Preset In Touch Probe Axis (Cycle 417, Din/Iso: G417); Cycle Run; Please Note While Programming - HEIDENHAIN TNC 640 User Manual

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Touch Probe Cycles: Automatic Presetting | PRESET IN TOUCH PROBE AXIS (Cycle 417, DIN/ISO: G417)

15.11 PRESET IN TOUCH PROBE AXIS (Cycle

417, DIN/ISO: G417)

Touch Probe Cycle 417 measures any coordinate in the touch probe

axis and defines it as preset. If desired, the TNC can also enter the

measured coordinate in a datum table or preset table.

1 Following the positioning logic, the TNC positions the touch

probe at rapid traverse (value from FMAX column) (See

"Executing touch probe cycles", page 497) to the programmed

touch point 1. The TNC offsets the touch probe by the safety

clearance in the positive direction of the touch probe axis.

2 Then the touch probe moves in its own axis to the coordinate

entered as starting point

with a simple probing movement.

3 Finally the TNC returns the touch probe to the clearance height

and processes the determined preset depending on the cycle

parameters Q303 and Q305 (See "Characteristics common to

all touch probe cycles for presetting", page 528) and saves the

actual value in the Q parameters listed below.

Parameter number

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

Before a cycle definition you must have programmed a

tool call to define the touch probe axis.

The TNC then sets the preset in this axis.

and measures the actual position

Actual value of measured point

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