heidenhain TNC 620 Users Manual

User’s Manual HEIDENHAIN Conversational Format

TNC 620

NC Software 340 560-01 340 561-01 340 564-01

English (en) 9/2008

Controls on the visual display unit

Split screen layout Switch between machining or

programming modes Soft keys for selecting functions on

screen Shift between soft-key rows

Machine operating modes

Manual Operation

Electronic Handwheel

Positioning with Manual Data Input

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 functions

Display help text for NC error messages

Display all current error messages

Show pocket calculator

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

Go directly to blocks, cycles and parameter functions

Move highlight

Override control knobs for feed rate/spindle speed

100

S %

100

F %

Programming path movements

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

Tool functions

Enter and call tool length and radius

Cycles, subprograms and program section repeats

Define and call cycles Enter and call labels for subprogramming and

program section repeats

Program stop in a program

Define touch probe cycles

Coordinate axes and numbers: Entering and editing

. . .

Decimal point / Reverse algebraic sign Polar coordinate input/

Select coordinate axes or enter them into the program

Numbers

Incremental dimensions

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

Delete individual characters

Special functions / smarT.NC

Show special functions

No function

Up/down one dialog box or button

HEIDENHAIN TNC 620 3

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

TNC 620 340 560-01

TNC 620 E 340 561-01

TNC 620 programming station 340 564-01

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 functions that may not be available on your machine include:

 Probing function for the 3-D touch probe  Rigid tapping  Returning to the contour after an interruption

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. ID: 661 891-20

HEIDENHAIN TNC 620 5

Software options

The TNC 620 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:

Hardware options

Additional axis for 4 axes and closed-loop spindle

Additional axis for 5 axes and closed-loop spindle

Software option 1 (option number #08) Cylinder surface interpolation (Cycles 27, 28 and 29)

Feed rate in mm/min on rotary axes: M116

Tilting the machining plane (Cycle 19 and 3-D ROT soft key in the manual operating mode)

Circle in 3 axes with tilted working plane

Software option 2 (option number #09) Block processing time 1.5 ms instead of 6 ms

5-axis interpolation

3-D machining:

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

with tilted axes (TCPM)

 M144: Compensating the machine’s kinematics configuration for

ACTUAL/NOMINAL positions at end of block

 Additional finishing/roughing and tolerance for rotary axes

parameters in Cycle 32 (G62)

 LN blocks (3-D compensation)

Touch probe function (option number #17) Touch probe cycles

 Compensation of tool misalignment in manual mode  Compensation of tool misalignment in automatic mode

 Datum setting in manual mode  Datum setting in automatic mode

 Automatic workpiece measurement  Automatic tool measurement

Advanced programming features (option number #19) FK free contour programming

 Programming in HEIDENHAIN conversational format with

graphic support for workpiece drawings not dimensioned for NC

Machining cycles

 Peck drilling, reaming, boring, counterboring, centering

(Cycles 201 to 205, 208, 240)

 Milling of internal and external threads (Cycles 262 to 265, 267)  Finishing of rectangular and circular pockets and studs

(Cycles 212 to 215)

 Clearing level and oblique surfaces (Cycles 230 to 232)  Straight slots and circular slots (Cycles 210, 211)  Linear and circular point patterns (Cycles 220, 221)  Contour train, contour pocket—also with contour-parallel

machining (Cycles 20 to 25)

 OEM cycles (special cycles developed by the machine tool

builder) can be integrated

Advanced graphic features (option number #20) Verification graphics, machining graphics

 Plan view  Projection in three planes  3-D view

Software option 3(option number #21) Tool compensation

 M120: Radius-compensated contour look-ahead for up to 99

blocks

3-D machining

 M118 Superimpose handwheel positioning during program run

Pallet management (option number #22) Pallet management

HEIDENHAIN DNC (option number #18) Communication with external PC applications over COM

component

HEIDENHAIN TNC 620 7

Display step (option number #23) Input resolution and display step:

 For linear axes to 0.01 µm  Angular axes to 0.000 01°

Double speed (option number #49) Double-speed control loops are used primarily for high-speed

spindles as well as linear motors and torque motors

Feature Content Level (upgrade functions)

Along with software options, significant further improvements of the TNC software are managed via the Feature Content Level 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.

Intended place of operation

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.

Legal information

This product uses open source software. Further information is available on the control under

 Programming and Editing operating mode  MOD function  LICENSE INFO soft key

Contents

Introduction

Manual Operation and Setup

Positioning with Manual Data Input

Programming: Fundamentals of File Management, Programming Aids

Programming: Tools

Programming: Programming Contours

Programming: Miscellaneous Functions

Programming: Cycles

Programming: Subprograms and Program Section Repeats

Programming: Q Parameters

Test Run and Program Run

MOD Functions

Technical Information

2 3 4 5 6 7 8 9

11 12 13

HEIDENHAIN TNC 620 9

1 Introduction ..... 29

1.1 The TNC 620 ..... 30

Programming: HEIDENHAIN conversational format ..... 30

Compatibility ..... 30

1.2 Visual Display Unit and Keyboard ..... 31

Visual display unit ..... 31

Sets the screen layout ..... 32

Operating panel ..... 33

1.3 Operating Modes ..... 34

Manual Operation and Electronic Handwheel ..... 34

Positioning with Manual Data Input ..... 34

Programming and Editing ..... 35

Test Run ..... 35

Program Run, Full Sequence and Program Run, Single Block ..... 36

1.4 Status Displays ..... 37

“General” status display ..... 37

Additional status displays ..... 39

1.5 Accessories: HEIDENHAIN 3-D Touch Probes and Electronic Handwheels ..... 42

3-D touch probes ..... 42

TT 140 tool touch probe for tool measurement ..... 43

HR electronic handwheels ..... 43

HEIDENHAIN TNC 620 11

2 Manual Operation and Setup ..... 45

2.1 Switch-On, Switch-Off ..... 46

Switch-on ..... 46

Switch-off ..... 48

2.2 Traversing the Machine Axes ..... 49

Note ..... 49

To traverse with the machine axis direction buttons: ..... 49

Incremental jog positioning ..... 50

Traversing with the HR 410 electronic handwheel ..... 51

2.3 Spindle Speed S, Feed Rate F and Miscellaneous Functions M ..... 52

Function ..... 52

Entering values ..... 52

Changing the spindle speed and feed rate ..... 53

2.4 Datum Setting (Without a 3-D Touch Probe) ..... 54

Note ..... 54

Preparation ..... 54

Datum setting with axis keys ..... 55

Datum management with the preset table ..... 56

2.5 Tilting the Working Plane (Software Option 1) ..... 62

Application, function ..... 62

Traversing the reference points in tilted axes ..... 64

Position display in a tilted system ..... 64

Limitations on working with the tilting function ..... 64

Activating manual tilting ..... 65

3 Positioning with Manual Data Input (MDI) ..... 67

3.1 Programming and Executing Simple Machining Operations ..... 68

Positioning with Manual Data Input (MDI) ..... 68

Protecting and erasing programs in $MDI ..... 71

HEIDENHAIN TNC 620 13

4 Programming: Fundamentals of NC, File Management, Programming Aids ..... 73

4.1 Fundamentals ..... 74

Position encoders and reference marks ..... 74

Reference system ..... 74

Reference system on milling machines ..... 75

Designation of the axes on milling machines ..... 75

Polar coordinates ..... 76

Absolute and incremental workpiece positions ..... 77

Setting the datum ..... 78

4.2 File Management: Fundamentals ..... 79

Files ..... 79

Screen keypad ..... 81

Data backup ..... 81

4.3 Working with the File Manager ..... 82

Directories ..... 82

Paths ..... 82

Overview: Functions of the file manager ..... 83

Calling the file manager ..... 84

Selecting drives, directories and files ..... 85

Creating a new directory ..... 86

Copying a single file ..... 87

Copying a directory ..... 87

Choosing one of the last 10 files selected ..... 88

Deleting a file ..... 88

Deleting a directory ..... 88

Marking files ..... 89

Renaming a file ..... 90

File sorting ..... 90

Additional functions ..... 90

Data transfer to or from an external data medium ..... 91

Copying files into another directory ..... 93

The TNC in a network ..... 94

USB devices on the TNC ..... 95

4.4 Creating and Writing Programs ..... 96

Organization of an NC program in HEIDENHAIN conversational format ..... 96

Define the blank: BLK FORM ..... 96

Creating a new part program ..... 97

Programming tool movements in conversational format ..... 99

Actual position capture ..... 100

Editing a program ..... 101

The TNC search function ..... 105

4.5 Interactive Programming Graphics ..... 107

Generating / Not generating graphics during programming ..... 107

Generating a graphic for an existing program ..... 107

Block number display ON/OFF ..... 108

Erasing the graphic ..... 108

Magnifying or reducing a detail ..... 108

4.6 Structuring Programs ..... 109

Definition and applications ..... 109

Displaying the program structure window / Changing the active window ..... 109

Inserting a structuring block in the (left) program window ..... 109

Selecting blocks in the program structure window ..... 109

4.7 Adding Comments ..... 110

Function ..... 110

Adding a comment line ..... 110

Functions for editing of the comment ..... 110

4.8 Integrated Pocket Calculator ..... 111

Operation ..... 111

4.9 Error Messages ..... 113

Display of errors ..... 113

Open the error window ..... 113

Close the error window ..... 113

Detailed error messages ..... 114

INTERNAL INFO soft key ..... 114

Clearing errors ..... 115

Error log ..... 115

Keystroke log ..... 116

Informational texts ..... 117

Saving service files ..... 117

HEIDENHAIN TNC 620 15

5 Programming: Tools ..... 119

5.1 Entering Tool-Related Data ..... 120

Feed rate F ..... 120

Spindle speed S ..... 121

5.2 Tool Data ..... 122

Requirements for tool compensation ..... 122

Tool numbers and tool names ..... 122

Tool length L ..... 122

Tool radius R ..... 123

Delta values for lengths and radii ..... 123

Entering tool data into the program ..... 123

Entering tool data in the table ..... 124

Pocket table for tool changer ..... 130

Calling tool data ..... 133

5.3 Tool Compensation ..... 134

Introduction ..... 134

Tool length compensation ..... 134

Tool radius compensation ..... 135

5.4 Three-Dimensional Tool Compensation (Software Option 2) ..... 138

Introduction ..... 138

Definition of a normalized vector ..... 139

Permissible tool forms ..... 140

Using other tools: Delta values ..... 140

3-D compensation without tool orientation ..... 140

Face milling: 3-D compensation with and without tool orientation ..... 141

Peripheral milling: 3-D radius compensation with workpiece orientation ..... 142

6 Programming: Programming Contours ..... 145

6.1 Tool Movements ..... 146

Path functions ..... 146

FK free contour programming (Advanced programming features software option) ..... 146

Miscellaneous functions M ..... 146

Subprograms and program section repeats ..... 146

Programming with Q parameters ..... 146

6.2 Fundamentals of Path Functions ..... 147

Programming tool movements for workpiece machining ..... 147

6.3 Contour Approach and Departure ..... 150

Overview: Types of paths for contour approach and departure ..... 150

Important positions for approach and departure ..... 151

Approaching on a straight line with tangential connection: APPR LT ..... 153

Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 153

Approaching on a circular path with tangential connection: APPR CT ..... 154

Approaching on a circular arc with tangential connection from a straight line to the contour: APPR LCT ..... 155

Departing on a straight line with tangential connection: DEP LT ..... 156

Departing on a straight line perpendicular to the last contour point: DEP LN ..... 156

Departure on a circular path with tangential connection: DEP CT ..... 157

Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT ..... 157

6.4 Path Contours—Cartesian Coordinates ..... 158

Overview of path functions ..... 158

Straight line L ..... 159

Inserting a chamfer CHF between two straight lines ..... 160

Corner rounding RND ..... 161

Circle center CC ..... 162

Circular path C around circle center CC ..... 163

Circular path CR with defined radius ..... 164

Circular path CT with tangential connection ..... 166

6.5 Path Contours—Polar Coordinates ..... 171

Overview ..... 171

Polar coordinate origin: Pole CC ..... 172

Straight line LP ..... 172

Circular path CP around pole CC ..... 173

Circular path CTP with tangential connection ..... 173

Helical interpolation ..... 174

HEIDENHAIN TNC 620 17

6.6 Path Contours—FK Free Contour Programming (Software Option) ..... 178

Fundamentals ..... 178

Graphics during FK programming ..... 180

Initiating the FK dialog ..... 181

Pole for FK programming ..... 181

Free programming of straight lines ..... 182

Free programming of circular arcs ..... 182

Input possibilities ..... 183

Auxiliary points ..... 186

Relative data ..... 187

7 Programming: Miscellaneous Functions ..... 195

7.1 Entering Miscellaneous Functions M and STOP ..... 196

Fundamentals ..... 196

7.2 Miscellaneous Functions for Program Run Control, Spindle and Coolant ..... 198

Overview ..... 198

7.3 Miscellaneous Functions for Coordinate Data ..... 199

Programming machine-referenced coordinates: M91/M92 ..... 199

Moving to positions in a non-tilted coordinate system with a tilted working plane: M130 ..... 201

7.4 Miscellaneous Functions for Contouring Behavior ..... 202

Machining small contour steps: M97 ..... 202

Machining open contours: M98 ..... 204

Feed rate for circular arcs: M109/M110/M111 ..... 205

Calculating the radius-compensated path in advance (LOOK AHEAD): M120 (software option 3) ..... 206

Superimposing handwheel positioning during program run: M118 (software option 3) ..... 208

Retraction from the contour in the tool-axis direction: M140 ..... 209

Suppressing touch probe monitoring: M141 ..... 210

Delete basic rotation: M143 ..... 210

Automatically retract tool from the contour at an NC stop: M148 ..... 211

7.5 Miscellaneous Functions for Rotary Axes ..... 212

Feed rate in mm/min on rotary axes A, B, C: M116 (software option 1) ..... 212

Shorter-path traverse of rotary axes: M126 ..... 213

Reducing display of a rotary axis to a value less than 360°: M94 ..... 214

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

option 2) ..... 215

HEIDENHAIN TNC 620 19

8 Programming: Cycles ..... 217

8.1 Working with Cycles ..... 218

Machine-specific cycles (Advanced programming features software option) ..... 218

Defining a cycle using soft keys ..... 219

Defining a cycle using the GOTO function ..... 219

Cycles Overview ..... 220

Calling cycles ..... 221

8.2 Cycles for Drilling, Tapping and Thread Milling ..... 223

Overview ..... 223

CENTERING (Cycle 240, Advanced programming features software option) ..... 225

DRILLING (Cycle 200) ..... 227

REAMING (Cycle 201, Advanced programming features software option) ..... 229

BORING (Cycle 202, Advanced programming features software option) ..... 231

UNIVERSAL DRILLING (Cycle 203, Advanced programming features software option) ..... 233

BACK BORING (Cycle 204, Advanced programming features software option) ..... 235

UNIVERSAL PECKING (Cycle 205, Advanced programming features software option) ..... 237

BORE MILLING (Cycle 208, Advanced programming features software option) ..... 240

TAPPING NEW with floating tap holder (Cycle 206) ..... 242

RIGID TAPPING without a floating tap holder NEW (Cycle 207) ..... 244

TAPPING WITH CHIP BREAKING (Cycle 209, Advanced programming features software option) ..... 246

Fundamentals of thread milling ..... 249

THREAD MILLING (Cycle 262, Advanced programming features software option) ..... 251

THREAD MILLING/COUNTERSINKING (Cycle 263, Advanced programming features software option) ..... 253

THREAD DRILLING/MILLING (Cycle 264, Advanced programming features software option) ..... 257

HELICAL THREAD DRILLING AND MILLING (Cycle 265, Advanced programming features software

option) ..... 261

OUTSIDE THREAD MILLING (Cycle 267, Advanced programming features software option) ..... 265

8.3 Cycles for Milling Pockets, Studs and Slots ..... 271

Overview ..... 271

POCKET MILLING (Cycle 4) ..... 272

POCKET FINISHING (Cycle 212, Advanced programming features software option) ..... 274

STUD FINISHING (Cycle 213, Advanced programming features software option) ..... 276

CIRCULAR POCKET (Cycle 5) ..... 278

CIRCULAR POCKET FINISHING (Cycle 214, Advanced programming features software option) ..... 280

CIRCULAR STUD FINISHING (Cycle 215, Advanced programming features software option) ..... 282

SLOT (oblong hole) with reciprocating plunge-cut (Cycle 210, Advanced programming features software

option) ..... 284

CIRCULAR SLOT (oblong hole) with reciprocating plunge-cut (Cycle 211, Advanced programming features

software option) ..... 287

8.4 Cycles for Machining Point Patterns ..... 293

Overview ..... 293

CIRCULAR PATTERN (Cycle 220, Advanced programming features software option) ..... 294

LINEAR PATTERN (Cycle 221, Advanced programming features software option) ..... 296

8.5 SL Cycles ..... 300

Fundamentals ..... 300

Overview of SL cycles ..... 302

CONTOUR GEOMETRY (Cycle 14) ..... 303

Overlapping contours ..... 304

CONTOUR DATA (Cycle 20, Advanced programming features software option) ..... 307

PILOT DRILLING (Cycle 21, Advanced programming features software option) ..... 308

ROUGH-OUT (Cycle 22, Advanced programming features software option) ..... 309

FLOOR FINISHING (Cycle 23, Advanced programming features software option) ..... 311

SIDE FINISHING (Cycle 24, Advanced programming features software option) ..... 312

CONTOUR TRAIN (Cycle 25, Advanced programming features software option) ..... 313

Program defaults for cylindrical surface machining cycles (software option 1!) ..... 315

CYLINDER SURFACE (Cycle 27, software option 1) ..... 316

CYLINDER SURFACE slot milling (Cycle 28, software option 1) ..... 318

CYLINDER SURFACE ridge milling (Cycle 29, software option 1) ..... 320

8.6 Cycles for Multipass Milling ..... 331

Overview ..... 331

MULTIPASS MILLING (Cycle 230, Advanced programming features software option) ..... 332

RULED SURFACE (Cycle 231, Advanced programming features software option) ..... 334

FACE MILLING (Cycle 232, Advanced programming features software option) ..... 337

8.7 Coordinate Transformation Cycles ..... 344

Overview ..... 344

Effect of coordinate transformations ..... 344

DATUM SHIFT (Cycle 7) ..... 345

DATUM SHIFT with datum tables (Cycle 7) ..... 346

DATUM SETTING (Cycle 247) ..... 349

MIRROR IMAGE (Cycle 8) ..... 350

ROTATION (Cycle 10) ..... 352

SCALING FACTOR (Cycle 11) ..... 353

AXIS-SPECIFIC SCALING (Cycle 26) ..... 354

WORKING PLANE (Cycle 19, software option 1) ..... 355

8.8 Special Cycles ..... 363

DWELL TIME (Cycle 9) ..... 363

PROGRAM CALL (Cycle 12) ..... 364

ORIENTED SPINDLE STOP (Cycle 13) ..... 365

TOLERANCE (Cycle 32) ..... 366

HEIDENHAIN TNC 620 21

9 Programming: Subprograms and Program Section Repeats ..... 369

9.1 Labeling Subprograms and Program Section Repeats ..... 370

Labels ..... 370

9.2 Subprograms ..... 371

Actions ..... 371

Programming notes ..... 371

Programming a subprogram ..... 371

Calling a subprogram ..... 371

9.3 Program Section Repeats ..... 372

Label LBL ..... 372

Actions ..... 372

Programming notes ..... 372

Programming a program section repeat ..... 372

Calling a program section repeat ..... 372

9.4 Separate Program as Subprogram ..... 373

Actions ..... 373

Programming notes ..... 373

Calling any program as a subprogram ..... 373

9.5 Nesting ..... 374

Types of nesting ..... 374

Nesting depth ..... 374

Subprogram within a subprogram ..... 374

Repeating program section repeats ..... 376

Repeating a subprogram ..... 377

9.6 Programming Examples ..... 378

10 Programming: Q Parameters ..... 385

10.1 Principle and Overview ..... 386

Programming notes ..... 387

Calling Q-parameter functions ..... 387

10.2 Part Families—Q Parameters in Place of Numerical Values ..... 388

Example NC blocks ..... 388

Example ..... 388

10.3 Describing Contours through Mathematical Operations ..... 389

Function ..... 389

Overview ..... 389

Programming fundamental operations ..... 390

10.4 Trigonometric Functions ..... 391

Definitions ..... 391

Programming trigonometric functions ..... 392

10.5 Calculating Circles ..... 393

Function ..... 393

10.6 If-Then Decisions with Q Parameters ..... 394

Function ..... 394

Unconditional jumps ..... 394

Programming If-Then decisions ..... 394

Abbreviations used: ..... 395

10.7 Checking and Changing Q Parameters ..... 396

Procedure ..... 396

10.8 Additional Functions ..... 397

Overview ..... 397

FN14: ERROR: Displaying error messages ..... 398

FN 16: F-PRINT: Formatted output of text and Q parameter values ..... 402

FN18: SYS-DATUM READ Read system data ..... 407

FN19: PLC: Transferring values to the PLC ..... 415

FN20: WAIT FOR: NC and PLC synchronization ..... 416

FN29: PLC: Transferring values to the PLC ..... 418

FN37:EXPORT ..... 418

10.9 Accessing Tables with SQL Commands ..... 419

Introduction ..... 419

A Transaction ..... 420

Programming SQL commands ..... 422

Overview of the soft keys ..... 422

SQL BIND ..... 423

SQL SELECT ..... 424

SQL FETCH ..... 427

SQL UPDATE ..... 428

SQL INSERT ..... 428

SQL COMMIT ..... 429

SQL ROLLBACK ..... 429

HEIDENHAIN TNC 620 23

10.10 Entering Formulas Directly ..... 430

Entering formulas ..... 430

Rules for formulas ..... 432

Programming example ..... 433

10.11 String Parameters ..... 434

String processing functions ..... 434

Assigning string parameters ..... 435

Chain-linking string parameters ..... 435

Converting a numerical value to a string parameter ..... 436

Copying a substring from a string parameter ..... 437

Converting a string parameter to a numerical value ..... 438

Checking a string parameter ..... 439

Finding the length of a string parameter ..... 440

Comparing alphabetic priority ..... 441

10.12 Preassigned Q Parameters ..... 442

Values from the PLC: Q100 to Q107 ..... 442

Active tool radius: Q108 ..... 442

Tool axis: Q109 ..... 442

Spindle status: Q110 ..... 443

Coolant on/off: Q111 ..... 443

Overlap factor: Q112 ..... 443

Unit of measurement for dimensions in the program: Q113 ..... 443

Tool length: Q114 ..... 443

Coordinates after probing during program run ..... 444

Deviation between actual value and nominal value during automatic tool measurement with the TT 130 ..... 445

Tilting the working plane with mathematical angles: rotary axis coordinates calculated by the TNC ..... 445

Measurement results from touch probe cycles (see also User’s Manual for Touch Probe Cycles) ..... 446

10.13 Programming Examples ..... 448

11 Test Run and Program Run ..... 455

11.1 Graphics (Advanced Graphic Features Software Option) ..... 456

Function ..... 456

Overview of display modes ..... 457

Plan view ..... 457

Projection in 3 planes ..... 458

3-D view ..... 459

Magnifying details ..... 460

Repeating graphic simulation ..... 462

Measuring the machining time ..... 462

11.2 Show the Workpiece in the Working Space (Advanced Graphic Features Software Option) ..... 463

Function ..... 463

11.3 Functions for Program Display ..... 464

Overview ..... 464

11.4 Test Run ..... 465

Function ..... 465

11.5 Program Run ..... 467

Function ..... 467

Running a part program ..... 468

Interrupting machining ..... 468

Moving the machine axes during an interruption ..... 469

Resuming program run after an interruption ..... 470

Mid-program startup (block scan) ..... 471

Returning to the contour ..... 472

11.6 Automatic Program Start ..... 473

Function ..... 473

11.7 Optional Block Skip ..... 474

Function ..... 474

Inserting the “/” character ..... 474

Erasing the “/” character ..... 474

11.8 Optional Program-Run Interruption ..... 475

Function ..... 475

HEIDENHAIN TNC 620 25

12 MOD Functions ..... 477

12.1 Selecting MOD Functions ..... 478

Selecting the MOD functions ..... 478

Changing the settings ..... 478

Exiting the MOD functions ..... 478

Overview of MOD functions ..... 479

12.2 Software Numbers ..... 480

Function ..... 480

12.3 Position Display Types ..... 481

Function ..... 481

12.4 Unit of Measurement ..... 482

Function ..... 482

12.5 Displaying Operating Times ..... 483

Function ..... 483

12.6 Entering Code Numbers ..... 484

Function ..... 484

12.7 Setting the Data Interfaces ..... 485

Serial interface on the TNC 620 ..... 485

Function ..... 485

Setting the RS-232 interface ..... 485

Setting the baud rate (baudRate) ..... 485

Set the protocol (protocol) ..... 485

Set the data bits (dataBits) ..... 486

Parity check (parity) ..... 486

Setting the stop bits (stopBits) ..... 486

Setting the handshake (flowControl) ..... 486

Settings for data transfer with the TNCserver PC software ..... 487

Setting the mode of the external device (fileSystem) ..... 487

Software for data transfer ..... 488

12.8 Ethernet Interface ..... 490

Introduction ..... 490

Connection possibilities ..... 490

Connecting the control to the network ..... 491

13 Tables and Overviews ..... 497

13.1 Machine-Specific User Parameters ..... 498

Function ..... 498

13.2 Pin Layout and Connecting Cables for Data Interfaces ..... 506

RS-232-C/V.24 interface for HEIDEHAIN devices ..... 506

Non-HEIDENHAIN devices ..... 507

Ethernet interface RJ45 socket ..... 507

13.3 Technical Information ..... 508

13.4 Exchanging the Buffer Battery ..... 515

HEIDENHAIN TNC 620 27

Introduction

1.1 The TNC 620

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. The TNC 620 is designed for milling and drilling machine tools, as well as machining centers, with up to 5 axes. You can also change the angular position of the spindle under program control.

Keyboard and screen layout are clearly arranged in such a way that the

1.1 The TNC 620

functions are fast and easy to use.

Programming: HEIDENHAIN conversational format

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 FK free contour programming feature (Advanced programming features software option), performs the necessary calculations automatically. Workpiece machining can be graphically simulated either during or before actual machining (Advanced graphic features software option).

You can also enter and test one program while the control is running another.

Compatibility

The scope of functions of the TNC 620 does not correspond to that of the TNC 4xx and iTNC 530 series of controls. Therefore, machining programs created on HEIDENHAIN contouring controls (starting from the TNC 150 B) may not always run on the TNC 620. If NC blocks contain invalid elements, the TNC will mark them as ERROR blocks during download.

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