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TNC 620
User's Manual
HEIDENHAIN
Conversational Programming
NC Software
817600-02
817601-02
817605-02
English (en)
2/2015
Controls of the TNC
2TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 2/2015
Controls of the TNC
Keys on visual display unit
Key Function
Select split screen layout
Toggle the display between
machining and programming
modes
Soft keys for selecting functions on
screen
Shifting between soft-key rows
Machine operating modes
Key Function
Manual operation
Electronic handwheel
Positioning with manual data input
Program run, single block
Program run, full sequence
Programming modes
Key Function
Programming
Test run
Program/file management,
TNC functions
Key Function
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, call TNCguide
Display all current error messages
Show calculator
Navigation keys
Key Function
Move highlight
Go directly to blocks, cycles and
parameter functions
Potentiometer for feed rate
and spindle speed
Feed rate Spindle speed
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Cycles, subprograms and
program section repeats
Key Function
Define touch probe cycles
Define and call cycles
Enter and call labels for
subprogramming and program
section repeats
Enter program stop in a program
Tool functions
Key Function
Define tool data in the program
Call tool data
Programming path movements
Key Function
Approach/depart contour
FK free contour programming
Straight line
Circle center/pole for polar
coordinates
Circular arc with center
Circle with radius
Circular arc with tangential
connection
Chamfer/Corner rounding
Special functions
Key Function
Show special functions
Select the next tab in forms
Up/down one dialog box or button
Entering and editing coordinate
axes and numbers
Key Function
. . .
Select coordinate axes or enter
them in a program
. . .
Numbers
Decimal point / Reverse algebraic
sign
Polar coordinate input /
Incremental values
Q-parameter programming/
Q-parameter status
Save actual position or values from
calculator
NO
ENT
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
Controls of the TNC
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Fundamentals
Fundamentals
About this manual
6TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 2/2015
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.
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 a possibly dangerous situation
that may cause injuries if not avoided.
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
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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 817600-02
TNC 620 E 817601-02
TNC 620 Programming Station 817605-02
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 for Cycle Programming:
All of the cycle functions (touch probe cycles and
fixed cycles) are described in the Cycle Programming
User’s Manual. Please contact HEIDENHAIN if you
require a copy of this User's Manual. ID: 1096886-xx
Fundamentals
TNC model, software and features
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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 number 18)
Communication with external PC applications over COM component
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
TNC model, software and features
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Advanced Programming Features (option 19)
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 22)
Pallet management
Display Step (option 23)
Display step Input resolution:
Linear axes down to 0.01 µm
Rotary axes to 0.00001°
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
Fundamentals
TNC model, software and features
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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 141)
Compensation of axis couplings Determination of dynamically caused position deviation through axis
acceleration
Compensation of 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 145)
Active chatter control Fully automatic function for chatter control during machining
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 soft key
Fundamentals
TNC model, software and features
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New functions
New functions 73498x-02
DXF files can be opened directly on the TNC in order to extract
contours and point patterns ("Programming: Data transfer from
CAD files", page 253).
The active tool-axis direction can now be activated in manual
mode and during handwheel superimposition as a virtual tool axis
("Superimposing handwheel positioning during program run: M118
(Miscellaneous Functions software option)", page 376).
Writing and reading data in freely definable tables ("Freely definable
tables", page 403).
New touch probe cycle 484 for calibrating the wireless TT 449 tool
touch probe (see User's Manual for Cycles).
The new HR 520 and HR 550 FS handwheels are supported
("Traverse with electronic handwheels", page 469).
New machining cycle 225 ENGRAVING (see User’s Manual for
Cycle Programming)
New Active Chatter Control (ACC) software option ("Active Chatter
Control ACC (option 145)", page 387).
New manual probing cycle "Center line as datum" ("Setting a center
line as datum ", page 519).
New function for rounding corners ("Rounding corners: M197",
page 382).
External access to the TNC can now be blocked with a MOD
function ("External access", page 569).
TNC model, software and features
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Changed functions 73498x-02
The maximum number of characters for the NAME and DOC fields
in the tool table has been increased from 16 to 32 ("Enter tool data
into the table", page 170).
The columns ACC were added to the tool table ("Enter tool data
into the table", page 170).
Operation and positioning behavior of the manual probing
cycles has been improved ("Using 3-D touch probes (option 17)",
page 495).
Predefined values can now be entered into a cycle parameter
with the PREDEF function in cycles (see User’s Manual for Cycle
Programming).
A new optimization algorithm is now used with the KinematicsOpt
cycles (see User’s Manual for Cycle Programming).
With Cycle 257, Circular Stud Milling, a parameter is now available
with which you can determine the approach position on the stud
(see User's Manual for Cycle Programming)
With Cycle 256, Rectangular Stud, a parameter is now available
with which you can determine the approach position on the stud
(see User's Manual for Cycle Programming).
With the "Basic Rotation" probing cycle, workpiece misalignment
can now be compensated for via a table rotation ("Compensation of
workpiece misalignment by rotating the table", page 511)
Fundamentals
TNC model, software and features
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New functions 81760x-01
New special operating mode ("Retraction after a power
interruption", page 556).
New graphic simulation ("Graphics (option 20)", page 536).
New MOD function "tool usage file" within the machine settings
group ("Tool usage file", page 570).
New MOD function "set system time" within the systems settings
group ("Set the system time", page 571).
New MOD group "graphic settings" ("Graphic settings",
page 568).
With the new cutting data calculator you can calculate the spindle
speed and the feed rate ("Cutting data calculator", page 146).
Now you can activate and deactivate the active chatter
compensation (ACC) by soft key ("Activating/deactivating ACC",
page 388).
New if/then decisions were introduced in the jump commands
("Programming if-then decisions", page 304).
The character set of the fixed cycle 225 Engraving was expanded
by more characters and the diameter sign (see User's Manual for
Cycle Programming).
New fixed cycle 275 Trochoidal Milling (see User’s Manual for Cycle
Programming)
New fixed cycle 233 ENGRAVING (see User’s Manual for Cycle
Programming)
In the drilling cycles 200, 203 and 205 the parameter Q395 DEPTH
REFERENCE was introduced in order to evaluate the T ANGLE (see
User's Manual for Cycle Programming).
The probing cycle 4 MEASURING IN 3-D was introduced (see
User's Manual for Cycle Programming).
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Changed functions 81760x-01
Now up to 4 functions are allowed in an NC block ("Fundamentals",
page 364).
New soft keys for value transfer have been introduced in the pocket
calculator ("Operation", page 143).
The distance-to-go display can now also be displayed in the input
system ("Select the position display", page 572).
Cycle 241 SINGLE-LIP DEEP HOLE DRILLING was expanded
by several input parameters (see User's Manual for Cycle
Programming).
Cycle 404 was expanded by the parameter Q305 NUMBER IN
TABLE (see User's Manual for Cycle Programming).
In the thread milling cycles 26x an approaching feed rate was
introduced (see User's Manual for Cycle Programming).
In Cycle 205 Universal Pecking you can now use parameter Q208
to define a feed rate for retraction (see User's Manual for Cycle
Programming).
Fundamentals
TNC model, software and features
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New functions 81760x-02
Programs with .HU and .HC endings can be selected and
processed in all operating modes.
The functions and have been added ("Calling any program as a
subprogram", page 281).
New FEED DWELL function for programming repeating dwell times
("Dwell time FUNCTION FEED DWELL", page 409).
The FN 18 functions have been expanded ("FN 18: SYSREAD:
Reading system data", page 316).
USB data carriers can be locked with the SELinux security software
("SELinux security software", page 90).
The posAfterContPocket machine parameter has been added that
influences positioning after an SL cycle ("Machine-specific user
parameters", page 596).
Protective zones can be defined in the MOD menu ("Entering
traverse limits", page 569).
Write protection is possible for single lines in the preset table
("Saving the datums in the preset table", page 486).
New manual probing function for aligning a plane ("Measuring 3-D
basic rotation", page 513).
New function for aligning the machining plane without rotary axes
("Tilt the working plane without rotary axes", page 434).
CAD files can be opened without Option 42 ("CAD viewer",
page 255).
New Software Option 93 Extended Tool Management ("Tool
management (Option 93)", page 188).
TNC model, software and features
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Modified functions 81760x-02
FZ and FU feed rate input possible in the Tool Call block ("Call tool
data", page 182).
The input range of the DOC column in the pocket table has
been expanded to 32 characters ("Pocket table for tool changer",
page 179).
Commands FN 15, FN 31, FN 32, FT and FMAXT from predecessor
controls no longer generate ERROR blocks during import. When
simulating or running an NC program with these commands, the
control interrupts the NC program with an error message that helps
you to find an alternative implementation.
Miscellaneous functions M104, M105, M112, M114, M124, M134,
M142, M150, M200 - M204 from predecessor controls no longer
generate ERROR blocks during import. When simulating or running
an NC program with these miscellaneous functions, the control
interrupts the NC program with an error message that helps you
to find an alternative implementation ("Comparison: Miscellaneous
functions", page 635).
The maximum file size of files output with FN 16: F-PRINT has been
increased from 4 kB to 20 kB.
The Preset.PR preset table is write-protected in Programming
operating mode ("Saving the datums in the preset table",
page 486).
The input range of the Q parameter list for defining the QPARA tab
on the status display consists of 132 input positions ("Displaying Q
parameters (QPARA tab)", page 82).
Manual calibration of the touch probe with fewer pre-positioning
movements ("Calibrating a 3-D touch trigger probe (option 17)",
page 502).
The position display takes into account the DL oversizes
programmed in the Tool Call block, selectable as an oversize of the
workpiece or tool ("Delta values for lengths and radii", page 169).
In single blocks, the control executes each point individually
with point pattern cycles and CYCL CALL PAT ("Program run",
page 551).
Rebooting the control is no longer possible with the END key, but
with the soft key ("Switch-off", page 466).
The control displays the contouring feed rate in manual mode
("Spindle speed S, feed rate F and miscellaneous function M",
page 479).
Deactivate tilting in manual mode is only possible via the 3D-ROT
menu ("To activate manual tilting:", page 526).
The machine parameter maxLineGeoSearch has been increased
to a maximum of 50000 ("Machine-specific user parameters",
page 596).
The names of Software Options 8, 9 and 21 have been changed
("Software options", page 8).
Fundamentals
TNC model, software and features
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New and modified cycle functions 81760x-02
New cycle 239 for LAC (Load Adapt. Control) load-dependent
adaptation of control parameters (Option 143), see "ASCERTAIN
THE LOAD (Cycle 239, DIN/ISO: G239, software option 143)"
Cycle 270 CONTOUR TRAIN DATA has been added (Option 19),
see "CONTOUR TRAIN DATA (Cycle 270, DIN/ISO: G270, software
option 19)"
Cycle 39 has been added (Option 1), see "CYLINDER SURFACE
(Cycle 39, DIN/ISO: G139, software option 1)"
The character set of machining cycle 225 has been expanded
with the CE character, ß, the @ character and system time, see
"ENGRAVING (Cycle 225, DIN/ISO: G225)"
Cycles 252-254 (Option 19) have been expanded with the optional
parameter Q439
Cycle 22 (Option 19) has been expanded with the optional
parameters Q401, Q404, see "ROUGHING (Cycle 22, DIN/
ISO: G122, software option 19)"
Cycle 484 (Option 17) has been expanded with the optional
parameter Q536, see "Calibrating the wireless TT 449 (Cycle 484,
DIN/ISO: G484, DIN/ISO: G484, Option 17)"
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Contents
1 First steps with the TNC 620........................................................................................................49
2 Introduction.....................................................................................................................................69
3 Programming: Fundamentals, file management.........................................................................93
4 Programming: Programming aids.............................................................................................. 137
5 Programming: Tools..................................................................................................................... 165
6 Programming: Programming contours...................................................................................... 201
7 Programming: Data transfer from CAD files..............................................................................253
8 Programming: Subprograms and program section repeats.................................................... 273
9 Programming: Q parameters.......................................................................................................293
10 Programming: Miscellaneous functions.....................................................................................363
11 Programming: Special functions.................................................................................................383
12 Programming: Multiple axis machining.....................................................................................411
13 Programming: Pallet editor......................................................................................................... 457
14 Manual operation and setup.......................................................................................................463
15 Positioning with Manual Data Input.......................................................................................... 529
16 Test run and program run........................................................................................................... 535
17 MOD functions..............................................................................................................................565
18 Tables and overviews...................................................................................................................595
Contents
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