Please Note While Programming - HEIDENHAIN TNC 640 User Manual

Hide thumbs Also See for TNC 640:

Table of Contents

Touch Probe Cycles: Automatic Presetting | PRESET FROM INSIDE OF CIRCLE (Cycle 412, DIN/ISO: G412)

Please note while programming:

The smaller the angle increment Q247 , the less

accurately the TNC can calculate the preset.

Minimum input value: 5°

Program a stepping angle to be less than 90°; input

range -120° to 120°

Danger of collision!

Cycles for coordinate transformation must not be active during

execution of the touch probe cycles.

Do not activate the following cycles before using touch probe

cycles: Cycle 7 DATUM SHIFT,Cycle 8 MIRROR IMAGE, Cycle

10 ROTATION,Cycle 11 SCALING and 26 AXIS-SPECIFIC

Reset any coordinate transformations beforehand

Danger of collision!

To prevent a collision between the touch probe and the

workpiece, enter a

estimate for the nominal diameter of the

pocket (or hole). If the dimensions of the pocket and the safety

clearance do not permit pre-positioning in the proximity of the

touch points, the TNC always starts probing from the center of

the pocket. In this case the touch probe does not return to the

clearance height between the four measuring points.

Positioning of the touch points

Before a cycle definition you must have programmed a tool

call to define the touch probe axis.

HEIDENHAIN | User's manual for cycle programming | 10/2017