HEIDENHAIN TNC 320 Programming Station User manual

TNC 320
Conversational Programming
User's Manual
NC Software
771851-04
771855-04
English (en)
9/2016

Controls of the TNC
Keys
2HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
Controls of the TNC
Keys
Keys on visual display unit
Key Function
Selecting the 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
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 entry /
Incremental values
Q parameter programming /
Q parameter status
Capture actual position
NO
ENT
Skip dialog questions, delete
words
Confirm entry and resume dialog
Conclude block and exit entry
Clear entries or TNC error
message
Abort dialog, delete program
section
Tool functions
Key Function
Define tool data in the program
Call tool data

Keys
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Manage programs and files,
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
Show special functions
Navigation keys
Key Function
Position the cursor
Go directly to blocks, cycles and
parameter functions
Navigate to the program start or
table start
Navigate to the program end or
end of a table line
Navigate up one page
Navigate down one page
Select the next tab in forms
Up/down one dialog box or button
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
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/rounding arc
Potentiometer for feed rate
and spindle speed
Feed rate Spindle speed

Fundamentals

Fundamentals
About this manual
6HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
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 controls
as of the following NC software numbers.
TNC model NC software number
TNC 320 771851-04
TNC 320 Programming Station 771855-04
The machine manufacturer adapts the usable features of the TNC
to his machine by the 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.
TNC functions that may not be available on your machine include:
Tool measurement with the TT
In order to find out about the actual features of your machine,
please contact the machine manufacturer.
Many machine manufacturers, including HEIDENHAIN, offer
programming courses for the TNCs. Participation in one of these
courses is recommended to familiarize yourself thoroughly with the
TNC functions.
Cycle Programming User's Manual:
All of the cycle functions (touch probe cycles and
fixed cycles) are described in the Cycle Programming
User's Manual. If you need this user's manual,
please contact HEIDENHAIN if required. ID:
1096959-xx

Fundamentals
TNC model, software and features
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Software options
The TNC 320 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 conversions:
Tilting the working plane
HEIDENHAIN DNC (option 18)
Communication with external PC applications over COM component
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
Selecting graphical features of contour sections from conversational
programs

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. If you install a software update on your TNC you
do not automatically have the functions available as covered by the
FCL.
All upgrade functions are available to you without
surcharge when you receive a new machine.
Upgrade functions are identified in the manual as FCL n. The n
signifies the serial number of the development status.
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:
Operating mode Programming
MOD function
LICENSE INFO soft key

Fundamentals
TNC model, software and features
10 HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
New functions
New functions 34055x-06
The active tool-axis direction can now be activated in manual
mode and during handwheel superimposition as a virtual tool
axis, see "Superimpose handwheel positioning during program
run: M118 ", page 401
Writing and reading data in freely definable tables, see "Freely
definable tables", page 431
New touch probe Cycle 484 for calibrating the wireless touch
probe TT 449, see Cycle Programming User's Manual
The new HR 520 and HR 550 FS handwheels are supported,
see "Traverse with electronic handwheels", page 479
New operating Cycle 225 Engraving,
see Cycle Programming User's Manual
New manual probing cycle "Center line as datum", see "Setting a
center line as datum ", page 526
New function for rounding corners, see "Rounding corners:
M197", page 408
External access to the TNC can now be blocked with a MOD
function, see "External access", page 581

TNC model, software and features
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Changed functions 34055x-06
The maximum number of characters for the NAME and DOC
fields in the tool table has been increased from 16 to 32, see
"Enter tool data into the table", page 188
Operation and positioning behavior of the manual probing cycles
has been improved, see "Using a 3-D touch probe ", page 501
Predefined values can now be entered into a cycle
parameter with the PREDEF function in cycles,
see Cycle Programming User's Manual
With the KinematicsOpt cycles a new optimization algorithm is
now used, see the Cycle Programming User's Manual
With Cycle 257, CIRCULAR 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 Cycle 256 RECTANGULAR STUD, a parameter is now
available with which you can determine the approach position on
the stud, see Cycle Programming User's Manual
With the manual "Basic Rotation" touch probe cycle, workpiece
misalignment can now be compensated for with a table
rotation, see "Compensation of workpiece misalignment by
rotating the table", page 518

Fundamentals
TNC model, software and features
12 HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
New functions 77185x-01
New special operating mode RETRACT, see "Retraction after a
power interruption", page 566
New graphic simulation, see "Graphics ", page 544
New MOD function "tool usage file" within the machine settings
group, see "Tool usage file", page 584
New MOD function "set system time" within the systems
settings group, see "Set the system time", page 585
New MOD group "graphic settings", see "Graphic settings",
page 580
With the new cutting data calculator you can calculate the
spindle speed and the feed rate, see "Cutting data calculator",
page 166
With the jump commands new if/then decisions have been
introduced, see "Programming if-then decisions", page 325
The character set of machining Cycle 225 Engraving has been
expanded to include more characters and the diameter sign,
see Cycle Programming User's Manual
New machining Cycle 275 Trochoidal Milling,
see Cycle Programming User's Manual
New machining Cycle 233 Face Milling,
see Cycle Programming User's Manual
In drilling Cycles 200, 203 and 205, the parameter Q395 DEPTH
REFERENCE has been introduced in order to evaluate the T
ANGLE, see Cycle Programming User's Manual
Probing Cycle 4 MEASURING IN 3-D has been introduced,
see Cycle Programming User's Manual

TNC model, software and features
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Modified functions 77185x-01
Up to 4 M functions are now allowed in an NC block, see
"Fundamentals", page 388
New soft keys for transferring values have been introduced in
the pocket calculator, see "Operation", page 163
The distance-to-go display can now also be displayed in the
input system, see "Select the position display", page 586
Several input parameters have been added to
Cycle 241 SINGLE-LIP DEEP HOLE DRILLING,
see Cycle Programming User's Manual
Parameter Q305 NUMBER IN TABLE has been added to Cycle
404, see Cycle Programming User's Manual
In the thread milling Cycles 26x, an approaching feed rate has
been introduced, see Cycle Programming User's Manual
In Cycle 205 Universal Deep Hole Drilling you can now
use parameter Q208 to define a feed rate for retraction,
see Cycle Programming User's Manual

Fundamentals
TNC model, software and features
14 HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
New functions 77185x-02
Programs with .HU and .HC extensions can be selected and
processed in all operating modes
The functions SELECT PROGRAM and CALL SELECTED
PROGRAM have been introduced, see "Calling any program as a
subprogram", page 303
New FEED DWELL function for programming repeating dwell
times, see "Dwell time FUNCTION FEED", page 439
The FN18 functions have been expanded, see "FN 18: SYSREAD
– Reading system data", page 338
USB data carriers can be locked with the SELinux security
software, see "SELinux security software", page 94
The machine parameter posAfterContPocket (no. 201007) that
influences positioning after an SL cycle has been introduced,
see "Machine-specific user parameters", page 610
Protective zones can be defined in the MOD menu, see
"Entering traverse limits", page 583
Write protection is possible for single lines in the preset table,
see "Saving the datums in the preset table", page 492
New manual probing function for aligning a plane, see
"Measuring 3-D basic rotation", page 519
New function for aligning the machining plane without
rotary axes, see "Tilt the working plane without rotary axes",
page 468
CAD files can be opened without option number 42, see "CAD
viewer", page 277
New software option number 93 Extended Tool
Management,see "Calling tool management", page 213

TNC model, software and features
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Modified functions 77185x-02
FZ and FU feed rate input possible in the Tool Call block, see
"Call tool data", page 201
The input range of the DOC column in the pocket table has
been expanded to 32 characters, see "Pocket table for tool
changer", page 198
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,
see "Comparison: Miscellaneous functions", page 648
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, see "Saving the datums in the preset table",
page 492
The input range of the Q parameter list for defining the QPARA
tab on the status display consists of 132 input positions, see
"Displaying Q parameters (QPARA tab)", page 87
Manual calibration of the touch probe with fewer pre-positioning
movements, see "Calibrating 3-D touch probes ", page 509
The position display takes into account the DL oversizes
programmed in the Tool Call block, selectable as an oversize of
the workpiece or tool, see "Delta values for lengths and radii",
page 187
In single block mode the control executes each point individually
with point pattern cycles and CYCL CALL PAT, see "Program
run", page 560
Rebooting the control is no longer possible with the END key
but with the RESTART soft key, see "Switch-off", page 476
The control displays the contouring feed rate in manual mode,
see "Spindle speed S, feed rate F and miscellaneous function
M", page 489
Deactivate tilting in manual mode is only possible via the 3D-
ROT menu, see "Activating manual tilting:", page 533
Machine parameter maxLineGeoSearch (no. 105408) has
been increased to max. 50000, see "Machine-specific user
parameters", page 610
The name of software option number 8 has changed, see
"Software options", page 8

Fundamentals
TNC model, software and features
16 HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
New and modified cycle functions 77185x-02
Cycle 270 CONTOUR TRAIN DATA has been added
Cycle 39 CYL. SURFACE CONTOUR has been added (option 1)
The character set of Machining Cycle 225 ENGRAVING has been
expanded with the CE character, ß, the @ character and system
time
Cycles 252-254 have been expanded with the optional
parameter Q439
Cycle 22 ROUGH-OUT has been expanded by the optional
parameters Q401, Q404
Cycle 484 CALIBRATE IR TT has been expanded by the optional
parameter Q536
Further information: Cycle Programing User's Manual

TNC model, software and features
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New functions 77185x-04
New function FUNCTION DWELL for programming a dwell time,
see "Dwell time FUNCTION DWELL", page 441
New function FUNCTION S-PULSE for programming pulsing
shaft speeds, see "Pulsing spindle speed FUNCTION S-PULSE",
page 437
The column KINEMATIC has been added to the tool table, see
"Enter tool data into the table", page 188
The column OVRTIME has been added to the tool table, see
"Enter tool data into the table", page 188
When importing tool data the CSV file may contain additional
table columns not recognized by the control. During import a
message is displayed indicating the unrecognized columns and
informing that these values will not be adopted, see "Import and
export tool data", page 219
Manual probe functions create a line in the preset table that
does not yet exist, see "Writing measured values from the touch
probe cycles to the preset table", page 508
Manual probe functions can write in a password-protected line,
see "Recording measured values from the touch probe cycles",
page 506
During a manual touch probe cycle, control can be transferred
to the handwheel, see "Traverse movements with a handwheel
with display", page 502
Several handwheels can be connected to a control, see
"Traverse with electronic handwheels", page 479
In Electronic handwheel mode of operation, the handwheel
axis for an HR 130 can be selected with the orange axis keys
If the control is set to the INCH unit of measure, the control also
includes movements traversed by the handwheel in INCHES,
see "Traverse with electronic handwheels", page 479
The control differentiates between interrupted or stopped NC
programs. In the interrupted status, the control offers more
intervention options, see "Interrupt, stop or abort machining",
page 561
The software option number 42 DXF Converter now also
produces CR circles, see "Basic settings", page 280
With active structuring the structure block can be edited in the
structure window, see "Definition and applications", page 161
Animated help can be selected with the tilt working plane
function, see "Overview", page 446
The FN18 functions have been expanded, see "FN 18: SYSREAD
– Reading system data", page 338
The FN16 functions have been expanded, see "FN16: F-PRINT –
Formatted output of text and Q parameter values", page 333
The file saved with SAVE AS is now also found in the file
management under LAST FILES, see "Editing a program",
page 124
If you save files with SAVE AS, you can select the target
directory with the SWITCH soft key, see "Editing a program",
page 124

Fundamentals
TNC model, software and features
18 HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
It is possible to search quickly for a file in file management by
entering the first letter, see "Selecting drives, directories and
files", page 135
File management displays vertical scrollbars and supports
scrolling with the mouse, see "Calling the file manager",
page 134
New machine parameter for recreating M7 and M8, see
"Machine-specific user parameters", page 610
New machine parameter for deactivating parallel axis
programming, see "Working with the parallel axes U, V and W",
page 417
The function STRLEN checks whether a string parameter has
been defined, see "Finding the length of a string parameter",
page 371
The function SYSSTR enables the NC software version to be
read out, see "Reading system data", page 368
The function FN 38: SEND can now be programmed without a
code number
Undefined Q parameters can now be transferred with the
function FN 0
For jumps with FN 9, QS parameters and texts are permitted as
conditions, see "Programming if-then decisions", page 325
Cylindrical workpiece blanks can now also be defined with a
diameter instead of a radius, see "Define the blank: BLK FORM",
page 117
The transitional elements RND and CHF can now also be
executed between 3-D contours, i.e. with straight line blocks
with three programmed coordinates or a helix
The control now supports spatial arcs, i.e. circles in 3 axes
vertical to the working plane, see "Circular path C around circle
center CC", page 245
Active kinematics is displayed in the 3D-ROT menu, see
"Activating manual tilting:", page 533
In operating modes Program run, single block and Program
run, full sequence the screen layout PROGRAM + SECTS can be
specified, see "Structuring programs", page 161
In operating modes Program run full sequence, Program run
single block and Positioning with manl.data input, the font
size can be set to the same size as the Programming operating
mode, see "Machine-specific user parameters", page 610
The functions in the Positioning with manl.data input mode
were expanded and adapted for improved operation, see
"Positioning with Manual Data Input", page 537
Active kinematics is displayed in the operating mode RETRACT,
see "Retraction after a power interruption", page 566
In RETRACT operating mode, feed-rate limitation can be
deactivated with the soft key CANCEL THE FEED RATE
LIMITATION, see "Retraction after a power interruption",
page 566
In Test run operating mode a tool usage file can also be created
without simulation, see "Tool usage test", page 205

TNC model, software and features
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In Test run operating mode the soft keyFMAX PATHS hides
the rapid traverse movements, see "3-D view in the Test Run
operating mode", page 548
In Test run operating mode the soft keyRESET THE VOLUME
MODEL resets the solid model, see "3-D view in the Test Run
operating mode", page 548
In Test run operating mode the soft keyRESET TOOL PATHS
resets the tool paths, see "3-D view in the Test Run operating
mode", page 548
In Test run operating mode the soft key MEASURING displays
the coordinates if you position the mouse on the graphics, see
"3-D view in the Test Run operating mode", page 548
In Test run operating mode the soft key STOP AT simulates
up to a predefined block, see "Test run up to a certain block ",
page 559
Active basic transformation is shown in the status display on the
POS tab, see "Positions and coordinates (POS tab)", page 85
The status display now also shows the path of the active main
program, see "Overview", page 83, see "General program
information (PGM tab)", page 83
In the status display the CYC tab now also shows T-Max and
TA-Max
Mid-program startup can now be continued, see "Any entry into
program: Mid-program startup", page 569
With functions NC/PLC Backup and NC/PLC Restore you can
save and restore single directories or the complete TNC drive,
see "Backup and restore", page 97

Fundamentals
TNC model, software and features
20 HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
Modified functions 77185x-04
When editing the tool table or tool management, only the
current table line is blocked, see "Editing the tool table",
page 192
When importing tool tables, nonexistent tool types are imported
as type undefined, see "Importing tool tables", page 195
Tool names can now also include the special characters %and ,,
see "Tool number, tool name", page 186
When importing tool tables the numerical values are adopted
from the R-OFFS column, see "Importing tool tables",
page 195
In the LIFTOFF column of the tool table the default is now N,
see "Enter tool data into the table", page 188
The Land Rcolumns of the tool table are empty when a new
tool is created, see "Editing the tool table", page 192
In the tool table for the RT and KINEMATIC columns, the SELECT
soft key is now available, see "Enter tool data into the table",
page 188
You cannot delete the tool data of tools still stored in the pocket
table, see "Editing the tool table", page 192
The touch probe function Corner as preset has been expanded,
see "Corner as datum ", page 522
In all manual probing functions, quicker selection of the start
angle of holes and studs is possible with soft keys (paraxial
probing directions), see "Functions in touch probe cycles",
page 503
When probing, after acceptance of the actual value of the 1st
point, for the 2nd point the soft key for the axis direction is
shown
In all manual probing functions, the direction of the reference
axis is suggested as a default
The arrangement of soft keys in the manual probing cycle
PROBING P has been adapted, see "Corner as datum ",
page 522
In manual probing cycles the hard keys END and ADOPT
ACTUAL POSITION may be used
The display of the machining feed rate has been changed
in manual mode, see "Spindle speed S, feed rate F and
miscellaneous function M", page 489
The FMAX soft key in Program Run not only limits the machining
feed rate during execution of the program but also the axis feed
rate for manual axis movements, see "Feed rate limit F MAX",
page 490
Soft key allocations were adapted for incremental positioning
The values entered for the traverse limits are checked for
validity, see "Entering traverse limits", page 583
When the preset table is opened the cursor is on the line of the
active preset
The input range in columns SPA, SPB and SPC in the
preset table has been expanded to 999,9999, see "Datum
management with the preset table", page 491
New help graphics with PLANE RESET, see "Specifying the
positioning behavior of the PLANE function", page 461