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.
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.
Adapting the user interface to the measurement functions
The following selection options can be switched-in or switched-out:
Activate the following selection options using setting data:
● Calibration plane, measurement plane
● Work offset as basis of the measuring process
● Number of the probe calibration data set
● Offset target, adjustable work offset
● Offset target, basis reference
● Offset target, global basis work offset
● Offset target, channel-specific basis work offset
Precondition
The requirement for measuring the workpiece is that a tool with known lengths is in the
machining position.
Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Setting up the machine
2.6 Measuring the workpiece zero
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