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PVA Portal Manual Revision I / Janua ry 2022 Page 52 of 106 4. Disconnect t he material line from th e inlet port of the flow m onitor. 5. Turn the air inlet and the material outlet valves to the open p osition. 6. Use t…

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PVA Portal Manual
Revision I / January 2022
8.4.7 FIS
In the FIS option of the SetupTree tab, the FIS Communication can be either enabled or
disabled. Refer to Section 6.8 for more information on FIS.
Figure 50: Enable or Disable FIS
8.4.8 Flow Monitors
The Flow Monitor will always be in the SetupTree with only on/off settings. The Setpoint
and Deviation MUST be set in path programs.
Some workcells have flow monitors, up to four, installed. Workcell flow monitors measure
the amount of material that flows through the supply line before it goes to supply the
individual valves. Flow monitors are used to show when the actual values are outside of the
set values. The operator sets the necessary material volume and a permitted deviation.
8.4.8.1 Priming the Flow Monitor
The flow monitor must be primed before it is used to prevent damage. When priming the
flow monitor, the amount of air that goes through the unit during the initial startup is
reduced. Perform the following procedure to prime the flow monitor:
1. Fill the pressure vessel with material and close tightly. Refer to the system manual
for more information.
2. Set the material pressure regulator to 0 psi.
3. Turn the air inlet and the material outlet valves to the closed position.
PVA Portal Manual
Revision I / January 2022
4. Disconnect the material line from the inlet port of the flow monitor.
5. Turn the air inlet and the material outlet valves to the open position.
6. Use the material pressure regulator to slowly increase the material pressure until
material flows from the disconnected material line.
7. Turn the material outlet valve to the closed position.
8. Reduce the pressure for the pressure vessel and adjust the material pressure
regulator to 0 psi. Refer to the fluid system manual for more information.
9. Reconnect the material line to the inlet port of the flow monitor.
10. Perform the manual purge procedure to open the valves. Refer to Section 6.1 for
more information.
11. Turn the material outlet valve to the open position.
12. Use the material pressure regulator to slowly increase the material pressure to the
operating pressure.
13. Repeat the manual purge procedure for each valve until the material flows without
any breaks in the flow.
8.4.8.2 Finding the Correct Material Volume
A complete path program is needed before being able to find the correct material volume.
Any change to a program also changes the flow data results.
1. Load a completed path program into memory.
2. In Portal, select Manual mode.
3. Put the board in the correct position, as related to the board stops, and run one
cycle as “WET”. For more information on Manual mode, refer to Section 6.
4. After the cycle is completed, the dispensed volume is shown in the system
messages window.
5. Select the “Stop” button to go to Cycle Stop mode.
6. Select Setup mode and then the “Flow Monitor” tab.
PVA Portal Manual
Revision I / January 2022
7. In the SetupTree tab, adjust the setpoint to match the value found.
8. Change the flow set point to the value that was shown on the mode system
messages window. This will be a DMC command in the path program; adjust the
value of the variable to achieve this.
9. Select the “Stop” button to go to Cycle Stop mode.
10. Select Manual mode.
11. Operate the workcell for additional cycles to ensure that the path program
dispenses the same amount of material for each cycle.
8.4.8.3 Set the Material Volume Check
The settings for the material volume check must be programmed into the path program. If
no settings are programmed in the path, the machine will use the flow monitor settings of
the most recently run program. To set the material volume check parameters, program the
following settings into the path program using the two variables FCx_SET and FCx_DEV:
Note: If either of these variables are set to “0”, they will cause errors.
• “x” is the letter of the related flow monitor (A, B, C, or D).
• FCx_SET is the set point for the material flow in cc.
• FCx_DEV is the percent deviation permitted, which can range from 0 to 99.
For example, entering the following line into a path program would put the volume setting
for monitor ‘A’ at 0.5 cc and the allowable deviation at 5%:
• FCA_SET=0.500; FCA_DEV=5
8.4.8.4 Auto Cycle Flow Error
Auto Cycle checks the material flow after every cycle if the error is turned “ON” in Flow
Control mode. If the volume is within the set parameters, no indication is shown. When the
volume is outside the set parameters, the flow error screen is shown when the cycle
completes, not immediately on error. Before operating the workcell again, remove the part.
Note: Any changes made to settings in the material delivery system (material
pressure, stroke adjustment, etc.) will affect the data from the flow monitor. When
this happens, it will be necessary to find the correct material volume again.