00197467-01_SM_DLM3-4_Kunde_en.pdf - 第75页
Settings Vacuum Test Service Manual SIPLACE Placement Heads DLM3/DLM4 75 5.9 5 . 9 V a c u u m T e s t Vacuum Test Damage to the valve p lunger, silicone hose , the vacuum plate, i n or on the nozzle can lead to leakage …
Settings
Adjustment of air pressure values
74 Service Manual SIPLACE Placement Heads DLM3/DLM4
Setting the blast air pressure values with the compressed air testing device
Adjust to the values of the table below:
Repeat these adjustments several times, as the pickup/placement and reject circuits are mutually de
-
pendent.
Flow chart determining air pressure values
When setting the blast air value with the compressed air
device and the air regulator, observe the following:
► Press the nozzle upwards during the measurement
process!!
NOTICE!
The blast air values shown in the "Measure blast air pres
-
sure" menu item at the screen of the station computer in
"Manual Operations" or in the SITEST program, do not
reflect the blast air values really set at the nozzle. They
are only for checking that the blast air valve is functioning
correctly. Therefore, do not use the values shown on the
screen to set the blast air. Instead, use only the values
determined with the compressed air testing device.
Air pressure values Set with compressed air testing de
-
vice
Measured at nozzle
Shown on monitor
(Only in pickup and placement
circuit)
Pickup/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
Adjustment of reject circuit not required
Reject circuit settings are not necessary for HF/X machines.
The air regulator of the reject circuit is closed for DLM4 heads.
NOTICE
Blast air circuits
The two blast air circuits are controlled via a single valve and therefore influence one another
mutually. However, the two air regulators can be used to set different pressures for each circuit.
NOTICE
Measuring sensor hose
Make sure the measurement sensor hose is fitted tightly on the nozzle.
Settings
Vacuum Test
Service Manual SIPLACE Placement Heads DLM3/DLM4 75
5.9
5.9 Vacuum Test
Vacuum Test
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.
Parts, equipment and tools
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 [03067029
-
xx]
Vacuum test with normal nozzle configuration
▪ The vacuum tests in the station software only check
the area from the vacuum generator to the valve
plungers.
▪ 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.
Settings
Vacuum Test
76 Service Manual SIPLACE Placement Heads DLM3/DLM4
Vacuum test with closed nozzle (example of SW60x
shown)
► Start SITEST and perform the first reference run, if
required.
► Select the gantry for the required vacuum test on the
C&P6/12.
► 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-xx].
► Go to the Nozzle on head for segment 1 menu and
select the nozzle type which was originally configured
for this magazine position.
► Activate 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 too low
must be ignored here.
▪ The measurement values show that open values de
-
viates by up to 3 mbar 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. Replace these a a precau
-
tion, 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.