PSV5000_OwnersManual - 第109页
Pick and Place Prob e Ad just ing the V acuum Gene rato r Sen sor PSV5000 O wner ’s M anual - 105 - work space. When wor king within th e machin e workspac e, moving the PNP head mu st be the re sponsib ility of on l…
Maintenance ■ Pick and Place Probe
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Note: Do not touch the probe tip with bare hands. Finger oils can cause
small devices to stick.
Adjusting Probe Blow-Off Pressure
Note: The flow controls are set at the factory and should not require
adjustment. If adjustments need to be made, they should be done in small
steps until the desired results are reached.
Blow-off is a small puff of air applied at the probe during the device drop
event to assist in removing a device from the probe. Blow-off is produced
by a vacuum generator on the PNP head. If set too high, blow-off could
cause device misalignment during placement.
TOOLS REQUIRED
• Large flat screwdriver
• Very small flat screwdriver
To adjust blow-off pressure on any vacuum generator:
1. Click System > Misc. I/O.
2. At the I/O Interface window, select the desired vacuum generator,
probe 1 or probe 2 (or both).
3. Click Vacuum to the OFF position. Refer to Figure 4-4.
4. Click Blow-off to the ON position.
Figure 60: Vacuum and Blow-off on the I/O Interface window.
WARNING: Possible collision hazard! The high speed and force of
the gantry can seriously harm anyone working inside the
Pick and Place Probe Adjusting the Vacuum Generator Sensor
PSV5000 Owner’s Manual - 105 -
workspace.
When working within the machine workspace, moving the PNP head must
be the responsibility of only one qualified individual. All others must stay
clear of the machine controls to prevent injury to that person.
Ensure that a job is Paused or Finished, or the system power is OFF prior to
opening any safety doors.
5. Locate the actual vacuum generator (Data I/O PN 815-0047-001) on
the right side of the PNP head. Find the blow-off adjustment
set-screw. It is inside a long knurled stem which needs to be
loosened before adjusting the set-screw. See the figure below.
Figure 61: The Blow-off adjustment set-screw on the vacuum
generator is inside a knurled locking stem (arrow). (The vacuum
block must NOT be removed as shown here.)
6. Turn the adjustment screw until the vacuum generator readout
displays +1.5 to 2.0 kPa.
7. While holding the set screw with the screwdriver, tighten the knurled
stem.
8. Do the same for the other probe.
9. Click Blow-off to the OFF position.
If you had a blow-off problem, test your results.
Adjusting the Vacuum Generator Sensor
Note: If you notice consecutive programming pick errors, before adjusting
vacuum sensors complete the Z-Axis adjustment. For instructions on Z-Axis
adjustment, see Teaching the Workspace Locations on page
69. If
Maintenance ■ Pick and Place Probe
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completing the Z-Axis adjustment does not reduce or eliminate subsequent
pick errors, complete the vacuum sensor adjustments described here.
Vacuum sensors on the PSV5000 System are adjustable. The I/O
Interface window displays a list of the sensors in the PSV5000 System
and the status of each sensor.
Note: The number of sensors on the PSV5000 System depends on the
options installed.
To view the status of sensors at the main CH700 Setup window, click
System > Misc. I/O.
Figure 62: The I/O Interface window reports sensor status and
allows switching options on or off.
TO ADJUST PROBE VACUUM GENERATOR SENSORS:
1. Finish a job.
2. At the Gantry window, move the PNP head to the Park position.
3. Close the Gantry window and at the System window click Misc. I/O.
4. At the I/O Interface tab, click the Vacuum toggle ON and the
Blow-off toggle OFF. Refer to the figure above.
5. Open the rear safety door.
6. With a device or clean finger, plug probe tip 1 and ensure the green
generator lamp comes on. See the figure below.