SL940-Install-Ops-Maintenance-7210918_B.pdf - 第96页
5- 16 Operation 5.11.2.3 Extended shutdown If the sy stem will be shu t down for sev eral days, o r if your coat ing m aterial h as a shor t pot lif e, foll ow the procedures outlined in the appropriate coating applicato…
Operation 5-15
5.11.2 Shutdown
5.11.2.1 Emergency Shutdown
In case of an emergency or malfunction, press one of the EMO buttons. The EMO buttons are the large
red buttons located on the front panel and rear of the coating system. For more information, see 2.10
Emergency Shutdown.
WARNING! Power is still available to the power supply and to the Power Manager after an
Emergency Shutdown. To fully remove power to the system, all power cords
must be disconnected.
5.11.2.2 Routine Shutdown
Routine shutdown may vary depending on your particular requirements. The system may be left in the
power-on state at the end of the day or turned off completely. However, it is recommended that you
incorporate the following procedure into your production shutdown routine:
To shut down at the end of a production shift (overnight):
If you are using a coating material without pot life limitations, follow these steps for shutdown:
1. Wait for the dispensing program to complete.
2. Verify that all motion has stopped.
3. Unload all boards from the conveyor.
4. Exit ECXP.
5. Turn the Reservoir Air Pressure Switch (Figure 1-8) to the OFF
(0) position.
6. Press the
Stop (0) button on the front panel.
7. Remove the nozzle from the coating applicator.
8. To prevent material from curing inside the coating applicator nozzle, immerse the applicator
in the appropriate solvent in the stainless steel solvent cup.
If necessary, use an Asymtek nozzle brush (P/N 901905) to remove build-up.
9. Dry the nozzle and inspect the orifice for blockage.
10. Immerse the nozzle in solvent and store it in a safe place.
5-16 Operation
5.11.2.3 Extended shutdown
If the system will be shut down for several days, or if your coating material has a short pot life, follow the
procedures outlined in the appropriate coating applicator manual for cleaning and maintenance of the
coating applicator and nozzle.
5.11.2.4 Service Shutdown
To shut down for service:
1. Wait for the dispensing program to complete.
2. Verify that all motion has stopped.
3. Unload all boards from the conveyor.
4. Exit ECXP.
5. Exit Windows XP.
6. Flush the fluid system with the appropriate solvent as described in 5.15 Changing
Material/Flushing Fluid System.
7. When the fluid system has been flushed, turn the Reservoir Air Pressure Switch (Figure 1-8)
to the OFF
(0) position.
8. Press the
Stop button on the front panel.
9. Remove the nozzle from the coating applicator.
10. To prevent material from curing inside the coating applicator nozzle, immerse the applicator
in the appropriate solvent in the stainless steel solvent cup.
If necessary, use an Asymtek nozzle brush (P/N 901905) to remove build-up.
11. Dry the nozzle and inspect the orifice for blockage.
12. Immerse the nozzle in solvent and store it in a safe place.
13. Perform a Lockout/Tagout procedure as described in 2.13 Lockout of Electrical and
Pneumatic Energy.
Operation 5-17
5.12 Daily Routine Procedures
Table 5-2 contains a brief description and instructions for routine procedures that should be performed on
a daily basis before and after operating the coating system.
Table 5-2 Daily Routine Procedures
Procedure Description
STARTUP
Check Main Air Pressure
Ensure that the main air pressure is properly adjusted. If necessary,
adjust the main air pressure as described in 5.10.1 Main Air Regulator
and Gauge. Record the proper setting on the Daily Routine Checklist for
daily reference.
Check Reservoir Pressure
Ensure that the reservoir pressure is properly adjusted. If necessary,
adjust the fluid pressure as described in 5.10.2 Reservoir Pressure
Regulator and Gauge. Record the proper setting on the Daily Routine
Checklist for daily reference.
NOTE Refer to the manual for your specific coating applicator
for appropriate fluid pressure settings.
Verify Exhaust Connection
Verify that the Exhaust Vent is properly connected to the facility exhaust
system ductwork. Refer to 4.5 Exhaust Connection.
Check Ventilation Airflow Verify ventilation holes are clear from obstructions.
Fill Fluid Reservoir
Fill the Fluid Reservoir as described in 5.14 Filling the Fluid Reservoir.
Inspect Hardware
Inspect coating system for broken, loose, worn, or missing hardware.
Replace or repair as necessary.
Fill Solvent Cup
Make sure that the solvent cup is filled with a clean supply of the
appropriate solvent and is properly placed for the selected coating
program.
Inspect Electrical and
Pneumatic Lines
Inspect coating system for broken, loose, or frayed electrical and
pneumatic lines. Replace as necessary.
Inspect Conveyor
Inspect conveyor rollers, bearings, and chain for surface damage.
Ensure that no foreign material adheres to surfaces. Clean and replace
as necessary.
Verify Material Temperature Verify the material temperature, if applicable.
Perform Characterization
Perform a characterization if necessary. Refer to 6.14 Characterization.
SHUTDOWN
Remove Workpieces
Remove all workpieces and foreign objects from the dispensing and
conveyor areas.
Flush Fluid System
Flush the fluid system. See 5.15 Changing Material/Flushing Fluid
System.
Clean Coating System
Clean all surfaces of the coating system (doors, side panels, Front
Panel, part sensor, etc.).
Clean Nozzle Refer to the manual for your specific coating applicator for instructions.