Portal_Manual_1.2.1_Rev_H-1.pdf - 第79页
Portal PVA Revisio n H ( 2018 ) 79 of 93 8. Close the access door. 9. Do the Startup Pro cedure. If a door is open while the DO OR BYPASS switc h is in the OFF pos ition , or any machine state besides man u al mode or ca…
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PVA
Revision H (2018)
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16 Fault Recovery
16.1 Recovering From Emergency Stop and Other
Machine Errors
If the Emergency Stop button is engaged or the machine encounters a system error, do
this procedure to return the machine to normal operation.
WARNING! If the Emergency Stop was engaged because of system failure, DO
NOT disengage the Emergency Stop button. Shutdown the system and have
qualified personnel repair the machine.
Do not operate the workcell again until the cause of the failure has been repaired.
1. Open the front doors and remove all parts/PCBs from the work area.
2. Close the doors and disengage the “Emergency Stop” button if it was not
engaged because of a system failure.
3. Push “Continue”.
4. Press “Continue” to return the head to the standby position. The screen returns
to Cycle Stop.
NOTE: All functions are disengaged until the “Emergency Stop” button is
disengaged.
Figure 93: Emergency Stop
5. Correct the fault which caused the operator to engage the “Emergency Stop”
button.
6. Open the access door.
7. Remove all parts from the work area. Find the parts that can still be used and
put them in the input queue.
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8. Close the access door.
9. Do the Startup Procedure.
If a door is open while the DOOR BYPASS switch is in the OFF position, or any machine
state besides manual mode or calibration, it will cause a door error. Recovery from a
door error is like the recovery from an Emergency Stop.
Other workcell errors can occur, such as: low air pressure, low material flow or
insufficient exhaust air flow. You must correct these errors first, and then do the startup
procedure to continue. Refer to the section that relates to your error.
Examples of the other possible error screens:
Figure 94: Door Open Error
Figure 95: Low Material Level and Low Exhaust Flow
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16.2 Low Material Level
There are three common ways to monitor the material level:
• Scales are the most common and the most flexible option to monitor the
material level. They have two settings one for an empty level and one for a low
material level. When the low material level is reached, the operator will be
shown a message, but the workcell will continue to operate. When the empty
level is reached the workcell will stop.
• Floats are also a way to monitor the material level. This option only tells you
when the material is low.
• Proximity sensors are used for cartridges or syringes. The sensor is activated
when the ram moves to the low material position.
The workcell only measures the material level(s) when in auto cycle or manual mode
“One Shot Wet”. If there is a material level error, the machine can operate in all modes,
except for auto cycle or manual mode “One Shot Wet”, until the material level is raised
above the Low level.
NOTE: A low material level will not stop a cycle. The cycle will complete the
path program and then stop machine operation.
1. To view material levels, select the Scales tab on the right side of the portal
screen. This can be viewed in any mode. The amount of material in the tank is
shown.
Figure 96: Material Level