Measuring The Workpiece Zero - Siemens SINUMERIK 840D sl Operating Manual

2.6

Measuring the workpiece zero

The reference point for programming a workpiece is always the workpiece zero. To
determine this zero point, measure the length of the workpiece and save the position of the
cylinder's face surface in the direction Z in a work offset. This means that the position is
stored in the coarse offset and existing values in the fine offset are deleted.
Calculation
When the workpiece zero / work offset is calculated, the tool length is automatically taken
into account.
Example:
Workpiece edge position setpoint Z0 = 0
Tool length offset Z = 37.6 mm
Z = -37.6
Measuring only
If you wish to measure the workpiece zero in "Measuring Only" mode, the measured values
are merely displayed without any changes being made to the coordinate system.
Requirement
The requirement for measuring the workpiece is that a tool with known lengths is in the
machining position.
Procedure
HMI sl Turning
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
1. Select the "Machine" operating area and press the "JOG" key.
2. Press the "Workpiece zero" softkey.
The "Set Edge" window opens.
3. Select "Measuring only" if you only want to display the measured
values.
- OR -
Setting up the machine
2.6 Measuring the workpiece zero
59