Pressure Controller LA 302

Transcription

1 Pressure Controller Manual English NORDSON BENELUX MAASTRICHT THE NETHERLANDS

2 This equipment is regulated by the European Union under WEEE Directive 2002/96/EC. See for information about how to properly dispose of this equipment. Order number P/N = Order number for Nordson products Notice This is a Nordson Corporation publication which is protected by copyright. Original copyright date No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Nordson Corporation. The information contained in this publication is subject to change without notice All rights reserved. Trademarks AccuJet, AeroCharge, AquaGuard, Asymtek, Automove, Autotech, Baitgun, Blue Box, CF, CanWorks, Century, Clean Coat, CleanSleeve, CleanSpray, Control Coat, Cross-Cut, Cyclo-Kinetic, Dispensejet, DispenseMate, Durafiber, Durasystem, Easy Coat, Easymove Plus, Econo-Coat, EFD, ETI, Excel 2000, Flex-O-Coat, FlexiCoat, Flexi-Spray, Flow Sentry, Fluidmove, FoamMelt, FoamMix, Helix, Heli-flow, Horizon, Hot Shot, Isocoil, Isocore, Iso-Flo, JR, KB30, Kinetix, Little Squirt, Magnastatic, MEG, Meltex, Microcoat, MicroSet, Millennium, Mini Squirt, Moist-Cure, Mountaingate, MultiScan, Nordson, OmniScan, OptiMix, Package of Values, Patternview, Plasmod, PluraFoam, Porous Coat, PowderGrid, Powderware, Prism, Pro-Flo, ProLink, Pro-Meter, Pro-Stream, PRX, RBX, Rhino, S. design stylized, Saturn, SC5, Seal Sentry, Select Charge, Select Coat, Select Cure, Slautterback, Smart-Coat, Solder Plus, Spectrum, Spray Squirt, Spraymelt, Super Squirt, Sure Coat, Tela-Therm, Trends, Tribomatic, UniScan, UpTime, Veritec, Versa-Coat, Versa-Screen, Versa-Spray, Walcom, Watermark and When you expect more. are registered trademarks of Nordson Corporation. AeroDeck, AeroWash, Apogee, ATS, Auto-Flo, AutoScan, BetterBook, Chameleon, CanNeck, Check Mate, Colormax, Control Weave, Controlled Fiberization, CoolWave, CPX, DuraBlue, Dura Coat, Dura Screen, Dry Cure, E-Nordson, EasyClean, Eclipse, Equi=Bead, ESP, Fill Sentry, Fillmaster, Gluie, icontrol, iflow, Ink-Dot, Iso-Flex, itrend, KVLP, Lacquer Cure, Maxima, MicroFin, MicroMax, Minimeter, Multifil, Origin, PermaFlo, PluraMix, Powder Pilot, Powercure, Primarc, ProBlue, Process Sentry, PurTech, Pulse Spray, Ready Coat, Select Series, Sensomatic, Shaftshield, SheetAire, Spectral, Spectronic, Speed Coat, Speedking, Spray Works, Summit, Sure Brand, Sure Clean, Sure Max, Swirl Coat, Tempus, ThruWave, Tracking Plus, Trade Plus, Universal, VersaBlue, Vista, Web Cure and 2 Rings (Design) are trademarks of Nordson Corporation. Windows is a registered trademark of Microsoft Corporation Nordson Corporation

3 Table of Contents I Table of Contents Nordson International O-1 Europe O-1 Distributors in Eastern & Southern Europe O-1 Outside Europe / Hors d Europe / Fuera de Europa O-2 Africa / Middle East O-2 Asia / Australia / Latin America O-2 Japan O-2 North America O-2 Safety Introduction Qualified Personnel Regulations and Approvals Personal Safety Fire Safety Installation and Electrical Connections Operation Less-obvious Dangers Danger of Burns Maintenance / Repair Liquid Adhesive Hot Melt Material Cleaning Liquid Adhesive Hot Melt Material Liquid Adhesives Thermoplastic Hot Melt Material Action in the Event of a Malfunction Description Intended Use Unintended Use - Example Residual Risks Introduction Updated Bill of Material Description of Functions Features Front Back Nordson Corporation

4 II Table of Contents Installation Transport Unpacking Setup Removal Storage Disposal Electrical Connections Line Voltage Encoder Liquid Adhesive Gun Proportional Pressure Control Valve Accessories Initial Startup Operation Daily Startup Daily Shutdown Switching Off in an Emergency Settings Selecting Type of Setting (Mode Switch A) Setting Minimum Speed (Potentiometer E) Setting Minimum Pressure (Potentiometer C) Setting Maximum Pressure (Potentiometer D) Switching from Automatic to Manual Mode (Mode Switch B). 4-5 Display / LEDs Display LED s Settings Record Maintenance Maintenance Troubleshooting Repair Parts Introduction LA 320 and Accessories Updated Bill of Material Fuse Technical Data General Data Connecting Arrangement Encoder Input Proportional Pressure Control Valve Output Liquid Adhesive Gun Dimensions Nordson Corporation

5 Introduction O-1 Nordson International Europe Country Phone Fax Austria Belgium Czech Republic Denmark Hot Melt Finishing Finland France Germany Erkrath Lüneburg Nordson UV Italy Netherlands Norway Hot Melt Finishing Poland Portugal Russia Slovak Republic Spain Sweden Switzerland United Kingdom Hot Melt Finishing Nordson UV Distributors in Eastern & Southern Europe DED, Germany Nordson Corporation All rights reserved NI_EN_L 1105

6 O-2 Introduction Outside Europe / Hors d Europe / Fuera de Europa For your nearest Nordson office outside Europe, contact the Nordson offices below for detailed information. Pour toutes informations sur représentations de Nordson dans votre pays, veuillez contacter l un de bureaux ci-dessous. Para obtener la dirección de la oficina correspondiente, por favor diríjase a unas de las oficinas principales que siguen abajo. Contact Nordson Phone Fax Africa / Middle East DED, Germany Asia / Australia / Latin America Pacific South Division, USA Japan North America Japan Canada USA Hot Melt Finishing Nordson UV NI_EN_L Nordson Corporation All rights reserved

7 Safety 1-1 Section 1 Safety Introduction Read and follow these safety instructions. Task- and equipment-specific warnings, cautions, and instructions are included in equipment documentation where appropriate. Make sure all equipment documentation, including these instructions, is accessible to persons operating or servicing equipment. Qualified Personnel Equipment owners are responsible for making sure that Nordson equipment is installed, operated, and serviced by qualified personnel. Qualified personnel are those employees or contractors who are trained to safely perform their assigned tasks. They are familiar with all relevant safety rules and regulations and are physically capable of performing their assigned tasks. Regulations and Approvals Make sure all equipment is rated and approved for the environment in which it is used. Any approvals obtained for Nordson equipment will be voided if instructions for installation, operation, and service are not followed Nordson Corporation SIG05_EN_A_0100

8 1-2 Safety Personal Safety To prevent injury follow these instructions. Do not operate or service equipment unless you are qualified. Do not operate equipment unless safety guards, doors, or covers are intact and automatic interlocks are operating properly. Do not bypass or disarm any safety devices. Keep clear of moving equipment. Before adjusting or servicing moving equipment, shut off the power supply and wait until the equipment comes to a complete stop. Lock out power and secure the equipment to prevent unexpected movement. Relieve (bleed off) hydraulic and pneumatic pressure before adjusting or servicing pressurized systems or components. Obtain and read Material Safety Data Sheets (MSDS) for all materials used. Follow the manufacturer s instructions for safe handling and use of materials, and use recommended personal protection devices. To prevent injury, be aware of less-obvious dangers in the workplace that often cannot be completely eliminated, such as hot surfaces, sharp edges, energized electrical circuits, and moving parts that cannot be enclosed or otherwise guarded for practical reasons. SIG05_EN_A_ Nordson Corporation

9 Safety 1-3 Fire Safety To avoid a fire or explosion, follow these instructions. Do not smoke, weld, grind, or use open flames where flammable materials are being used or stored. Do not heat materials to temperatures above those recommended by the manufacturer. Make sure heat monitoring and limiting devices are working properly. Provide adequate ventilation to prevent dangerous concentrations of volatile particles or vapors. Refer to local codes or your material MSDS for guidance. Clean, maintain, test, and repair equipment according to the instructions in your equipment documentation. Use only replacement parts that are designed for use with original equipment. Contact your Nordson representative for parts information and advice. Installation and Electrical Connections Prior to installation, check intended location and surrounding area for any potential hazards during operation. All electrical, pneumatic, gas and hydraulic connections and installation of all system components may only be carried out by qualified personnel. Observe installation instructions for components and accessories. Equipment must be properly grounded and fused according to the rated current consumption (see ID plate). Cables which run outside the system must regularly be checked for wear or damage. Power supply wire gauge and insulation must be sufficient to handle rated current consumption. Cables must never be squeezed or pinched. Do not locate cables or hoses in high traffic areas. WARNING: Failure to install the system properly, and especially failure to ensure electrical, pressurized and high pressure feed connections are made correctly may result in serious injury or death Nordson Corporation SIG05_EN_A_0100

10 1-4 Safety Operation The system should only be operated when it is in working order. It should only by operated by qualified persons following all regulations valid for liquid adhesive systems. Never allow the system to be operated by personnel under the influence of substances which reduce their reaction times, or who are not able to operate the equipment for physical reasons. Prior to each startup of the system, check protection and warning devices and make sure they are fully functional. Do not operate the equipment if these devices are not functioning properly. When the removal of safety equipment is required for installation, maintenance or repair, it must be reconnected immediately upon completion of the work. In a humid environment, only equipment featuring a corresponding protection may be operated. Do not operate the system in an explosive environment. Keep parts of the body and clothing away from rotating parts. Do not wear loose articles of clothing when operating or servicing equipment with rotating parts. Remove wrist watches, rings, necklaces or similar jewelry and pin up or cover long hair before performing any work on or with the equipment. The wearing of protective gloves may prove hazardous in certain circumstances where rotating parts are present and may therefore be forbidden. To carry out measurements on the substrate or system components, switch off parent machine and/or system and wait until the equipment comes to a standstill. Never point guns or applicator nozzles at yourself or other persons. SIG05_EN_A_ Nordson Corporation

11 Safety 1-5 Less-obvious Dangers WARNING: An operator or service technician working with the equipment should be aware of the less-obvious dangers that often cannot be completely minimized at production sites: Pressurized system components Exposed surfaces of the unit which cannot be practically safeguarded. They may be hot and take time to cool after the unit has been operating. The possibility that electrical potentials may remain in the system after the system was de-energized Liquid adhesive vapors or hot melt material and vapors Hydraulically or pneumatically operated system components Uncovered winding parts Danger of Burns Contact with hot melt materials or hot areas of the unit may produce a severe skin burn. WARNING: Hot! Risk of burns. Wear heat-protective clothing, safety goggles, and/or heat-protective gloves depending on the symbols shown. Be extremely careful when using hot melt material. Even solidified material may still be very hot. Always wear protective clothing which safely covers all exposed parts of the body. In case of burns: Immediately cool affected skin areas using cold, clean water. Do not forcefully remove hot melt material from the skin. Immediately seek medical attention Nordson Corporation SIG05_EN_A_0100

12 1-6 Safety Maintenance / Repair Allow only qualified personnel to perform the procedures described in this document. Work should only be carried out on a completely depressurized system, following all safety procedures. WARNING: Some voltage is still present in the control cabinet even after equipment has been turned off at the main switch. Complete the following steps prior to maintenance or repair: Disconnect external power supply. Lock out external power supply. Check no voltage is present. Ground and short. Cover nearby live sections. Secure pneumatically- and hydraulically-operated equipment against uncontrolled movement. Only use genuine Nordson parts. Liquid Adhesive NOTE: Depending on the configuration of the liquid adhesive application system, high pressure may remain between application head and pressure regulator or pump even after the system has been switched off using the main switch or the emergency stop. This especially applies to multi hose configurations between pumps and application heads. Prior to maintenance and repair work it is therefore essential to ensure that all liquid adhesive application system components are depressurized as follows: 1. Release input pressure in front of pump by shutting off customer compressed air supply. 2. Release any remaining system pressure behind the pumps by manually operating the application heads. Switch off system electrically. If liquid adhesive application system is left idle for extended periods (e.g. overnight or long breaks) Nordson recommends applying Vaseline to the application head nozzles to prevent them from drying out and becoming blocked as a result. Hot Melt Material Follow the specific instructions provided in this manual to relieve the system pressure in the entire unit. Always use tools with insulated handles when removing or installing components. SIG05_EN_A_ Nordson Corporation

13 Safety 1-7 Cleaning NOTE: Always refer to the manufacturer s Material Safety Data Sheet or material information sheet before working with any cleaning fluids. WARNING: Never clean any aluminum part or flush any system using halogenated hydrocarbon fluids. Examples of common halogenated hydrocarbons are: dichloromethylene, 1,1,1-trichloroethylene, and perchloroethylene. Halogenated hydrocarbons may react violently with aluminum parts. WARNING: Fire, open flame, and smoking are prohibited when cleaning fluids are used. Observe all explosion prevention regulations. Cleaning fluids may only be heated using temperature-controlled and explosion-protected heaters. Never use an open flame to clean the system or its components. Ensure sufficient room ventilation to draw off vapors. Liquid Adhesive Check that (warm) water can be used to clean the liquid adhesive system components, possibly with the addition of household washing up liquid. If this is not possible, use only the cleaning fluid stated in the liquid adhesive manufacturer s information. If the manufacturer recommends heating the cleaner, note the flash point. Disposal must be according to the waste key in the DIN Safety Data Sheet. Liquid adhesives or residue, solvent or separating agents must not be released into open waterways. In the case of a leak or spillage, contain liquid and if necessary use an absorbant material e.g. sawdust to soak it up; then proceed according to the relevant waste disposal regulations. If the liquid adhesive application system is to be idle for an extended period, the entire system should be flushed and outlets sealed with Vaseline. Warm water is usually used to flush application systems with which water based liquid adhesives are processed. If the liquid adhesive manufacturer specially recommends a flushing agent, the manufacturer s safety and disposal details must be followed. Hot Melt Material Use only cleaning fluids designed or intended to be used with the hot melt material being used in the unit. Never use paint fluids under any circumstances. Note the flash point of the cleaning fluid used. Only use a controlled heating method to heat fluids Nordson Corporation SIG05_EN_A_0100

14 1-8 Safety Liquid Adhesives As there is a wide variety of liquid adhesives available with different compositions and characteristics, it is impossible here to give an exhaustive list of safety notes reflecting the typical characteristics of liquid adhesives. The use of liquid adhesives in Nordson s liquid adhesive application systems therefore requires reference to the liquid adhesive manufacturer s documents beforehand. Information relating to safety aspects e.g. concerning solvent content, hazards and countermeasures in the event of liquid adhesive coming into contact with skin or mucous membranes are contained in the technical data sheets and the DIN Safety Data Sheets from the manufacturer. NOTE: It may be necessary to refer to the manufacturer s notes on the use of materials from a third party. These may be required for processing a liquid adhesive, but hazards arising from their use are not necessarily mentioned by the manufacturer of the liquid adhesive. Liquid adhesives may still give off vapors when they are processed correctly. The smell produced can cause some annoyance. This is especially true where liquid adhesives are used that contain solvent, thus requiring the use of breathing equipment e.g. a filter. If the prescribed processing conditions are not followed, harmful decomposition products may develop. Therefore, the vapors must be removed. Wash hands well before breaks and when work is finished. If liquid adhesive comes into contact with eyes or mucous membranes, rinse well with water especially the eyes. Change damp clothes, and seek medical advice if it is swallowed. If solvents or separating agents are used to process a liquid adhesive, follow the safety and disposal information from the manufacturer. SIG05_EN_A_ Nordson Corporation

15 Safety 1-9 Thermoplastic Hot Melt Material NOTE: Always refer to the material manufacturer s Material Safety Data Sheet (MSDS) or material information sheet before working with any hot melt material. Action in the Event of a Malfunction Ensure the work area is adequately ventilated. Do not exceed recommended processing temperatures. Doing so creates a danger to personnel due to decomposition of the material. If a system or any equipment in a system malfunctions, shut off the system immediately and perform the following steps: Disconnect and lock out system electrical power. Close hydraulic and pneumatic shutoff valves and relieve pressures. Identify the reason for the malfunction and correct it before restarting the system Nordson Corporation SIG05_EN_A_0100

16 1-10 Safety SIG05_EN_A_ Nordson Corporation

17 Description 2-1 Section 2 Description Intended Use Pressure controllers in the series can be used to control proportional pressure control valves and/or glue application pumps for Nordson liquid adhesive guns. They are designed to process cold glue and hot melt adhesive. The two integrated outlets for electropneumatic adhesive guns allow continuous gluing. units can be combined with Nordson pattern controllers for intermittent gluing. NOTE: Cold glue and other adhesives are referred to as glue in this manual. The pressure controller is referred to as controller. Unintended Use - Example - The unit may not be operated in a potentially explosive atmosphere. Residual Risks WARNING: Do not touch the contacts after disconnecting the mains plug. Capacitive charge from the electronic components causes the controller to retain residual voltage, which could result in a slight electrical shock upon contact. The capacitive charge is discharged after approx. 60 seconds. WARNING: Glue escapes from the adhesive gun when the solenoid valves are triggered. Risk of splashing. Wear safety goggles. Do not program during adhesive gun assembly. The risk is particularly high during: Production machine startup Reverse mode Manual mode 2006 Nordson Corporation

18 2-2 Description Introduction The is a user-friendly pressure controller that controls proportional pressure control valves and/or glue application pumps as a factor of the machine speed and that triggers electropneumatic adhesive guns for continuous gluing. The unit is operated with easy-to-use switches and potentiometers in conjunction with LEDs and a four-digit seven-segment display. Updated Bill of Material Please observe that your Nordson equipment may differ slightly from that described in the manual or certain information provided in it. Refer to the updated Bill of Material which is packed with your equipment. Description of Functions The following principle drawing demonstrates gluing with the. Adhesive is to be applied to a substrate (9). The production machine, also called the parent machine, transports the substrate on a conveyor belt under the liquid adhesive gun (6). When the production machine has reached the minimum speed, the begins gluing. NOTE: In general, a production machine refers to a machine in which Nordson equipment for adhesive application is integrated (e.g. a packing machine). The term means the same as parent machine, which may appear in other Nordson literature. A gear box mechanically links the encoder (4) to the production machine transport equipment. The encoder is needed to determine the parent machine speed, and it supplies a pulse for each mm of the covered path. When the production machine has reached the set minimum speed, the solenoid valve on the adhesive gun switches, allowing the constant compressed air to enter the adhesive gun and the nozzle to open. Depending on the speed of the production machine, current of 0 to 20 ma is supplied to the proportional pressure control valve (2). The current causes the position of the diaphragm in the adhesive pressure regulator (12) to change. The glue in the container (13) is fed to the adhesive pressure regulator (12) by the pump. The glue reaches the adhesive guns (6) with either low or high pressure, depending on the diaphragm setting Nordson Corporation

19 Description Electrical Components Compressed air Adhesive Fig. 2-1 Principle drawing 1 Compressed air supply with maintenance unit 2 Proportional pressure control valve 3 Pressure controller 4 Encoder 5 Power cable solenoid valve 6 Liquid adhesive gun 7 Adhesive pattern 8 Glue line 9 Substrate 10 Transport belt 11 Uncoated adhesive pattern 12 Adhesive pressure regulator LA Adhesive container 14 Adhesive pump LA Compressed air hose NOTE: Instead of the container pump with adhesive pressure regulator shown here, a diaphragm pump, pressure container or similar could also be connected Nordson Corporation

20 2-4 Description Features 4-digit, 7-segment display, 5 LEDs and 2 mode switches for operation and control Automatic machine speed-dependent pressure control 1 potentiometer for setting the minimum speed (1 m/min to 300 m/min) at which pressure control should commence Production speed display (max. 600 m/min) Display of minimum and maximum outlet current for the proportional pressure control valves (0-20 ma) 2 potentiometers each for setting the required current (0-20 ma) or 0-10 V DC for each proportional pressure control valve 1 LED to indicate that the speed has fallen below the minimum speed 1 LED to indicate both automatic and manual mode 1 LED to indicate fault/short-circuited electropneumatic adhesive guns (at > 1.6 A) 1 LED each to indicate interrupted proportional valves or proportional pressure control valves that are not connected 2 outputs for connecting two proportional pressure control valves 2 outputs for connecting electropneumatic adhesive guns 1 output for connecting an encoder Integrated power supply with automatic line voltage adaptation between 100 V AC and 240 V AC Nordson Corporation

21 Description 2-5 Front Fig Display (7-segment display) 2 Setting for pressure display, proportional pressure control valve 2 3 Setting for pressure display, proportional pressure control valve 1 4 Setting for minimum speed display 5 Setting for production speed display 6 Mode switch (A) 7 LED (1) for automatic and manual mode 8 Symbol for automatic mode (left switch position) 9 Switch automatic/manual mode (B) 10 Central position (without function) 11 Symbol for manual mode (right switch position) 12 Symbol for adhesive gun 13 Alarm LED (2) for adhesive gun 14 Alarm symbol for adhesive gun 15 Alarm symbol for proportional pressure control valve 1 16 Alarm LED (4) for proportional valve 1 17 Symbol for pressure setting of proportional pressure control valve 1 and 2 18 Alarm LED (5) for proportional valve 2 19 Alarm symbol for proportional pressure control valve 2 20 Symbol for maximum pressure 21 Potentiometer (G) for maximum pressure (proportional pressure control valve 2) 22 Potentiometer (D) for maximum pressure (proportional pressure control valve 1) 23 Symbol for pressure settings of proportional pressure control valve 1 and 2 24 Potentiometer (F) for minimum pressure (proportional pressure control valve 2) 25 Potentiometer (C) for minimum pressure (proportional pressure control valve 1) 26 Symbol for minimum pressure 27 Potentiometer (E) for minimum speed 28 LED (3) to indicate that speed has fallen below minimum speed 29 Symbol for minimum speed setting NOTE: Beginning here, mode switches and potentiometers on the front of the pressure controller will be designated alphabetically as mode switch / potentiometer (A), (B), (C),... beginning at the top left and moving to the right. The LEDs are designated LED (1), LED (2),... beginning at the top left and moving to the right Nordson Corporation

22 2-6 Description Back Fig Ventilation slit 2 Output for adhesive gun 1 3 Symbol for adhesive guns 4 Output for adhesive gun 2 5 Mains switch 6 Unit port 7 Encoder symbol 8 Encoder input 9 Proportional pressure control valve output 10 Proportional pressure control valve output 11 Pressure output symbol 2006 Nordson Corporation

23 Installation 3-1 Section 3 Installation WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Transport Transport the unit such as to prevent damage. Do not throw the unit. Use suitable packing material, e.g. Styrofoam and sturdy cardboard. Refer to Technical Data for weight. Protect the unit from humidity, dust, jolts and vibrations. Unpacking Unpack the unit carefully to prevent damage. Then check for any damage caused during shipping. Save the packing material for later use. Otherwise reuse the material or dispose of it properly according to local regulations. Setup Protect the unit from humidity, excessive dust accumulation and vibrations. Do not block ventilation slits (1, Fig. 3-1). Refer to Technical Data for dimensions Nordson Corporation

24 3-2 Installation 1 2 Fig Ventilation slit 2 Mains switch Removal Switch off the power supply (2). Then detach all electrical connections. Storage Pack the pressure controller in suitable packing material, e.g. Styrofoam and sturdy cardboard. Protect from humidity, dust and extreme temperature fluctuations (condensation). Disposal Dispose of properly according to local regulations Nordson Corporation

25 Installation 3-3 Electrical Connections Line Voltage WARNING: The pressure controller is designed to accommodate the voltage stated on the unit port (1). It adapts to any voltage within the given range. 1. Plug the power cable into the unit port (1) on the back of the pressure controller. 2. Connect the power cable to the shockproof socket. 1 Fig. 3-2 Electrical connections 1 Unit port Encoder The adhesive pressure is controlled as a factor of the production machine speed. Thus an encoder (1) must be connected. A gear box connects it to the production machine, and it delivers a pulse per mm. 1 Fig. 3-3 Electrical connections 1 Encoder 2006 Nordson Corporation

26 3-4 Installation Electrical Connections (contd.) Liquid Adhesive Gun A solenoid valve triggered by the opens and closes the adhesive guns. The solenoid valve is located on the adhesive gun and is electrically connected to the pressure controller. 1 Fig. 3-4 Electrical connections 1 Liquid adhesive guns Proportional Pressure Control Valve The glue for the adhesive guns can be fed e.g. by a connected container pump via a pressure regulator. The pressure regulator is controlled (pressure rises as production speed increases) via a proportional pressure control valve supplied by one of the pressure controller outputs. Two proportional pressure control valves can be connected to these outputs. 1 Fig. 3-5 Electrical connections 1 Proportional pressure control valve 2006 Nordson Corporation

27 Installation 3-5 Accessories Required accessories Sleeve Encoder with cable 8 Power cable for proportional valve 9, 10 Adhesive gun with cable 2, 4 Power cable Fig Nordson Corporation

28 3-6 Installation Initial Startup NOTE: The compressed air used should be filtered and dry. If necessary, a water separator or a pneumatic dehumidifier should be used to prevent ice from forming. It is imperative to perform the following steps in the stated order for initial startup. The stated position numbers refer to Figure Connect the compressed air to the air conditioning unit (1). 2. Stop compressed air supply on the air conditioning unit. 3. Connect the compressed air supply to the container pump (14). 4. Connect the compressed air supply to the adhesive gun (15). 5. Connect the proportional valve compressed air outlet (2) to the adhesive pressure regulator (12). 6. Connect the adhesive outlet of the container pump to the pressure regulator. 7. Connect the glue outlet of the adhesive pressure regulator to the adhesive guns (8). 8. Electrically connect the to the adhesive gun (5). 9. Electrically connect the to the proportional pressure control valve (2). 10. Electrically connect the to the encoder (4), and mechanically connect the production machine and encoder through the gear box. 11. Start the production machine and determine the lowest possible production speed. 12. Switch on the applicator with the mains switch (5, Fig. 2-3). NOTE: Mode switches and potentiometers on the front of the pressure controller will be designated alphabetically as mode switch / potentiometer (A), (B), (C),... beginning at the left and moving to the right. The LEDs are designated LED (1), LED (2),... beginning at the top left and moving to the right. 13. Set the minimum speed (lowest speed at which the adhesive gun nozzles open) to the desired initial speed (but not < 4 m/min) using the potentiometer (E) on the. LED (3) should go off. 14. Slowly increase the compressed air on the air conditioning unit (1, Fig. 3-7). 15. Run the system at minimum production speed and set the minimum pressure for proportional pressure control valve 1 with potentiometer (C) or the minimum pressure for proportional pressure control valve 2 with potentiometer (F) such that the glue bead is even and cohesive Nordson Corporation

29 Installation Run the system at maximum production speed and set the maximum pressure for proportional pressure control valve 1 with potentiometer (D) or the maximum pressure for proportional pressure control valve 2 with potentiometer (G) such that the glue bead is even and cohesive (production machine speed may need to be throttled). Lock the setting. NOTE: If the quality of the glue bead is not satisfactory, continue to adjust the minimum speed setting on the production machine and on the and adjust the respective minimum pressure until the glue bead is correct. If the production machine is run at a speed below the minimum speed set on the, pressure control does not occur Electrical components Compressed air Adhesive Fig Nordson Corporation

30 3-8 Installation 2006 Nordson Corporation

31 Operation 4-1 Section 4 Operation WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. WARNING: Risk of splashing. Glue escapes from the adhesive gun when the solenoid valves are triggered. Wear safety goggles. Do not program during adhesive gun assembly. The risk is particularly high during: Production machine startup Reverse mode Manual mode NOTE: Mode switches and potentiometers on the front of the pressure controller will be designated alphabetically as mode switch / potentiometer (A), (B), (C),... beginning at the top left and moving to the right. The LEDs are designated LED (1), LED (2),... beginning at the top left and moving to the right Nordson Corporation

32 4-2 Operation Daily Startup 1 Switch on mains switch (1). Fig Mains switch Daily Shutdown Switch off mains switch. Switching Off in an Emergency Switch off mains switch. Settings The pressure controller is operated with switches and potentiometers. Their functions are described in this section. Selecting Type of Setting (Mode Switch A) The following parameters are set with mode switch (A): Fig. 4-2 A Measurement of production machine speed Minimum speed display Display of minimum and maximum pressure values (in ma) for proportional valves 1 and 2. NOTE: All settings are also possible even if the mode switch is not moved. However, it is advisable to turn the mode switch to the respective position; otherwise the corresponding value will not appear in the display Nordson Corporation

33 Operation 4-3 A The calculates the pressure values on the basis of the production machine speed. For the display to be correct: The encoder must be installed (Use suitable gear box) The maximum speed may not exceed 600 m/min. Turn the mode switch (A) to the top position to display the production machine speed. NOTE: To check, change the production machine speed and observe the display. Fig. 4-3 Setting Minimum Speed (Potentiometer E) Fig. 4-4 E 3 A Potentiometer (E) is used to set the minimum speed. Pressure is not controlled below this speed. If pneumatic valves are connected, their nozzles are not opened below the minimum speed. If the production machine falls below the speed set on the, LED (3) lights up. 1. Reduce the production machine speed to the desired lowest speed (but not < 1 m/min). 2. Set mode switch (A) to Minimum speed. 3. Set the minimum speed with potentiometer (E) on the. 4. Lock the setting with the fixing device on potentiometer (E). NOTE: Ensure that the production machine speed is always somewhat higher than the set minimum speed. NOTE: It is advisable to make a note of the values to be able to later replicate production (Refer to Settings Record Form at the end of this section) Nordson Corporation

34 4-4 Operation Setting Minimum Pressure (Potentiometer C) C Fig. 4-5 F A Potentiometer (C) is used to set the minimum pressure for proportional pressure control valve 1. The minimum pressure is the pressure required for the glue bead to be even and cohesive at the lowest possible production machine speed. 1. Slow down the production speed to the desired minimum speed (but not < 1 m/min). 2. Set mode switch (A) to Pressure display. 3. Set the current for proportional pressure control valve 1 with potentiometer (C) such that the desired bead quality is achieved. 4. Lock the setting with the fixing device on potentiometer (C). NOTE: Potentiometer (F) is used to set the minimum pressure for proportional pressure control valve 2. Do this by moving mode switch (A) to the bottom setting. NOTE: It is advisable to make a note of the values to be able to later replicate production (Refer to Settings Record Form at the end of this section). Setting Maximum Pressure (Potentiometer D) Fig. 4-6 A D G Potentiometer (D) is used to set the maximum pressure for proportional pressure control valve 1. The maximum pressure is the pressure required for the glue bead to be even and cohesive at the greatest possible production machine speed. 1. Increase the production machine speed to the desired maximum speed (but not > 600 m/min). 2. Set mode switch (A) to Pressure display. 3. Set the current for proportional pressure control valve 1 with potentiometer (D) such that the desired bead quality is achieved. 4. Lock the setting with the fixing device on potentiometer (D). NOTE: Potentiometer (G) is used to set the maximum pressure for proportional pressure control valve 2. Do this by moving mode switch (A) to the bottom setting. NOTE: It is advisable to make a note of the values to be able to later replicate production (Refer to Settings Record Form at the end of this section) Nordson Corporation

35 Operation 4-5 Switching from Automatic to Manual Mode (Mode Switch B) Mode switch (B) is used to switch to the following modes: Position Meaning Left Automatic operation: Pressure controller operates with the set values. B Center No operation: Pressure is being controlled, but any pneumatic valves connected are not being controlled. Since the nozzles do not open, no glue flows out. This position is useful e.g. when filling material, etc. Right Manual mode: Adhesive guns open and glue flows out. Pressure is controlled even when the production machine speed changes. This switch position is intended to be used for testing purposes. Fig. 4-7 Display / LEDs A 7-segment display and 5 LEDs serve as the display elements. Display 1 The display serves: To indicate the production machine speed To indicate the minimum speed (in setting mode) To indicate minimum and maximum pressure for the proportional pressure control valves (in setting mode). Fig Nordson Corporation

36 4-6 Operation LED s The LEDs indicate the following: LED Meaning 1 Illuminated in automatic mode when the required minimum speed is exceeded; illuminated in manual mode Illuminated when one of the electropneumatic solenoid valves on the adhesive gun has short-circuited or when current > 1.6 A is flowing. 3 Illuminated when the production machine speed is below the minimum speed set on the. 4 Illuminated when proportional pressure control valve 1 is not connected or the connection is interrupted Illuminated when proportional pressure control valve 2 is not connected or the connection is interrupted. Fig Nordson Corporation

37 Operation 4-7 Settings Record This form can be used to keep a record of the essential production parameters. Please make sufficient copies of form before filling out. Production information: Adhesive: Manufacturer Processing temperature Viscosity Cleaning agent: Manufacturer Flash point Pressures: Operating air pressure in bar Minimum pressure in ma for proportional pressure control valve 1 Maximum pressure in ma for proportional pressure control valve 1 Minimum pressure in ma for proportional pressure control valve 2 Maximum pressure in ma for proportional pressure control valve 2 Speeds: Lowest possible production machine speed Highest possible production machine speed Minimum speed set on Motor/pump speed(s) of adhesive feeding unit: Remarks: Form filled out by: Name Date 2006 Nordson Corporation

38 4-8 Operation 2006 Nordson Corporation

39 Maintenance 5-1 Section 5 Maintenance WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Maintenance The unit requires no maintenance. Check all cables regularly for damage. Replace damaged cables immediately! Troubleshooting Problem Possible Cause Corrective Action Refer to Unit not functioning Mains plug not connected Connect mains plug Installation Unit is not switched on Switch on unit Operation Mains fuses defective Check mains fuses, replace if necessary Repair No glue application Adhesive gun does not switch Adhesive gun solenoid valve not connected to Installation Mode switch (B) not in left position Operation No glue application, LED (3) illuminated Production speed too low Increase production speed Operation No glue application, LED (2) illuminated Solenoid valve on adhesive gun defective Replace adhesive gun Installation Too little glue applied, LED (4) and/or LED (5) illuminated Proportional pressure control valve defective or not connected Replace or connect proportional pressure control valve Installation 2006 Nordson Corporation Edition 06/06

40 5-2 Maintenance Troubleshooting (contd.) Problem Possible Cause Corrective Action Refer to Bead too thin at low speed Current for minimum pressure too low Increase current Operation Bead too thin at high speed Current for maximum pressure too low Increase current Operation Bead too thick at low speed Current for minimum pressure too high Reduce current Operation Bead too thick at high speed Current for maximum pressure too high Reduce current Operation Edition 06/ Nordson Corporation

41 Maintenance 5-3 Repair NOTE: Repairs to be performed by the customer are limited to replacing defective fuses. Any other repair work should be performed by Nordson customer service. NOTE: Only original Nordson spare parts may be used. Problem Possible Cause Corrective Action Refer to Unit not functioning Mains plug not connected Connect mains plug Installation Unit is not switched on Switch on unit Operation Mains fuses defective Check mains fuses, replace if necessary Below Fig. 5-1 Mains switch and fuses 1 Mains switch 2 Fuse carrier slid into place 3 Fuse carrier 4 Cover for fuse compartment NOTE: The fuse can be pressed out the side of the fuse carrier Nordson Corporation Edition 06/06

42 5-4 Maintenance Edition 06/ Nordson Corporation

43 Parts 6-1 Section 6 Parts Introduction Please contact the nearest Nordson facility to order parts. The following parts lists and the illustrations contain a description of the parts and their respective designations. LA 320 and Accessories Updated Bill of Material Please observe that your Nordson equipment may differ slightly from that described in the manual or certain information provided in it. Refer to the updated Bill of Material which is packed with your equipment. Part Description Pressure controller Proportional pressure control valve with 1 outlet, with cable and reducing valve Proportional pressure control valve with 2 outlets, with cable and reducing valve Power cable for proportional pressure control valve, 5 m (needed for each outlet) Encoder Rubber-coated wheel for encoder Wear-resistant wheel for encoder Connecting cable for encoder, 5 m Connecting cable for encoder, 15 m Extension cable for encoder, 5 m Power cable for pneumatic adhesive guns, 5 m 2006 Nordson Corporation

44 6-2 Parts Fuse Part Description Fuse 3.15 AT (for operating voltage V AC ) 2006 Nordson Corporation

45 Technical Data 7-1 Section 7 Technical Data General Data Line voltage/frequency V AC, 0.6 A, 50/60 Hz Encoder Voltage: 24 V DC Input: NPN Resolution: 1 pulse/mm Input cycle: 0-10 khz = m/min Current outputs for proportional pressure control valves Minimum speed Current output for pneumatic adhesive guns 2 x 0-20 ma and 0-10 V DC Display of open outputs by LED Adjustable from m/min Hysteresis: +/ 0.5 m/min 1.4 A Overcurrent display 1.6 A by LED IP degree of protection IP 20 Dimensions H: 135 mm W: 260 mm D: 240 mm Weight Operating temperature Storage temperature 2 kg 0-60 C ( F) C ( F) 2006 Nordson Corporation

46 7-2 Technical Data Connecting Arrangement Encoder Input PIN Function Ground V NPN 4 PE Fig. 7-1 Encoder input Proportional Pressure Control Valve Output PIN Function Ground 24 V DC ma output V output V DC Fig. 7-2 Output to proportional pressure control valve Liquid Adhesive Gun PIN Function output 2 Not assigned 3 output PE Fig. 7-3 Output to adhesive gun 2006 Nordson Corporation

47 Technical Data 7-3 Dimensions Fig. 7-4 Dimensions 2006 Nordson Corporation

48 7-4 Technical Data 2006 Nordson Corporation