HEIDENHAIN TNC 620 Programming Station User manual

TNC 620
User’s manual for
cycle programming
NC Software
817600-03
817601-03
817605-03
English (en)
9/2015

Fundamentals

Fundamentals
About this Manual
4HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015
About this Manual
The symbols used in this manual are described below.
This symbol indicates that important information
about the function described must be considered.
WARNING This symbol indicates a possibly
dangerous situation that may cause light injuries if
not avoided.
This symbol indicates that there is one or more
of the following risks when using the described
function:
Danger to workpiece
Danger to fixtures
Danger to tool
Danger to machine
Danger to operator
This symbol indicates that the described function
must be adapted by the machine tool builder. The
function described may therefore vary depending on
the machine.
This symbol indicates that you can find detailed
information about a function in another manual.
Would you like any changes, or have you found any
errors?
We are continuously striving to improve our documentation for you.
Please help us by sending your requests to the following e-mail
address: [email protected].

TNC model, software and features
HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015 5
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 817600-03
TNC 620 E 817601-03
TNC 620 Programming Station 817605-03
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:
Tool measurement with the TT
Please contact your machine tool builder to become familiar with
the features of your machine.
Many machine manufacturers, as well as HEIDENHAIN, offer
programming courses for the TNCs. We recommend these courses
as an effective way of improving your programming skill and
sharing information and ideas with other TNC users.
User's Manual:
All TNC functions that have no connection with
cycles are described in the User's Manual of the TNC
620. Please contact HEIDENHAIN if you require a
copy of this User's Manual.
ID of User's Manual for conversational programming:
1096883-xx.
ID of User’s Manual for DIN/ISO programming:
1096887-xx.

Fundamentals
TNC model, software and features
6HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015
Software options
The TNC 620 features various software options that can be enabled by your machine tool builder. Each option is to
be enabled separately and contains the following respective functions:
Additional Axis (option 0 and option 1)
Additional axis Additional control loops 1 and 2
Advanced Function Set 1 (option 8)
Expanded functions Group 1 Machining with rotary tables
Cylindrical contours as if in two axes
Feed rate in distance per minute
Coordinate transformations:
Tilting the working plane
Interpolation:
Circle in 3 axes with tilted working plane (spatial arc)
Advanced Function Set 2 (option 9)
Expanded functions Group 2 3-D machining:
Motion control with minimum jerk
3-D tool compensation through surface normal vectors
Using the electronic handwheel to change the angle of the swivel
head during program run without affecting the position of the tool
point. (TCPM = Tool Center Point Management)
Keeping the tool normal to the contour
Tool radius compensation perpendicular to traversing direction and
tool direction
Interpolation:
Linear in 5 axes (subject to export permit)
Touch Probe Functions (option 17)
Touch probe cycles:
Compensation of tool misalignment in automatic mode
Datum setting in the Manual Operation mode
Datum setting in automatic mode
Automatically measuring workpieces
Tools can be measured automatically
Touch probe functions
HEIDENHAIN DNC (option 18)
Communication with external PC applications over COM component

TNC model, software and features
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Advanced Programming Features (option 19)
Expanded programming functions FK free contour programming:
Programming in HEIDENHAIN conversational format with graphic
support for workpiece drawings not dimensioned for NC
Fixed cycles:
Peck drilling, reaming, boring, counterboring, centering (cycles 201
to 205, 208, 240, 241)
Milling of internal and external threads (cycles 262 to 265, 267)
Finishing of rectangular and circular pockets and studs (cycles 212 to
215, 251 to 257)
Clearing level and oblique surfaces (cycles 230 to 233)
Straight slots and circular slots (cycles 210, 211, 253, 254)
Linear and circular point patterns (cycles 220, 221)
Contour train, contour pocket—also with contour-parallel machining,
trochoidal slot (cycles 20 to 25, 275)
Engraving (cycle 225)
OEM cycles (special cycles developed by the machine tool builder)
can be integrated
Advanced Graphic Features (option 20)
Expanded graphic functions Program-verification graphics, program-run graphics
Plan view
Projection in three planes
3-D view
Advanced Function Set 3 (option 21)
Expanded functions Group 3 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 Processing workpieces in any sequence
Display Step (option 23)
Display step Input resolution:
Linear axes down to 0.01 µm
Rotary axes to 0.00001°

Fundamentals
TNC model, software and features
8HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015
DXF Converter (option 42)
DXF converter Supported DXF format: AC1009 (AutoCAD R12)
Adoption of contours and point patterns
Simple and convenient specification of reference points
Select graphical features of contour sections from conversational
programs
KinematicsOpt (option 48)
Optimizing the machine
kinematics Backup/restore active kinematics
Test active kinematics
Optimize active kinematics
Extended Tool Management (option 93)
Extended tool management Python-based
Remote Desktop Manager (option 133)
Remote operation of external
computer units Windows on a separate computer unit
Incorporated in the TNC interface
Cross Talk Compensation – CTC (option number 141)
Compensation of axis couplings Determination of dynamically caused position deviation through axis
acceleration
Compensation of the TCP (Tool Center Point)
Position Adaptive Control – PAC (option 142)
Adaptive position control Changing of the control parameters depending on the position of
the axes in the working space
Changing of the control parameters depending on the speed or
acceleration of an axis
Load Adaptive Control – LAC (option 143)
Adaptive load control Automatic determination of workpiece weight and frictional forces
Changing of control parameters depending on the actual mass of
the workpiece
Active Chatter Control – ACC (option number 145)
Active chatter control Fully automatic function for chatter control during machining
Active Vibration Damping – AVD (option number 146)
Active vibration damping Damping of machine oscillations to improve the workpiece surface

TNC model, software and features
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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 softkey

Fundamentals
Optional parameters
10 HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015
Optional parameters
The comprehensive cycle package is continuously further
developed by HEIDENHAIN. Every new software version thus
may also introduce new Q parameters for cycles. These new Q
parameters are optional parameters, some of which have not been
available in previous software versions. Within a cycle, they are
always provided at the end of the cycle definition. You will find an
overview of the optional Q parameters that have been added with
this software version in the "New and changed cycle functions of
software 81760x-02" section. You can choose whether to define
optional Q parameters or delete them with the NO ENT key. You
can also adopt the default value. If you have accidentally deleted an
optional Q parameter or if you would like to extend cycles in your
existing programs after a software update, you can include optional
Q parameters in cycles when needed. The following steps describe
how this is done:
To insert optional Q parameters in existing programs:
Call the cycle definition
Press the right arrow key until the new Q parameters are
displayed
Apply the default value or enter a value
To transfer the new Q parameter, exit the menu by pressing
the right arrow key once again or by pressing END
If you do not wish to apply the new Q parameter, press the
NO ENT key
Compatibility
The majority of part programs created on older HEIDENHAIN
contouring controls (TNC 150 B and higher) can be executed with
this new software version of the TNC 620. Even if new, optional
parameters ("Optional parameters") have been added to existing
cycles, you can normally continue running your programs as usual.
This is achieved by using the stored default value. The other way
round, if a program created with a new software version is to be
run on an older control, you can delete the respective optional
Q parameters from the cycle definition with the NO ENT key.
In this way you can ensure that the program will be downward
compatible. If NC blocks contain invalid elements, the TNC will
mark them as ERROR blocks when the file is opened.

New cycle functions of software
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New cycle functions of software 81760x-01
The character set of the fixed cycle 225 Engraving was
expanded by more characters and the diameter sign see
"ENGRAVING (Cycle 225, DIN/ISO: G225)", page 286
New machining cycle 275 Trochoidal milling see "TROCHOIDAL
SLOT (Cycle 275, DIN ISO G275, software option 19)",
page 212
New machining cycle 233 Face milling see "FACE MILLING
(Cycle 233, DIN/ISO: G233, software option 19)", page 168
In Cycle 205 Universal Pecking you can now use parameter
Q208 to define a feed rate for retraction see "Cycle parameters",
page 88
In the thread milling cycles 26x an approaching feed rate was
introduced see "Cycle parameters", page 115
The parameter Q305 NUMBER IN TABLE was added to Cycle
404 see "Cycle parameters", page 322
In the drilling cycles 200, 203 and 205 the parameter Q395
DEPTH REFERENCE was introduced in order to evaluate the T
ANGLE see "Cycle parameters", page 88
Cycle 241 SINGLE-LIP DEEP HOLE DRILLING was expanded
by several input parameters see "SINGLE-LIP DEEP-HOLE
DRILLING (Cycle 241, DIN/ISO: G241, software option 19)",
page 93
The probing cycle 4 MEASURING IN 3-D was introduced see
"MEASURING IN 3-D (Cycle 4, software option 17)", page 431

Fundamentals
New and changed cycle functions of software
12 HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015
New and changed cycle functions of
software 81760x-02
New Load Adaptive Control (LAC) cycle for the load-dependent
adaptation of control parameters (software option 143), see
"ASCERTAIN THE LOAD (Cycle 239, DIN/ISO: G239, software
option 143)", page 295
Cycle 270: CONTOUR TRAIN DATA was added to the cycle
package (software option 19), see "CONTOUR TRAIN DATA
(Cycle 270, DIN/ISO: G270, software option 19)", page 210
Cycle 39 CYLINDER SURFACE (software option 1) Contour was
added to the cycle package, see "CYLINDER SURFACE (Cycle
39, DIN/ISO: G139, software option 1)", page 232
The character set of the fixed cycle 225 Engraving was
expanded by the CE, ß and @ characters and the system time,
see "ENGRAVING (Cycle 225, DIN/ISO: G225)", page 286
Cycles 252 to 254 (software option 19)were expanded by the
optional parameter Q439, see "Cycle parameters", page 144
Cycle 22 (software option 19) was expanded by the optional
parameters Q401 and Q404, see "ROUGHING (Cycle 22, DIN/
ISO: G122, software option 19)", page 199
Cycle 484 (software option 17) was expanded by the optional
parameter Q536, see "Calibrating the wireless TT 449 (Cycle
484, DIN/ISO: G484, DIN/ISO: G484, Option 17)", page 483

New and changed cycle functions of software
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New and changed cycle functions of
software 81760x-03
New cycle 258 POLYGON STUD (software option 19)see
"CIRCULAR STUD (cycle 258, DIN/ISO: G258, software option
19)", page 163
In cycle 247: SET DATUM, the datum point can be selected
from the preset table, see "DATUM SETTING (Cycle 247, DIN/
ISO: G247)", page 261
In the cycles 200 and 203 the behavior of the dwell time was
adjusted, see "UNIVERSAL DRILLING (Cycle 203, DIN/ISO:
G203, software option 19)", page 80
Cycle 205 performs deburring on the coordinate surface, see
"UNIVERSAL PECKING (Cycle 205, DIN/ISO: G205, software
option 19)", page 86
In SL cycles, M110 is now accounted for compensated inner
arcs if activated during machining see "SL Cycles", page 188

Fundamentals
New and changed cycle functions of software
14 HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015

HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015 15
Contents
1 Fundamentals / Overviews............................................................................................................45
2 Using Fixed Cycles......................................................................................................................... 49
3 Fixed Cycles: Drilling......................................................................................................................69
4 Fixed Cycles: Tapping / Thread Milling........................................................................................ 99
5 Fixed Cycles: Pocket Milling / Stud Milling / Slot Milling........................................................135
6 Fixed Cycles: Pattern Definitions................................................................................................ 177
7 Fixed Cycles: Contour Pocket......................................................................................................187
8 Fixed Cycles: Cylindrical Surface................................................................................................ 221
9 Fixed Cycles: Contour Pocket with Contour Formula...............................................................239
10 Cycles: Coordinate Transformations........................................................................................... 253
11 Cycles: Special Functions............................................................................................................ 277
12 Using Touch Probe Cycles........................................................................................................... 297
13 Touch Probe Cycles: Automatic Measurement of Workpiece Misalignment.......................... 307
14 Touch Probe Cycles: Automatic Datum Setting........................................................................ 329
15 Touch Probe Cycles: Automatic Workpiece Inspection.............................................................383
16 Touch Probe Cycles: Special Functions......................................................................................427
17 Touch Probe Cycles: Automatic Kinematics Measurement......................................................443
18 Touch Probe Cycles: Automatic Tool Measurement..................................................................475
19 Tables of Cycles............................................................................................................................ 491

Contents
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HEIDENHAIN | TNC 620 | User’s manual for cycle programming | 9/2015 17
1 Fundamentals / Overviews............................................................................................................45
1.1 Introduction............................................................................................................................................46
1.2 Available Cycle Groups.........................................................................................................................47
Overview of fixed cycles........................................................................................................................ 47
Overview of touch probe cycles.............................................................................................................48

Contents
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2 Using Fixed Cycles......................................................................................................................... 49
2.1 Working with fixed cycles....................................................................................................................50
Machine-specific cycles (software option19).......................................................................................... 50
Defining a cycle using soft keys.............................................................................................................51
Defining a cycle using the GOTO function............................................................................................. 51
Calling a cycle......................................................................................................................................... 52
2.2 Program defaults for cycles................................................................................................................. 54
Overview................................................................................................................................................. 54
Entering GLOBAL DEF............................................................................................................................54
Using GLOBAL DEF information............................................................................................................ 55
Global data valid everywhere..................................................................................................................56
Global data for drilling operations...........................................................................................................56
Global data for milling operations with pocket cycles 25x..................................................................... 56
Global data for milling operations with contour cycles...........................................................................57
Global data for positioning behavior....................................................................................................... 57
Global data for probing functions........................................................................................................... 57
2.3 PATTERN DEF pattern definition......................................................................................................... 58
Application...............................................................................................................................................58
Entering PATTERN DEF.......................................................................................................................... 59
Using PATTERN DEF...............................................................................................................................59
Defining individual machining positions..................................................................................................60
Defining a single row..............................................................................................................................60
Defining a single pattern.........................................................................................................................61
Defining individual frames.......................................................................................................................62
Defining a full circle................................................................................................................................ 63
Defining a pitch circle............................................................................................................................. 64
2.4 Point tables............................................................................................................................................ 65
Application...............................................................................................................................................65
Creating a point table............................................................................................................................. 65
Hiding single points from the machining process.................................................................................. 66
Selecting a point table in the program................................................................................................... 66
Calling a cycle in connection with point tables...................................................................................... 67

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3 Fixed Cycles: Drilling......................................................................................................................69
3.1 Fundamentals........................................................................................................................................ 70
Overview................................................................................................................................................. 70
3.2 CENTERING (Cycle 240, DIN/ISO: G240, software option 19).......................................................... 71
Cycle run................................................................................................................................................. 71
Please note while programming:............................................................................................................71
Cycle parameters.................................................................................................................................... 72
3.3 DRILLING (Cycle 200)............................................................................................................................73
Cycle run................................................................................................................................................. 73
Please note while programming:............................................................................................................73
Cycle parameters.................................................................................................................................... 74
3.4 REAMING (Cycle 201, DIN/ISO: G201, software option 19)..............................................................75
Cycle run................................................................................................................................................. 75
Please note while programming:............................................................................................................75
Cycle parameters.................................................................................................................................... 76
3.5 BORING (Cycle 202, DIN/ISO: G202, software option 19).................................................................77
Cycle run................................................................................................................................................. 77
Please note while programming:............................................................................................................78
Cycle parameters.................................................................................................................................... 79
3.6 UNIVERSAL DRILLING (Cycle 203, DIN/ISO: G203, software option 19).........................................80
Cycle run................................................................................................................................................. 80
Please note while programming:............................................................................................................80
Cycle parameters.................................................................................................................................... 81
3.7 BACK BORING (Cycle 204, DIN/ISO: G204, software option 19)......................................................83
Cycle run................................................................................................................................................. 83
Please note while programming:............................................................................................................84
Cycle parameters.................................................................................................................................... 85
3.8 UNIVERSAL PECKING (Cycle 205, DIN/ISO: G205, software option 19)..........................................86
Cycle run................................................................................................................................................. 86
Please note while programming:............................................................................................................87
Cycle parameters.................................................................................................................................... 88

Contents
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3.9 BORE MILLING (Cycle 208, software option 19)................................................................................90
Cycle run................................................................................................................................................. 90
Please note while programming:............................................................................................................91
Cycle parameters.................................................................................................................................... 92
3.10 SINGLE-LIP DEEP-HOLE DRILLING (Cycle 241, DIN/ISO: G241, software option 19)......................93
Cycle run................................................................................................................................................. 93
Please note while programming:............................................................................................................93
Cycle parameters.................................................................................................................................... 94
3.11 Programming Examples....................................................................................................................... 96
Example: Drilling cycles.......................................................................................................................... 96
Example: Using drilling cycles in connection with PATTERN DEF..........................................................97