HEIDENHAIN TNC 620 User Manual page 41

Basic information | Control model, software and features
In Cycle 224 DATAMATRIX CODE PATTERN (ISO: G224, option 9),
you can output the following system data as variables:
Current date
Current time
Current calendar week number
Name and path of an NC program
Current count
Cycle 225 ENGRAVING (ISO: G225) has been enhanced:
The parameter Q202 MAX. PLUNGING DEPTH allows you to
define the maximum plunging depth.
The parameter Q367 TEXT POSITION now includes the
input options 7, 8 and 9. With these values, you can set the
reference of the engraving text onto the horizontal centerline.
The approach behavior was changed. If the tool is below the
2ND SET-UP CLEARANCE, the control first positions to the
2nd set-up clearance Q204 and then to the starting position in
the machining plane.
If, in Cycle 233 FACE MILLING (ISO: G233, option 19), the
parameter Q389 has been defined with the value 2 or 3 and
a lateral limit has been defined in addition, then the control
approaches the contour or departs from it on an arc with Q207
FEED RATE MILLING.
If a measurement in Cycle 238 MEASURE MACHINE STATUS (ISO:
G238, option 155) was not performed correctly, for example at a
feed rate override of 0 %, you can repeat the cycle.
Cycle 240 CENTERING (ISO: G240, option 19) has been enhanced
in order to consider pre-drilled diameters.
The following parameters have been added:
Q342 ROUGHING DIAMETER
Q253 F PRE-POSITIONING: If parameter Q342 is defined, feed
rate for approaching the recessed starting point
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
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