00197787-02_SI_SIPLACE_HeadVerification_EN - 第67页

6 Description of the test results 6.16 Head endurance run LS Software Manual SIPLACE Head Verification 03/2018 67 6.16.3 Interpretation of the results obtained ‘Z down delta pick’ and ‘Z down delta place’ errors for all …

6 Description of the test results

6.16 Head endurance run LS

66 Software Manual SIPLACE Head Verification 03/2018

Fig.50: Result view – Head endurance run LS 2/2

11 Zminpick is the smallest z-pick value determined.

12 Zmaxpick is the largest z-pick value determined.

13 Zminplace is the smallest z-place value determined.

14 Zmaxplace is the largest z-place value determined.

15 Graph showing the Zdowndeltapick values for each segment.

16 Graph showing the Zdowndeltapickmin(blue) and Zdowndeltapickmax(green) val-

ues for each segment.

17 Graph showing the DPtimemin(blue) and DPtimemax (green) values for each seg-

ment.

18 Graph showing the Zdowndeltaplace values for each segment.

19 Graph showing the Zdowndeltaplacemin (blue) and Zdowndeltaplacemax (green)

values for each segment.

6 Description of the test results

6.16 Head endurance run LS

Software Manual SIPLACE Head Verification 03/2018 67

6.16.3 Interpretation of the results obtained

‘Z down delta pick’ and ‘Z down delta place’ errors for all segments

Cause Solution

Z-motor defective ► Replace the Z-motor.

Z-motor linear guide not moving smoothly ► Replace the Z-motor.

Read unit of Z-motor polluted ► Clean the read unit of the Z-motor.

Light barrier Z down dirty / defective ► Clean or replace the light barrier.

‘Z down delta pick’ and ‘Z down delta place’ errors for individual segments

Cause Solution

DP linear guide not moving smoothly ► Replace the DP unit.

Linear guide of segment not moving smoothly ► Replace the linear guide of the segment.

Anti-glare shield defective or incorrectly fitted ► Replace the anti-glare shield.

Light barrier of segment dirty or defective ► Clean the light barrier through the service

windows.

‘Min DP time’ or ‘Max DP time’ errors for individual segments

Cause Solution

Internal DP/segment problem ► Replace the segment (DP).

6 Description of the test results

6.17 Holding circuit (sealed nozzles)

68 Software Manual SIPLACE Head Verification 03/2018

6.17 Holding circuit (sealed nozzles)

6.17.1 Measurement principle

After referencing the star, vacuum is applied to the segments in the holding circuit and the vacuum

value of each segment is measured. Using sealed nozzles simulates the condition of a picked-up

component.

6.17.2 Measurement result

Fig.51: Result view – Holding circuit (sealed nozzles) measurement

1 Measured Segment

2 Values of the Holding(sealed nozzles) measurement with sealed nozzles

3 Values of the Holdingoff(sealed nozzles) measurement show how fast the vacuum is

reduced after it is switched off.

In an ideal case, the measured value is 0mbar (atmospheric pressure).

4 Result view indicating if the values are within (green tick) or outside (red cross) the limits.

5 Graph showing the Holding (sealed nozzles) values for each segment with vacuum en-

abled.

6 Graph showing the Holding off (sealed nozzles) values for each segment after the va-

cuum has been disabled.