Siemens SINUMERIK 840D SL Operating Manual page 85

Calibrating a length
Milling
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
4. Select the "JOG" mode in the "Machine" operating area.
5. Press the "Workpiece zero" and "Probe calibration" softkeys.
The window "Calibration: Probe" is opened.
6. Press the "Radius" softkey.
7. In ∅, enter the calibration bore corresponding to the diameter.
8. Press the <CYCLE START> key.
The calibration starts.
When calibrating the radius, the exact hole center point is determined
first. Then the four trigger points on the inside wall of the hole are
approached.
This procedure is carried out automatically twice: First with 180° (to the
starting position of the working spindle) and then in its starting position.
9. Move the workpiece probe over the surface.
10. Select operating mode "JOG" in the "Machine operating area" and press
the "Workpiece zero" and "Probe calibration" softkeys.
The "Calibrate Probe" window opens.
11. Press the "Length" softkey.
12. Specify reference point Z0 of the surface, e.g. of the workpiece or the
machine table.
13. Press the <CYCLE START> key.
The calibration starts.
When the length is calibrated, the length of the workpiece probe is
calculated and entered in the tool list.
Setting up the machine
2.6 Measuring the workpiece zero
85