Valco Cincinnati VC350A, Руководство пользователя

Страница: 292 / 327

10-11 Valco Cincinnati, Inc.
MC060 Manual/VC350AG AutoGlue Control System Section 10 - Troubleshooting
9. Ensure that the “PEAK” and the “HOLD” LEDs on the valve
driver board are flashing.
9a. If they are not flashing, check the ribbon cable to the
valve driver.
9b. Check the valve driver fuse F2 and replace.
9c. If they still are not flashing, replace the valve driver
board.
10. If any of steps 7, 8, or 9 fail, turn off the gun selector switch, set
the ‘ENC” and the “SCAN” switches back to the up (“TST”)
position, and see if LEDs are operating properly in the test
mode.
11. If the LEDs do not operate properly in either the test or the
external-mode positions, recheck the settings on DS1 and DS2
to ensure that ON/OFF comp is at the minimum setting:
11a. Using a DVM, measure between TP2 (Reset) and
TP4 (gnd). This measurement should be +5V. If
measurement is not +5V, replace the main board.
12. If the LEDs operate properly in the test mode but not in the
external mode, ensure that the minimum speed is set properly.
Also verify that all internal cables are properly seated in the
connectors, and not kinked or pinched between components.
When the product scanner detects a product, two LEDs on the front panel of
the control will illuminate in sequence (Figure 10-6). To verify operation of
the front panel, follow these steps:
1. Ensure that the following LEDs are illuminating at the proper
times:
• Scanner Scanner
Scanner Scanner Scanner—This LED should illuminate when the scanner
detects the product. It should remain on until the box is
under the valve.
• Glue Glue Glue Glue Glue—This LED should illuminate when the control sends a
signal to the valve driver. It should remain on until the box
reaches the end of the glue pattern. (Does not indicate that
glue is being dispensed.)
Glue will not be dispensed from a valve
until the corresponding gun selector
switch is on.
Front-Panel
Diagnostics
Internal Diagnostics - Continued