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

TOOL TOOL

DEF CALL

Controls on the TNC

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 (only BC 120)

Typewriter keyboard for entering letters and symbols

Q	W	E	R	T Y	File name
					Comments
G	F	S	T	M	ISO programs

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

PGM	Select or delete programs and files
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		100
50	150	50	150
	F %		S %
	0		0

Programming path movements (only conversational)

APPR	Approach/depart contour
DEP
	FK free contour programming
L	Straight line
CC	Circle center/pole for polar coordinates
C	Circle with center
CR	Circle with radius
CT	Circular arc with tangential connection
CHF	Chamfer
RND	Corner rounding

Tool data (only conversational)

Entering and calling tool length and radius

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

CYCL	CYCL		Define and call cycles
DEF	CALL
LBL	LBL Enter and call labels for
SET	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
X	...	V	Select coordinate axes or enter
			them in a program
0	...	9	Numbers
	Decimal point
+/	Change arithmetic sign
P	Polar coordinates
	Incremental dimensions
Q	Q parameters
	Capture actual position
NO	Skip dialog questions, delete words
ENT

Confirm entry and resume

ENT

dialog

END

End block

Clear numerical entry or TNC error message

CE

DEL

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

I

Contents

Introduction

Manual Operation and Setup

Positioning with Manual Data Input (MDI)

Programming: Fundamentals of NC,

File Management, ProgrammingAids

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-DTouch Probes

MOD Functions

Tables and Overviews

Contents1

2

3

4

5

6

7

8

9

10

11

12

13

14

HEIDENHAIN TNC 410, TNC 426, TNC 430

III

Contents

.....1 INTRODUCTION		1
1.1	TheTNC 410,TheTNC 426, and TheTNC 430 2.....
1.2	Visual Display Unit and Keyboard 3.....
1.3	Modes of Operation 5.....
1.4	Status Displays ..... 9
1.5	Accessories: HEIDENHAIN 3-DTouch 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-DTouch Probe) 20.....
2.5	Tilt the working plane (notTNC 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 managementTNC 426,TNC 430 .....				38
4.4	Expanded File ManagementTNC 426,TNC 430 .....				43
4.5	File Management for theTNC 410		..... 56
4.6	Creating and Writing Programs .....		59
4.7	Programming Graphics (notTNC 426,TNC 430) .....				66
4.8	Adding Comments .....	68
4.9	CreatingText Files (notTNC 410) .....		69
4.10	The Pocket Calculator (notTNC 410) .....			72
4.11	Direct Help for NC Error Messages (notTNC 410) .....				73
4.12	Help Function (notTNC 426,TNC 430) .....			74
4.13	Pallet Management (notTNC 410) .....		75

IV

Contents

.....5 PROGRAMMING: TOOLS		77
5.1	EnteringTool-Related Data 78.....
5.2	Tool Data ..... 79
5.3	Tool Compensation .....	90

6 PROGRAMMING: PROGRAMMING CONTOURS						.....	95
6.1	Overview ofTool 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

HEIDENHAIN TNC 410, TNC 426, TNC 430

V

Contents

7 PROGRAMMING: MISCELLANEOUS FUNCTIONS .....	119
7.1 Entering Miscellaneous Functions M ..... 120

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

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 (notTNC 426,TNC 430) .....					125
	Contour filter: M124 (notTNC 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
(onlyTNC 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 (notTNC 410) .....								133
7.5 Miscellaneous Functions for Rotary Axes .....		134
Feed rate in mm/min on rotary axes A, B, C: M116 (notTNC 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
(notTNC 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 (onlyTNC 426,TNC 430 with NC software 280 474-xx) .....									139
7.6 Miscellaneous Functions for Laser Cutting Machines (notTNC 410) .....						140

VI

Contents

.....8 PROGRAMMING: CYCLES		141
8.1	General Information on Cycles 142.....
8.2	PointTables (onlyTNC 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 theTNC 426,TNC 430 with NC software 280 474-xx)								..... 155
	BORE MILLING (Cycle G208, only with theTNC 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 withTNC 426,TNC 430
	with NC software 280 474-xx) .....				160
	RIGIDTAPPING (Cycle G85) .....			162
	RIGIDTAPPING NEW(Cycle G207, only with theTNC 426,TNC 430 with NC software 280 474-xx) .....								163
	THREAD CUTTING (Cycle G86, notTNC 410) .....							165
	Example: Drilling cycles .....		166
	Example: Drilling cycles .....		167
	Example: Calling drilling cycles in connection with point tables (only withTNC 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

HEIDENHAIN TNC 410, TNC 426, TNC 430

VII

Contents

8.5 Cycles for Machining Hole Patterns .....			186
CIRCULAR PATTERN (Cycle 220) ..... 187
LINEAR PATTERN (Cycle 221) .....			188
Example: Circular hole patterns			..... 191
8.6 SL Cycles Group I .....	191
CONTOUR GEOMETRY (Cycle G37) .....				192
PILOT DRILLING (Cycle G56) .....			193
ROUGH-OUT (Cycle G57) .....		194
CONTOUR MILLING (Cycle G58/G59) .....				196
8.7 SL Cycles Group II (notTNC 410) .....			197
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
CONTOURTRAIN (Cycle G125) .....			206
CYLINDER SURFACE (Cycle G127) .....				208
CYLINDER SURFACE slot milling (Cycle G128, only inTNC 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
8.8 Cycles for Face Milling	..... 216
RUN DIGITIZED DATA (Cycle G60, notTNC 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, notTNC 410) .....				231
	Example: Coordinate transformation cycles .....				236
8.10	Special Cycles ..... 238
	DWELLTIME (Cycle G04) .....	238
	PROGRAM CALL (Cycle G39) .....		238
	ORIENTED SPINDLE STOP (Cycle G36)			..... 239
	TOLERANCE (Cycle G62, notTNC 410) .....			240
9 PROGRAMMING: SUBPROGRAMS AND PROGRAM SECTION REPEATS .....						241
9.1	Marking Subprograms and Program Section Repeats 242.....

9.2Subprograms ..... 242

9.3 Program Section Repeats .....

243

9.4Program 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
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 ContoursThrough 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

Contents

HEIDENHAIN TNC 410, TNC 426, TNC 430

IX

Contents

.....11 TEST RUN AND PROGRAM RUN			275
11.1	Graphics	..... 276
11.2	Functions for Program Display in Program Run andTest Run				..... 281
11.3	Test run .....	282
11.4	Program Run ..... 284
11.5	BlockwiseTransfer: Running Long Programs (not withTNC 426,TNC 430) ..... 292
11.6	Optional block skip ..... 293
11.7	Optional Program Run Interruption (notTNC 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-DTouch Probe 304.....
12.3	Measuring Workpieces with a 3-DTouch Probe 307.....

.....13 MOD FUNCTIONS		313
13.1	Selecting, Changing and Exiting the MOD Functions							..... 314
13.2	System Information (notTNC 426,TNC 430) .....						315
13.3	Software Numbers and Option NumbersTNC 426,TNC 430 .....								316
13.4	Code Number .....	316
13.5	Setting the Data Interface for theTNC 410 .....						317
	Setting the OPERATING MODE of the external device .....								317
	Setting the BAUD RATE				..... 317
13.6	Setting Up the Data Interfaces forTNC 426,TNC 430							..... 318
13.7	Software for DataTransfer .....				320
13.8	Ethernet Interface (onlyTNC 426,TNC 430) .....						322
13.9	Configuring PGM MGT (notTNC 410)					..... 329
13.10	Machine-Specific User Parameters .....					329
13.11	Showing the Workpiece in the Working Space (notTNC 410) .....								329
13.12	Position DisplayTypes			..... 331
13.13	Unit of Measurement .....			331
13.14	Programming Language for MDI .....					332
13.15	Selecting the Axes for Generating L Blocks (notTNC 410, only Conversational Dialog) ..... 332
13.16	AxisTraverse Limits, Datum Display .....					332
13.17	The HELP Function .....			334
13.18	OperatingTime (via Code Number forTNC 410) .....							334

X

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

HEIDENHAIN TNC 410, TNC 426, TNC 430

XI

1

Introduction

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

1.1The 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.

Compatibility

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

2	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 . The lines immediately above the
soft-key row indicate the number of soft-key rows that can be	10

called with the black arrow keys to the outside right and left. 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

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

Move picture to the left or downward

In the main menu:

Move highlight upward

In the submenu:

Increase value

Move picture to the right or upward

In the main menu:

Select submenu

10

In the submenu:

Exit submenu

See next page for the screen settings.

1.2 Visual Display Unit and Keyboard

HEIDENHAIN TNC 410, TNC 426, TNC 430

3

1.2 Visual Display Unit and Keyboard

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
COLORTEMP	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

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.

4	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:

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.

1.3 Modes of Operation

HEIDENHAIN TNC 410, TNC 426, TNC 430

5

1.3 Modes of Operation

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)

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)

6	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 forTNC 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

HEIDENHAIN TNC 410, TNC 426, TNC 430

7

1.3 Modes of Operation

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

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)

8	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

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

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)

Axes are moving under a basic rotation

1.4 Status Displays

HEIDENHAIN TNC 410, TNC 426, TNC 430

9

1.4 Status Displays

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.

<

Select the layout option for the additional status display.

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

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

<

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

10	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

HEIDENHAIN TNC 410, TNC 426, TNC 430
	11

1.4 Status Displays

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

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.

12	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

HEIDENHAIN TNC 410, TNC 426, TNC 430

13

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

1.5Accessories: 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 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.

14	1 Introduction