HEIDENHAIN TNC 620 (340 56x-02) ISO programming User Manual
Page 451

HEIDENHAIN TNC 620
451
Compar
ison: F
unctions of the TNC 620 and the iTNC
530
Comparison: Differences in Manual Operation, 
functionality
Function
TNC 620
iTNC 530
3-D ROT function: Manual deactivation 
of the Tilt working plane function
If the tilted working plane function is 
deactivated for both operating modes, 
the text fields will be filled with zeros 
instead of the current rotary axis 
positions when the 3-D ROT function is 
next called. The positions are entered 
correctly if only one operating mode is 
set to inactive.
The programmed values are displayed 
in the 3-D ROT dialog even if the Tilt 
working plane function is set to 
inactive
for both operating modes.
Jog increment function
The jog increment can be defined 
separately for linear and rotary axes.
The jog increment applies for both 
linear and rotary axes.
Preset table
Basic transformation (translation and 
rotation) of machine table system to 
workpiece system via the columns X, Y 
and Z, as well as spatial angles SPA, SPB 
and SPC.
In addition, the columns X_OFFS to 
W_OFFS
can be used to define the axis
offset of each individual axis. The 
function of the axis offsets can be 
configured.
Basic transformation (translation ) of 
machine table system to workpiece 
system via the columns X, Y and Z, as 
well as a ROT basic rotation in the 
working plane (rotation).
In addition, the columns A to W can be 
used to define datums in the rotary and 
parallel axes.
Behavior during presetting
Presetting in a rotary axis has the same 
effect as an axis offset. The offset is 
also effective for kinematics 
calculations and for tilting the working 
plane.
The machine parameter 
CfgAxisPropKin->presetToAlignAxis
is used to define whether the axis 
offset is to be taken into account 
internally after zero setting.
Independently of this, an axis offset has 
always the following effects:
An axis offset always influences the 
nominal position display of the 
affected axis (the axis offset is 
subtracted from the current axis 
value).
If a rotary axis coordinate is 
programmed in an L block, then the 
axis offset is added to the 
programmed coordinate.
Rotary axis offsets defined by machine 
parameters do not influence the axis 
positions that were defined in the Tilt 
working plane function. 
MP7500 bit 3 defines whether the 
current rotary axis position referenced 
to the machine datum is taken into 
account, or whether a position of 0° is 
assumed for the first rotary axis (usually 
the C axis).
