SL940-Install-Ops-Maintenance-7210918_B.pdf - 第46页
2- 12 Safety 2.10.1 Emergenc y Shutdown Situa tions As a m inim um , ac tivate the EMO in the fol low ing situ ations : WARNING! CAUTIO N! In an em ergenc y, failure t o c ompletel y shut do wn pow er to the c oatin g sy…
Safety 2-11
2.10 Emergency Shutdown
In the event of an emergency or malfunction, press the EMO (E-Stop) button. The SL-940E/SL-941E has
two EMO buttons. The EMO buttons are the large red buttons located on the front panel and the rear of
the coating system (Figure 2-7A). Activating the EMO vents all pressure in the pneumatic system and
cuts power to all components except the laptop computer.
TIP If the operator or technician is unable to reach the EMO button, the main circuit breaker,
which is located on the back of the system (Figure 2-7B), can be used for emergency
shutdown, but doing this will also shut down the laptop computer.
Figure 2-7A EMO (E-Stop) Buttons
Figure 2-7B Main Circuit Breaker
Item Description
1 Front EMO
2 Rear EMO
3 Main Circuit Breaker
Figure 2-7 EMO/Main Circuit Breaker Locations
1
2
3
2-12 Safety
2.10.1 Emergency Shutdown Situations
As a minimum, activate the EMO in the following situations:
WARNING! CAUTION!
In an emergency, failure to completely shut down power to the coating system
with the EMO can cause serious injury to the user and/or damage to the coating
system.
• If anyone is in immediate danger of being injured by moving parts, hazardous materials, or
electrical shock.
• If valuable coating system components or the workpieces are in danger of being damaged.
This can include:
- Physical damage to the dispensing valve or workpiece by unexpected dispensing
head movement.
- Electrical damage to the coating system.
2.10.2 Emergency Shutdown Recovery
WARNING! CAUTION!
Do not restart the dispensing operation until the condition that caused the
emergency shutdown has been corrected. Failure to comply could cause serious
injury to the user and/or serious damage to the coating system.
NOTE If the Main Circuit Breaker has been tripped, you will need to restart the coating system
as specified in 4.7 Powering On the System.
To recover after an emergency shutdown:
1. Open the hood and clear the conveyor of all workpieces.
2. Locate and remedy the cause of the emergency shutdown. If necessary, refer to Section 8 -
Troubleshooting.
3. Close the front hood.
4. Turn the EMO knob clockwise until it pops back into position.
5. Press the
Start (I) button on the front panel.
6. Restart your dispensing program. See 5.17 Loading a Program and 5.18 Running a Program.
Safety 2-13
2.11 Interlock
The interlock is an electronic connection that immediately cuts the power to any motion and pneumatic
actuators. If the dispensing area hood is opened during dispensing, the interlock is activated and all
dispensing activity immediately stops to protect the operator from injury. There is a second interlock
device inside the front cabinet on the spill pan to ensure an appropriate ventilation path when the drawer
is pulled out for maintenance.
2.11.1.1 Interlock Shutdown
When an interlock shutdown occurs, the motor power turns OFF, the system loses master references, and
the red beacon light illuminates. The program WILL NOT resume from where it stopped.
To recover from a shutdown triggered by the Interlock:
1. Close the dispensing area hood.
2. Restart the dispensing program. See 5.17 Loading a Program and 5.18 Running a Program.
2.12 Service Shutdown
Before performing any service or parts replacement, the coating system should be shut down as follows:
1. Shutdown the coating system as described in 5.11.2.4 Service Shutdown.
2. Perform a “Lockout/Tagout of Electrical and Pneumatic Energy” as described below.
2.13 Lockout of Electrical and Pneumatic Energy
Companies may differ in their Lockout/Tagout (LOTO) procedures and requirements, and it is the
responsibility of the end user to determine compliance with local safety procedures. The purpose of any
LOTO effort is to help avoid injury or coating system damage due to unexpected energizing of
equipment, start up, or the release of stored energy during repair, maintenance, and operation of
equipment. Situations where LOTO practices may be employed on the SL-940E/SL-941E include:
• Adjusting cables, belts, pulleys, or moving parts
• Servicing bearings or motors
• Troubleshooting, servicing, or replacing electronic components or assemblies
• Troubleshooting, servicing, or replacing pneumatic components or assemblies.
Situations where LOTO practices might not be required are when troubleshooting electrical, pneumatic,
or hydraulic components or assemblies that make de-energizing the whole system impractical.
Troubleshooting or servicing the SL-940E/SL-941E while powered up and operating should only be
accomplished by fully trained and qualified personnel. There should always be a second person present
when performing maintenance on a system under power.
To lockout/tagout the electrical and pneumatic energy:
1. Turn the Main Power Circuit Breaker on the rear of the system to the
OFF (0) position.
2. Unplug the main power cable from the back of the Power Manager.