452  Manual Operation and Setup
14.2 Moving the Machine Axes
Entering the spindle speed S
U Press the handwheel soft key F3 (MSF).
U Press the handwheel soft key F2 (S).
U Select the desired speed by pressing the F1 or F2 key. If you press 
and hold the respective key, each time it reaches a decimal value 0 
the TNC increases the counting increment by a factor of 10. If in 
addition you press the CTRL key, the counting increment increases 
to 1000.
U Activate the new speed S with the NC start key.
Entering the feed rate F
U Press the handwheel soft key F3 (MSF).
U Press the handwheel soft key F3 (F).
U Select the desired feed rate by pressing the F1 or F2 key. If you 
press and hold the respective key, each time it reaches a decimal 
value 0 the TNC increases the counting increment by a factor of 10. 
If in addition you press the CTRL key, the counting increment 
increases to 1000.
U Confirm the new feed rate F with the handwheel soft key F3 (OK).
Datum setting
U Press the handwheel soft key F3 (MSF).
U Press the handwheel soft key F4 (PRS).
U If required, select the axis in which the datum is to be set.
U Reset the axis with the handwheel soft key F3 (OK), or with F1 
and F2 set the desired value and then confirm with F3 (OK). By 
also pressing the CTRL key, you can increase the counting 
increment to 10.
Changing Modes of Operation
With the handwheel soft key F4 (OPM), you can use the handwheel to 
switch the mode of operation, provided that the current status of the 
control allows a mode change.
U Press the handwheel soft key F4 (OPM).
U Select the desired operating mode by handwheel soft key
 MAN: Manual Operation
 MDI: Positioning with Manual Data Input
 SGL: Program Run, Single Block
 RUN: Program Run, Full Sequence