HEIDENHAIN TNC 426B User Manual

TNC 410 TNC 426 TNC 430

NC Software 286 060-xx 286 080-xx 280 472-xx 280 473-xx 280 474-xx 280 475-xx

User's Manual

ISO Programming

4/99

Controls on the visual display unit

Split screen layout

Switch between machining or programming modes

Soft keys for selecting functions in screen

Switching the soft-key rows

Changing the screen settings

Controls on the TNC

(only BC 120)

Typewriter keyboard for entering letters and symbols

W E

F S T M

Comments

ISO programs

File name

Machine operating modes

Manual Operation

Electronic Handwheel

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

PGM MGT

External data transfer

PGM

Enter program call in a program

CALL

MOD

MOD functions

HELP

Displaying help texts for NC error messages

CALC

Pocket calculator

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

Move highlight

GOTO

Go directly to blocks, cycles and parameter functions

Override control knobs for feed rate/spindle speed

100

F %

100

S %

Programming path movements (only conversational)

APPR

Approach/depart contour

DEP

FK free contour programming

Straight line

Circle center/pole for polar coordinates

Circle with center

Circle with radius

Circular arc with tangential connection

CHF

Chamfer

RND

Corner rounding

Tool data (only conversational)

TOOL

DEF

Entering and calling tool length and

TOOL CALL

radius

Cycles, subprograms, and program section repeats (only conversational)

CYCL

DEF

LBL SET

Define and call cycles

CALL

LBL

Enter and call labels for

CALL

subprogramming and program section repeats

STOP

Program stop in a program

TOUCH

Enter touch probe functions in a program

PROBE

Coordinate axes and numbers, editing

...

Select coordinate axes or enter

them in a program

Numbers

Decimal point

Change arithmetic sign

Polar coordinates

Incremental dimensions

Q parameters

Capture actual position

Skip dialog questions, delete words

ENT

END

Clear numerical entry or TNC error message

DEL

Confirm entry and resume dialog

End block

Abort dialog, delete program section

TNC Models, Software and Features

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

TNC Model NC Software No.

TNC 410 286 060-xx TNC 410 286 080-xx TNC 426 CB, TNC 426 PB 280 472-xx TNC 426 CF, TNC 426 PF 280 473-xx TNC 430 CA, TNC 430 PA 280 472-xx TNC 430 CE, TNC 430 PE 280 473-xx TNC 426 CB, TNC 426 PB 280 474-xx TNC 426 CF, TNC 426 PF 280 475-xx TNC 426 M 280 474-xx TNC 426 ME 280 475-xx TNC 430 CA, TNC 430 PA 280 474-xx TNC 430 CE, TNC 430 PE 280 475-xx TNC 430 M 280 474-xx TNC 430 ME 280 475-xx

The suffixes E and F indicate the export versions of the TNC which have 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:

■ Probing function for the 3-D touch probe

■ Digitizing option (conversational programming only)

■ Tool measurement with the TT 120 (conversational

programming only)

■ Rigid tapping

■ Returning to the contour after an interruption

Please contact your machine tool builder to become familiar with the individual implementation of the control on 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:

In addition to this manual, another manual is available describing all the touch probe functions of the TNC 426 / TNC 430. Please contact HEIDENHAIN if you require a copy of this User's Manual. ID number: 329 203-xx.

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.

Contents

IHEIDENHAIN TNC 410, TNC 426, TNC 430

Contents

Introduction

Manual Operation and Setup

Positioning with Manual Data Input (MDI)

Programming: Fundamentals of NC, 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

3-D Touch Probes

Contents

3 4 5 6 7 8 9

MOD Functions

Tables and Overviews

13 14

IIIHEIDENHAIN TNC 410, TNC 426, TNC 430

1 INTRODUCTION ..... 1

1.1 The TNC 410, The TNC 426, and The TNC 430 ..... 2

1.2 Visual Display Unit and Keyboard ..... 3

Contents

1.3 Modes of Operation ..... 5

1.4 Status Displays ..... 9

1.5 Accessories: HEIDENHAIN 3-D Touch Probes and Electronic Handwheels ..... 14

2 MANUAL OPERATION AND SETUP ..... 15

2.1 Switch-on, Switch-off ..... 16

2.2 Moving the Machine Axes ..... 17

2.3 Spindle Speed S, Feed Rate F and Miscellaneous Functions M ..... 19

2.4 Datum Setting (Without a 3-D Touch Probe) ..... 20

2.5 Tilt the working plane (not TNC 410) ..... 21

3 POSITIONING WITH MANUAL DATA INPUT (MDI) ..... 25

3.1 Program and Run Simple Machining Operations ..... 26

4 PROGRAMMING: FUNDAMENTALS OF NC, FILE MANAGEMENT,

PROGRAMMING AIDS, PALLET MANAGEMENT ..... 31

4.1 Fundamentals of NC ..... 32

4.2 File Management: Fundamentals ..... 37

4.3 Standard file management TNC 426, TNC 430 ..... 38

4.4 Expanded File Management TNC 426, TNC 430 ..... 43

4.5 File Management for the TNC 410 ..... 56

4.6 Creating and Writing Programs ..... 59

4.7 Programming Graphics (not TNC 426, TNC 430) ..... 66

4.8 Adding Comments ..... 68

4.9 Creating Text Files (not TNC 410) ..... 69

4.10 The Pocket Calculator (not TNC 410) ..... 72

4.11 Direct Help for NC Error Messages (not TNC 410) ..... 73

4.12 Help Function (not TNC 426, TNC 430) ..... 74

4.13 Pallet Management (not TNC 410) ..... 75

Contents

5 PROGRAMMING: TOOLS ..... 77

5.1 Entering Tool-Related Data ..... 78

5.2 Tool Data ..... 79

5.3 Tool Compensation ..... 90

6 PROGRAMMING: PROGRAMMING CONTOURS ..... 95

6.1 Overview of Tool Movements ..... 96

6.2 Fundamentals of Path Functions ..... 97

6.3 Contour Approach and Departure ..... 99

6.4 Path Contours — Cartesian Coordinates ..... 102

Overview of path functions ..... 102

Straight line at rapid traverse G00, Straight line with feed rate G01 F . . . ..... 103

Inserting a chamfer between two straight lines ..... 103

Circle center I, J ..... 104

Circular path G02/G03/G05 around the circle center I, J ..... 104

Circular path G02/G03/G05 with defined radius ..... 105

Rounding corners G25 ..... 108

Example: Linear movements and chamfers with Cartesian coordinates ..... 109

Example: Circular movements with Cartesian coordinates ..... 110

Example: Full circle with Cartesian coordinates ..... 111

6.5 Path Contours—Polar Coordinates ..... 112

Zero point for polar coordinates: pole I, J ..... 112

Straight line at rapid traverse G10, Straight line with feed rate G11 F . . . ..... 113

Circular path G12/G13/G15 around pole I, J ..... 113

Circular path G16 with tangential approach ..... 114

Helical interpolation ..... 114

Example: Linear movement with polar coordinates ..... 116

Example: Helix ..... 117

Contents

VHEIDENHAIN TNC 410, TNC 426, TNC 430

7 PROGRAMMING: MISCELLANEOUS FUNCTIONS ..... 119

7.1 Entering Miscellaneous Functions M ..... 120

7.2 Miscellaneous Functions for Program Run Control, Spindle and Coolant ..... 121

Contents

7.3 Miscellaneous Functions for Coordinate Data ..... 121

7.4 Miscellaneous Functions for Contouring Behavior ..... 124

Smoothing corners: M90 ..... 124

Entering contour transitions between two contour elements: M112 (not TNC 426, TNC 430) ..... 125

Contour filter: M124 (not TNC 426, TNC 430) ..... 127

Machining small contour steps: M97 ..... 129

Machining open contours: M98 ..... 130

Feed rate factor for plunging movements: M103 ..... 131

Feed rate in micrometers per spindle revolution: M136

(only TNC 426, TNC 430 with NC software 280 474-xx) ..... 131

Feed rate at circular arcs: M109/M110/M111 ..... 132

Calculating the radius-compensated path in advance (LOOK AHEAD): M120 ..... 132

Superimposing handwheel positioning during program run: M118 (not TNC 410) ..... 133

7.5 Miscellaneous Functions for Rotary Axes ..... 134

Feed rate in mm/min on rotary axes A, B, C: M116 (not TNC 410) ..... 134

Shorter-path traverse of rotary axes: M126 ..... 134

Reducing display of a rotary axis to a value less than 360°: M94 ..... 135

Automatic compensation of machine geometry when working with tilted axes: M114

(not TNC 410) ..... 136

Maintaining the position of the tool tip when positioning with tilted axes (TCPM*): M128 ..... 137

Exact stop at corners with nontangential transitions: M134 ..... 139

Selection of tilting axes: M138 (only TNC 426, TNC 430 with NC software 280 474-xx) ..... 139

7.6 Miscellaneous Functions for Laser Cutting Machines (not TNC 410) ..... 140

Contents

8 PROGRAMMING: CYCLES ..... 141

8.1 General Information on Cycles ..... 142

8.2 Point Tables (only TNC 410) ..... 144

Creating a point table ..... 144

Selecting point tables in the program ..... 144

Calling a cycle in connection with point tables ..... 145

8.3 Drilling Cycles ..... 146

PECKING (Cycle G83) ..... 146

DRILLING (Cycle G200) ..... 148

REAMING (Cycle G201) ..... 149

BORING (Cycle G202) ..... 150

UNIVERSAL DRILLING (Cycle G203) ..... 151

BACK BORING (Cycle G204) ..... 153

UNIVERSAL PECKING (Cycle G205, only with the TNC 426, TNC 430 with NC software 280 474-xx) ..... 155

BORE MILLING (Cycle G208, only with the TNC 426, TNC 430 with NC software 280 474-xx) ..... 157

TAPPING with a floating tap holder (Cycle G84) ..... 159

TAPPING NEW with floating tap holder (Cycle G206, only with TNC 426, TNC 430

with NC software 280 474-xx) ..... 160

RIGID TAPPING (Cycle G85) ..... 162

RIGID TAPPING NEW(Cycle G207, only with the TNC 426, TNC 430 with NC software 280 474-xx) ..... 163

THREAD CUTTING (Cycle G86, not TNC 410) ..... 165

Example: Drilling cycles ..... 166

Example: Drilling cycles ..... 167

Example: Calling drilling cycles in connection with point tables (only with TNC 410) ..... 168

8.4 Cycles for milling pockets, studs and slots ..... 170

POCKET MILLING (Cycles G75, G76) ..... 171

POCKET FINISHING (Cycle G212) ..... 172

STUD FINISHING (Cycle G213) ..... 174

CIRCULAR POCKET MILLING (Cycles G77, G78) ..... 175

CIRCULAR POCKET FINISHING (Cycle G214) ..... 177

CIRCULAR STUD FINISHING (Cycle G215) ..... 178

SLOT MILLING (Cycle G74) ..... 180

SLOT with reciprocating plunge-cut (Cycle G210) ..... 181

CIRCULAR SLOT with reciprocating plunge-cut (Cycle G211) ..... 183

Example: Milling pockets, studs and slots ..... 185

Contents

VIIHEIDENHAIN TNC 410, TNC 426, TNC 430

8.5 Cycles for Machining Hole Patterns ..... 186

Contents

8.6 SL Cycles Group I ..... 191

8.7 SL Cycles Group II (not TNC 410) ..... 197

8.8 Cycles for Face Milling ..... 216

CIRCULAR PATTERN (Cycle 220) ..... 187

LINEAR PATTERN (Cycle 221) ..... 188

Example: Circular hole patterns ..... 191

CONTOUR GEOMETRY (Cycle G37) ..... 192

PILOT DRILLING (Cycle G56) ..... 193

ROUGH-OUT (Cycle G57) ..... 194

CONTOUR MILLING (Cycle G58/G59) ..... 196

CONTOUR GEOMETRY (Cycle G37) ..... 199

Overlapping contours ..... 199

CONTOUR DATA (Cycle G120) ..... 201

PILOT DRILLING (Cycle G121) ..... 202

ROUGH-OUT (Cycle G122) ..... 203

FLOOR FINISHING (Cycle G123) ..... 204

SIDE FINISHING (Cycle G124) ..... 205

CONTOUR TRAIN (Cycle G125) ..... 206

CYLINDER SURFACE (Cycle G127) ..... 208

CYLINDER SURFACE slot milling (Cycle G128, only in TNC 426, TNC 430 with

NC software 280 474-xx) ..... 210

Example: Pilot drilling, roughing-out and finishing overlapping contours ..... 212

Example: Cylinder surface ..... 214

Example: Contour train ..... 215

RUN DIGITIZED DATA (Cycle G60, not TNC 410) ..... 216

MULTIPASS MILLING (Cycle G230) ..... 218

RULED SURFACE (Cycle 231) ..... 220

Example: Multipass milling ..... 222

VIII

Contents

8.9 Coordinate transformation cycles ..... 223

DATUM SHIFT (Cycle G54) ..... 224

DATUM SHIFT with datum tables (Cycle G53) ..... 225

MIRROR IMAGE (Cycle G28) ..... 228

ROTATION (Cycle G73) ..... 229

SCALING FACTOR (Cycle G72) ..... 230

WORKING PLANE (Cycle G80, not TNC 410) ..... 231

Example: Coordinate transformation cycles ..... 236

8.10 Special Cycles ..... 238

DWELL TIME (Cycle G04) ..... 238

PROGRAM CALL (Cycle G39) ..... 238

ORIENTED SPINDLE STOP (Cycle G36) ..... 239

TOLERANCE (Cycle G62, not TNC 410) ..... 240

9 PROGRAMMING: SUBPROGRAMS AND PROGRAM SECTION REPEATS ..... 241

9.1 Marking Subprograms and Program Section Repeats ..... 242

9.2 Subprograms ..... 242

9.3 Program Section Repeats ..... 243

9.4 Program as Subprogram ..... 244

9.5 Nesting ..... 245

9.6 Programming Examples ..... 248

Example: Milling a contour in several infeeds ..... 248

Example: Groups of holes ..... 249

Example: Groups of holes with several tools ..... 250

Contents

10 PROGRAMMING: Q PARAMETERS ..... 253

10.1 Principle and Overview ..... 254

10.2 Part Families — Q Parameters in Place of Numerical Values ..... 255

10.3 Describing Contours Through Mathematical Functions ..... 256

10.4 Trigonometric Functions ..... 258

10.5 If-Then Decisions with Q Parameters ..... 259

10.6 Checking and Changing Q Parameters ..... 260

10.7 Additional Functions ..... 261

10.8 Entering Formulas Directly ..... 263

10.9 Preassigned Q Parameters ..... 266

10.10 Programming Examples ..... 269

Example: Ellipse ..... 269

Example: Concave cylinder machined with spherical cutter ..... 271

Example: Convex sphere machined with end mill ..... 273

IXHEIDENHAIN TNC 410, TNC 426, TNC 430

11 TEST RUN AND PROGRAM RUN ..... 275

11.1 Graphics ..... 276

11.2 Functions for Program Display in Program Run and Test Run ..... 281

Contents

11.3 Test run ..... 282

11.4 Program Run ..... 284

11.5 Blockwise Transfer: Running Long Programs (not with TNC 426, TNC 430) ..... 292

11.6 Optional block skip ..... 293

11.7 Optional Program Run Interruption (not TNC 426, TNC 430) ..... 293

12 3-D TOUCH PROBES ..... 295

12.1 Touch Probe Cycles in the Manual and Electronic Handwheel ..... 296

12.2 Setting the Datum with a 3-D Touch Probe ..... 304

12.3 Measuring Workpieces with a 3-D Touch Probe ..... 307

13 MOD FUNCTIONS ..... 313

13.1 Selecting, Changing and Exiting the MOD Functions ..... 314

13.2 System Information (not TNC 426, TNC 430) ..... 315

13.3 Software Numbers and Option Numbers TNC 426, TNC 430 ..... 316

13.4 Code Number ..... 316

13.5 Setting the Data Interface for the TNC 410 ..... 317

Setting the OPERATING MODE of the external device ..... 317

Setting the BAUD RATE ..... 317

13.6 Setting Up the Data Interfaces for TNC 426, TNC 430 ..... 318

13.7 Software for Data Transfer ..... 320

13.8 Ethernet Interface (only TNC 426, TNC 430) ..... 322

13.9 Configuring PGM MGT (not TNC 410) ..... 329

13.10 Machine-Specific User Parameters ..... 329

13.11 Showing the Workpiece in the Working Space (not TNC 410) ..... 329

13.12 Position Display Types ..... 331

13.13 Unit of Measurement ..... 331

13.14 Programming Language for MDI ..... 332

13.15 Selecting the Axes for Generating L Blocks (not TNC 410, only Conversational Dialog) ..... 332

13.16 Axis Traverse Limits, Datum Display ..... 332

13.17 The HELP Function ..... 334

13.18 Operating Time (via Code Number for TNC 410) ..... 334

Contents

TABLES AND OVERVIEWS ..... 335

14.1 General User Parameters ..... 336

14.2 Pin Layout and Connecting Cable for the Data Interfaces ..... 352

14.3 Technical Information ..... 356

14.4 Exchanging the Buffer Battery ..... 360

14.5 Addresses (ISO) ..... 360

Contents

XIHEIDENHAIN TNC 410, TNC 426, TNC 430

Introduction

1.1 The TNC 410, The TNC 426, and The TNC 430

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 TNC 410 can control up to 4 axes, the TNC 426 up to 5 axes, and the TNC 430 up to 9 axes. You can also change the angular position of the spindle under program control.

Keyboard and screen layout are clearly arranged in a such way that the functions are fast and easy to use.

Programming: HEIDENHAIN conversational and ISO formats

HEIDENHAIN conversational programming 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 carries out the necessary calculations automatically. Workpiece machining can be graphically simulated either during or before actual machining. It is also possible to program in ISO format or DNC mode.

You can enter a program while the control is running another. With the TNC 426, TNC 430 it is also possible to test one program while another is being run.

1.1 The TNC 410, the TNC 426, the TNC 430

Compatibility

The TNC can execute all part programs that were written on HEIDENHAIN controls TNC 150 B and later.

1 Introduction

1.2 Visual Display Unit and Keyboard

Visual display unit

The TNC is available with either a color CRT screen (BC 120) or a TFT flat panel display (BF 120. The figures at right show the keys and controls on the BC 120 (upper right) and the BF 120 (middle right).

Header When the TNC is on, the selected operating modes are shown in the screen header. With the TNC 426, TNC 430, the machine operating modes are on the left and the programming modes are on the 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).

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 soft-key row indicate the number of soft-key rows that can be called with the black arrow keys to the The line representing the active soft-key row is highlighted.

Soft key selector keys Switching the soft-key rows Setting the screen layout Shift key for switchover between machining and programming

modes

. The lines immediately above the

outside right and left.

1.2 Visual Display Unit and Keyboard

Keys on BC 120 only

Screen demagnetization; Exit main menu for screen settings

Select main menu for screen settings; In the main menu: Move highlight downward In the submenu: Reduce value

In the main menu: Move highlight upward In the submenu: Increase value

In the main menu: Select submenu

In the submenu: Exit submenu

See next page for the screen settings.

Move picture to the left or downward

Move picture to the right or upward

3HEIDENHAIN TNC 410, TNC 426, TNC 430

Main menu dialog Function

BRIGHTNESS Adjust brightness CONTRAST Adjust contrast H-POSITION Adjust horizontal position H-SIZE Adjust picture width V-POSITION Adjust vertical position V-SIZE Adjust picture height SIDE-PIN Correct barrel-shaped distortion TRAPEZOID Correct trapezoidal distortion ROTATION Correct tilting COLOR TEMP Adjust color temperature R-GAIN Adjust strength of red color B-GAIN Adjust strength of blue color RECALL No function

The BC 120 is sensitive to magnetic and electromagnetic noise, which can distort the position and geometry of the picture. Alternating fields can cause the picture to shift periodically or to become distorted.

Screen layout

1.2 Visual Display Unit and Keyboard

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 (only TNC 410). The available screen windows depend on the selected operating mode.

To change the screen layout:

Press the switch-over key: The soft-key row shows the available layout options (see section

1.3 ”Modes of Operation”).

Select the desired screen layout.

1 Introduction

Keyboard

The figure at right shows the keys of the keyboard grouped according to their functions:

Alphanumeric keyboard for entering texts and file names, as well as for programming in ISO format

File management, pocket calculator (not TNC 410), MOD function, HELP function

Programming modes Machine operating modes Initiation of programming dialog Arrow keys and GOTO jump command Numerical input and axis selection

The functions of the individual keys are described on the inside front cover. Machine panel buttons, e.g. NC START, are described in the manual for your machine tool.

1.3 Modes of Operation

The TNC offers the following modes of operation for the various functions and working steps that you need to machine a workpiece:

1.3 Modes of Operation

Manual Operation and Electronic Handwheel

The Manual Operation mode is required for setting up the machine tool. In this operating mode, 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 describe above, TNC 410: see screen layout with program run, full sequence)

Screen windows Soft key

Positions

Left: positions. Right: status display.

5HEIDENHAIN TNC 410, TNC 426, TNC 430

Positioning with Manual Data Input (MDI)

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

Screen windows Soft key

Program

Left: positions. Right: status display. (only TNC 426, TNC 430)

1.3 Modes of Operation

Left: program. Right: general program information (only TNC 410)

Left: program. Right: positions and coordinates (only TNC 410)

Left: program. Right: information on tools (only TNC 410)

Left: program. Right: coordinate transformations (only TNC 410)

1 Introduction

Programming and Editing

In this mode of operation you can write your part programs. The various cycles and Q-parameter functions help you with programming and add necessary information.

Soft keys for screen layout (not for TNC 426, TNC 430)

Screen windows Soft key

Program

Left: program. Right: help graphics for cycle programming

Left: program. Right: programming graphics

Interactive Programming Graphics

1.3 Modes of Operation

7HEIDENHAIN TNC 410, TNC 426, TNC 430

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.

Soft keys for selecting the screen layout

See Program Run, Full Sequence.

Program Run, Full Sequence and Program Run, Single Block

1.3 Modes of Operation

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

Screen windows Soft key

Program

Left: program. Right: STATUS (only TNC 426, TNC 430)

Left: program blocks, right: graphics (only TNC 426, TNC 430)

Graphics (only TNC 426, TNC 430)

Screen windows Soft key

Left: program. Right: general Program information (only TNC 410)

Left: program. Right: positions and coordinates (only TNC 410)

Left: program. Right: information on tools (only TNC 410)

Left: program. Right: coordinate transformations (only TNC 410)

Left: program Right: tool measurement (only TNC 410)

1 Introduction

1.4 Status Displays

“General” status display

The status display 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 operating modes Manual and Electronic Handwheel, the status display is shown in the large window.

Information in the status display

The Meaning

ACTL. Actual or nominal coordinates of the current position

X Y Z 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

F S M 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 locked

Axis can be moved with the handwheel

Axes are moving in a tilted working plane (not TNC 410)

1.4 Status Displays

Axes are moving under a basic rotation

9HEIDENHAIN TNC 410, TNC 426, TNC 430

Additional status displays

The additional status displays contain detailed information on the program run. They can be called in all operating modes, except in the Programming and Editing mode of operation.

To switch on the additional status display:

Call the soft-key row for screen layout.

1.4 Status Displays

You can choose between several additional status displays with the following soft keys:

Select the layout option for the additional status display.

Shift the soft-key rows until the STATUS soft keys appear.

Select the desired additional status display, e.g. general program information.

1 Introduction

General program information

Name of main program Active programs Active machining cycle Circle center CC (pole) Operating time Dwell time counter

Positions and coordinates

Position display Type of position display, e.g. actual positions Tilting angle for the working plane (not TNC 410) Angle of a basic rotation

1.4 Status Displays

11HEIDENHAIN TNC 410, TNC 426, TNC 430

Information on tools

T: Tool number and name RT: Number and name of a replacement tool

Tool axis Tool length and radii Oversizes (delta values) from TOOL CALL (PGM) and the tool

table (TAB) Tool life, maximum tool life (TIME 1) and maximum tool life for

1.4 Status Displays

TOOL CALL (TIME 2) Display of the active tool and the (next) replacement tool

Coordinate transformations

Name of main program Active datum shift (Cycle 7) Active rotation angle (Cycle 10) Mirrored axes (Cycle 8) Active scaling factor(s) (Cycles 11 / 26) Scaling datum

For further information, refer to section 8.8 “Coordinate Transformation Cycles.”

Tool measurement

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.

1 Introduction

Active miscellaneous functions M

(only TNC 426, TNC 430 with NC software 280 474-xx)

List of the active M functions with fixed meaning. List of the active M functions with function assigned by machine

manufacturer.

1.4 Status Displays

13HEIDENHAIN TNC 410, TNC 426, TNC 430

1.5 Accessories: 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

■ Digitize 3-D surfaces (option), and

■ Measure and inspect tools

TS 220 and TS 630 touch trigger probes

These touch probes are particularly effective for automatic workpiece alignment, datum setting, workpiece measurement and for digitizing. The TS 220 transmits the triggering signals to the TNC via cable and is a cost-effective alternative for applications where digitizing is not frequently required.

The TS 630 features infrared transmission of the triggering signal to the TNC. This makes it 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 TNC, which stores the current position of the stylus as an actual value.

During digitizing the TNC generates a program containing straight line blocks in HEIDENHAIN format from a series of measured position data. You can then output the program to a PC for further processing with the SUSA evaluation software. This evaluation software enables you to calculate male/female transformations or correct the program to account for special tool shapes and radii that differ from the shape of the stylus tip. If the tool has the same radius as the stylus tip you can run these programs immediately.

TT 120 tool touch probe for tool measurement

The TT 120 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 (only for conversational programming).

The TT 120 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

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

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 portable handwheel.

1 Introduction

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