HEIDENHAIN TNC 426 PB/M Technical Manual page 37

User functions
Coordinate transformation
Touch probe cycles
Q parameters — programming
with variables
Programming aids
Actual position capture
Test graphics — display modes
Programming graphics
Program run graphics — display
modes
Machining time
Returning to the contour
Datum tables
Pallet tables
December 2001
TNC 426 and TNC 430
n
Datum shift, rotation, mirroring
n
Scaling factor (axis specific)
n
Tilting the working plane
n
Touch probe calibration
n
Compensating workpiece tilt manually and automatically
n
Setting the datum manually and automatically
n
Automatic workpiece measurement
n
Cycles for automatic tool measurement
n
Digitizing cycles
Mathematical functions =, +, –, *, /, sin α, cos α, angle α from
n
sin α and cos α,
Logical comparisons (=, =/, <, >,)
n
n
Parentheses
tan α, arc sin, arc cos, arc tan, a
n
number, constant π, negation, truncation before or after decimal
point
n
Pocket calculator
n
Structuring of part programs
n
Graphic support for the programming of cycles
Actual positions can be transferred directly into the part program
Graphical simulation before a program run:
n
Plan view
n
Projection in three planes
n
3-D view
n
Magnification of details
In the Programming and Editing operating mode, the contours of
the NC blocks are drawn while they are being entered (2-D pencil-
trace graphics)
Graphic simulation during real-time machining:
n
Plan view
n
Projection in three planes
n
3-D view
n
Calculation of approximate machining time in the Test Run mode
of operation
n
Display of the current machining time in the Program Run modes
of operation
n
Mid-program startup in any block in the program, returning the
tool to the calculated nominal position to continue machining
n
Program interruption, contour departure and return
Multiple datum tables, each with 254 datums
Multiple pallet tables with any number of entries for selection of
pallets, part programs and datums
Brief Description
2 2
a ,
a + b
n n
, e , ln, log, absolute value of a
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