Trumpf KF023, Operator'S Manual

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A red light spot or a red light ring is visible in the processing
plane when the pilot laser is activated:
■ a light spot when the focal point is on the surface of the
workpiece.
■ a light ring when the focal point is below or above the sur-
face of the workpiece.
The deflection of the light spot or the light ring from the center
of the processing field corresponds to the current position of the
scanner mirror.
The pilot laser and the working laser have different wavelengths.
The focusing lens of the focusing optics is optimized for the
wavelength of the working laser.
As a result, the light spot of the pilot laser can deviate from the
position of the weld point.
The sensors of the process diagnosis module deliver parame-
ters which can be used for evaluation of the welding process.
2.1 Protective glass
LLK protective glass
1 LLK protective glass
Fig. 112306
During operation, the LLK protective glass monitoring module
monitors the scattered light of the LLK protective glass. In case
of impermissibly high values, a warning or error message is
sent. In addition, the laser is switched off.
3 ‐ 10
Parts 2022-03 12-29-01-A1-CRen
Deviations
Process diagnosis module
LLK Protective glass
monitoring