Siemens SINUMERIK 840D Function Manual page 718

H1: Manual traversing
17.13 Use of handwheels in automatic mode
Figure 17-10
Display
The axis actual-position display (ACTUAL POSITION) does not change while an axis is being
traversed with the handwheel via DRF. The current axis DRF offset can be displayed in the DRF
window.
Reference point approach
In phase 1 of the machine-axis reference point approach, the DRF offset for the corresponding
geometry or auxiliary axis is deleted.
During the machine-axis reference point approach, a DRF offset for the corresponding
geometry or auxiliary axis cannot be performed simultaneously.
Reset behavior
PowerOn-Reset: The DRF offset is deleted.
718
Control of DRF offset
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA