Siemens SINUMERIK 840D sl Operating Manual page 62

Setting up the machine
2.4 Settings for the machine
Procedure
...
Resetting the actual value
NOTICE
Irreversible active work offset
The current active work offset is irreversibly deleted by this action.
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1. Select the "JOG" mode in the "Machine" operating area.
2. Press the "Set WO" softkey.
- OR -
Press the ">>", "REL act. vals" and "Set REL" softkeys to set position
values in the relative coordinate system.
3. Enter the new required position value for X, Y or Z directly in the actual
value display (you can toggle between the axes with the cursor keys)
and press the "Input" key to confirm the entries.
- OR -
Press softkeys "X=0","Y=0" or "Z=0" to set the relevant position to zero.
- OR -
Press softkey "X=Y=Z=0" to set all axis positions to zero simultaneously.
Press the "Delete active WO" softkey.
The offset is deleted permanently.
Operating Manual, 02/2011, 6FC5398-6AP40-0BA0
Universal