Micron Technical Reference V9 Volume 4.pdf - 第44页

STINGER REPLACEMENT PROCEDURES 38.20 Technical Reference Manual Chapter Issue 2, Aug 14 Level Sensor Replacement 1. Isolate the printer from the pneumatic supply and lockout the mains electri- cal isolator . 2. Open the …

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STINGER
REPLACEMENT PROCEDURES
Chapter Issue 2, Aug 14 Technical Reference Manual 38.19
10. Remove the three M3 x 8 socket head screws of the actuator plate.
11. Unscrew the actuator plate up the thread of the motor shaft.
12. Unplug the connector and remove the connector from the motor.
13. Lift the dispense body, up to the end stop, to give access to the motor
mounting screws.
14. In-turn; slacken off the four M2.5 x5 cap head screws that hold the motor to
the mount plate.
15. Remove the motor and return spring assembly.
16. Replace, with new, the motor and the return spring.
17. Plug the motor drive connector back into the motor.
18. Refit to the dispense body.
19. Screw the actuator plate down the motor shaft thread and secure it to the
dispense body.
20. Refit the level sensor.
21. Refit the actuator plate.
22. Refit the syringe assembly.
23. Load the screen.
24. Close the printhead front cover.
25. Reconnect the printer to the pneumatic supply and unlock the mains elec-
trical isolator.
26. Switch the mains isolator ON.
27. When requested, press the System button.
28. Run a test product to check functionality.
STINGER
REPLACEMENT PROCEDURES
38.20 Technical Reference Manual Chapter Issue 2, Aug 14
Level Sensor
Replacement
1. Isolate the printer from the pneumatic supply and lockout the mains electri-
cal isolator.
2. Open the printhead front cover.
3. If fitted, remove the screen.
4. Pull the camera carriage to the front of the printer.
5. Remove the two M2.5 x8 countersunk head screws, which secure the cover.
6. Remove the cover.
7. Remove the syringe assembly so that it is out of the way.
8. Remove the two M3 x 16 cap head screws that fasten the sensor to the
mounting plate.
9. Remove the sensor.
10. Unscrew the connector from the sensor body.
11. Reconnect the replacement sensor and refit it to the mounting plate.
12. Refit the syringe assembly.
13. Load the screen.
14. Close the printhead front cover.
15. Reconnect the printer to the pneumatic supply and unlock the mains elec-
trical isolator.
16. Switch the mains isolator ON.
17. When requested, press the System button.
18. Run a test product to check functionality.
Mounting Plate
Level Sensor
STINGER
CALIBRATIONS
Chapter Issue 2, Aug 14 Technical Reference Manual 38.21
CALIBRATIONS
Creating a
Calibration Test
Product
A calibration test product is a useful tool to have and can be created using a
blank board. The checklist for the test product should include positional accu-
racy tests and deposit consistency checks.
Running a test product pre-production exercises the system and eliminates any
minor discrepancies that may occur due to the physical properties involved in
the process.
An example of a test product is shown below, it should be representative of a
production board.
Select Maintenance \ Test Cycles to turn Data Logging ON. Turning data
logging on allows the user to monitor the height of readings taken at the top
surface of the product. The centre and four outside test points give global board
topography, however, a localised view requires device level measurement.
Calibrated Offsets NOTE
Program the offset tests below to perform multiple deposits on one site only, at
the centre of the calibration board. This prevents the system from depositing
and / or measuring at every programmed site, and allows the opportunity to
make accurate measurements from a single location.
1. Select Open Cover and load a screen.
2. Select Close Cover.
3. Press the System button to restore system power.
4. Select Load Screen.
5. Select Maintenance.
6. Select Machine Setup.
NOTE
Measurements are made reference to X=0, Y = 0
10 Steps
50 Steps
100 Steps
Product Centre 110, 80
(Purge Process Point)
Dispense
Dispense
Dispense
Top Left 10, 150
Bottom Left 10, 10
Bottom Right 210, 10
Sacrificial Purge Points
Top Right 210, 150
Measure
Measure
Measure
Measure & Dispense