HEIDENHAIN iTNC 530 User Manual

User’s Manual
ISO Programming

iTNC 530

NC Software
340 490-xx
340 491-xx
340 492-xx
340 493-xx
340 494-xx

English (en)
12/2005

Controls on the visual display unit

Split screen layout
Switch between machining or

programming modes
Soft keys for selecting functions in
screen

Switch the soft-key rows

Programming path movements

Approach/depart contour

FK free contour programming

Straight line

Circle center/pole for polar coordinates

Typewriter keyboard for entering letters and symbols

File names
Comments

ISO
programs

Machine operating modes

Manual Operation

Electronic Handwheel

smarT.NC

Positioning with Manual Data Input (MDI)

Program Run, Single Block

Program Run, Full Sequence

Programming modes

Programming and Editing

Test Run

Program/file management, TNC functions

Select or delete programs and files
External data transfer

Define program call, select datum and point tables

Select MOD function

Display help texts for NC error messages

Display all current error messages

Pocket calculator

Circular arc with center

Circular arc with radius

Circular arc with tangential connection

Chamfer/corner rounding

Tool functions

Enter and call tool length and radius

Cycles, subprograms and program section repeats

Program stop in a program

Define touch probe cycles

Define and call cycles
Enter and call labels for subprogramming and

program section repeats

Coordinate axes and numbers: Entering and editing

. . .

. . .

Q parameter programming/Q parameter status

Assume actual position or values from calculator

Skip dialog questions, delete words

Decimal point / Reverse algebraic sign
Polar coordinate input/

Incremental dimensions

Confirm entry and resume dialog

Select coordinate axes or
enter them into the program

Numbers

Moving the highlight, going directly to blocks, cycles
and parameter functions

Go directly to blocks, cycles and parameter

Move highlight

functions

Override control knobs for feed rate/spindle speed

100

100

1

50

50

1

50

0

F %

0

50

S %

Conclude block, exit entry
Clear numerical entry or clear TNC error message

Abort dialog, delete program section

Special functions / smarT.NC

Show special functions

smarT.NC: Select next tab on form

smarT.NC: Select first input field in next/
previous frame

TNC Model, Software and Features

This manual describes functions and features provided by TNCs as of
the following NC software numbers.

TNC model NC software number

iTNC 530 340 490-02

iTNC 530 E 340 491-02

iTNC 530 340 492-02

iTNC 530 E 340 493-02

iTNC 530 programming station 340 494-02

The suffix E indicates the export version of the TNC. The export
version of the TNC has the following limitations:

 Linear movement is possible in no more than 4 axes simultaneously.

The machine tool builder adapts the useable features of the TNC to his
machine by setting machine parameters. Some of the functions
described in this manual may not be among the features provided by
your machine tool.

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.

Touch Probe Cycles User’s Manual:

All of the touch probe functions are described in a separate
manual. Please contact HEIDENHAIN if you need a copy of
this User’s Manual. Part number: 533 189-xx

User documentation:

The new smarT.NC operating mode is described in a
separate Pilot. Please contact HEIDENHAIN if you require
a copy of this Pilot. Part number: 533 191-xx.

HEIDENHAIN iTNC 530 5

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 on rotary axes: M116

Tilting the machining plane (Cycle 19, PLANE function and 3-D ROT
soft key in the Manual operating 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 tilted axes

 M128: Maintaining the position of the tool tip when positioning

with tilted axes (TCPM)

 FUNCTION TCPM: Maintaining the position of the tool tip when

positioning with tilted axes (TCPM) in selectable modes

 M144: Compensating the machine’s kinematic configuration for

ACTUAL/NOMINAL positions at end of block

 Additional parameters finishing/roughing and tolerance for

rotary axes in Cycle 32 (G62)

 LN blocks (3-D compensation)

DXF Converter software option Description

Extract contours from DXF files (R12
format).

DCM software option Description

Function which monitors areas defined
by the machine manufacturer to
prevent collisions.

Additional dialog language software
option

Slovenian Page 581

6

Page 221

Page 83

Description

Feature content level (upgrade functions)

Along with software options, significant further improvements of the
TNC software are managed via the Feature Content Level. Functions
subject to the FCL are not available simply by updating the software
on your TNC. These 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-2 functions Description

3-D line graphics Page 131

Virtual tool axis Page 82

USB support of block devices (memory
sticks, hard disks, CD-ROM drives)

Filtering of externally created contours Conversational

Possibility of assigning different depths
to each subcontour in the contour
formula

DHCP dynamic IP-address
management

Touch-probe cycle for global setting of
touch-probe parameters

smarT.NC: Graphic support of block
scan

smarT.NC: Coordinate transformation smarT.NC Pilot

smarT.NC: PLANE function smarT.NC Pilot

Page 117

Programming User’s
Manual

Page 396

Page 552

Touch Probe Cycles
User’s Manual

smarT.NC Pilot

Location of use

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.

HEIDENHAIN iTNC 530 7

Functions new since the predecessor versions 340 422-xx and 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 (see “Operating panel” on page 41).

 The single-processor versions supports pointing devices (mice) via

the USB 2.0 interface.

 New CENTERING cycle (see “CENTERING (Cycle 240)” on page 274)
 New M function M150 for suppressing limit switch messages (see

“Suppress limit switch message: M150” on page 249)

 M128 is now also permitted for mid-program startup (see “Mid-

program startup (block scan)” on page 534).

 The number of available Q parameters was expanded to 2000 (see

“Programming: Q Parameters” on page 483).

 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 468).

 In the Q parameter functions D9 to D12 you can now also assign

label names as jump targets (see “If-Then Decisions with
Q Parameters” on page 492).

 The current time is also shown in the additional status display

window (see “General program information” on page 46).

 Several columns were added to the tool table (see “Tool table:

Standard tool data” on page 167).

 The Test Run can now also be stopped and continued within

machining cycles (see “Running a program test” on page 528).

8

Functions changed since the predecessor versions 340 422-xx and 340 423-xx

 The layouts of the status display and additional status display were

redesigned (see “Status Displays” on page 45).

 Software 340 490 no longer supports the small resolution in

combination with the BC 120 screen (see “Visual display unit” on
page 39).

 New key layout of the TE 530 B keyboard unit (see “Operating

panel” on page 41)

 The tool types available for selection in the tool table were increased

in preparation for future functions.

HEIDENHAIN iTNC 530 9

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 “Generating Contour
Programs from DXF Data (Software Option)” on page 221)

 3-D line graphics are now available in the Programming and Editing

operating mode (see “3-D Line Graphics (FCL 2 Function)” on page

131)

 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

82)

 The machine manufacturer can now define any areas on the

machine for collision monitoring (see “Dynamic Collision Monitoring
(Software Option)” on page 83)

 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 191)

 For contours which you connect via the contour formula, you can

now assign separate machining depths for each subcontour (see
“SL Cycles with Contour Formula” on page 396)

 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 117)

10

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 function FU

 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 62)

 The maximum number of contour elements for SL cycles was

increased to 8192, so that much more complex contours can be
machined (see “SL Cycles” on page 365)

 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 (Conversational Programming User's Manual).

 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

528)

 The design of the soft keys was revised completely

HEIDENHAIN iTNC 530 11

Contents

Introduction

1

Manual Operation and Setup

Positioning with Manual Data Input
(MDI)

Programming: Fundamentals of File
Management, Programming Aids

Programming: Tools

Programming: Programming Contours

Programming: Miscellaneous Functions

Programming: Cycles

Programming: Special Functions

Programming: Subprograms and
Program Section Repeats

Programming: Q Parameters

Test Run and Program Run

MOD Functions

2
3

4
5

6
7
8
9

10

11
12
13

Tables and Overviews

iTNC 530 with Windows 2000 (Option)

HEIDENHAIN iTNC 530 13

14
15

1 Introduction ..... 37

1.1 The iTNC 530 ..... 38

Programming: HEIDENHAIN conversational, smarT.NC and ISO formats ..... 38

Compatibility ..... 38

1.2 Visual Display Unit and Operating Panel ..... 39

Visual display unit ..... 39

Screen layout ..... 40

Operating panel ..... 41

1.3 Modes of Operation ..... 42

Manual operation and electronic handwheel ..... 42

Positioning with Manual Data Input (MDI) ..... 42

Programming and editing ..... 43

Test Run ..... 43

Program Run, Full Sequence and Program Run, Single Block ..... 44

1.4 Status Displays ..... 45

“General” status display ..... 45

Additional status displays ..... 46

1.5 Accessories: HEIDENHAIN 3-D Touch Probes and Electronic Handwheels ..... 50

3-D touch probes ..... 50

HR electronic handwheels ..... 51

HEIDENHAIN iTNC 530 15

2 Manual Operation and Setup ..... 53

2.1 Switch-On, Switch-Off ..... 54

Switch-on ..... 54

Switch-off ..... 56

2.2 Moving the Machine Axes ..... 57

Note ..... 57

To traverse with the machine axis direction buttons: ..... 57

Incremental jog positioning ..... 58

Traversing with the HR 410 electronic handwheel ..... 59

HR 420 electronic handwheel ..... 60

2.3 Spindle Speed S, Feed Rate F and Miscellaneous Functions M ..... 66

Function ..... 66

Entering values ..... 66

Changing the spindle speed and feed rate ..... 67

2.4 Datum Setting (Without a 3-D Touch Probe) ..... 68

Note ..... 68

Preparation ..... 68

Datum setting with axis keys ..... 69

Datum management with the preset table ..... 70

2.5 Tilting the Working Plane (Software Option 1) ..... 77

Application, function ..... 77

Traversing the reference points in tilted axes ..... 78

Setting the datum in a tilted coordinate system ..... 79

Datum setting on machines with rotary tables ..... 79

Datum setting on machines with spindle-head changing systems ..... 79

Position display in a tilted system ..... 80

Limitations on working with the tilting function ..... 80

Activating manual tilting ..... 81

Setting the current tool-axis direction as the active machining direction (FCL 2 function) ..... 82

2.6 Dynamic Collision Monitoring (Software Option) ..... 83

Function ..... 83

Collision monitoring in the manual operating modes ..... 83

Collision monitoring in Automatic operation ..... 85

16

3 Positioning with Manual Data Input (MDI) ..... 87

3.1 Programming and Executing Simple Machining Operations ..... 88

Positioning with Manual Data Input (MDI) ..... 88

Protecting and erasing programs in $MDI ..... 91

HEIDENHAIN iTNC 530 17

4 Fundamentals of NC, File Management, Programming Aids, Pallet Management ..... 93

4.1 Fundamentals ..... 94

Position encoders and reference marks ..... 94

Reference system ..... 94

Reference system on milling machines ..... 95

Polar coordinates ..... 96

Absolute and incremental workpiece positions ..... 97

Setting the datum ..... 98

4.2 File Management: Fundamentals ..... 99

Files ..... 99

Data backup ..... 100

4.3 Working with the File Manager ..... 101

Directories ..... 101

Paths ..... 101

Overview: Functions of the file manager ..... 102

Calling the file manager ..... 103

Selecting drives, directories and files ..... 104

Creating a new directory (only possible on the drive TNC:\) ..... 106

Copying a single file ..... 107

Copying a directory ..... 109

Choosing one of the last files selected ..... 109

Deleting a file ..... 110

Deleting a directory ..... 110

Tagging files ..... 111

Renaming a file ..... 112

Additional functions ..... 112

Data transfer to or from an external data medium ..... 113

Copying files into another directory ..... 115

The TNC in a network ..... 116

USB devices on the TNC (FCL 2 function) ..... 117

4.4 Creating and Writing Programs ..... 118

Organization of an NC program in ISO format ..... 118

Define blank form: G30/G31 ..... 118

Creating a new part program ..... 119

Programming tool movements ..... 121

Actual position capture ..... 122

Editing a program ..... 123

The TNC search function ..... 127

18

4.5 Interactive Programming Graphics ..... 129

Generating / Not generating graphics during programming: ..... 129

Generating a graphic for an existing program ..... 129

Block number display ON/OFF ..... 130

Erasing the graphic ..... 130

Magnifying or reducing a detail ..... 130

4.6 3-D Line Graphics (FCL 2 Function) ..... 131

Function ..... 131

Functions of the 3-D line graphics ..... 132

Highlighting NC blocks in the graphics ..... 134

Block number display ON/OFF ..... 134

Erasing the graphic ..... 134

4.7 Structuring Programs ..... 135

Definition and applications ..... 135

Displaying the program structure window / Changing the active window ..... 135

Inserting a structuring block in the (left) program window ..... 135

Selecting blocks in the program structure window ..... 135

4.8 Adding Comments ..... 136

Function ..... 136

Entering comments during programming ..... 136

Inserting comments after program entry ..... 136

Entering a comment in a separate block ..... 136

Functions for editing of the comment ..... 136

4.9 Creating Text Files ..... 137

Function ..... 137

Opening and exiting text files ..... 137

Editing texts ..... 138

Deleting and inserting characters, words and lines ..... 139

Editing text blocks ..... 140

Finding text sections ..... 141

HEIDENHAIN iTNC 530 19

4.10 Integrated Pocket Calculator ..... 142

Operation ..... 142

4.11 Immediate Help for NC Error Messages ..... 143

Displaying error messages ..... 143

Display HELP ..... 143

4.12 List of All Current Error Messages ..... 144

Function ..... 144

Show error list ..... 144

Window contents ..... 145

4.13 Pallet Management ..... 146

Function ..... 146

Selecting a pallet table ..... 148

Leaving the pallet file ..... 148

Executing the pallet file ..... 149

4.14 Pallet Operation with Tool-Oriented Machining ..... 150

Function ..... 150

Selecting a pallet file ..... 154

Setting up the pallet file with the entry form ..... 155

Sequence of tool-oriented machining ..... 159

Leaving the pallet file ..... 160

Executing the pallet file ..... 160

20

5 Programming: Tools ..... 163

5.1 Entering Tool-Related Data ..... 164

Feed rate F ..... 164

Spindle speed S ..... 164

5.2 Tool Data ..... 165

Requirements for tool compensation ..... 165

Tool numbers and tool names ..... 165

Tool length L ..... 165

Tool radius R ..... 166

Delta values for lengths and radii ..... 166

Entering tool data into the program ..... 166

Entering tool data in tables ..... 167

Using an external PC to overwrite individual tool data ..... 173

Pocket table for tool changer ..... 174

Calling tool data ..... 177

Tool change ..... 178

5.3 Tool Compensation ..... 180

Introduction ..... 180

Tool length compensation ..... 180

Tool radius compensation ..... 181

5.4 Peripheral Milling: 3-D Radius Compensation with Workpiece Orientation ..... 184

Function ..... 184

5.5 Working with Cutting Data Tables ..... 185

Note ..... 185

Applications ..... 185

Table for workpiece materials ..... 186

Table for tool cutting materials ..... 187

Table for cutting data ..... 187

Data required for the tool table ..... 188

Working with automatic speed / feed rate calculation ..... 189

Changing the table structure ..... 190

Switching between table and form view ..... 191

Data transfer from cutting data tables ..... 192

Configuration file TNC.SYS ..... 192

HEIDENHAIN iTNC 530 21

6 Programming: Programming Contours ..... 193

6.1 Tool Movements ..... 194

Path functions ..... 194

Miscellaneous functions M ..... 194

Subprograms and program section repeats ..... 194

Programming with Q parameters ..... 194

6.2 Fundamentals of Path Functions ..... 195

Programming tool movements for workpiece machining ..... 195

6.3 Contour Approach and Departure ..... 197

Starting point and end point ..... 197

Tangential approach and departure ..... 199

6.4 Path Contours—Cartesian Coordinates ..... 201

Overview of path functions ..... 201

Straight line at rapid traverse G00

Straight line with feed rate G01 F. . . ..... 202

Inserting a chamfer between two straight lines ..... 203

Rounding corners G25 ..... 204

Circle center I, J ..... 205

Circular path G02/G03/G05 around circle center I, J ..... 206

Circular path G02/G03/G05 with defined radius ..... 207

Circular path G06 with tangential approach ..... 209

6.5 Path Contours—Polar Coordinates ..... 214

Overview of path functions with polar coordinates ..... 214

Zero point for polar coordinates: pole I, J ..... 214

Straight line at rapid traverse G10

Straight line with feed rate G11 F . . . ..... 215

Circular path G12/G13/G15 around pole I, J ..... 215

Circular arc G16 with tangential connection ..... 216

Helical interpolation ..... 216

6.6 Generating Contour Programs from DXF Data (Software Option) ..... 221

Function ..... 221

Opening a DXF file ..... 221

Basic settings ..... 222

Layer settings ..... 223

Datum specifying ..... 224

Contour selection, saving a contour program ..... 226

Zoom function ..... 227

22

7 Programming: Miscellaneous Functions ..... 229

7.1 Entering Miscellaneous Functions M and G38 ..... 230

Fundamentals ..... 230

7.2 Miscellaneous Functions for Program Run Control, Spindle and Coolant ..... 231

Overview ..... 231

7.3 Miscellaneous Functions for Coordinate Data ..... 232

Programming machine-referenced coordinates: M91/M92 ..... 232

Activating the most recently entered datum: M104 ..... 234

Moving to positions in a non-tilted coordinate system with a tilted working plane: M130 ..... 234

7.4 Miscellaneous Functions for Contouring Behavior ..... 235

Smoothing corners: M90 ..... 235

Insert rounding arc between straight lines: M112 ..... 236

Do not include points when executing non-compensated line blocks: M124 ..... 236

Machining small contour steps: M97 ..... 237

Machining open contours: M98 ..... 239

Feed rate factor for plunging movements: M103 ..... 240

Feed rate in millimeters per spindle revolution: M136 ..... 241

Feed rate for circular arcs: M109/M110/M111 ..... 242

Calculating the radius-compensated path in advance (LOOK AHEAD): M120 ..... 242

Superimposing handwheel positioning during program run: M118 ..... 244

Retraction from the contour in the tool-axis direction: M140 ..... 245

Suppressing touch probe monitoring: M141 ..... 246

Delete modal program information: M142 ..... 247

Delete basic rotation: M143 ..... 247

Automatically retract tool from the contour at an NC stop: M148 ..... 248

Suppress limit switch message: M150 ..... 249

7.5 Miscellaneous Functions for Rotary Axes ..... 250

Feed rate in mm/min on rotary axes A, B, C: M116 (software option 1) ..... 250

Shorter-path traverse of rotary axes: M126 ..... 251

Reducing display of a rotary axis to a value less than 360°: M94 ..... 252

Automatic compensation of machine geometry when working with tilted axes: M114 (software option 2) ..... 253

Maintaining the position of the tool tip when positioning with tilted axes (TCPM): M128 (software

option 2) ..... 254

Exact stop at corners with nontangential transitions: M134 ..... 256

Selecting tilting axes: M138 ..... 256

Compensating the machine’s kinematic configuration for ACTUAL/NOMINAL positions at end of block: M144

(software option 2) ..... 257

HEIDENHAIN iTNC 530 23

7.6 Miscellaneous Functions for Laser Cutting Machines ..... 258

Principle ..... 258

Output the programmed voltage directly: M200 ..... 258

Output voltage as a function of distance: M201 ..... 258

Output voltage as a function of speed: M202 ..... 259

Output voltage as a function of time (time-dependent ramp): M203 ..... 259

Output voltage as a function of time (time-dependent pulse): M204 ..... 259

24

8 Programming: Cycles ..... 261

8.1 Working with Cycles ..... 262

Machine-specific cycles ..... 262

Defining a cycle using soft keys ..... 263

Calling a cycle ..... 265

Calling a cycle with G79 (CYCL CALL) ..... 265

Calling a cycle with G79 PAT (CYCL CALL PAT) ..... 265

Calling a cycle with G79:G01 (CYCL CALL POS) ..... 266

Calling a cycle with M99/89 ..... 266

Working with the secondary axes U/V/W ..... 267

8.2 Point Tables ..... 268

Function ..... 268

Creating a point table ..... 268

Hiding single points from the machining process ..... 269

Selecting a point table in the program ..... 269

Calling a cycle in connection with point tables ..... 270

8.3 Cycles for Drilling, Tapping and Thread Milling ..... 272

Overview ..... 272

CENTERING (Cycle 240) ..... 274

DRILLING (Cycle G200) ..... 276

REAMING (Cycle G201) ..... 278

BORING (Cycle G202) ..... 280

UNIVERSAL DRILLING (Cycle G203) ..... 282

BACK BORING (Cycle G204) ..... 284

UNIVERSAL PECKING (Cycle G205) ..... 287

BORE MILLING (Cycle G208) ..... 290

TAPPING NEW with floating tap holder (Cycle G206) ..... 292

RIGID TAPPING NEW (Cycle G207) ..... 294

TAPPING WITH CHIP BREAKING (Cycle G209) ..... 296

Fundamentals of thread milling ..... 298

THREAD MILLING (Cycle G262) ..... 300

THREAD MILLING/COUNTERSINKING (Cycle G263) ..... 302

THREAD DRILLING/MILLING (Cycle G264) ..... 306

HELICAL THREAD DRILLING/MILLING (Cycle G265) ..... 310

OUTSIDE THREAD MILLING (Cycle G267) ..... 314

HEIDENHAIN iTNC 530 25

8.4 Cycles for Milling Pockets, Studs and Slots ..... 323

Overview ..... 323

RECTANGULAR POCKET (Cycle G251) ..... 324

CIRCULAR POCKET (Cycle G252) ..... 329

SLOT MILLING (Cycle 253) ..... 333

CIRCULAR SLOT (Cycle 254) ..... 338

POCKET FINISHING (Cycle G212) ..... 343

STUD FINISHING (Cycle G213) ..... 345

CIRCULAR POCKET FINISHING (Cycle G214) ..... 347

CIRCULAR STUD FINISHING (Cycle G215) ..... 349

SLOT with reciprocating plunge-cut (Cycle G210) ..... 351

CIRCULAR SLOT with reciprocating plunge-cut (Cycle G211) ..... 353

8.5 Cycles for Machining Point Patterns ..... 358

Overview ..... 358

CIRCULAR PATTERN (Cycle G220) ..... 359

LINEAR PATTERN (Cycle G221) ..... 361

8.6 SL Cycles ..... 365

Fundamentals ..... 365

Overview of SL Cycles ..... 367

CONTOUR GEOMETRY (Cycle G37) ..... 368

Overlapping contours ..... 369

CONTOUR DATA (Cycle G120) ..... 372

PILOT DRILLING (Cycle G121) ..... 373

ROUGH-OUT (Cycle G122) ..... 374

FLOOR FINISHING (Cycle G123) ..... 375

SIDE FINISHING (Cycle G124) ..... 376

CONTOUR TRAIN (Cycle G125) ..... 377

CYLINDER SURFACE (Cycle G127, software option 1) ..... 379

CYLINDER SURFACE slot milling (Cycle G128, software option 1) ..... 381

CYLINDER SURFACE ridge milling (Cycle G129, software option 1) ..... 383

CYLINDER SURFACE outside contour milling (Cycle G139, software option 1) ..... 385

8.7 SL Cycles with Contour Formula ..... 396

Fundamentals ..... 396

Selecting a program with contour definitions ..... 397

Defining contour descriptions ..... 397

Entering a contour formula ..... 398

Overlapping contours ..... 399

Contour machining with SL Cycles ..... 401

26

8.8 Cycles for Multipass Milling ..... 405

Overview ..... 405

RUN 3-D DATA (Cycle G60) ..... 406

MULTIPASS MILLING (Cycle G230) ..... 407

RULED SURFACE (Cycle G231) ..... 409

FACE MILLING (Cycle 232) ..... 412

8.9 Coordinate Transformation Cycles ..... 419

Overview ..... 419

Effect of coordinate transformations ..... 419

DATUM SHIFT (Cycle G54) ..... 420

DATUM SHIFT with datum tables (Cycle G53) ..... 421

DATUM SETTING (Cycle G247) ..... 425

MIRROR IMAGE (Cycle G28) ..... 426

ROTATION (Cycle G73) ..... 428

SCALING FACTOR (Cycle G72) ..... 429

WORKING PLANE (Cycle G80, software option1) ..... 430

8.10 Special Cycles ..... 437

DWELL TIME (Cycle G04) ..... 437

PROGRAM CALL (Cycle G39) ..... 438

ORIENTED SPINDLE STOP (Cycle G36) ..... 439

TOLERANCE (Cycle G62) ..... 440

HEIDENHAIN iTNC 530 27

9 Programming: Special Functions ..... 443

9.1 The PLANE Function: Tilting the Working Plane (Software Option 1) ..... 444

Introduction ..... 444

Define the PLANE function ..... 446

Position display ..... 446

Reset the PLANE function ..... 447

9.2 Defining the Machining Plane with Space Angles: PLANE SPATIAL ..... 448

Function ..... 448

Input parameters ..... 449

9.3 Defining the Machining Plane with Projection Angles: PROJECTED PLANE ..... 450

Function ..... 450

Input parameters ..... 451

9.4 Defining the Machining Plane with Euler Angles: PLANE EULER ..... 452

Function ..... 452

Input parameters ..... 453

9.5 Defining the Machining Plane with Two Vectors: VECTOR PLANE ..... 454

Function ..... 454

Input parameters ..... 455

9.6 Defining the Machining Plane via Three Points: POINTS PLANE ..... 456

Function ..... 456

Input parameters ..... 457

9.7 Defining the Machining Plane with a Single, Incremental Space Angle: PLANE RELATIVE ..... 458

Function ..... 458

Input parameters ..... 459

Abbreviations used ..... 459

9.8 Specifying the Positioning Behavior of the PLANE Function ..... 460

Overview ..... 460

Automatic positioning: MOVE/TURN/STAY (entry is mandatory) ..... 461

Selection of alternate tilting possibilities: SEQ +/– (entry optional) ..... 464

Selecting the type of transformation (entry optional) ..... 465

9.9 Inclined-Tool Machining in the Tilted Plane ..... 466

Function ..... 466

Inclined-tool machining via incremental traverse of a rotary axis ..... 466

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10 Programming: Subprograms and Program Section Repeats ..... 467

10.1 Labeling Subprograms and Program Section Repeats ..... 468

Labels ..... 468

10.2 Subprograms ..... 469

Operating sequence ..... 469

Programming notes ..... 469

Programming a subprogram ..... 469

Calling a subprogram ..... 469

10.3 Program Section Repeats ..... 470

Label G98 ..... 470

Operating sequence ..... 470

Programming notes ..... 470

Programming a program section repeat ..... 470

Calling a program section repeat ..... 470

10.4 Separate Program as Subprogram ..... 471

Operating sequence ..... 471

Programming notes ..... 471

Calling any program as a subprogram ..... 472

10.5 Nesting ..... 473

Types of nesting ..... 473

Nesting depth ..... 473

Subprogram within a subprogram ..... 473

Repeating program section repeats ..... 474

Repeating a subprogram ..... 475

HEIDENHAIN iTNC 530 29

11 Programming: Q Parameters ..... 483

11.1 Principle and Overview ..... 484

Programming notes ..... 485

Calling Q parameter functions ..... 485

11.2 Part Families—Q Parameters in Place of Numerical Values ..... 486

Example NC blocks ..... 486

Example ..... 486

11.3 Describing Contours through Mathematical Operations ..... 487

Function ..... 487

Overview ..... 487

Programming fundamental operations ..... 488

11.4 Trigonometric Functions ..... 490

Definitions ..... 490

Programming trigonometric functions ..... 491

11.5 If-Then Decisions with Q Parameters ..... 492

Function ..... 492

Unconditional jumps ..... 492

Programming If-Then decisions ..... 492

Abbreviations used: ..... 493

11.6 Checking and Changing Q Parameters ..... 494

Procedure ..... 494

11.7 Additional Functions ..... 495

Overview ..... 495

D14: ERROR: Output error messages ..... 496

D15: PRINT: Output of texts or Q parameter values ..... 498

D19: PLC: Transfer values to the PLC ..... 498

11.8 Entering Formulas Directly ..... 499

Entering formulas ..... 499

Rules for formulas ..... 501

Programming example ..... 502

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