User manual EFD 780S

[. . . ] 780S Series Spray Valves VALVEMATETM 7040 Controller Operating Manual ® A NORDSON COMPANY US: 888-333-0311 UK: 0800 585733 Mexico: 001-800-556-3484 If you require any assistance or have specific questions, please contact us. US: 888-333-0311 Telephone: 401-434-1680 Fax: 401-431-0237 E-mail: technical@efd-inc. com Mexico: 001-800-556-3484 UK: 0800 585733 EFD Inc. 977 Waterman Avenue, East Providence, RI 02914-1342 USA Sales and service of EFD Dispense Valve Systems is available through EFD authorized distributors in over 30 countries. for specific names and addresses. Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 How The Valve and Controller Operate . . . . . . . . . . . . . . . . . . . . . . 4 Controller Operating Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 Adjusting the Spray. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Programming Nozzle Air Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Spray Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13 Valve Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16 780S Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Input / Output Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19 Connecting More than One 7040 Controller. . . . . . . . . . . . . . 20 7040 Schematic and Replacement Parts . . . . . . . . . . . . . . . . . . 21 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Meets CSA and CE standards. [. . . ] If it is closed, open counterclockwise one turn. The control and the nozzle air lines may be reversed. Check for proper connection (see Setup Schematic on page 6). No fluid flow. Valve does not provide clean shutoff, Nozzle air pressure may be too low. A continuous drip can be caused by improper seating of the needle in the nozzle seat. Remove the nozzle, clean the needle and nozzle, replace worn or damaged parts. If the liquid chamber has not been fully turned onto the air cylinder body during reassembly, the needle will not seat in the nozzle. Check to be sure the liquid chamber is properly installed (see Maintenance Instructions on pages 14-16). Needle packings may be binding due to leakage, preventing the needle from fully closing. Disassemble the valve in accordance with the Maintenance Instructions. Replace the packings if there is evidence of leakage. The air passageway between the nozzle and air cap may be obstructed. Remove the air cap, and clean the air cap and nozzle. If the fluid viscosity is too high, it will not atomize. Reduce viscosity. Fluid continuously drips from the nozzle after the valve shuts off. Fluid flows from the nozzle but will not spray. 12 / Troubleshooting Guide NEXT VALVEMATETM 7040 Trouble No power. Possible cause and correction Be sure that there is power at the wall receptacle. If the fuse has blown, check the voltage value in the fuse cartridge window. Be sure that it matches the input voltage. Ensure that the external voltage to the circuit is between 5 and 24 VDC and that the load does not exceed 250 mA. If the circuit has been overloaded, the fuse may have blown. See internal diagram on page 21 and replace if necessary. Response delay in pneumatic circuit does not allow the valve to open when time is at or below 0. 015 seconds. Valve operating pressure lower than 60 psi (4. 1 bar) can cause inconsistent output. Check to be sure pressure is set at 70 psi (4. 8 bar). [. . . ] The initiate power supply should be sized accordingly. Example: First 7040 consumes 15. 0 mA at 24 volts. Second one will consume another 15. 0 mA; total now is 30. 0 mA. Third one will consume another 15. 0, making the total 45. 0 mA and so on. 54321 9876 54321 9876 54321 9876 5-24 VDC Source + 1. [. . . ]