5 global pr ogr a m set tings (sof tw ar e option) – HEIDENHAIN iTNC 530 (606 42x-02) ISO programming User Manual
Page 379

HEIDENHAIN iTNC 530
379
1
1
.5 Global Pr
ogr
a
m Set
tings (Sof
tw
ar
e Option)
Virtual axis VT
You can also carry out handwheel superimpositioning in the currently 
active tool axis direction. You can use the Virtual Tool axis line (VT).
Values traversed with the handwheel in a virtual axis remain active in 
the default setting even after a tool change. Using the Reset VT value 
function you can specify that the TNC resets to values traversed in VT 
upon tool change:
U
In the global program settings form, move the cursor to Reset VT 
value
and use the SPACE key to activate the function.
You can select the VT axis via a HR 5xx handwheel in order to traverse 
with superimpositioning in the virtual axis direction (see “Selecting the 
axis to be moved” on page 471). Working with the virtual VT axis is 
particularly convenient with the HR 550 FS wireless handwheel (see 
“Traversing with electronic handwheels” on page 466).
The TNC also shows the path traversed in the virtual axis in the 
additional status display (POS tab) in the separate VT position display.
To be able to traverse with the handwheel in the virtual 
axis direction VT you have to enable M128 or FUNCTION 
TCPM
.
You can only move with handwheel superimpositioning in 
the virtual axis direction if DCM is inactive.
Your machine tool builder can provide functions with 
which the procedure can be influenced by the PLC in the 
virtual axis direction.
