Nordson_EFD_P-Jet_SolderPlus_Operating_Manual.pdf - 第45页
Liquidyn P-Jet SolderPlus Jet Valve 45 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. Optional Nozzle Heater Contr ol A nozzle heater c…
Liquidyn P-Jet SolderPlus Jet Valve
44 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Appendix B, P-Jet SolderPlus Valve Interface Overview
The Liquidyn P-Jet SolderPlus pneumatic micro-dispensing jet valve system is designed for the non-contact
dispensing of EFD SolderPlus solder paste. The valve can be operated using a Nordson EFD Liquidyn valve
controller or directly by the customer via a 24V input using a customer-supplied controller or a programmable logic
controller (PLC).
Electrical Control
The valve is triggered by a square-wave signal (24 VDC). The length of the pulse from the control signal defines the
opening time of the valve and can be set from 2 ms to infinity. Most PLC systems make use of high performance
transistor outputs which are suitable to control the valve directly. The valve is electrically connected to the control
system via the supplied M8 valve cable.
NOTE: To continuously dispense the exact amount with every shot, the Pulse Time must be kept constant. Observe
the cycle time of the PLC; if necessary, check the signal with an oscilloscope.
Electrical Specifications
Item Specification
Maximum operating frequency 100Hz
Pulse Time Starting at 2 ms
Input voltage 24 VDC, PLC compatible
Power consumption 0.5 Amp (peak 5.0 Amp)
M8 Valve Cable Pin Positions
Pin Color Function
1 Brown None
2 Black Valve (+)
3 Blue Valve (-)
Oscillogram (Valve Output) for a Liquidyn P-Jet SolderPlus Valve
Liquidyn P-Jet SolderPlus Jet Valve
45www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Optional Nozzle Heater Control
A nozzle heater can be installed on the valve in place of the retaining nut. The heater can be controlled using a
separate temperature controller (such as the Liquidyn T10) or by the Liquidyn V200 controller.
To use another method for controlling the heater, the following information applies:
• The heater comprises a heating coil and a 100-ohm platinum (PT100) resistance temperature detector (RTD).
• The heater can be triggered by most control units.
• Heater power consumption is approximately 1.3 Amps, with 24 VDC used during the heating process.
NOTE: The maximum heater temperature is 90° C (194° F). For consistent dispensing results, keep the control
deviation to a minimum (lower than 3%).
Nozzle Heater Specifications
Item Specification
Input voltage 24 VDC
Maximum power consumption 1.3 Amp
Maximum nozzle heater temperature 90° C (194° F)
Nozzle Heater Cable Pin Positions
Pin Color Function
1 Brown Heating coil
2 White Heating coil
3 White Not assigned
4 Black PT100 RTD
5 Blue PT100 RTD
6 White Not assigned
6-pin plug
M5 plug
Appendix B, P-Jet SolderPlus Valve Interface Overview
(continued)
Liquidyn P-Jet SolderPlus Jet Valve
46 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Pneumatic Control
To achieve consistent dispensing results, the process parameters must be kept constant. The valve has two air
pressure connections (operating pressure and fluid pressure) which must be continuously supplied with air pressure.
The level of pressure depends on the respective process. Each valve must be separately connected to a continuous
air supply adjustable through a precision pressure regulator. To keep the operating pressure stable and constant,
use a pneumatic accumulator (at least 0.4 liter volume).
Appendix B, P-Jet SolderPlus Valve Interface Overview
(continued)
Operating Pressure Specification
For the operating pressure, connect 6 mm OD tubing to the plug-in connector on the side of the valve.
Item Specification
Input air pressure 3–8 bar (44–116 psi)
Fluid Pressure Specifications
For the fluid pressure, connect 4 mm or 6 mm tubing to the syringe barrel adapter (syringe barrel installations only)
Item Specification
Fluid pressure range 0.1–4.1 bar (1.5–60 psi)
Maximum fluid pressure 100 bar (1450 psi)
CAUTION
Ensure that the pressure limit values for the syringe barrel and air pressure tubing are not exceeded.
NOTE: Nordson EFD recommends installing a precision pressure regulator with a maximum control tolerance of
0.2%.
Valve Configuration Options
• The fluid body can be mounted in other 90-degree positions.
• The operating air pressure connector can be mounted on the opposite side of the valve.
• Standard cartridge centering is 10 cm
2
(1.6"
2
); 30 cm
2
(4.7"
2
) can be supplied upon request.
• The valve can be supplied without cartridge centering, in which case a tubing connector is mounted on the valve.
• The material to be dispensed can be supplied through tubing instead of through a syringe barrel. This tubing is
connected to the valve using an M8 x 1 cap nut.