Before You Start Working With Touch Probe Cycles; Maximum Traverse To Touch Point: Dist In Touch Probe Table; Set-Up Clearance To Touch Point: Set_Up In Touch Probe Table; Orient The Infrared Touch Probe To The Programmed Probe Direction: Track In Touch Probe Table - HEIDENHAIN TNC 640 User Manual

Using Touch Probe Cycles | Before You Start Working with Touch Probe Cycles
13.2 Before You Start Working with Touch
Probe Cycles
To make it possible to cover the widest possible range of
applications, machine parameters enable you to determine the
behavior common to all touch probe cycles.
Maximum traverse to touch point: DIST in touch probe
table
If the stylus is not deflected within the path defined in DIST, the
TNC outputs an error message.
Set-up clearance to touch point: SET_UP in touch
probe table
In SET_UP you define how far from the defined (or calculated)
touch point the TNC is to pre-position the touch probe. The smaller
the value you enter, the more exactly you must define the touch
point position. In many touch probe cycles you can also define a
set-up clearance that is added to SET_UP.
Orient the infrared touch probe to the programmed
probe direction: TRACK in touch probe table
To increase measuring accuracy, you can use TRACK = ON to
have an infrared touch probe oriented in the programmed probe
direction before every probe process. In this way the stylus is
always deflected in the same direction.
If you change TRACK = ON, you must recalibrate the
touch probe.
HEIDENHAIN | User's manual for cycle programming | 10/2017
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