00197787-02_SI_SIPLACE_HeadVerification_EN - 第81页

6 Description of the test results 6.22 Z-axis movement Software Manual SIPLACE Head Verification 03/2018 81 6.22 Z-axis movement 6.22.1 Measurement principle The Z-axis movement measurement determines the maximum travel …

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6 Description of the test results
6.21 Segment offset up (SOO)
80 Software Manual SIPLACE Head Verification 03/2018
6.21.3 Interpretation of the results obtained
‘Up X’ and ‘Up Y’ error for all segments
Cause Solution
Incorrect zero point correction of the star Check the zero point correction of the star.
Component sensor defective or polluted Clean or replace the component sensor.
‘Up X’, ‘Up Y’, ‘Down X’ and ‘Down Y’ error for individual segments
Cause Solution
Segment bent, possibly after crash Replace the segment (DP).
Linear bearing of segment defective Replace the linear bearing (DP).
6 Description of the test results
6.22 Z-axis movement
Software Manual SIPLACE Head Verification 03/2018 81
6.22 Z-axis movement
6.22.1 Measurement principle
The Z-axis movement measurement determines the maximum travel range for each segment and
indicates the condition of the segment and Z-axis linear guide.
The Z-axis is moved three times into a free space until the hardware stop is reached or the Z-
axis current sensor is triggered. If the Z-axis moves easily to the hardware end stop, the linear
guides of both the segment and the Z-axis are in a good condition.
If the current sensor is triggered and the Z-axis is not moving smoothly, this is an indicator for
a mechanical problem with the segment and/or the Z-axis.
6.22.2 Measurement result
Fig.56: Result view – Z-axis movement measurement
1 Measured Segment
2 Calculated average travel range.
End position Z = mean value of Measure 1-3
3 Result view indicating if the values are within (green tick) or outside (red cross) the limits.
4 Measure 1-3 values measured from the three Z-axis movements per segment
5 Graph showing the calculated End position Z value for each segment.
6 Graph showing the Measure 1-3 values for each segment.
6 Description of the test results
6.22 Z-axis movement
82 Software Manual SIPLACE Head Verification 03/2018
6.22.3 Interpretation of the results obtained
‘End position Z’ error for all segments
Cause Solution
Z-axis linear guide defective Replace the complete Z-axis unit.
‘End position Z’ error for individual segments
Cause Solution
If all three measured values are outside of the
limits, the linear guide of the segment is defect-
ive.
CPP: Replace the linear guide of the seg-
ment.
C&P20P/A: Replace the DP station.
One of the three measured values being outside
of the limits indicates an increasing stiffness of
the segment.
CPP: Prepare the linear guide for the seg-
ment to be replaced.
C&P20P/A: Prepare the DP station to be
replaced.