SIPLACE D4-D4i 工程师手册_EN - 第218页

Settings C&P12 6.3.12 Performing a Vacuum Test on the C&P 6/12 DLM Heads 218 Service Manual SIPLACE D4/D4i Repeat these adjustme nts several times, as the pick - up / plac ement circuit are mutually dependent. 6.…

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Settings
6.3.11 Adjustment of air pressure values C&P12
Service Manual SIPLACE D4/D4i 217
6.3.11
6.3.11 Adjustment of air pressure values
Adjustment of air pressure values
6.3.11.1
6.3.11.1 Tools and Equipment
Tools and Equipment
▪ A set of slotted screw drivers
▪ Compressed air testing device
6.3.11.2
6.3.11.2 Setting the Air Blast Pressure Values
Setting the Air Blast Pressure Values
6.3.11.3
6.3.11.3 Setting the Air Blast Pressure Values with the Compressed Air Testing Device
Setting the Air Blast Pressure Values with the Compressed Air Testing Device
Adjust to the values of the table below:
Adjustment of air pressure values
Legend
1. Forced air unit
2. Micro-relay valve
3. Adjustment valve for the reject circuit
4. Adjustment valve for the pick - up / placement circuit
NOTICE! Use a nozzle of type 914 to set the air
blast. Please press in the spring from the nozzle interface
during the measurement and read the value from the dis-
play.
Flow chart determining air pressure values
When setting the air blast value with the compressed air
device and the adjustment valve, observe the following:
► Press the nozzle upwards during the measurement
process!!
NOTICE! The air blast values which are shown
in the Measured Air Blast menu, on the station computer
screen, at Single Functions or in the SITEST program, do
not reflect the air blast values really set at the nozzle.
They solely serve to check that the air blast valve is func-
tioning correctly. Therefore, do not use the values shown
on the screen to set the air blast. Instead, use only the
values determined with the compressed air testing de-
vice.
Settings
C&P12 6.3.12 Performing a Vacuum Test on the C&P 6/12 DLM Heads
218 Service Manual SIPLACE D4/D4i
Repeat these adjustments several times, as the pick - up / placement circuit are mutually dependent.
6.3.12
6.3.12 Performing a Vacuum Test on the C&P 6/12 DLM Heads
Performing a Vacuum Test on the C&P 6/12 DLM Heads
Damage to the valve plunger, silicone hose, the vacuum plate, in or on the nozzle can lead to leakage
which may then cause malfunctions during the placement process or which may reduce the vacuum val-
ue in the holding circuit.
Air Pressure Values Set with compressed air testing de-
vice
Measured at nozzle:
Displayed on the monitor:
(Only in pickup and placement
circuit)
pick - up / placement circuit 150 mbar (100 - 200 mbar) e.g.: 250 mbar
Reject circuit 250 mbar (200 - 300 mbar) Reject circuit does not have a
sensor
NOTICE
The two air blast circuits are controlled via a single valve and therefore influence one another
mutually. However, two different adjustment valves (see items 3 and 4 in the diagram above)
can be used to set the various pressures for each circuit.
NOTICE
Make sure the measurement sensor hose is fitted tightly on the nozzle.
Vacuum test with normal nozzle configuration
▪ The vacuum tests for C&P6/12 in the station software
of the C&P12/6 placement heads only checks the
area from the vacuum generator to the valve plung-
ers.
▪ The area visible here (red frame), from the valve
plunger housing via the silicone hose into the seg-
ment housing and through the sleeve to the nozzle is
not covered by the normal vacuum test.
Equipment required
Closed nozzle tips are required for checking the complete
vacuum circuit.
The special nozzle use for this is marked red and does
not have a nozzle configuration on it:
▪ SOKO nozzle for vacuum test DLM, Item No.
[03067029-01]
Settings
6.3.12 Performing a Vacuum Test on the C&P 6/12 DLM Heads C&P12
Service Manual SIPLACE D4/D4i 219
Vacuum test with closed nozzle
► Start SITEST and perform the first reference run, if
required.
► Select the gantry for the required vacuum test on the
C&P6/12 placement head.
► Place all the nozzles for the placement head in the
nozzle changer.
► Replace the full magazine at one magazine position
with the magazine holding the test nozzles
[03067029-01].
► Go to the Nozzle on head for segment 1 menu and
select the nozzle type which was originally configured
for this magazine position.
► Select the checkbox All segments as segment 1
► Pick up the vacuum test nozzles with all segments.
► Select the vacuum test menu and perform a vacuum
test.
► The error message Vacuum difference open/closed
too low can be ignored here.
▪ As you can see in the measurement values here, the
Open values deviate by up to 3mbar from the Closed
values.
▪ However, this is within the tolerance of 5 mbar, in
which correct function can be reliably assumed.
► If this tolerance value is exceeded, check the valve
plunger and vacuum plate and replace these a a pre-
caution, if necessary.
Scenario 1
Example of faulty vacuum values, which indicate a dam-
aged vacuum plate at segment 2 here.
NOTICE! Irreparably damaged vacuum plate
If both measurements for a particular segment are
around 640mbar, this indicates that the vacuum plate is
irreparably damaged.