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NORDSON ENGINEERING GMBH � LÜNEBURG � GERMANY
Hot Melt ApplicatorsEP 11 / EP 11 N
EP 12 V / EP 12 L / EP 12 RV
Manual P/N 317091G- English -
Issued 03/11
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Note
This document is valid for the entire series.
Order numberP/N = Order number for Nordson products
NoticeThis is a Nordson Corporation publication which is protected by copyright. Original copyright date 1997.
No part of this document may be photocopied, reproduced, or translated to another language without the priorwritten consent of Nordson Corporation. The information contained in this publication is subject to change
without notice.
� 2011 All rights reserved.
TrademarksAccuJet, AeroCharge, Apogee, AquaGuard, Asymtek, Automove, Autotech, Baitgun, Blue Box, Bowtie, CanWorks, Century, CF, CleanSleeve,CleanSpray, Color‐on‐Demand, ColorMax, Control Coat, Coolwave, Cross‐Cut, cScan+, Dispensejet, DispenseMate, DuraBlue, DuraDrum, Durafiber,DuraPail, Dura‐Screen, Durasystem, Easy Coat, Easymove Plus, Ecodry, Econo‐Coat, e.DOT, EFD, Emerald, Encore, ESP, e stylized, ETI‐stylized, Excel2000, Fillmaster, FlexiCoat, Flexi‐Spray, Flex‐O‐Coat, Flow Sentry, Fluidmove, FoamMelt, FoamMix, Fulfill, GreenUV, HDLV, Heli‐flow, Helix, Horizon,Hot Shot, iControl, iDry, iFlow, Isocoil, Isocore, Iso‐Flo, iTRAX, JR, KB30, Kinetix, LEAN CELL, Little Squirt, LogiComm, Magnastatic, March, Maverick,MEG, Meltex, Microcoat, Micromark, MicroSet, Millenium, Mini Squirt, Moist‐Cure, Mountaingate, MultiScan, Nordson, OptiMix, Package of Values,PatternView, PermaFlo, PicoDot, PluraFoam, Porous Coat, PowderGrid, Powderware, Precisecoat, PRIMARC, Printplus, Prism, ProBlue, Prodigy,Pro‐Flo, ProLink, Pro‐Meter, Pro‐Stream, RBX, Rhino, Saturn, Saturn with rings, Scoreguard, SC5, S. design stylized, Seal Sentry, Select Charge, SelectCoat, Select Cure, Signature, Slautterback, Smart‐Coat, Solder Plus, Spectrum, Speed‐Coat, Spraymelt, Spray Squirt, Super Squirt, SureBead, SureClean, Sure Coat, Sure‐Max, Sure Wrap, Tela‐Therm, Tracking Plus, TRAK, Trends, Tribomatic, TrueBlue, TrueCoat, Ultra, UniScan, UpTime, u‐TAH,Vantage, Veritec, VersaBlue, Versa‐Coat, VersaDrum, VersaPail, Versa‐Screen, Versa‐Spray, Walcom, Watermark, When you expect more. areregistered trademarks - ® - of Nordson Corporation.
Accubar, Advanced Plasma Systems, AeroDeck, AeroWash, AltaBlue, AltaSlot, Alta Spray, AquaCure, Artiste, ATS, Auto‐Flo, AutoScan, Axiom, BestChoice, BetterBook, Blue Series, Bravura, CanNeck, CanPro, Celero, Chameleon, Champion, Check Mate, ClassicBlue, Classic IX, Clean Coat, Cobalt,ContourCoat, Controlled Fiberization, Control Weave, CPX, cSelect, Cyclo‐Kinetic, DispensLink, DropCure, Dry Cure, DuraBraid, DuraCoat, e.dot+,E‐Nordson, Easy Clean, EasyOn, EasyPW, Eclipse, Equalizer, EquiBead, Exchange Plus, FillEasy, Fill Sentry, Flow Coat, Fluxplus, G‐Net, G‐Site, GetGreen With Blue, Gluie, Ink‐Dot, IntelliJet, iON, Iso‐Flex, iTrend, KVLP, Lacquer Cure, Maxima, Mesa, MicroFin, MicroMax, Mikros, MiniBlue, MiniEdge,Minimeter, MonoCure, Multifil, MultiScan, Myritex, Nano, NexJet, OmniScan, OptiStroke, Origin, Partnership+Plus, PatternJet, PatternPro, PCI, Pinnacle,Plasmod, PluraMix, Powder Pilot, Powder Port, Powercure, Process Sentry, Pulse Spray, PurTech, Quad Cure, Ready Coat, RediCoat, Royal Blue, SelectSeries, Sensomatic, Shaftshield, SheetAire, Smart, Smartfil, SolidBlue, Spectral, Spectronic, SpeedKing, Spray Works, Summit, Sure Brand, SureFoam,SureMix, SureSeal, Swirl Coat, TAH, Tempus, ThruWave, TinyCure, Trade Plus, Trlogy, Ultra FoamMix, UltraMax, Ultrasaver, Ultrasmart, Universal,ValueMate, Versa, Viper, Vista, WebCure, 2 Rings (Design) are trademarks - � - of Nordson Corporation.
Designations and trademarks stated in this document may be brands that, when used by third parties for their own purposes, could lead to violation of the owners' rights.
Table of Contents I
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Table of Contents
Safety Instructions 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Intended Use 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unintended Use ‐ Examples ‐ 1. . . . . . . . . . . . . . . . . . . . . . . . . . .Residual Risks 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Note on Manual 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Definition of Term(s) 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Applicator 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Melter 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Control Module 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series Overview 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Explanation of Type Designation 2. . . . . . . . . . . . . . . . . . . . . . . . .
Description of Components / Functioning 3. . . . . . . . . . . . . . . . . . . .EP 11‐02, L‐design 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .EP 12‐01, V‐design 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .EP 11 N 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Material Flow 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Nozzle 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Shim Plates 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Special Aspect of the EP 12 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Suction Stem Control Module 7. . . . . . . . . . . . . . . . . . . . . . . . . . .Heating 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Filter Cartridge 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Filter (Option) 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ID Plate 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Options 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Special Features 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Unpacking 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Transport 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Storage 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Disposal 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installing 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhausting Material Vapors 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical Connection 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Laying Cable 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrically Connecting Applicator 10. . . . . . . . . . . . . . . . . . . . . . . .Connecting Solenoid Valves 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricated or Non‐lubricated Compressed Air 11. . . . . . . . . . . . . . . .Operating with Non‐lubricated Compressed Air 11. . . . . . . . . . . .Operating with Lubricated Compressed Air 11. . . . . . . . . . . . . . . .
Pneumatic Connections 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Connecting Continuous Air and Control Air 12. . . . . . . . . . . . . . . .
Connecting EP 12 with Pressure Accumulator 12. . . . . . . . . . .Connecting Heated Hose 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Second Open‐end Wrench 13. . . . . . . . . . . . . . . . . . . . . . . .Connecting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Disconnecting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of ContentsII
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Operation 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Important When Using Polyurethane Application Materials (PUR) 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Triggering Solenoid Valves 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Setting Temperature 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Setting Control Air Pressure 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Setting Material Pressure 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Positioning the Applicator 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coating Open‐pore Substrate 16. . . . . . . . . . . . . . . . . . . . . . . . . . .Coating Closed‐pore Substrate 17. . . . . . . . . . . . . . . . . . . . . . . . . .
Material Application 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sample Calculation 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings Record 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Relieving Pressure 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Regular Maintenance 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PUR Adhesives 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Visual Inspection for External Damage 22. . . . . . . . . . . . . . . . . . . .External Cleaning 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Changing Material 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Purging with Cleaning Agent 23. . . . . . . . . . . . . . . . . . . . . . . . . . . .Disassembling and Cleaning Nozzle 24. . . . . . . . . . . . . . . . . . . . . .Assembling Nozzle 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inserting New Shim Plate 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Control Module 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Removing Control Module 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installing Control Module 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cleaning Filter Cartridge 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Filter Cartridge 27. . . . . . . . . . . . . . . . . . . . . . . . . . . .Replace the Filter Screen 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installing Filter Cartridge 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nozzle Filter 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Changing Filter Cartridge 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Processing Materials 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maintenance Record 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Introduction 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .General Data 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air pressure 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Temperatures 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical Data 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensions and Weights 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applicators 1
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Safety InstructionsWARNING: Observe and follow all safety instructions, the general safetyinstructions included as a separate document, as well as the specific safetyinstructions in all other related documentation.
WARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.
Introduction
Intended UseHot melt applicators in the series EP 11 and EP 12 may be used only forsurface application of hot melt adhesives. The maximum material pressuremay not exceed 70 bar (7 MPa / 1015 psi).
Any other use is considered to be unintended. Nordson will not be liable forpersonal injury or property damage resulting from unintended use.
Intended use includes the observance of Nordson safety instructions.Nordson recommends obtaining detailed information on the materials to beused.
Unintended Use ‐ Examples ‐
The applicator may not be used under the following conditions:
� In defective condition
� When changes or modifications have been made by the customer
� In a potentially explosive atmosphere
� When unsuitable materials are used
� When values stated under Technical Data are not complied with.
The applicator may not be used to process the following materials:
� Explosive and flammable materials
� Erosive and corrosive materials
� Food products.
2 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Residual RisksIn the design of the unit, every measure was taken to protect personnel frompotential danger. However, some residual risks cannot be avoided.Personnel should be aware of the following:
� Risk of burns on the hot applicator: from hot material and when makingadjustments
� Material fumes can be hazardous. Avoid inhalation.
Note on Manual
� Because the unit is continuously being modified and improved, there areseveral models of the applicator. Thus illustrations in this manual maydeviate from the actual design
� The illustrations show only the essential components of the applicator.Refer to the technical drawing for additional components and details.
Definition of Term(s)
ApplicatorThe term application head is also used in Nordson literature.
MelterGeneral term for tank melters and bulk melters.
Control ModuleThe term module is also used in Nordson literature.
Series Overview
Explanation of Type Designation
The table shows the various models of the application heads in the seriesEP 11 and EP 12.
EP 11 / EP 11 N One suction stem control module per application zone
EP 12 V standard model Two suction stem control modules per application zone, V design
EP 12 Lspecial model Two suction stem control modules per application zone, L design
EP 12 RV special model Two suction stem control modules per application zone, V design,
includes recirculation control module
Applicators 3
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Description of Components / Functioning
EP 11‐02, L‐design
4
6
7
6
10
2
8
1
5
9
3
Fig. 1
1 Suction stem control module *
2 Solenoid valve
3 Solenoid valve plug
4 Cordset
5 Control air connection
6 Mounting bracket
7 Body
8 Nozzle
9 Hose connection
10 Filter cartridge
Note: There are separate manuals available for components marked with an asterisk (*).
4 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Description of Components / Functioning (contd.)
EP 12‐01, V‐design
3
7
1
10
1
2
5
4
95
8
5
6
6
Fig. 2
1 Filter cartridge
2 Solenoid valve
3 Solenoid valve plug
4 Control air connection
5 Suction stem control module *
6 Hose connection
7 Mounting bracket
8 Body
9 Nozzle
10 Cordset
Note: There are separate manuals available for components marked with an asterisk (*).
Applicators 5
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
EP 11 N
4
1
5
2
8
2
7
5
3
9
10
6
Fig. 3
1 Solenoid valve plug
2 Solenoid valve
3 Control air connection
4 Suction stem control module *
5 Mounting bracket
6 Body
7 Nozzle
8 Hose connection
9 Filter cartridge
10 Cordset
Note: There are separate manuals available for components marked with an asterisk (*).
6 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Description of Components / Functioning (contd.)
Material Flow
The melter pumps the material through a heated hose to the applicator. In theapplicator the material flows through the filter cartridge(s) and the materialchannels to the nozzle. Control modules open and close the material supplyto the nozzle. The nozzle applies the material to the substrate in a contactcoating process.
The application pattern is determined by grooves in the mouthpiece or by ashim plate. The shim plate is located between the nozzle mouthpiece and themouthpiece receptacle. The application pattern also depends on the speedat which the substrate moves, the quantity of material and the materialtemperature.
In addition, the quality of the application is influenced by the distance and theangle between the nozzle and the substrate.
Nozzle
The applicator nozzle touches the substrate, causing it to naturally wear. Itmay need to be refaced. Refer to section Maintenance.
Shim Plates
A specific application pattern is achieved by inserting shim plates of certainsizes and designs between the mouthpiece and the mouthpiece receptacle.
Fig. 4
Special Aspect of the EP 12
The V design of the EP 12 allows two control modules to be assigned foreach application zone. The material paths are the same length. The controlmodules perform alternating applications, meaning that extremely briefpauses between applications are possible.
Applicators 7
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Suction Stem Control Module
Suction stem control modules precisely open and close the material supplyto the nozzle by pneumatically raising or lowering the nozzle stems. Thematerial is suctioned back into the control module by the upward movement.This ensures that the material is cut off properly.
A compression spring ensures that the control module outlet is closed whenpressure drops, preventing material from being applied.
Heating
The applicator is heated with electrical heater cartridges. The temperature iscontinuously measured by temperature sensors and is controlled withelectronic temperature controllers.
The temperature controllers are not part of the applicator.
Filter Cartridge
The material flows from the inside of the filter cartridge to the outside. Thusdirt particles remain in the filter cartridge.
Filter (Option)
The applicator can be equipped with one or more filter(s) (10 , Fig. 1) insteadof (a) filter cartridge(s). This depends on the installation position of theapplicator and on the material quantity to be filtered.
ID Plate
Applicator type
Nordson order number
Serial number
Operating voltage V = Volt
Power consumption W = Watt
oper. temp. max. Maximum operating temperature
8 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Options
Option Brief Description
Recirculation control module (EP11)
Recirculation control modules cause the material to circulate inthe applicator, or they return the material to the applicator tank.
Body in L model (EP 12) The substrate can be passed along the applicator at a 90° angle.(Also refer to Fig.1.)
Electrical Pressure Sensor (EP 12) The electrical pressure sensor measures the material pressure inthe applicator.
Special Features
Special feature Brief Description
Recirculation control module(EP 12)
Recirculation control modules cause the material to circulate inthe applicator, or they return the material to the melter tank.
Applicator without filter cartridge(EP 11)
Some applications may require that the filter cartridge be omitted.The material must then be filtered in a preceding unit.
Nozzle with nozzle tips (EP 11) Nozzle tips allow material bead application. The nozzles arecleaned with a nozzle cleaning set (P/N 254648), a drill and/or abath.
Applicators 9
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
InstallationWARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.
UnpackingUnpack carefully. Then check for any damage caused during shipping.Reuse packaging materials or dispose of properly according to localregulations.
TransportThe applicator is a high precision, valuable part. Handle very carefully!Protect the nozzle from damage.
StorageDo not store outside! Protect from humidity and dust. Do not lay unit on thenozzle. Protect the nozzle from damage.
DisposalWhen your Nordson product has exhausted its purpose and/or is no longerneeded, dispose of it properly according to local regulations.
10 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
InstallingWhen installing the applicator, the following points should be observed inorder to avoid unnecessary effort later.
� Protect from humidity, vibrations, dust and drafts
� Ensure access to parts relevant for maintenance and operation
� Install/attach the applicator to/in the parent machine with the mountingbracket. To achieve optimum material application, during assemblyensure that the distance and, when appropriate, the angle between thenozzle and the substrate can be varied.
� When installing the unit, ensure that cables, air hoses, and heated hosescan not be bent, pinched, torn off or otherwise damaged.
Exhausting Material Vapors
Ensure that material vapors do not exceed the prescribed limits. Exhaustmaterial vapors when necessary. Provide sufficient ventilation of the locationwhere the unit is installed.
Electrical ConnectionWARNING: Risk of electrical shock. Failure to observe may result inpersonal injury, death, or equipment damage.
Laying Cable
WARNING: Ensure that cables do not touch rotating and/or hot unitcomponents. Do not pinch cables and check regularly for damage. Replacedamaged cables immediately!
Electrically Connecting Applicator
The unit is connected electrically by inserting the plugs into thecorresponding receptacles of the melter or a terminal box. Secure the voltageplug with the clamp if necessary.
Connecting Solenoid Valves
The solenoid valves on the control modules are controlled either by anexternal power supply, e.g. control unit, or through the valve control lines ofthe heated hose. Secure the voltage plug with the clamp if necessary.
NOTE: Observe the voltage stated on the ID plate of the solenoid valve.
Applicators 11
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Lubricated or Non‐lubricated Compressed Air
CAUTION: Control modules EP 10 D may be operated only with dry,controlled and non‐lubricated compressed air.
NOTE: The control module EP 10 can be operated with either lubricated ornon‐lubricated compressed air.
Operating with Non‐lubricated Compressed Air
When an applicator is connected to a compressed air system in which thecompressed air has previously been lubricated, simply ceasing to lubricatethe air is not sufficient. The oil remaining in the compressed air supply willreach the solenoid valves and the control modules and wash out the originallubricant/oil from these parts, substantially decreasing the service life of theunits.
NOTE: It must be ensured that the compressed air supply to the applicationheads has been converted to absolutely non‐lubricated operation.
NOTE: It must be ensured that no oil from a possibly defective compressormay be permitted to penetrate the compressed air supply.
NOTE: Nordson will assume no warranty/liability for damage resulting fromunpermitted, temporary lubrication.
Operating with Lubricated Compressed Air
The control module EP 10 can also be operated with lubricated compressedair.
NOTE: Once the air has been lubricated, it must always be lubricated; thelubricated compressed air will wash out the original lubricant on the solenoidvalves and the control modules.
Use only resin‐free, low‐viscosity silicon oil. Nordson recommends:
Oil P/N
Klüber Unisilkon TK 002/100 253 700
12 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Pneumatic Connections
Connecting Continuous Air and Control Air
1. Connect customer's air supply to the inlet of the air conditioning unit.
Maximum air pressure:
10 bar 1 MPa 145 psi
2. Connect suction stem control modules to the customer's air supply (or airconditioning unit).
3. Set control air pressure:
Approx. 5 to 6 bar Approx. 0.5 to 0.6MPa
Approx. 72.5 to 87 psi
NOTE: The exact pressure must be determined for each application.
Connecting EP 12 with Pressure Accumulator
Applicators EP 12 can be equipped with a pressure accumulator. Thepressure accumulator must be connected to the customer's air supply.
Refer to the separate manual Air Manifold Bar with Pressure Accumulator foradditional information.
NOTE: The exact pressure must be determined for each application.
1 2 3
Applicators 13
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Connecting Heated HoseWARNING: Hot! Risk of burns. Wear heat‐protective gloves.
Using Second Open‐end Wrench
Use a second open‐end wrench when connecting and disconnecting theheated hose. This prevents the unit's hose connection from turning.
Fig. 5
Connecting
If cold material can be found in the hose connection, these components (1, 2)must be heated until the material softens (approx. 80 �C, 176 �F).
1. First connect the hose (3) electrically to the unit.
2. Heat the system and hose to approx. 80 �C (176 �F).
3. Screw on heated hose.
Fig. 6
Disconnecting
WARNING: System and material pressurized. Relieve system pressurebefore disconnecting heated hoses. Failure to observe can result in seriousburns.
WARNING: Hot! Risk of burns. Wear safety goggles and heat‐protectivegloves.
1. Set the motor speed of the melter to 0 rpm; switch off motor(s).
2. Place a container under the nozzle(s) of the applicator / assemblyhandgun.
3. Activate the solenoid valve(s) electrically or manually; or pull the trigger ofthe assembly handgun. Repeat this procedure until no more materialflows out.
4. Properly dispose of material according to local regulations.
14 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
OperationWARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.
Important When Using Polyurethane ApplicationMaterials (PUR)
It is imperative that the following guidelines are followed when processingpolyurethane application materials (PUR):
� Wear respiratory protection when the maximum permissibleconcentration of hazardous substances is exceeded.
� Before prolonged standstill of the application system, purge with asuitable cleaning agent. Use only a cleaning agent recommended by thematerial manufacturer.
� Close open material connections airtight.
When the system is to cease operation for only a short time, it suffices to coatthe application slot generously with grease.
CAUTION: Use only special high‐temperature grease. Refer to page 33,Processing Materials! Any other grease may cause the PUR material tocross‐link.
Triggering Solenoid ValvesCAUTION: Trigger the solenoid valves only when the applicator is heated tooperating temperature! Seals in the application control module and theretrosuction control module can become damaged if the material is too cold.
Setting TemperatureNOTE: When setting the temperature, the temperature prescribed by thematerial manufacturer is decisive. The maximum operating temperature ofthe product described here may not be exceeded.
The applicator temperature required is set on the melter (maximum 200 °C /392 °F).
Nordson will grant no warranty and assume no liability for damage resultingfrom incorrect temperature settings.
Applicators 15
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Setting Control Air PressureThe control air pressure is set to suit each application on an air conditioningunit. The air conditioning unit with pressure control valve is not part of theapplicator.
NOTE: It is important to observe the instructions on lubricating or notlubricating the control air (page 11) and in the separate manuals for thecontrol modules!
Set control air pressure:
5 to 6 bar 0.5 to 0.6 MPa 72.5 to 87 psi
The exact pressure must be determined for each application.
NOTE: The maximum control air pressure may not be exceeded.
Nordson will assume no warranty or liability for damage resulting fromincorrect pressure settings.
Setting Material Pressure
The material pressure is generated by the melter pumps.
CAUTION: The maximum material pressure may not be exceeded:
70 bar 7 MPa 1�015 psi
16 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Positioning the Applicator
The optimum angle of incidence of the applicator is a factor of variouscustomer‐specific parameters and can not be determined preciselybeforehand.
Good application and material cutoff is achieved when the applicator ispositioned almost completely vertical to the substrate. The angle can beadjusted within a range of approx. 80° to 100°
If the angle of incidence of the applicator to the substrate is too great, a beadof material forms as soon as the material is cut off (Also refer to Fig. 7). Thissoon leads to irregular material application and a scaly application pattern.
Fig. 7
NOTE: The optimum position of the applicator depends on several factors ofthe customer's specific application. Thus trial and error is the only way todetermine the best position. The fundamental differences are:
� Application to open‐pore substrate (fleece)
� Application to closed‐pore substrate:
Coating Open‐pore Substrate
The applicator nozzle should be positioned between two rolls, as shown inFig. 8. The coating is applied to the tensed substrate.
The substrate should not be diverted from a straight path by more thanapprox. 1 mm when the applicator touches it.
90 90 90
Fig. 8
Applicators 17
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Coating Closed‐pore Substrate
The applicator nozzle should be positioned close to the coating roll, asshown in Fig. 9. However, coating is not performed against the roll butagainst the tensed substrate.
The substrate should not be diverted from a straight path by more thanapprox. 1 mm when the applicator touches it.
9090 90
Fig. 9
18 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Material Application
Sample Calculation
Nordson recommends following the sample calculation before starting up theapplicator and making a note of the application-specific values for applicationweight and width, substrate speed and pump output capacity. These valuescan be used to calculate the pump speed and material quantity. The resultsof the calculations are also entered in the table. This ensures that all valuescan be reproduced at any time.
NOTE: The material quantity for intermittent application is calculated thesame as for continuous material application.
Application weight (grammage) m = 20 g/m2
Application width of each material track b = 10 mm = 0.01 m
Substrate speed v = 500 m/min
Material quantity M = m � b � v = 20 g/m2 � 0.01 m � 500 m/min = 100.0 g/min
Output capacity of pump D = 2.4 g/revolution
Pump speed n = M � D = 100.0 g/min � 2.4 g/revolution � 42 rev/min
Customer‐specific values:
Application weight (grammage) m
Application width b
Substrate speed v
Material quantity M = m � b � v
Output capacity of pump D
Pump speed n = M � D
Applicators 19
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Settings Record
Production information:
Material: Manufacturer
Processing temperature
Viscosity
Cleaning agent: Manufacturer
Flash point
Basic settings Application weight
Application width
Substrate speed
Material quantity
Material pressure
Output capacity
Basic temperature settings Body
Heated hose
Motor/pump speeds:
Motor/pump 1) 2) 3) 4) 5) 6)
Notes:
Name Date
20 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
MaintenanceWARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.
NOTE: Maintenance is an important preventive measure to maintainoperating safety and to extend the service life of the unit. It should not beneglected under any circumstances.
Relieving PressureWARNING: System and material pressurized. Relieve system pressurebefore disconnecting heated hoses. Failure to observe can result in seriousburns.
WARNING: Hot! Risk of burns. Wear heat‐protective gloves.
1. Set motor speed of the unit feeding the material to 0 min‐1; switch offmotor(s).
2. Place a container under the nozzle(s) of the applicator.
3. Activate the solenoid valves electrically or manually. Repeat thisprocedure until no more material flows out.
4. Properly dispose of material according to local regulations.
Applicators 21
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Regular Maintenance
Unit part Activity Interval Refer to
Entire applicator Inspect for damage Daily Page 22
External Cleaning Daily Page 22
Purge with cleaning agent Daily when using PURadhesives
Page 24
Control modules Check for leakage Daily -
Nozzle Cleaning Regularly, or when theapplication patterndeteriorates
Page 24
Replace shim plate When damaged Page 25
Have it refaced When damaged
Cordset Inspect for damage Every time the applicator isserviced
-
Air hoses -
Control modules Check detection holes Daily -
Replace When damaged Page 26
Filter cartridge (option) Clean filter cartridge andreplace filter screen
Depending on degree ofmaterial pollution.
Recommendation: Every100 hours of operation
Page 27
Page 28
Nozzle Filter (Option) Page 31
Pressure sensor(option)
Check performance
Calibrate
Check the separating membrane for damage and forhardened or charred material
Every year; more often ifconditions of use require
Every time the pressuresensor is removed, moreoften if necessary
Separate manual
22 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
PUR Adhesives
CAUTION: Reduce temperature when production is to cease for longer than30 minutes.
Visual Inspection for External Damage
CAUTION: When damaged parts pose a risk to the operational safety of theapplicator and/or safety of personnel, switch off the applicator or applicationsystem and have the damaged parts replaced by qualified personnel. Useonly original Nordson spare parts.
External Cleaning
External cleaning prevents impurities created during production from causingthe unit to malfunction.
Always follow manufacturer's instructions when using cleaning agents!
1. Electrically heat the cold applicator until the material is liquid.
2. Thoroughly remove the warm material with a cleaning agent and/or a softcloth.
3. Remove dust, fluffs, etc. with a vacuum cleaner or a soft, lint‐free cloth.
CAUTION: Do not damage or remove warning labels. Damaged or removedwarning labels must be replaced by new ones.
Changing Material
NOTE: Before changing the type of material, determine whether the old andnew material may be mixed.
� May be mixed: Remaining old material can be flushed out using the newmaterial.
� May not be mixed: Thoroughly purge the unit with a cleaning agentrecommended by the material supplier.
NOTE: Properly dispose of the material and cleaning agent according tolocal regulations.
Applicators 23
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Purging with Cleaning Agent
CAUTION: Use only a cleaning agent recommended by the hot meltmaterial manufacturer. Observe the Material Safety Data Sheet for thecleaning agent.
NOTE: When PUR adhesive is used, it must be prevented from reacting tothe thermal load in the applicator. The applicator must be purged every daywhen work is completed. Rinse out cleaning agent just before beginningproduction again.
1. Maintain operating temperature.
2. Place a container under the nozzle.
3. Relieve pressure (Refer to page 20).
4. Detach the heated hose from the applicator (Refer to page 13�) to preventimpurities from the melter and hose from being forced into the applicatorduring purging.
5. Purge the melter and heated hose (Refer to separate manuals).
6. Attach the heated hose to the applicator again.
7. Purge the applicator until the material has been flushed out completely.
NOTE: When PUR adhesive is used, do not proceed until right beforeproduction is to begin again.
8. Purge applicator (and, when appropriate, melter and hose) with thematerial currently in use to flush out the cleaning agent.
NOTE: Properly dispose of cleaning agent according to local regulations.
ÁÁ
1 2
46
78
3
5
24 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Disassembling and Cleaning Nozzle
The application nozzle must be regularly disassembled (mouthpiece, shimplate and mouthpiece receptacle) and cleaned. Material residue affects thequality of the application. It must be removed.
NOTE: When using cleaning agents, observe the manufacturer'sinformation! Carefully read the Material Safety Data Sheet for the cleaningagent used.
NOTE: Nordson will assume no warranty or liability for damage resultingfrom incorrect cleaning.
1. Heat applicator until material is soft.
2. Release fixing screws (8) and detach nozzle from body.
3. Release screws (2) and, with the aid of the screws and the forcing thread(3), pry the mouthpiece (4) off of the mouthpiece receptacle (7).
NOTE: Alignment pins (6) determine the position of the mouthpiece inrelation to the mouthpiece receptacle.
4. Knock alignment pins out of the hole with a punch and hammer.
5. Use suitable tools (drill, reamer) to remove charred material from holesand channels.
6. Use a cleaning agent to dissolve material residue that could not beremoved mechanically.
NOTE: Properly dispose of cleaning agent, material residue and cutting oilaccording to local regulations.
CAUTION: Only use a cleaning agent recommended by the materialsupplier. Observe Manufacturer Safety Data Sheet (MSDS) for the cleaningagent.
Reface
Applicators 25
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Assembling Nozzle
1. Apply high-temperature grease (Refer to page 33 Processing Materials).
� To the O‐rings� To the screw threads� Under the screw heads.
2. Use pins to join mouthpiece receptacle (7), shim plate (5) andmouthpiece (4), then screw together. Do this by hammering in thealignment pins (6) until the tops of the pins are even with the top of themouthpiece.
3. Put Quadrings (1) back into place if necessary.
4. Screw application nozzle back onto the body with the fixing screws (8).
NOTE: Tighten fixing screws size M4, property class 70 in three steps, witha total of 2.5 Nm. Use a torque wrench.
NOTE: Contact Nordson for information on special models with differentscrews.
Inserting New Shim Plate
1. Disassemble the application nozzle. Refer to page 24.
2. Fit new shim plate between mouthpiece and mouthpiece receptacle. Theshim plate is held in place by two cylinder pins.
3. Screw nozzle halves together.
NOTE: The shim plate protrudes 1 to 2 mm out of the nozzle.
4. The shim plate must be ground until it is even with the mouthpiece andthe mouthpiece receptacle.
5. Assemble the nozzle. See instructions above.
Fig. 10
ÏÏÏÏÏÏÏÏÏÏÏ
26 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Changing Control ModuleWARNING: Hot! Risk of burns. Wear heat‐protective gloves.
CAUTION: If some but not all of the control modules on an applicator arereplaced, the applicator must continue to be operated with lubricatedcompressed air. Observe the instructions in the section Installation onlubricating or not lubricating compressed air.
Nordson recommends keeping a supply of control modules to preventproduction stoppage.
CAUTION: The control module is a high precision, valuable part. Handlevery carefully!
Removing Control Module
1. Disconnect air hoses.
2. Heat the applicator until the material is soft.
3. Release the four screws (M4) and extract the control modules from thewarm applicator.
Installing Control Module
NOTE: Required tool: Torque wrench.
1. Apply high-temperature grease (Refer to page 33, Processing Materials)
� To the O-rings,
� To the screw threads
� Under the screw heads.
2. Insert the new control module carefully, taking care not to tilt it.
NOTE: When the control module is slid into the body, the two O‐rings causesome resistance that must be overcome. When the part with the detectionholes is on the body, the control module has been slid in far enough.
3. Screw in the four screws (M4) by hand. Do not tighten!
4. Tighten the screws crosswise in three steps of 0.9 Nm each. Use atorque wrench.
Fig. 11
5. Ensure that the compressed air supply has been converted to absolutelynon‐lubricated operation.
6. Re‐connect air and electrical connection.
NOTE: Observe the voltage stated on the ID plate of the solenoid valve.
2
1
Applicators 27
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Cleaning Filter Cartridge
NOTE: Remove filter cartridge only when the applicator is hot and not underpressure. Install only in a hot applicator.
WARNING: Hot! Risk of burns. Wear safety goggles and heat‐protectivegloves.
WARNING: System and material pressurized. Relieve system of pressurebefore replacing a filter cartridge. Failure to observe can result in seriousburns.
Removing Filter Cartridge
1. Place a container under the filter bore.
NOTE: Use a second open‐end wrench when screwing in and out thepressure relief screw (1, Fig. 12). This prevents the filter cartridge (2, Fig. 12)from turning.
2. Screw pressure relief screw out of the filter cartridge until material flowsout.
3. Turn the filter cartridge all the way counterclockwise.
4. Simultaneously press the filter cartridge in and turn counterclockwiseagain (bayonet fastener): then extract it. Use an open‐end or ring wrench(size 17), if necessary.
Fig. 12
NOTE: If the filter cartridge is stuck in the filter bore, grasp the filter cartridgewith a pliers and extract.
5. Purge the filter bore by allowing the pump to run briefly with material. Thisrinses out particles of dirt that may still be in the filter bore.
6. Properly dispose of material according to local regulations.
28 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Replace the Filter Screen
WARNING: Hot! Risk of burns. Wear heat‐protective gloves.
1 2 3 4 5
Fig. 13
1 Pressure relief screw
2 O‐ring
3 Filter screw
4 O‐ring
5 Filter screen with spring
1. Heat the filter cartridge until material is liquid.
2. Turn the unit consisting of pressure relief screw, filter screen and springcounterclockwise out of the filter screw, then replace.
NOTE: Nordson recommends keeping a supply of replacement filtercartridges to avoid interruptions in production.
Installing Filter Cartridge
1. Heat applicator until material is liquid.
2. Apply high temperature grease to the O‐ring. Refer to page 33,Processing Materials.
3. Slide the filter cartridge into the filter bore.
NOTE: Air penetrates the filter bore when the filter cartridge is replaced. Theapplicator is deaerated with the aid of the pressure relief screw.
4. Unscrew the pressure relief screw somewhat.
5. Allow the pump to run briefly until material flows out. This also forces outthe air.
6. Turn in the pressure relief screw clockwise all the way when the materialflows out free of bubbles.
Applicators 29
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Nozzle Filter
Changing Filter Cartridge
NOTE: Remove filter cartridge only when the nozzle filter is hot and notunder pressure. Install only when nozzle filter is hot.
WARNING: Hot! Risk of burns. Wear heat‐protective gloves.
WARNING: System and material pressurized. Relieve system of pressurebefore replacing filter cartridge. Failure to observe can result in seriousburns.
Refer to page 20, Relieve pressure.
Removing Filter Cartridge
1. Place a container under the filter bore.
For filter cartridges with air relief valve go to step 3.
2. Insert screw into center tapped hole (Fig. 14).
Fig. 14
3. Unscrew the filter cartridge counterclockwise with an open‐end wrench orring wrench (Fig. 15).
CAUTION: As soon as the thread is disengaged, cease turning.Otherwise part of the filter cartridge may remain in the bore.
Fig. 15
4. Use suitable pliers to carefully extract filter cartridge (Fig. 16).
5. Purge the filter bore by allowing the pump to run briefly with material. Thisrinses out particles of dirt that may still be in the filter bore.
6. Properly dispose of material according to local regulations.
Fig. 16
30 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Installing Filter Cartridge
1. Heat the nozzle filter via the applicator or with a hot air fan until thematerial is liquid.
2. Apply high temperature grease to all threads and O‐rings. Refer topage 33, Processing Materials.
3. Slide the filter cartridge into the filter bore.
4. Screw filter cartridge in clockwise with an open‐end or ring wrench (donot overtighten).
5. Feed material by allowing the pump to run until the material comes out ofthe applicator free of bubbles.
6. Properly dispose of material according to local regulations.
Fig. 17
Applicators 31
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Disassembling and Cleaning Filter Cartridge
Disassemble the filter cartridge only when hot. If the filter cartridge is notdisassembled immediately after removal, it must be heated (e.g. with an airheater).
WARNING: Hot! Risk of burns. Wear heat‐protective gloves.
NOTE: Only use a cleaning agent recommended by the material supplier.Observe the Material Safety Data Sheet for the cleaning agent.
NOTE: Always replace the filter screen (4).
1. Disassemble the filter cartridge when hot.
2. Replace the filter screen.
3. Clean all other parts.
4. Check all O‐rings; replace if necessary.
5. Apply high temperature grease to all threads and O‐rings. Refer topage 33, Processing Materials for information on the high-temperaturegrease.
6. Properly dispose of cleaning agent according to local regulations.
1
2
3
4
53
1
23
4
6
2
8
4
33
7
Fig. 18
1 Center tapped hole
2 Filter screw
3 O‐ring
4 Filter screen
5 Screw plug
6 Filter sheath
7 Air relief valve
8 Nut
32 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Attaching/Removing Filter Casing
1. When the filter casing (4, Fig. 19) has been removed, the O‐ring (5, Fig. 19) must always be replaced.
2. To screw on, apply high temperature grease to all threads and O‐rings.Refer to page 33, Processing Materials for information on thehigh-temperature grease.
1
3
4
5
2
Fig. 19
1 Filter cartridge
2 Cylinder screw
3 Hose connection
4 Filter casing
5 O‐ring
Applicators 33
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Processing Materials
Designation Order number Use
High temperature grease Apply to O‐rings and threads
NOTE: The grease should not bemixed with other lubricants.Oily/greasy parts must be cleanedbefore application.
� Can 10 g P/N 394769
� Tube 250 g P/N 783959
� Cartridge 400 g P/N 402238
34 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Maintenance Record
Unit part Activity Date Name Date Name
Applicator External inspection andcleaning
Control module
Nozzle Cleaning
Replace nozzle
Replace shim plate
Filter cartridge Replace
Applicators 35
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
TroubleshootingWARNING: Allow only qualified personnel to perform the following tasks.Observe and follow the safety instructions in this document and all otherrelated documentation.
IntroductionTroubleshooting tables are intended as an orientation for qualified personnel.They cannot, however, replace targeted troubleshooting with the aid of wiringdiagrams and measuring instruments. They also do not include all possibleproblems, only those which most typically occur.
The following problems are not included in the troubleshooting tables:
� Faults in installation
� Faults in operation
� Defective cables
� Loose plug and screw connections.
In the column Corrective action, the remark that defective parts should bereplaced is generally not included.
36 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Problem Possible Cause Corrective Action Refer to
No material Melter tank is empty Fill Separate manualMelterMelter motor and/or pump is
not switched onSwitch on
Melter pump is not working Check Separate manual forpump or melter
Applicator has not yetreached operatingtemperature
Wait until temperature hasbeen reached; adjusttemperature setting ifnecessary
Separate manualTemperaturecontroller
Applicator cold or not warmenough
Refer to Applicator does notheat
- -
Control air not connected Connect Page 12
Nozzle clogged Clean nozzle Page 24
Nozzle stem is stuck Replace control module(s) Separate manual forcontrol module
Filter cartridge or nozzlefilter clogged
Clean Page 27
Page 31
Applicator doesnot heat
Temperature not set Adjust Page 14
Voltage plug not connected Connect Page 10
Fuses in melter defective Disconnect unit from linevoltage, check fuses andreplace if necessary
- -
Heater cartridge(s) inapplicator defective
Replace heater cartridge(s) - -
Applicator doesnot reach the settemperature
One or more heatercartridges defective
Replace - -
Ambient temperature toolow
Increase ambienttemperature
- -
Solenoid valvesdo not switch
Control unit not switched on Switch on Separate manualControl Unit
Valve connecting cable notplugged in or loose
Check that plug connectionsare tight
Page 10
Continued...
Applicators 37
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Problem Possible Cause Corrective Action Refer to
Thickened material at beginning ofapplication pattern
Note: Material thickening can not be prevented; it can only be minimized.
Stem stroke too high Check stem stroke betweenpiston and socket block; itmust be at least 0.3 + 0.1
mm
Separate manualControl Module
Recirculation pressure toohigh
Check application pressureand adjust recirculationpressure
- -
Pause time too long Application must beperformed with recirculation
- -
Applicationpattern not exact
Temperature not setprecisely on melter
Correct setting Separate manualMelter
Temperature of applicatornot set precisely
Page 14
Material quantity/pressurenot set precisely
Page 15
Distance betweenapplication nozzle andsubstrate incorrect
Correct distance Page 16
Control unit for solenoidvalves not programmedcorrectly
Correct programming Separate manualControl Unit
Nozzle polluted on outside Clean Page 22
Nozzle polluted on inside Disassemble and clean Page 24
Nozzle damaged Replace nozzle Page 24
Application quantity andsubstrate processing speednot attuned to one another
Check settings; adjust ifnecessary
- -
Material unsuitable Ask manufacturer Data sheet of materialmanufacturer
Pause time toolong
Muffler in control moduleclogged
Replace muffler - -
The open time* istoo long
Application temperature toohigh
Set temperature lower Separate manualTemperaturecontroller
Material unsuitable Ask manufacturer Data sheet frommaterial manufacturer
The open time* istoo short
Application temperature toolow
Set temperature higher Separate manualTemperaturecontroller
Material unsuitable Ask manufacturer Data sheet frommaterial manufacturer
NOTE: * The open time is the time from when the material leaves the nozzleuntil it hardens on the substrate.
38 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12
Technical Data
General Data
Available control modules EP 10 EP 10 D
Type of heating Electrical resistance heating elements
Possible temperature sensors FeKo thermalelement
Pt 100 Ni 120
Max. closing pressure withoutcompressed air
30 bar 3 MPa 435 psi
Max. closing pressure withcompressed air
70 bar 7 MPa 1�015 psi
Max. locking pressure withoutcompressed air
100 bar 10 MPa 1�450 psi
Max. locking pressure withcompressed air
100 bar 10 MPa 1�450 psi
Max. processable viscosity 10�000 mPas 10�000 cP
Max. application width 400 mm
Max. application width per controlmodule
40 mm
Min. control module spacing 30 mm
Air pressure
Control air 5 to 6 bar 0.5 to 0.6 MPa 72.5 to 87 psi
Temperatures
Max. ambient temperature 40 °C 104 °F
Max. operating temperature 200 °C 392 °F
Applicators 39
P/N 317091G� 2011 Nordson Corporation EP11 / EP 12
Electrical DataWARNING: Operate the applicator only at the operating voltage shown onthe ID plate.
Operating voltage 230 VDC
Operating voltage frequency 50/60 Hz
FeKo, Pt 100 Ni 120
Power consumption Pmax 1200 W 600 W
Degree of protection IP 30
Voltage for solenoid valve 24 VDC 230 VDC
Dimensions and Weights
Dimensions (L x W x H) Refer to technical drawing
Weight See consignment note
40 Applicators
P/N 317091G � 2011 Nordson CorporationEP11 / EP 12