Related Manuals for Nordson EFD 745NC
Summary of Contents for Nordson EFD 745NC
- Page 1 Square Wave 745NC Non-Contact Dispense Valve Operating Manual ™ Electronic pdf files of Nordson EFD manuals are also available at www.nordsonefd.com...
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Page 2: Table Of Contents
Tara Tara Tereso, Vice President Contents Contents ..................................2 Introduction ..................................3 Specifications .................................3 Installation ..................................4 Valve Disassembly and Reassembly Procedures ......................8 Replacement Parts ................................10 Troubleshooting Guide ..............................11 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. -
Page 3: Introduction
Square Wave 745NC Non-Contact Dispense Valve Introduction ™ The Square Wave 745NC high speed non-contact valve applies low-viscosity water soluble and solvent-based liquid fluxes in accurate, repeatable amounts on cell bus bars and solder-coated ribbon used in cell string attachment. Specifications... -
Page 4: Installation
4. Connect valve control air to a constant air source between 4.8–6.3 bar (70–90 psi). The Square Wave 745NC valve is recommended to be actuated using a spike and hold driver circuit. The valve requires a 24 VDC pulse for 1 ms minimum to actuate the valve. This is then reduced to 5 VDC for the remaining period that the valve is open. - Page 5 (Step 5 starts on page 6) Block Diagram of Circuit Operation Input Signal Hold Voltage 5 VDC Spike Voltage 5 VDC Spike and Hold Driver Circuit www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
- Page 6 Square Wave 745NC Non-Contact Dispense Valve Operation of a Spike and Hold Driver Circuit 5. Connect the 745NC Square Wave valve with a 4 watt solenoid to a ™ ValveMate 8000 controller. *IMPORTANT NOTE: Only a 745NC valve installed with a 4 watt solenoid can be used with the ValveMate 8000 controller.
- Page 7 Air to tank NOTE: Use the blue and brown wires of the bullet solenoid cable for BackPack Bullet solenoid valve actuation. The wires are cable not polarized. www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
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Page 8: Valve Disassembly And Reassembly Procedures
6. Replace with new needle assembly. Insert into actuation body, ensuring that piston seal is not damaged. 7. Reassemble the upper stroke control plate and secure with (4) screws. www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. - Page 9 6. Install the replacement bullet solenoid by rotating the solenoid clockwise until it is fully tightened. 7. Reconnect the bullet solenoid cable and the air line. 8. Turn air pressure ON. www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
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Page 10: Replacement Parts
Buna N 7028738 Chamber seat plate 7028728 Bolts, M2 8X 7028736 Nozzle, 0.004" 7028731 Nozzle, 0.005" 7028732 Nozzle, 0.006" 7028733 Nozzle, 0.007" 7028734 Nozzle retaining nut 7028730 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. -
Page 11: Troubleshooting Guide
The time the valve is open must be constant. Check to be sure the valve controller is providing consistent output. If trouble cannot be corrected or if you need further assistance, please contact us. www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. - Page 12 NORDSON EFD ONE YEAR LIMITED WARRANTY This Nordson EFD product is warranted for one year from the date of purchase to be free from defects in material and workmanship (but not against damage caused by misuse, abrasion, corrosion, negligence, accident, faulty installation, or by dispensing material incompatible with equipment) when the equipment is installed and operated in accordance with factory recommendations and instructions.