Datum Shift (Cycle 7, Din/Iso: G54); Effect; Cycle Parameters - HEIDENHAIN TNC 620 User Manual

11.2

DATUM SHIFT (Cycle 7, DIN/ISO: G54)

Effect

A DATUM SHIFT allows machining operations to be repeated at
various locations on the workpiece.
When the DATUM SHIFT cycle is defined, all coordinate data is
based on the new datum. The TNC displays the datum shift in each
axis in the additional status display. Input of rotary axes is also
permitted.
Resetting
Program a datum shift to the coordinates X=0, Y=0 etc. directly
with a cycle definition.
Call a datum shift to the coordinates X=0; Y=0 etc. from a
datum table.

Cycle parameters

Datum shift: Enter the coordinates of the new
datum. Absolute values are referenced to the
manually set workpiece datum. Incremental values
are always referenced to the datum which was last
valid—this can be a datum which has already been
shifted. Input range: Up to six NC axes, each from
–99999.9999 to 99999.9999
TNC 620 | User's Manual Cycle Programming | 3/2014
DATUM SHIFT (Cycle 7, DIN/ISO: G54) 11.2
NC blocks
13 CYCL DEF 7.0 DATUM
14 CYCL DEF 7.1 X+60
15 CYCL DEF 7.2 Y+40
16 CYCL DEF 7.3 Z-5
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