “General User Parameters” on page 620)
The TNC now also supports a network connection over the NFS V3
protocol (see “Ethernet Interface” on page 591)
The maximum manageable number of tools in a pocket table was
increased to 9999 (see “Pocket table for tool changer” on page 170)
Parallel programming is possible with smarT.NC (see “Select
smarT.NC programs” on page 118)
The system time can now be set through the MOD function (see
“Setting the System Time” on page 615)
New functions with 340 49x-03
HEIDENHAIN iTNC 53013
Page 14
New functions with 340 49x-04
The global parameter settings function makes it possible to activate
handwheel superimposed traverse in the active tool axis direction
(virtual axis) (see “Virtual axis VT” on page 390)
Machining patterns can now easily be defined with PATTERN DEF
(see User's Manual for Cycles)
Program defaults valid globally can now be defined for machining
cycles (see User's Manual for Cycles)
Now, in Cycle 209 TAPPING WITH CHIP BREAKING, you can define a
factor for the retraction shaft speed, so that you can depart the hole
faster (see User's Manual for Cycles)
In Cycle 22 ROUGH-OUT, you can now define the fine-roughing
strategy (see User's Manual for Cycles)
In the new Cycle 270 CONTOUR TRAIN DATA, you can define the type
of approach of Cycle 25 CONTOUR TRAIN (see User's Manual for
Cycles)
New Q-parameter function for reading a system datum was
introduced (see “Copying system data to a string parameter,” page
317)
New functions with 340 49x-04
New functions for copying, moving and deleting files from within
the NC program were introduced (see “File Functions,” page 406)
DCM: Collision objects can now be shown three-dimensionally
during machining (see “Graphic depiction of the protected space
(FCL4 function),” page 370)
DXF converter: New settings possibility introduced, with which the
TNC automatically selects the circle center when loading points
from circular elements (see “Basic settings,” page 242)
DXF converter: Element information is shown in an additional info
window (see “Selecting and saving a contour,” page 247)
AFC: A line diagram is now shown in the additional AFC status
display (see “Adaptive Feed Control (AFC tab, software option)” on
page 89)
AFC: Control settings parameters selectable by machine tool builder
(see “Adaptive Feed Control Software Option (AFC)” on page 391)
AFC: The spindle reference load currently being taught is shown in
a pop-up window in the teach-in mode. In addition, the learning
phase can be restarted at any time via soft key (see “Recording a
teach-in cut” on page 395).
AFC: The dependent file <name>.H.AFC.DEP can now also be
modified in the Programming and Editing operating mode (see
“Recording a teach-in cut” on page 395)
14
Page 15
The maximum path permitted for LIFTOFF was increased to 30 mm
(see “Automatically retract tool from the contour at an NC stop:
M148” on page 357)
File management was adapted to the file management of smarT.NC
(see “Overview: Functions of the file manager” on page 114)
New function for generating service files was introduced (see
“Generating service files” on page 149)
A window manager was introduced (see “Window Manager” on
page 90)
The new dialog languages Turkish and Romanian were introduced
(software option, Page 620)
New functions with 340 49x-04
HEIDENHAIN iTNC 53015
Page 16
New functions with 340 49x-05
DCM: Integrated fixture management (see “Fixture Monitoring
(Software Option)” on page 372)
DCM: No collision checking in the Test Run mode(see “Collision
monitoring in the Test Run mode of operation” on page 371)
DCM: Management of tool-carrier kinematics has been simplified
(see “Tool-carrier kinematics” on page 168)
Processing DXF data: Fast point selection via mouse area (see
“Quick selection of hole positions in an area defined by the mouse”
on page 252)
Processing DXF data: Fast point selection via diameter input (see
“Quick selection of hole positions in an area defined by the mouse”
on page 252)
DXF data processing: Polyline support was integrated (see
“Processing DXF Files (Software Option)” on page 240)
AFC: Smallest occurring feed rate will now also be saved in the log
file (see “Log file” on page 399)
AFC: Monitoring for tool breakage/tool wear (see “Tool
breakage/tool wear monitoring” on page 401)
New functions with 340 49x-05
AFC: Direct monitoring of spindle load (see “Spindle load
monitoring” on page 401)
Global program settings: Function also partially effective with
M91/M92 blocks (see “Global Program Settings (Software Option)”
on page 380)
Pallet preset table added (see “Pallet datum management with the
pallet preset table,” page 477 or see “Application,” page 474 or see
“Storing measured values in the pallet preset table,” page 521 or
see “Saving the basic rotation in the preset table,” page 526)
The additional status display now has an additional tab, i.e. PAL, on
which an active pallet preset is displayed (see “General pallet
information (PAL tab)” on page 84)
New tool management (see “Tool management” on page 179)
New column R2TOL in the tool table (see “Tool table: Tool data
required for automatic tool measurement” on page 164)
Tools can now also be selected during tool call by soft key directly
from TOOL.T (see “Calling tool data” on page 173)
TNCguide: Context sensitivity has been improved in that when the
cursor is engaged it jumps to the appropriate description (see
“Calling the TNCguide” on page 151)
Lithuanian dialog added, machine parameter 7230 (see “List of
general user parameters” on page 621)
M116 allowed in combination with M128 (see “Feed rate in
mm/min on rotary axes A, B, C: M116 (software option 1)” on page
455)
Introduction of local and nonvolatile Q parameters QL and QR (see
“Principle and Overview” on page 274)
The MOD function can now test the data medium (see “Checking
the Data Carrier” on page 614)
New Cycle 241 for Single-Fluted Deep-Hole Drilling (see User’s
Manual for Cycles)
16
Page 17
Touch probe cycle 404 (SET BASIC ROTATION) was expanded by
parameter Q305 (Number in table) in order to write basic rotations
to the preset table (see User's Manual for Cycles)
Touch probe cycles 408 to 419: The TNC now also writes to line 0
of the preset table when the display value is set (see User's Manual
for Cycles)
Touch probe cycle 416 (Datum on Circle Center) was expanded by
parameter Q320 (safety clearance) (see User's Manual for Cycles)
Q365 (type of traverse) (see User's Manual for Cycles)
Touch probe cycle 425 (Measure Slot) was expanded by parameters
Q301 (Move to clearance height) and Q320 (setup clearance) (see
User's Manual for Cycles)
Touch probe cycle 450 (Save Kinematics) was expanded by input
option 2 (Display saving status) in parameter Q410 (mode) (see
User's Manual for Cycles)
Touch probe cycle 451 (Measure Kinematics) was expanded by
parameters Q423 (number of circular measurements) and Q432 (set
preset) (see User's Manual for Cycles)
New touch probe cycle 452 (Preset Compensation) simplifies the
measurement of tool changer heads (see User's Manual for Cycles)
New touch probe cycle 484 for calibrating the wireless TT 449 tool
touch probe (see User's Manual for Cycles)
New functions with 340 49x-05
HEIDENHAIN iTNC 53017
Page 18
Changed functions in 340 49x-01
since the predecessor versions
340 422-xx/340 423-xx
The layouts of the status display and additional status display were
redesigned (see “Status Displays” on page 81)
Software 340 490 no longer supports the small resolution in
combination with the BC 120 screen (see “Visual display unit” on
page 75)
New key layout of the TE 530 B keyboard unit (see “Operating
panel” on page 77)
The entry range for the EULPR precession angle in the PLANE EULER
function was expanded (see “Defining the machining plane with
340 422-xx/340 423-xx
Euler angles: EULER PLANE” on page 435)
The plane vector in the VECTOR PLANE function no longer has to be
entered in standardized form (see “Defining the machining plane
with two vectors: VECTOR PLANE” on page 437)
Positioning behavior of the CYCL CALL PAT function has been
modified (see User's Manual for Cycles)
The tool types available for selection in the tool table were increased
in preparation for future functions
Instead of the last 10, you can now choose from the last 15 selected
files (see “Choosing one of the last files selected” on page 123)
Changed functions in 340 49x-01 since the predecessor versions
18
Page 19
Functions changed in 340 49x-02
Access to the preset table was simplified. There are also new
possibilities for entering values in the preset table. See table
“Manually saving the datums in the preset table”
In inch-programs, the function M136 (feed rate in 0.1 inch/rev) can
no longer be combined with the FU function
The feed-rate potentiometers of the HR 420 are no longer switched
over automatically when the handwheel is selected. The selection is
made via soft key on the handwheel. In addition, the pop-up window
for the active handwheel was made smaller, in order to improve the
view of the display beneath it (see “Potentiometer settings” on
page 503)
The maximum number of contour elements for SL cycles was
increased to 8192, so that much more complex contours can be
machined (see User's Manual for Cycles)
FN16: F-PRINT: The maximum number of Q-parameter values that
can be output per line in the format description file was increased to
32 (see “FN 16: F-PRINT: Formatted output of text and Q parameter
values” on page 294)
The soft keys START and START SINGLE BLOCK in the Program
Test mode of operation were switched, so that the soft-key
alignment is the same in all modes of operation (Programming and
Editing, smarT.NC, Test) (see “Running a program test” on page
563)
The design of the soft keys was revised completely
Functions changed in 340 49x-02
HEIDENHAIN iTNC 53019
Page 20
Changed functions with 340 49x-03
In Cycle 22 you can now define a tool name also for the coarse
roughing tool (see User's Manual Cycles)
In the PLANE function, an FMAX can now be programmed for the
automatic rotary positioning (see “Automatic positioning:
MOVE/TURN/STAY (entry is mandatory)” on page 444)
When running programs in which non-controlled axes are
programmed, the TNC now interrupts the program run and displays
a menu for returning to the programmed position (see
“Programming of noncontrolled axes (counter axes)” on page 569)
The tool usage file now also includes the total machining time,
which serves as the basis for the progress display in percent in the
Program Run, Full Sequence mode (see “Tool usage test” on page
576)
The TNC now also takes the dwell time into account when
calculating the machining time in the Test Run mode (see
“Measuring the machining time” on page 559)
Arcs that are not programmed in the active working plane can now
also be run as spatial arcs (see “Circular path C around circle center
CC” on page 205)
The EDIT OFF/ON soft key on the pocket table can be deactivated
by the machine tool builder (see “Pocket table for tool changer” on
page 170)
Changed functions with 340 49x-03
The additional status display has been revised. The following
improvements have been introduced (see “Additional status
displays” on page 82):
A new overview page with the most important status displays
were introduced
The individual status pages are now displayed as tabs (as in
smarT.NC). The individual tabs can be selected with the Page soft
keys or with the mouse
The current run time of the program is shown in percent by a
progress bar
The tolerance values set in Cycle 32 are displayed
Active global program settings are displayed, provided that this
software option was enabled
The status of the Adaptive Feed Control (AFC) is displayed,
provided that this software option was enabled
20
Page 21
Changed functions with 340 49x-04
DCM: Retraction after collision simplified (see “Collision monitoring
in the manual operating modes,” page 367)
The input range for polar angles was increased (see “Circular path
CP around pole CC” on page 215)
The value range for Q-parameter assignment was increased (see
“Programming notes,” page 276)
The pocket-, stud- and slot-milling cycles 210 to 214 were removed
from the standard soft-key row (CYCL DEF >
POCKETS/STUDS/SLOTS). For reasons of compatibility, the cycles
will still be available, and can be selected via the GOTO key
The soft-key rows in the Test Run operating mode were modified to
those of the smarT.NC operating mode
Windows XP is now used on the dual-processor version (see
“Introduction” on page 648)
Conversion from FK to H was moved to the special functions (SPEC
FCT) (see “Converting FK programs into HEIDENHAIN
conversational format” on page 224)
Filtering of contours was moved to the special functions (SPEC FCT)
(see “Filtering Contours (FCL 2 Function)” on page 405)
Loading of values from the pocket calculator was changed (see “To
transfer the calculated value into the program” on page 139)
Changed functions with 340 49x-04
HEIDENHAIN iTNC 53021
Page 22
Changed functions with 340 49x-05
GS global program settings: Form was redesigned (see “Global
Program Settings (Software Option),” page 380)
The menu for network configuration was revised (see “Configuring
the TNC” on page 594)
Changed functions with 340 49x-05
22
Page 23
Table of Contents
First Steps with the iTNC 530
1
Introduction
Programming: Fundamentals, File
Management
Programming: Programming Aids
Programming: Tools
Programming: Programming Contours
Programming: Miscellaneous Functions
Programming: Data Transfer from DXF
Files
Programming: Subprograms and
Program Section Repeats
Programming: Q Parameters
Programming: Miscellaneous Functions
Programming: Special Functions
Programming: Multi-axis Machining
2
3
4
5
6
7
8
9
10
11
12
13
Programming: Pallet Management
Positioning with Manual Data Input
Test Run and Program Run
MOD Functions
Tables and Overviews
iTNC 530 with Windows XP (option)
HEIDENHAIN iTNC 53023
14
15
16
17
18
19
Page 24
Page 25
1 First Steps with the iTNC 530 ..... 51
1.1 Overview ..... 52
1.2 Machine Switch-On ..... 53
Acknowledge the power interruption and move to the reference points ..... 53
1.3 Programming the First Part ..... 54
Select the correct operating mode ..... 54
The most important TNC keys ..... 54
Create a new program/file management ..... 55
Define a workpiece blank ..... 56
Program layout ..... 57
Program a simple contour ..... 58
Create a cycle program ..... 61
1.4 Graphically Testing the Program ..... 64
Select the correct operating mode ..... 64
Select the tool table for the test run ..... 64
Choose the program you want to test ..... 65
Select the screen layout and the view ..... 65
Start the program test ..... 66
1.5 Setting Up Tools ..... 67
Select the correct operating mode ..... 67
Prepare and measure tools ..... 67
The tool table TOOL.T ..... 67
The pocket table TOOL_P.TCH ..... 68
1.6 Workpiece Setup ..... 69
Select the correct operating mode ..... 69
Clamp the workpiece ..... 69
Align the workpiece with a 3-D touch probe system ..... 70
Set the datum with a 3-D touch probe ..... 71
1.7 Running the First Program ..... 72
Select the correct operating mode ..... 72
Choose the program you want to run ..... 72
Start the program ..... 72
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2 Introduction ..... 73
2.1 The iTNC 530 ..... 74
Programming: HEIDENHAIN conversational, smarT.NC and DIN/ISO formats ..... 74
Compatibility ..... 74
2.2 Visual Display Unit and Keyboard ..... 75
Visual display unit ..... 75
Sets the screen layout ..... 76
Operating panel ..... 77
2.3 Operating Modes ..... 78
Manual Operation and Electronic Handwheel ..... 78
Positioning with Manual Data Input ..... 78
Programming and Editing ..... 79
Test Run ..... 79
Program Run, Full Sequence and Program Run, Single Block ..... 80
Pallet datum management with the pallet preset table ..... 477
Executing the pallet file ..... 479
13.2 Pallet Operation with Tool-Oriented Machining ..... 480
Application ..... 480
Selecting a pallet file ..... 485
Setting up the pallet file with the entry form ..... 485
Sequence of tool-oriented machining ..... 490
Leaving the pallet file ..... 491
Executing the pallet file ..... 491
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14 Manual Operation and Setup ..... 493
14.1 Switch-On, Switch-Off ..... 494
Switch-on ..... 494
Switch-off ..... 497
14.2 Moving the Machine Axes ..... 498
Note ..... 498
To traverse with the machine axis direction buttons: ..... 498
Incremental jog positioning ..... 499
Traversing with the HR 410 electronic handwheel ..... 500
HR 420 electronic handwheel ..... 501
14.3 Spindle Speed S, Feed Rate F and Miscellaneous Functions M ..... 506
Function ..... 506
Entering values ..... 506
Changing the spindle speed and feed rate ..... 507
14.4 Datum Setting without a 3-D Touch Probe ..... 508
Note ..... 508
Preparation ..... 508
Workpiece presetting with axis keys ..... 509
Datum management with the preset table ..... 510
14.5 Using the 3-D Touch Probe ..... 517
Overview ..... 517
Selecting probe cycles ..... 517
Recording measured values from the touch probe cycles ..... 518
Writing the measured values from touch probe cycles in datum tables ..... 519
Writing the measured values from touch probe cycles in the preset table ..... 520
Storing measured values in the pallet preset table ..... 521
14.6 Calibrating a 3-D Touch Probe ..... 522
Introduction ..... 522
Calibrating the effective length ..... 522
Calibrating the effective radius and compensating center misalignment ..... 523
Displaying calibration values ..... 524
Managing more than one block of calibrating data ..... 524
14.7 Compensating Workpiece Misalignment with a 3-D Touch Probe ..... 525
Introduction ..... 525
Measuring the basic rotation ..... 525
Saving the basic rotation in the preset table ..... 526
Saving the basic rotation in the pallet preset table ..... 526
Displaying a basic rotation ..... 526
Canceling a basic rotation ..... 526
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14.8 Datum Setting with a 3-D Touch Probe ..... 527
Overview ..... 527
Datum setting in any axis ..... 527
Corner as datum—using points that were already probed for a basic rotation ..... 528
Corner as datum—without using points that were already probed for a basic rotation ..... 528
Circle center as datum ..... 529
Center line as datum ..... 530
Setting datum points using holes/cylindrical studs ..... 531
Measuring Workpieces with a 3-D Touch Probe ..... 532
Using the touch probe functions with mechanical probes or dial gauges ..... 535
14.9 Tilting the Working Plane (Software Option 1) ..... 536
Application, function ..... 536
Traversing the reference points in tilted axes ..... 538
Setting the datum in a tilted coordinate system ..... 538
Datum setting on machines with rotary tables ..... 538
Datum setting on machines with spindle-head changing systems ..... 538
Position display in a tilted system ..... 539
Limitations on working with the tilting function ..... 539
Activating manual tilting ..... 540
Setting the current tool-axis direction as the active machining direction (FCL 2 function) ..... 541
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15 Positioning with Manual Data Input ..... 543
15.1 Programming and Executing Simple Machining Operations ..... 544
Positioning with Manual Data Input (MDI) ..... 544
Protecting and erasing programs in $MDI ..... 547
44
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16 Test Run and Program Run ..... 549
16.1 Graphics ..... 550
Application ..... 550
Overview of display modes ..... 552
Plan view ..... 552
Projection in 3 planes ..... 553
3-D view ..... 554
Magnifying details ..... 557
Repeating graphic simulation ..... 558
Displaying the tool ..... 558
Measuring the machining time ..... 559
16.2 Functions for Program Display ..... 560
Overview ..... 560
16.3 Test Run ..... 561
Application ..... 561
16.4 Program Run ..... 566
Application ..... 566
Running a part program ..... 567
Interrupting machining ..... 568
Moving the machine axes during an interruption ..... 570
Resuming program run after an interruption ..... 571
Mid-program startup (block scan) ..... 572
Returning to the contour ..... 575
Entering a program with the GOTO key ..... 575
Tool usage test ..... 576
16.5 Automatic Program Start ..... 578
Application ..... 578
16.6 Optional Block Skip ..... 579
Application ..... 579
Erasing the “/” character ..... 579
16.7 Optional Program-Run Interruption ..... 580
Application ..... 580
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17 MOD Functions ..... 581
17.1 Selecting MOD Functions ..... 582
Selecting the MOD functions ..... 582
Changing the settings ..... 582
Exiting the MOD functions ..... 582
Overview of MOD functions ..... 583
17.2 Software Numbers ..... 584
Function ..... 584
17.3 Entering Code Numbers ..... 585
Function ..... 585
17.4 Loading Service Packs ..... 586
Function ..... 586
17.5 Setting the Data Interfaces ..... 587
Function ..... 587
Setting the RS-232 interface ..... 587
Setting the RS-422 interface ..... 587
Setting the OPERATING MODE of the external device ..... 587
Setting the baud rate ..... 587
Assign ..... 588
Software for data transfer ..... 589
17.6 Ethernet Interface ..... 591
Introduction ..... 591
Connection possibilities ..... 591
Connecting the iTNC directly with a Windows PC ..... 592
Configuring the TNC ..... 594
17.7 Configuring PGM MGT ..... 601
Function ..... 601
Changing the PGM MGT setting ..... 601
Dependent files ..... 602
17.8 Machine-Specific User Parameters ..... 603
Function ..... 603
17.9 Showing the Workpiece in the Working Space ..... 604
Function ..... 604
Rotate the entire image ..... 605
17.10 Position Display Types ..... 606
Function ..... 606
17.11 Unit of Measurement ..... 607
Function ..... 607
17.12 Selecting the Programming Language for $MDI ..... 608
Function ..... 608
17.13 Selecting the Axes for Generating L Blocks ..... 609
Function ..... 609
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17.14 Entering the Axis Traverse Limits, Datum Display ..... 610
Function ..... 610
Working without additional traverse limits ..... 610
Find and enter the maximum traverse ..... 610
Datum display ..... 611
17.15 Displaying HELP Files ..... 612
Function ..... 612
Selecting HELP files ..... 612
17.16 Displaying Operating Times ..... 613
Function ..... 613
17.17 Checking the Data Carrier ..... 614
Function ..... 614
Performing the data carrier check ..... 614
17.18 Setting the System Time ..... 615
Function ..... 615
Selecting appropriate settings ..... 615
17.19 TeleService ..... 616
Function ..... 616
Calling/exiting TeleService ..... 616
17.20 External Access ..... 617
Function ..... 617
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18 Tables and Overviews ..... 619
18.1 General User Parameters ..... 620
Input possibilities for machine parameters ..... 620
Selecting general user parameters ..... 620
List of general user parameters ..... 621
18.2 Pin Layouts and Connecting Cables for the Data Interfaces ..... 635
RS-232-C/V.24 interface for HEIDENHAIN devices ..... 635
Non-HEIDENHAIN devices ..... 636
RS-422/V.11 interface ..... 637
Ethernet interface RJ45 socket ..... 637
18.3 Technical Information ..... 638
18.4 Exchanging the Buffer Battery ..... 646
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19 iTNC 530 with Windows XP (Option) ..... 647
19.1 Introduction ..... 648
End User License Agreement (EULA) for Windows XP ..... 648
General ..... 648
Specifications ..... 649
19.2 Starting an iTNC 530 Application ..... 650
Logging on to Windows ..... 650
19.3 Switching Off the iTNC 530 ..... 652
Fundamentals ..... 652
Logging a user off ..... 652
Exiting the iTNC application ..... 653
Shutting down Windows ..... 654
19.4 Network Settings ..... 655
Prerequisite ..... 655
Adjusting the network settings ..... 655
Controlling access ..... 656
19.5 Specifics About File Management ..... 657
The iTNC drive ..... 657
Data transfer to the iTNC 530 ..... 658
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First Steps with the
iTNC 530
Page 52
1.1Overview
This chapter is intended to help TNC beginners quickly learn to handle
the most important procedures. For more information on a respective
topic, see the section referred to in the text.
The following topics are included in this chapter
Machine Switch-On
1.1 Overview
Programming the First Part
Graphically Testing the Program
SETTING UP TOOLS
Workpiece Setup
Running the First Program
52 First Steps with the iTNC 530
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1.2Machine Switch-On
Acknowledge the power interruption and move
to the reference points
Switch-on and crossing the reference points can vary
depending on the machine tool. Your machine manual
provides more detailed information.
U Switch on the power supply for control and machine. The TNC starts
the operating system. This process may take several minutes. Then
the TNC will display the message “Power interruption.”
U Press the CE key: The TNC converts the PLC program
U Switch on the control voltage: The TNC checks
operation of the emergency stop circuit and goes into
the reference run mode
U Cross the reference points manually in the displayed
sequence: For each axis press the machine START
button. If you have absolute linear and angle encoders
on your machine there is no need for a reference run.
The TNC is now ready for operation in the Manual Operation mode.
Further information on this topic
Traversing the reference marks: See “Switch-on,” page 494
Operating modes:See “Programming and Editing,” page 79
1.2 Machine Switch-On
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1.3Programming the First Part
Select the correct operating mode
You can write programs only in the Programming and Editing mode:
U Press the operating modes key: The TNC goes into
the Programming and Editing mode
Further information on this topic
Operating modes:See “Programming and Editing,” page 79
The most important TNC keys
Functions for conversational guidanceKey
Confirm entry and activate the next dialog
prompt
Ignore the dialog question
1.3 Programming the First Part
End the dialog immediately
Abort dialog, discard entries
Soft keys on the screen with which you select
functions appropriate to the active state
Further information on this topic
Writing and editing programs: See “Editing a program,” page 105
Overview of keys: See “Controls of the TNC,” page 2
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Create a new program/file management
U Press the PGM MGT key: the TNC displays the file
management. The file management of the TNC is
arranged much like the file management on a PC with
the Windows Explorer. The file management enables
you to manipulate data on the TNC hard disk
U Use the arrow keys to select the folder in which you
want to open the new file
U Enter a file name with the extension .H: The TNC then
automatically opens a program and asks for the unit
of measure for the new program
U To select the unit of measure: press the MM or INCH
soft key: The TNC automatically starts the workpiece
blank definition (see “Define a workpiece blank” on
page 56)
The TNC automatically generates the first and last blocks of the
program. Afterwards you can no longer change these blocks.
Further information on this topic
File management: See “Working with the File Manager,” page 113
Creating a new program: See “Creating and Writing Programs,”
page 99
1.3 Programming the First Part
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Define a workpiece blank
Immediately after you have created a new program, the TNC starts the
dialog for entering the workpiece blank definition. Always define the
workpiece blank as a cuboid by entering the MIN and MAX points,
each with reference to the selected reference point.
After you have created a new program, the TNC automatically initiates
the workpiece blank definition and asks for the required data:
U Spindle axis Z?: Enter the active spindle axis. Z is saved as default
setting. Accept with the ENT key
U Def BLK FORM: Min-corner?: Smallest X coordinate of the workpiece
blank with respect to the reference point, e.g. 0. Confirm with the
ENT key
U Def BLK FORM: Min-corner?: Smallest Y coordinate of the workpiece
blank with respect to the reference point, e.g. 0. Confirm with the
ENT key
U Def BLK FORM: Min-corner?: Smallest Z coordinate of the workpiece
blank with respect to the reference point, e.g. -40. Confirm with the
ENT key
U Def BLK FORM: Max-corner?: Largest X coordinate of the workpiece
1.3 Programming the First Part
blank with respect to the reference point, e.g. 100. Confirm with the
ENT key
U Def BLK FORM: Max-corner?: Largest Y coordinate of the workpiece
blank with respect to the reference point, e.g. 100. Confirm with the
ENT key
U Def BLK FORM: Max-corner?: Largest Z coordinate of the workpiece
blank with respect to the reference point, e.g. 0. Confirm with the
ENT key
Example NC blocks
0 BEGIN PGM NEW MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 END PGM NEW MM
100
Z
Y
MAX
X
-40
0
MIN
0
100
Further information on this topic
Defining the workpiece blank: (See page 100)
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Program layout
NC programs should be arranged consistently in a similar manner. This
makes it easier to find your place and reduces errors.
Recommended program layout for simple, conventional contour
machining
1 Call tool, define tool axis
2 Retract the tool
3 Pre-position the tool in the working plane near the contour starting
point
4 In the tool axis, position the tool above the workpiece, or pre-
position immediately to workpiece depth. If required, switch on
the spindle/coolant
5 Move to the contour
6 Machine the contour
7 Leave the contour
8 Retract the tool, end the program
Further information on this topic:
Contour programming: See “Tool Movements,” page 188
Recommended program layout for simple cycle programs
1 Call tool, define tool axis
2 Retract the tool
3 Define the machining positions
4 Define the fixed cycle
5 Call the cycle, switch on the spindle/coolant
6 Retract the tool, end the program
Further information on this topic:
Cycle programming: See User’s Manual for Cycles
Example: Layout of contour machining programs
0 BEGIN PGM BSPCONT MM
1 BLK FORM 0.1 Z X... Y... Z...
2 BLK FORM 0.2 X... Y... Z...
3 TOOL CALL 5 Z S5000
4 L Z+250 R0 FMAX
5 L X... Y... R0 FMAX
6 L Z+10 R0 F3000 M13
7 APPR ... RL F500
...
16 DEP ... X... Y... F3000 M9
17 L Z+250 R0 FMAX M2
18 END PGM BSPCONT MM
Example: Program layout for cycle programming
0 BEGIN PGM BSBCYC MM
1 BLK FORM 0.1 Z X... Y... Z...
2 BLK FORM 0.2 X... Y... Z...
3 TOOL CALL 5 Z S5000
4 L Z+250 R0 FMAX
5 PATTERN DEF POS1( X... Y... Z... ) ...
6 CYCL DEF...
7 CYCL CALL PAT FMAX M13
8 L Z+250 R0 FMAX M2
9 END PGM BSBCYC MM
1.3 Programming the First Part
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Program a simple contour
The contour shown to the right is to be milled once to a depth of 5 mm.
You have already defined the workpiece blank. After you have initiated
a dialog through a function key, enter all the data requested by the
TNC in the screen header.
U Call the tool: Enter the tool data. Confirm each of your
entries with the ENT key. Do not forget the tool axis
U Retract the tool: Press the orange axis key Z in order
to get clear in the tool axis, and enter the value for the
position to be approached, e.g. 250. Confirm with the
ENT key
U Confirm Radius comp.: RL/RR/no comp? by pressing
the ENT key: Activate the radius compensation
U Confirm Feed rate F=? with the ENT key: Move at
rapid traverse (FMAX)
U Confirm the Miscellaneous function M? with the
END key: The TNC saves the entered positioning
block
1.3 Programming the First Part
U Preposition the tool in the working plane: Press the
orange X axis key and enter the value for the position
to be approached, e.g. -20
U Press the orange Y axis key and enter the value for the
position to be approached, e.g. -20. Confirm with the
ENT key
U Confirm Radius comp.: RL/RR/no comp? by pressing
the ENT key: Do not activate the radius compensation
U Confirm Feed rate F=? with the ENT key: Move at
rapid traverse (FMAX)
U Confirm the Miscellaneous function M? with the
END key: The TNC saves the entered positioning
block
U Move the tool to workpiece depth: Press the orange Y
axis key and enter the value for the position to be
approached, e.g. -5. Confirm with the ENT key
U Confirm Radius comp.: RL/RR/no comp? by pressing
the ENT key: Do not activate the radius compensation
U Feed rate F=? Enter the positioning feed rate, e.g.
3000 mm/min and confirm with the ENT key
U Miscellaneous function M? Switch on the spindle and
coolant, e.g. M13. Confirm with the END key: The TNC
saves the entered positioning block
Y
95
2
1
5
5
10
3
10
20
4
20
X
9
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U Move to the contour: Press the APPR/DEP key: The
TNC shows a soft-key row with approach and
departure functions
U Select the approach function APPR CT: Enter the
coordinates of the contour starting point 1 in X and Y,
e.g. 5/5. Confirm with the ENT key
U Center angle? Enter the approach angle, e.g.90°, and
confirm with the ENT key
U Circle radius? Enter the approach radius, e.g. 8 mm,
and confirm with the ENT key
U Confirm the Radius comp.: RL/RR/no comp? with the
RL soft key: Activate the radius compensation to the
left of the programmed contour
U Feed rate F=? Enter the machining feed rate, e.g. 700
mm/min, and confirm your entry with the END key
U Machine the contour and move to contour point 2: You
only need to enter the information that changes. In
other words, enter only the Y coordinate 95 and save
your entry with the END key
U Move to contour point 3: Enter the X coordinate 95
and save your entry with the END key
U Define the chamfer at contour point 3: Enter the
chamfer width 10 mm and save with the END key
U Move to contour point 4: Enter the Y coordinate 5 and
save your entry with the END key
U Define the chamfer at contour point 4: Enter the
chamfer width 20 mm and save with the END key
U Move to contour point 1: Enter the X coordinate 5 and
save your entry with the END key
1.3 Programming the First Part
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U Depart the contour
U Select the departure function DEP CT
U Center angle? Enter the departure angle, e.g. 90°, and
confirm with the ENT key
U Circle radius? Enter the departure radius, e.g. 8 mm,
and confirm with the ENT key
U Feed rate F=? Enter the positioning feed rate, e.g.
3000 mm/min and confirm with the ENT key
U Miscellaneous function M? Switch off the coolant,
e.g. M9, with the END key: The TNC saves the entered
positioning block
U Retract the tool: Press the orange axis key Z in order
to get clear in the tool axis, and enter the value for the
position to be approached, e.g. 250. Confirm with the
ENT key
U Confirm Radius comp.: RL/RR/no comp? by pressing
the ENT key: Do not activate the radius compensation
1.3 Programming the First Part
U Confirm Feed rate F=? with the ENT key: Move at
rapid traverse (FMAX)
U Miscellaneous function M? Enter M2 to end the
program and confirm with the END key: The TNC
saves the entered positioning block
Further information on this topic
Complete example with NC blocks: See “Example: Linear
movements and chamfers with Cartesian coordinates,” page 209
Creating a new program: See “Creating and Writing Programs,”
page 99
Approaching/departing contours: See “Contour Approach and
Departure,” page 192
Programming contours: See “Overview of path functions,” page
200
Programmable feed rates: See “Possible feed rate input,” page 103
Tool radius compensation: See “Tool radius compensation,” page
183
Miscellaneous functions (M): See “Miscellaneous Functions for
Program Run Control, Spindle and Coolant,” page 340
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Create a cycle program
The holes (depth of 20 mm) shown in the figure at right are to be drilled
with a standard drilling cycle. You have already defined the workpiece
blank.
U Call the tool: Enter the tool data. Confirm each of your
entries with the ENT key. Do not forget the tool axis
U Retract the tool: Press the orange axis key Z in order
to get clear in the tool axis, and enter the value for the
position to be approached, e.g. 250. Confirm with the
ENT key
U Confirm Radius comp.: RL/RR/no comp? by pressing
the ENT key: Activate the radius compensation
U Confirm Feed rate F=? with the ENT key: Move at
rapid traverse (FMAX)
U Confirm the Miscellaneous function M? with the
END key: The TNC saves the entered positioning
block
U Call the cycle menu
U Display the drilling cycles
U Select the standard drilling cycle 200: The TNC starts
the dialog for cycle definition. Enter all parameters
requested by the TNC step by step and conclude each
entry with the ENT key. In the screen to the right, the
TNC also displays a graphic showing the respective
cycle parameter
100
Y
90
10
20
10
9080
100
X
1.3 Programming the First Part
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U Call the menu for special functions
U Display the functions for point machining
U Select the pattern definition
U Select point entry: Enter the coordinates of the 4
points and confirm each with the ENT key. After
entering the fourth point, save the block with the END
key
U Display the menu for defining the cycle call
U Run the drilling cycle on the define pattern:
U Confirm Feed rate F=? with the ENT key: Move at
rapid traverse (FMAX)
U Miscellaneous function M? Switch on the spindle and
coolant, e.g. M13. Confirm with the END key: The TNC
saves the entered positioning block
U Retract the tool: Press the orange axis key Z in order
1.3 Programming the First Part
to get clear in the tool axis, and enter the value for the
position to be approached, e.g. 250. Confirm with the
ENT key
U Confirm Radius comp.: RL/RR/no comp? by pressing
the ENT key: Do not activate the radius compensation
U Confirm Feed rate F=? with the ENT key: Move at
rapid traverse (FMAX)
U Miscellaneous function M? Enter M2 to end the
program and confirm with the END key: The TNC
saves the entered positioning block
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Example NC blocks
0 BEGIN PGM C200 MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL CALL 5 Z S4500
4 L Z+250 R0 FMAX
5 PATTERN DEF
Q200=2;SETUP CLEARANCE
Q201=-20 ;DEPTH
Q206=250 ;FEED RATE FOR PLNGN
Q202=5;PLUNGING DEPTH
Q210=0;DWELL TIME AT TOP
Q203=-10 ;SURFACE COORDINATE
Q204=20;2ND SET-UP CLEARANCE
Q211=0.2 ;DWELL TIME AT DEPTH
7 CYCL CALL PAT FMAX M13
8 L Z+250 R0 FMAX M2
9 END PGM C200 MM
Definition of workpiece blank
Tool call
Retract the tool
Defining Machining Positions
Define the cycle
1.3 Programming the First Part
Spindle and coolant on, call cycle
Retract in the tool axis, end program
Further information on this topic
Creating a new program: See “Creating and Writing Programs,”
page 99
Cycle programming: See User’s Manual for Cycles
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1.4Graphically Testing the
Program
Select the correct operating mode
You can test programs only in the Test Run mode:
U Press the operating modes key: The TNC goes into
the Test Run mode
Further information on this topic
Operating modes of the TNC: See “Operating Modes,” page 78
Testing programs: See “Test Run,” page 561
Select the tool table for the test run
You only need to execute this step is you have not activated a tool
table in the Test Run mode.
U Press the PGM MGT key: the TNC displays the file
management
U Press the SELECT TYPE soft key: The TNC shows a
soft-key menu for selection of the file type to be
1.4 Graphically Testing the Program
displayed
U Press the SHOW ALL soft key: The TNC shows all
saved files in the right window
U Move the highlight to the left onto the directories
U Move the highlight to the TNC:\ directory
U Move the highlight to the right onto the files
U Move the highlight to the file TOOL.T (active tool
table) and load with the ENT key: TOOL.T receives
that status S and is therefore active for the Test Run
U Press the END key: Leave the file manager
Further information on this topic
Tool management: See “Entering tool data in the table,” page 162
Testing programs: See “Test Run,” page 561
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Choose the program you want to test
U Press the PGM MGT key: the TNC displays the file
management
U Press the LAST FILES soft key: The TNC opens a pop-
up window with the most recently selected files
U Use the arrow keys to select the program that you
want to test. Load with the ENT key
Further information on this topic
Selecting a program: See “Working with the File Manager,” page
113
Select the screen layout and the view
U Press the key for selecting the screen layout. The TNC
shows all available alternatives in the soft-key row
U Press the PROGRAM + GRAPHICS soft key: In the
left half of the screen the TNC shows the program; in
the right half it shows the workpiece blank
U Select the desired view via soft key
U Plan view
U Projection in three planes
1.4 Graphically Testing the Program
U 3-D view
Further information on this topic
Graphic functions: See “Graphics,” page 550
Running a test run: See “Test Run,” page 561
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Start the program test
U Press the RESET + START soft key: The TNC
simulates the active program up to a programmed
break or to the program end
U While the simulation is running you can use the soft
keys to change views
U Press the STOP soft key: The TNC interrupts the test
run
U Press the START soft key: The TNC resumes the test
run after a break
Further information on this topic
Running a test run: See “Test Run,” page 561
Graphic functions: See “Graphics,” page 550
Adjusting the test speed:See “Setting the speed of the test run,”
page 551
1.4 Graphically Testing the Program
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1.5Setting Up Tools
Select the correct operating mode
Tools are set up in the Manual Operation mode:
U Press the operating modes key: The TNC goes into
the Manual Operation mode
Further information on this topic
Operating modes of the TNC: See “Operating Modes,” page 78
Prepare and measure tools
U Clamp the required tools in their chucks
U When measuring with an external tool presetter: Measure the tools,
note down the length and radius, or transfer them directly to the
machine through a transfer program
U When measuring on the machine: Place the tools into the tool
changer (See page 68)
The tool table TOOL.T
In the tool table TOOL.T (permanently saved under TNC:\), save the
tool data such as length and radius, but also further tool-specific
information that the TNC needs to conduct its functions.
To enter tool data in the tool table TOOL.T, proceed as follows:
U Display the tool table
U Edit the tool table: Set the EDITING soft key to ON
U With the upward or downward arrow keys you can
select the tool number that you want to edit
U With the rightward or leftward arrow keys you can
select the tool data that you want to edit
U To leave the tool table, press the END key
Further information on this topic
Operating modes of the TNC: See “Operating Modes,” page 78
Working with the tool table: See “Entering tool data in the table,”
page 162
1.5 Setting Up Tools
HEIDENHAIN iTNC 53067
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The pocket table TOOL_P.TCH
The function of the pocket table depends on the machine.
Your machine manual provides more detailed information.
In the pocket table TOOL_P.TCH (permanently saved under TNC:\) you
specify which tools your tool magazine contains.
To enter data in the pocket table TOOL_P.TCH, proceed as follows:
U Display the tool table
1.5 Setting Up Tools
Further information on this topic
Operating modes of the TNC: See “Operating Modes,” page 78
Working with the pocket table: See “Pocket table for tool changer,”
page 170
U Display the pocket table
U Edit the pocket table: Set the EDITING soft key to ON
U With the upward or downward arrow keys you can
select the pocket number that you want to edit
U With the rightward or leftward arrow keys you can
select the data that you want to edit
U To leave the pocket table, press the END key
68 First Steps with the iTNC 530
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1.6Workpiece Setup
Select the correct operating mode
Workpieces are set up in the Manual Operation or Electronic
Handwheel mode
U Press the operating modes key: The TNC goes into
the Manual Operation mode
Further information on this topic
Manual mode: See “Moving the Machine Axes,” page 498
Clamp the workpiece
Mount the workpiece with a fixture on the machine table. If you have
a 3-D touch probe on your machine, then you do not need to clamp the
workpiece parallel to the axes.
If you do not have a 3-D touch probe available, you have to align the
workpiece so that it is fixed with its edges parallel to the machine
axes.
1.6 Workpiece Setup
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Align the workpiece with a 3-D touch probe
system
U Insert the 3-D touch probe: In the Manual Data Input (MDI) operating
mode, run a TOOL CALL block containing the tool axis, and then return
to the Manual Operation mode (in MDI mode you can run an
individual NC block independently of the others)
U Select the probing functions: The TNC displays the
available functions in the soft-key row
U Measure the basic rotation: The NC displays the basic
rotation menu. To identify the basic rotation, probe
two points on a straight surface of the workpiece
1.6 Workpiece Setup
U Use the axis-direction keys to pre-position the touch
probe to a position near the first contact point
U Select the probing direction via soft key
U Press NC start: The touch probe moves in the defined
direction until it contacts the workpiece and then
automatically returns to its starting point
U Use the axis-direction keys to pre-position the touch
probe to a position near the second contact point
U Press NC start: The touch probe moves in the defined
direction until it contacts the workpiece and then
automatically returns to its starting point
U Then the TNC shows the measured basic rotation
U Press the END key to close the menu and then
answer the question of whether the basic rotation
should be transferred to the preset table by pressing
the NO ENT key (no transfer)
Further information on this topic
MDI operating mode:See “Programming and Executing Simple
Machining Operations,” page 544
Workpiece alignment: See “Compensating Workpiece
Misalignment with a 3-D Touch Probe,” page 525
70 First Steps with the iTNC 530
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Set the datum with a 3-D touch probe
U Insert the 3-D touch probe: In the MDI mode, run a TOOL CALL block
containing the tool axis and then return to the Manual Operation
mode
U Select the probing functions: The TNC displays the
available functions in the soft-key row
U Set the reference point at a tool corner, for example:
The TNC asks whether the prove points from the
previously measured basic rotation should be loaded.
Press the ENT key to load points
U Position the touch probe at a position near the first
touch point of the side that was not probed for basic
rotation.
U Select the probing direction via soft key
U Press NC start: The touch probe moves in the defined
direction until it contacts the workpiece and then
automatically returns to its starting point
U Use the axis-direction keys to pre-position the touch
probe to a position near the second contact point
U Press NC start: The touch probe moves in the defined
direction until it contacts the workpiece and then
automatically returns to its starting point
U Then the TNC shows the coordinates of the measured
corner point
U Set to 0: Press the SET DATUM soft key
U Press the END to close the menu
1.6 Workpiece Setup
Further information on this topic
Datum setting: See “Datum Setting with a 3-D Touch Probe,” page
527
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1.7Running the First Program
Select the correct operating mode
You can run programs either in the Single Block or the Full Sequence
mode:
U Press the operating mode key: The TNC goes into the
Program Run, Single Block mode and the TNC
executes the program block by block. You have to
confirm each block with the NC key
U Press the operating mode key: The TNC goes into the
Program Run, Full Sequence mode and the TNC
executes the program after NC start up to a program
break or to the end of the program
Further information on this topic
Operating modes of the TNC: See “Operating Modes,” page 78
Running programs: See “Program Run,” page 566
1.7 Running the First Program
Choose the program you want to run
U Press the PGM MGT key: the TNC displays the file
management
U Press the LAST FILES soft key: The TNC opens a pop-
up window with the most recently selected files
U If desired, use the arrow keys to select the program
that you want to run. Load with the ENT key
Further information on this topic
File management: See “Working with the File Manager,” page 113
Start the program
U Press the NC start button: The TNC executes the
active program
Further information on this topic
Running programs: See “Program Run,” page 566
72 First Steps with the iTNC 530
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Introduction
Page 74
2.1The iTNC 530
HEIDENHAIN TNC controls are workshop-oriented contouring
controls that enable you to program conventional machining
operations right at the machine in an easy-to-use conversational
programming language. They are designed for milling, drilling and
boring machines, as well as for machining centers. The iTNC 530 can
control up to 12 axes. You can also change the angular position of the
spindle under program control.
An integrated hard disk provides storage for as many programs as you
like, even if they were created off-line. For quick calculations you can
2.1 The iTNC 530
call up the on-screen pocket calculator at any time.
Keyboard and screen layout are clearly arranged in such a way that the
functions are fast and easy to use.
Programming: HEIDENHAIN conversational,
smarT.NC and DIN/ISO formats
The HEIDENHAIN conversational programming format is an especially
easy method of writing programs. Interactive graphics illustrate the
individual machining steps for programming the contour. If a
production drawing is not dimensioned for NC, the HEIDENHAIN FK
free contour programming performs the necessary calculations
automatically. Workpiece machining can be graphically simulated
either during or before actual machining.
The smarT.NC operating mode offers TNC beginners an especially
simple possibility to quickly and without much training create
structured conversational dialog programs. Separate user
documentation is available for smarT.NC.
It is also possible to program the TNCs in ISO format or DNC mode.
You can also enter and test one program while the control is running
another.
Compatibility
The TNC can run all part programs that were written on HEIDENHAIN
controls TNC 150 B and later. In as much as old TNC programs contain
OEM cycles, the iTNC 530 must be adapted to them with the PC
software CycleDesign. For more information, contact your machine
tool builder or HEIDENHAIN.
74 Introduction
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2.2Visual Display Unit and
Keyboard
Visual display unit
The TNC is delivered with the BF 150 (TFT) color flat-panel display (see
figure).
1 Header
When the TNC is on, the selected operating modes are shown in
the screen header: the machining mode at the left and the
programming mode at right. The currently active mode is
displayed in the larger box, where the dialog prompts and TNC
messages also appear (unless the TNC is showing only graphics).
2 Soft keys
In the footer the TNC indicates additional functions in a soft-key
row. You can select these functions by pressing the keys
immediately below them. The lines immediately above the softkey row indicate the number of soft-key rows that can be called
with the black arrow keys to the right and left. The active soft-key
row is indicated by brightened bar.
3 Soft-key selection keys
4 Shift between soft-key rows
5 Sets the screen layout
6 Shift key for switchover between machining and programming
modes
7 Soft-key selection keys for machine tool builders
8 Switches soft-key rows for machine tool builders
1
1
5
4
2
3
1
8
7
6
1
4
2.2 Visual Display Unit and Keyboard
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Sets the screen layout
You select the screen layout yourself: In the PROGRAMMING AND
EDITING mode of operation, for example, you can have the TNC show
program blocks in the left window while the right window displays
programming graphics. You could also display the program structure
in the right window instead, or display only program blocks in one large
window. The available screen windows depend on the selected
operating mode.
To change the screen layout:
Press the SPLIT SCREEN key: The soft-key row
shows the available layout options (see “Operating
Modes,” page 78).
Select the desired screen layout.
2.2 Visual Display Unit and Keyboard
76 Introduction
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Operating panel
The TNC is delivered with the TE 530 keyboard unit. The figure shows
the controls and displays of the TE 530 keyboard unit.
1 Alphabetic keyboard for entering texts and file names, and for ISO
programming.
Dual-processor version: Additional keys for Windows operation
2 File management
Calculator
MOD function
HELP function
3 Programming modes
4 Machine operating modes
5 Initiation of programming dialog
6 Arrow keys and GOTO jump command
7 Numerical input and axis selection
8 Touchpad: Only for operating the dual-processor version, soft
keys and smarT.NC
9 smarT.NC navigation keys
The functions of the individual keys are described on the inside front
cover.
Some machine manufacturers do not use the standard
operating panel from HEIDENHAIN. Please refer to your
machine manual in these cases.
Machine panel buttons, e.g. NC START or NC STOP, are
also described in the manual for your machine tool.
77
1
79
2
1
4
1
5
3
6
8
2.2 Visual Display Unit and Keyboard
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2.3Operating Modes
Manual Operation and Electronic Handwheel
The Manual Operation mode is required for setting up the machine
tool. In this mode of operation, you can position the machine axes
manually or by increments, set the datums, and tilt the working plane.
The Electronic Handwheel mode of operation allows you to move the
machine axes manually with the HR electronic handwheel.
Soft keys for selecting the screen layout (select as described
previously)
WindowSoft key
2.3 Operating Modes
Positions
Left: positions, right: status display
Left: positions, right: active collision objects
(FCL4 function).
Positioning with Manual Data Input
This mode of operation is used for programming simple traversing
movements, such as for face milling or pre-positioning.
Soft keys for selecting the screen layout
WindowSoft key
Program
Left: program blocks, right: status display
Left: program blocks, right: active collision
objects (FCL4 function). If this view is selected,
then the TNC indicates a collision with a red
frame around the graphics window.
78 Introduction
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Programming and Editing
In this mode of operation you can write your part programs. The FK
free programming feature, the various cycles and the Q parameter
functions help you with programming and add necessary information.
If desired, the programming graphics or the 3-D line graphics (FCL 2
function) display the programmed traverse paths.
Soft keys for selecting the screen layout
WindowSoft key
Program
Left: program blocks, right: program structure
Left: program blocks, right: graphics
Left: program blocks, right: 3-D line graphics
Test Run
In the Test Run mode of operation, the TNC checks programs and
program sections for errors, such as geometrical incompatibilities,
missing or incorrect data within the program or violations of the work
space. This simulation is supported graphically in different display
modes.
With the dynamic collision monitoring (DCM) software option you can
test the program for potential collisions. As during program run, the
TNC takes into account all permanent machine components defined
by the machine manufacturer as well as all measured fixtures.
Soft keys for selecting the screen layout: see “Program Run, Full
Sequence and Program Run, Single Block,” page 80.
2.3 Operating Modes
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Program Run, Full Sequence and Program Run,
Single Block
In the Program Run, Full Sequence mode of operation the TNC
executes a part program continuously to its end or to a manual or
programmed stop. You can resume program run after an interruption.
In the Program Run, Single Block mode of operation you execute each
block separately by pressing the machine START button.
Soft keys for selecting the screen layout
WindowSoft key
Program
2.3 Operating Modes
Left: program, right: program structure
Left: program, right: status
Left: program, right: graphics
Graphics
Left: program blocks, right: active collision
objects (FCL4 function). If this view is selected,
then the TNC indicates a collision with a red
frame around the graphics window.
Active collision objects (FCL4 function) If this
view is selected, then the TNC indicates a
collision with a red frame around the graphics
window.
Soft keys for selecting the screen layout for pallet tables
WindowSoft key
Pallet table
Left: program blocks, right: pallet table
Left: pallet table, right: status
Left: pallet table, right: graphics
80 Introduction
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2.4Status Displays
“General” status display
The status display in the lower part of the screen informs you of the
current state of the machine tool. It is displayed automatically in the
following modes of operation:
Program Run, Single Block and Program Run, Full Sequence, except
if the screen layout is set to display graphics only, and
Positioning with Manual Data Input (MDI).
In the Manual mode and Electronic Handwheel mode the status
display appears in the large window.
Information in the status display
SymbolMeaning
ACTL.
Actual or nominal coordinates of the current position
2.4 Status Displays
X Y Z
F S M
Machine axes; the TNC displays auxiliary axes in
lower-case letters. The sequence and quantity of
displayed axes is determined by the machine tool
builder. Refer to your machine manual for more
information.
The displayed feed rate in inches corresponds to one
tenth of the effective value. Spindle speed S, feed
rate F and active M functions.
Program run started.
Axis is locked
Axis can be moved with the handwheel
Axes are moving under a basic rotation
Axes are moving in a tilted working plane
The M128 function or TCPM FUNCTION is active
The Dynamic Collision Monitoring function (DCM)
is active
The Adaptive Feed Function (AFC) is active
(software option)
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SymbolMeaning
One or more global program settings are active
(software option)
Number of the active presets from the preset table.
If the datum was set manually, the TNC displays the
text MAN behind the symbol.
Additional status displays
The additional status displays contain detailed information on the
program run. They can be called in all operating modes except for the
2.4 Status Displays
Programming and Editing mode of operation.
To switch on the additional status display:
Call the soft-key row for screen layout.
Screen layout with additional status display: In the
right half of the screen, the TNC shows the Overview
status form.
To select an additional status display:
Shift the soft-key rows until the STATUS soft keys
appear.
Either select the additional status display, e.g.
positions and coordinates, or
use the soft keys to select the desired view.
With the soft keys or switch-over soft keys, you can choose directly
between the available status displays.
Please note that some of the status information described
below is not available unless the associated software
option is enabled on your TNC.
82 Introduction
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Overview
After switch-on, the TNC displays the Overview status form, provided
that you have selected the PROGRAM+STATUS screen layout (or
POSITION + STATUS). The overview form contains a summary of the
most important status information, which you can also find on the
various detail forms.
Soft keyMeaning
Position display in up to 5 axes
Tool information
Active M functions
Active coordinate transformations
Active subprogram
Active program section repeat
Program called with PGM CALL
Current machining time
Name of the active main program
General program information (PGM tab)
Soft keyMeaning
No direct
selection
possible
Name of the active main program
Circle center CC (pole)
Dwell time counter
Machining time when the program was
completely simulated in the Test Run operating
mode
2.4 Status Displays
Current machining time in percent
Current time
Current/programmed contouring feed rate
Active programs
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General pallet information (PAL tab)
Soft keyMeaning
No direct
selection
possible
Program section repeat/Subprograms (LBL tab)
Soft keyMeaning
No direct
selection
possible
2.4 Status Displays
Information on standard cycles (CYC tab)
Soft keyMeaning
No direct
selection
possible
Number of the active pallet preset
Active program section repeats with block
number, label number, and number of
programmed repeats/repeats yet to be run
Active subprogram numbers with block number in
which the subprogram was called and the label
number that was called
Active machining cycle
Active values of Cycle 32 Tolerance
84 Introduction
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Active miscellaneous functions M (M tab)
Soft keyMeaning
No direct
selection
possible
List of the active M functions with fixed meaning
List of the active M functions that are adapted by
your machine manufacturer
2.4 Status Displays
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Positions and coordinates (POS tab)
Soft keyMeaning
Type of position display, e.g. actual position
Value traversed in virtual axis direction VT (only with
“global program settings” software option)
Tilt angle of the working plane
Angle of a basic rotation
2.4 Status Displays
Information on tools (TOOL tab)
Soft keyMeaning
T: Tool number and name
RT: Number and name of a replacement tool
Tool axis
Tool lengths and radii
Oversizes (delta values) from the tool table (TAB) and
the TOOL CALL (PGM)
Tool life, maximum tool life (TIME 1) and maximum
tool life for TOOL CALL (TIME 2)
Display of the active tool and the (next) replacement
tool
86 Introduction
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Tool measurement (TT tab)
The TNC only displays the TT tab if the function is active
on your machine.
Soft keyMeaning
No direct
selection
possible
Number of the tool to be measured
Display whether the tool radius or the tool length
is being measured
MIN and MAX values of the individual cutting
edges and the result of measuring the rotating
tool (DYN = dynamic measurement)
Cutting edge number with the corresponding
measured value. If the measured value is
followed by an asterisk, the allowable tolerance in
the tool table was exceeded
Coordinate transformations (TRANS tab)
Soft keyMeaning
Name of the active datum table
Active datum number (#), comment from the
active line of the active datum number (DOC) from
Cycle 7
Active datum shift (Cycle 7); The TNC displays an
active datum shift in up to 8 axes
Mirrored axes (Cycle 8)
Active basic rotation
2.4 Status Displays
Active rotation angle (Cycle 10)
Active scaling factor/factors (Cycles 11 / 26); The
TNC displays an active scaling factor in up to 6
axes
Scaling datum
For further information, refer to the User's Manual for Cycles,
"Coordinate Transformation Cycles."
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Global program settings 1 (GPS1 tab, software option)
The TNC only displays the tab if the function is active on
your machine.
Soft keyMeaning
No direct
selection
possible
Swapped axes
2.4 Status Displays
Superimposed datum shift
Superimposed mirroring
Global program settings 2 (GPS2 tab, software option)
The TNC only displays the tab if the function is active on
your machine.
Soft keyMeaning
No direct
selection
possible
Locked axes
Superimposed basic rotation
Superimposed rotation
Active feed rate factor
88 Introduction
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Adaptive Feed Control (AFC tab, software option)
The TNC only displays the AFC tab if the function is active
on your machine.
Soft keyMeaning
No direct
selection
possible
Active mode in which adaptive feed control is
running
Active tool (number and name)
Cut number
Current factor of the feed potentiometer in
percent
Active spindle load in percent
Reference load of the spindle
Current spindle speed
Current deviation of the speed
Current machining time
Line diagram, in which the current spindle load
and the value commanded by the TNC for the
feed-rate override are shown
2.4 Status Displays
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2.5Window Manager
The machine tool builder determines the scope of function
and behavior of the window manager. The machine tool
manual provides further information.
The TNC features the XFCE window manager. XFCE is a standard
application for UNIX-based operating systems, and is used to manage
graphical user interfaces. The following functions are possible with the
window manager:
Display a taskbar for switching between various applications (user
interfaces).
Manage an additional desktop, on which special applications from
2.5 Window Manager
your machine tool builder can run.
Control the focus between NC-software applications and those of
the machine tool builder.
The size and position of pop-up windows can be changed. It is also
possible to close, minimize and restore the pop-up windows.
The TNC shows a star in the upper left of the screen if an
application of the window manager or the window
manager itself has caused an error. In this case, switch to
the window manager and correct the problem. If required,
refer to your machine manual.
90 Introduction
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2.6Accessories: HEIDENHAIN 3-D
Touch Probes and Electronic
Handwheels
3-D touch probes
With the various HEIDENHAIN 3-D touch probe systems you can:
Automatically align workpieces
Quickly and precisely set datums
Measure the workpiece during program run
Measure and inspect tools
All of the touch probe functions are described in the
User’s Manual for Cycles. Please contact HEIDENHAIN if
you require a copy of this User’s Manual. ID: 670 388-xx.
TS 220, TS 640 and TS 440 touch trigger probes
These touch probes are particularly effective for automatic workpiece
alignment, datum setting and workpiece measurement. The TS 220
transmits the triggering signals to the TNC via cable and is a costeffective alternative for applications where digitizing is not frequently
required.
The TS 640 (see figure) and the smaller TS 440 feature infrared
transmission of the triggering signal to the TNC. This makes them
highly convenient for use on machines with automatic tool changers.
Principle of operation: HEIDENHAIN triggering touch probes feature a
wear resisting optical switch that generates an electrical signal as
soon as the stylus is deflected. This signal is transmitted to the
control, which stores the current position of the stylus as an actual
value.
HEIDENHAIN iTNC 53091
2.6 Accessories: HEIDENHAIN 3-D Touch Probes and Electronic Handwheels
Page 92
TT 140 tool touch probe for tool measurement
The TT 140 is a triggering 3-D touch probe for tool measurement and
inspection. Your TNC provides three cycles for this touch probe with
which you can measure the tool length and radius automatically either
with the spindle rotating or stopped. The TT 140 features a particularly
rugged design and a high degree of protection, which make it
insensitive to coolants and swarf. The triggering signal is generated by
a wear-resistant and highly reliable optical switch.
HR electronic handwheels
Electronic handwheels facilitate moving the axis slides precisely by
hand. A wide range of traverses per handwheel revolution is available.
Apart from the HR 130 and HR 150 integral handwheels,
HEIDENHAIN also offers the HR 410 and HR 420 portable
handwheels. You will find a detailed description of HR 420 in Chapter
14 of this manual (see “HR 420 electronic handwheel” on page 501).
2.6 Accessories: HEIDENHAIN 3-D Touch Probes and Electronic Handwheels
92 Introduction
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Programming:
Fundamentals, File
Management
Page 94
3.1Fundamentals
Position encoders and reference marks
The machine axes are equipped with position encoders that register
the positions of the machine table or tool. Linear axes are usually
equipped with linear encoders, rotary tables and tilting axes with angle
encoders.
When a machine axis moves, the corresponding position encoder
generates an electrical signal. The TNC evaluates this signal and
calculates the precise actual position of the machine axis.
3.1 Fundamentals
If there is a power interruption, the calculated position will no longer
correspond to the actual position of the machine slide. To recover this
association, incremental position encoders are provided with
reference marks. The scales of the position encoders contain one or
more reference marks that transmit a signal to the TNC when they are
crossed over. From that signal the TNC can re-establish the
assignment of displayed positions to machine positions. For linear
encoders with distance-coded reference marks the machine axes
need to move by no more than 20 mm, for angle encoders by no more
than 20°.
With absolute encoders, an absolute position value is transmitted to
the control immediately upon switch-on. In this way the assignment
of the actual position to the machine slide position is re-established
directly after switch-on.
Z
Y
X
X
MP
X (Z,Y)
Reference system
A reference system is required to define positions in a plane or in
space. The position data are always referenced to a predetermined
point and are described through coordinates.
The Cartesian coordinate system (a rectangular coordinate system) is
based on the three coordinate axes X, Y and Z. The axes are mutually
perpendicular and intersect at one point called the datum. A
coordinate identifies the distance from the datum in one of these
directions. A position in a plane is thus described through two
coordinates, and a position in space through three coordinates.
Coordinates that are referenced to the datum are referred to as
absolute coordinates. Relative coordinates are referenced to any other
known position (reference point) you define within the coordinate
system. Relative coordinate values are also referred to as incremental
coordinate values.
Z
Y
X
94 Programming: Fundamentals, File Management
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Reference system on milling machines
When using a milling machine, you orient tool movements to the
Cartesian coordinate system. The illustration at right shows how the
Cartesian coordinate system describes the machine axes. The figure
illustrates the right-hand rule for remembering the three axis
directions: the middle finger points in the positive direction of the tool
axis from the workpiece toward the tool (the Z axis), the thumb points
in the positive X direction, and the index finger in the positive Y
direction.
The iTNC 530 can control up to 9 axes. The axes U, V and W are
secondary linear axes parallel to the main axes X, Y and Z, respectively.
Rotary axes are designated as A, B and C. The illustration at lower right
shows the assignment of secondary axes and rotary axes to the main
axes.
+Y
+Z
+Y
+X
+Z
+X
3.1 Fundamentals
Z
V+
Y
W+
C+
B+
A+
X
U+
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Polar coordinates
If the production drawing is dimensioned in Cartesian coordinates, you
also write the part program using Cartesian coordinates. For parts
containing circular arcs or angles it is often simpler to give the
dimensions in polar coordinates.
While the Cartesian coordinates X, Y and Z are three-dimensional and
can describe points in space, polar coordinates are two-dimensional
and describe points in a plane. Polar coordinates have their datum at a
circle center (CC), or pole. A position in a plane can be clearly defined
by the:
Polar Radius, the distance from the circle center CC to the position,
3.1 Fundamentals
and the
Polar Angle, the value of the angle between the reference axis and
the line that connects the circle center CC with the position.
Setting the pole and the angle reference axis
The pole is set by entering two Cartesian coordinates in one of the
three planes. These coordinates also set the reference axis for the
polar angle PA.
Y
PR
PA
2
PA
3
10
PR
CC
PA
PR
1
0°
X
30
Coordinates of the pole
(plane)
X/Y+X
Y/Z+Y
Z/X+Z
Reference axis of the angle
Z
Y
Z
Y
X
Z
Y
X
X
96 Programming: Fundamentals, File Management
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Absolute and incremental workpiece positions
Absolute workpiece positions
Absolute coordinates are position coordinates that are referenced to
the datum of the coordinate system (origin). Each position on the
workpiece is uniquely defined by its absolute coordinates.
Example 1: Holes dimensioned in absolute coordinates
Hole 1Hole 2Hole 3
X = 10 mmX = 30 mmX = 50 mm
Y = 10 mmY = 20 mmY = 30 mm
Incremental workpiece positions
Incremental coordinates are referenced to the last programmed
nominal position of the tool, which serves as the relative (imaginary)
datum. When you write a part program in incremental coordinates,
you thus program the tool to move by the distance between the
previous and the subsequent nominal positions. Incremental
coordinates are therefore also referred to as chain dimensions.
To program a position in incremental coordinates, enter the function
“I” before the axis.
Example 2: Holes dimensioned in incremental coordinates
Absolute coordinates of hole 4
X = 10 mm
Y = 10 mm
Hole 5, with respect to 4Hole 6, with respect to 5
X = 20 mmX = 20 mm
Y = 10 mmY = 10 mm
Absolute and incremental polar coordinates
Absolute polar coordinates always refer to the pole and the reference
axis.
Incremental coordinates always refer to the last programmed nominal
position of the tool.
30
20
10
Y
3
2
1
3.1 Fundamentals
X
103050
Y
6
5
4
1010
10
10
20
20
Y
X
+IPR
PR
PA
PR
0°
+IPA
PR
10
+IPA
CC
X
30
HEIDENHAIN iTNC 53097
Page 98
Setting the datum
A production drawing identifies a certain form element of the
workpiece, usually a corner, as the absolute datum. When setting the
datum, you first align the workpiece along the machine axes, and then
move the tool in each axis to a defined position relative to the
workpiece. Set the display of the TNC either to zero or to a known
position value for each position. This establishes the reference system
for the workpiece, which will be used for the TNC display and your part
program.
If the production drawing is dimensioned in relative coordinates,
simply use the coordinate transformation cycles (see User’s Manual
3.1 Fundamentals
for Cycles, Cycles for Coordinate Transformation).
If the production drawing is not dimensioned for NC, set the datum at
a position or corner on the workpiece which is suitable for deducing
the dimensions of the remaining workpiece positions.
The fastest, easiest and most accurate way of setting the datum is by
using a 3-D touch probe from HEIDENHAIN. See “Setting the Datum
with a 3-D Touch Probe” in the Touch Probe Cycles User’s Manual.
Example
The workpiece drawing shows holes (1 to 4) whose dimensions are
shown with respect to an absolute datum with the coordinates X=0
Y=0. Holes 5 to 7 are dimensioned with respect to a relative datum
with the absolute coordinates X=450, Y=750. With the DATUM SHIFT
cycle you can temporarily set the datum to the position X=450, Y=750,
to be able to program holes 5 to 7 without further calculations.
750
320
Z
Y
MAX
X
MIN
Y
150
7
0
6
5
-150
0,1
±
300
34
0
21
325
450900
950
98 Programming: Fundamentals, File Management
X
Page 99
3.2Creating and Writing Programs
Organization of an NC program in HEIDENHAIN
Conversational
A part program consists of a series of program blocks. The figure at
right illustrates the elements of a block.
The TNC numbers the blocks in ascending sequence.
The first block of a program is identified by BEGIN PGM, the program
name and the active unit of measure.
The subsequent blocks contain information on:
The workpiece blank
Tool calls
Approaching a safe position
Feed rates and spindle speeds, as well as
Path contours, cycles and other functions
The last block of a program is identified by END PGM the program name
and the active unit of measure.
Block
10 L X+10 Y+5 R0 F100 M3
Path function
Block number
Words
Risk of collision!
After each tool call, HEIDENHAIN recommends always
traversing to a safe position, from which the TNC can
position the tool for machining without causing a collision!
Define the blank: BLK FORM
Immediately after initiating a new program, you define a cuboid
workpiece blank. If you wish to define the blank at a later stage, press
the SPEC FCT key and then the BLK FORM soft key. This definition is
needed for the TNC’s graphic simulation feature. The sides of the
workpiece blank lie parallel to the X, Y and Z axes and can be up to 100
000 mm long. The blank form is defined by two of its corner points:
MIN point: the smallest X, Y and Z coordinates of the blank form,
entered as absolute values
MAX point: the largest X, Y and Z coordinates of the blank form,
entered as absolute or incremental values
You only need to define the blank form if you wish to run
a graphic test for the program!
3.2 Creating and Writing Programs
HEIDENHAIN iTNC 53099
Page 100
Creating a new part program
You always enter a part program in the Programming and Editing
mode of operation. An example of program initiation:
Select the Programming and Editing operating mode.
Press the PGM MGT key to call the file manager.
Select the directory in which you wish to store the new program:
FILE NAME = OLD.H
Enter the new program name and confirm your entry
with the ENT key.
To select the unit of measure, press the MM or INCH
soft key. The TNC switches the screen layout and
3.2 Creating and Writing Programs
WORKING SPINDLE AXIS X/Y/Z?
initiates the dialog for defining the BLK FORM
(workpiece blank).
Enter spindle axis, e.g. Z
DEF BLK FORM: MIN CORNER?
Enter in sequence the X, Y and Z coordinates of the
MIN point and confirm each of your entries with the
ENT key.
DEF BLK FORM: MAX CORNER?
Enter in sequence the X, Y and Z coordinates of the
MAX point and confirm each of your entries with the
ENT key.
100 Programming: Fundamentals, File Management
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