HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 15)

HEIDENHAIN TNC 426, TNC 430 3
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Touch Probe Cycles in the Manual and Electronic
Handwheel Modes
In the Manual and Electronic Handwheel operating modes, the TNC
provides touch probe cycles that allow you to:
n Calibrate the touch probe
n Compensate workpiece misalignment
n Datum setting
Touch probe cycles for automatic operation
Besides the touch probe cycles, which you can use in the Manual and
Electronic handwheel operating modes, the TNC provides numerous
cycles for a wide variety of applications in automatic operation:
n Calibrating the touch probe (Chapter 3)
n
Compensating workpiece misalignment (Chapter 3)
n
Setting datums (Chapter 3)
n Automatic workpiece inspection (Chapter 3)
n Automatic workpiece measurement (Chapter 4)
n Digitizing with triggering or measuring touch probe (Option, Chapter 5)
You can program the touch probe cycles in the Programming and
Editing operating mode via the TOUCH PROBE key. Like the most
recent fixed cycles, touch probe cycles use Q parameters with
numbers of 400 and above as transfer parameters. Parameters with
the same function that the TNC requires in several cycles always have
the same number: For example, Q260 is always assigned the
clearance height, Q261 the measuring height, etc.
To simplify programming, the TNC shows an illustration during cycle
definition. In the illustration, the parameter that needs to be entered is
highlighted (see figure at right).
To improve clarity, the help illustrations sometimes omit
certain parameters.