00197787-02_SI_SIPLACE_HeadVerification_EN - 第61页

6 Description of the test results 6.14 Head endurance run 01005 Software Manual SIPLACE Head Verification 03/2018 61 Fig.47: Result view – Head endurance run 01005 2/2 11 Zminpick is the smallest z-pick value determin…

6 Description of the test results

6.14 Head endurance run 01005

60 Software Manual SIPLACE Head Verification 03/2018

6.14 Head endurance run 01005

6.14.1 Measurement principle

The Head endurance run 01005 measurement checks the reliability of the Z-axis and the DPs, es-

pecially for small components, such as 0201 or 01005, which are typically processed using the

contactless placement function.

During the measurement of the Z-axis, each segment is moved up and down a number times to de-

termine the characteristics during the upward and downward movement. Before each downward

movement, the DP is turned by 180° with the time measured it takes to reach the final position.

6.14.2 Measurement result

Fig.46: Result view – Head endurance run 01005 1/2

1 Measured Segment

2 Total number of cycles performed

3 Values from the difference between Zminpick and Zmaxpick:

Zdowndeltapick = Zmaxpick – Zminpick

4 Values from the difference between Zminplace and Zmaxplace:

Zdowndeltaplace = Zmaxplace – Zminplace

5 MinDPtime shows the value for the minimum time the DP needs to turn from 0° to 180°.

6 MaxDPtime shows the value for the maximum time the DP needs to turn from 180° to 0°.

7 #OK shows the number of successful Z-axis movements (up and down).

8 #errors…0 shows the number of failed Z-axis movements (up and down).

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

10 #moves shows the number of performed Z-axis movements (in this case 30x down + 30x

up = 60).

6 Description of the test results

6.14 Head endurance run 01005

Software Manual SIPLACE Head Verification 03/2018 61

Fig.47: Result view – Head endurance run 01005 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

6.14 Head endurance run 01005

62 Software Manual SIPLACE Head Verification 03/2018

6.14.3 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.

‘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.

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

Cause Solution

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