00197787-02_SI_SIPLACE_HeadVerification_EN.pdf - 第68页
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, …
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 Holdingoff(sealed nozzles) measurement show how fast the vacuum is
reduced after it is switched off.
In an ideal case, the measured value is 0mbar (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.
6 Description of the test results
6.17 Holding circuit (sealed nozzles)
Software Manual SIPLACE Head Verification 03/2018 69
6.17.3 Interpretation of the results obtained
‘Holding circuit (sealed nozzles)’ error for all segments
Cause Solution
Vacuum supply defective ► Check the air hoses.
► Check and maintain the vacuum pump if
applicable.
Vacuum block of CPP defective ► Replace the CPP vacuum block with a new
one.
Leaky O-ring between vacuum unit and silencer ► Check the O-ring assembly or replace it.
Seal for holding circuit / aperture ring incorrectly
fitted or damaged
► Check the seal position and replace it if
necessary.
‘Holding circuit (sealed nozzles)’ error for individual segments
Cause Solution
Filter disk damaged or incorrectly fitted ► Replace the filter disk with a new one.
Vacuum hose for segment damaged or dirty ► Clean the vacuum hose and replace it if
necessary.
Holding circuit unit polluted ► Clean the holding circuit unit in an ultra-
sonic bath.
Leaky vacuum nozzle ► Replace the vacuum nozzle with a new
one.
‘Holding circuit (sealed nozzles)’ error for more than one segment
Cause Solution
Holding circuit unit polluted ► Clean the holding circuit unit in an ultra-
sonic bath.
Seal for holding circuit / aperture ring incorrectly
fitted or damaged
► Check the seal position and replace it if
necessary.