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Applicators

35

P/N 317091G

E

2011 Nordson Corporation

EP11 / EP 12

Troubleshooting

WARNING:

Allow only qualified personnel to perform the following tasks.

Observe and follow the safety instructions in this document and all other
related documentation.

Introduction

Troubleshooting tables are intended as an orientation for qualified personnel.
They cannot, however, replace targeted troubleshooting with the aid of wiring
diagrams and measuring instruments. They also do not include all possible
problems, only those which most typically occur.

The following problems are not included in the troubleshooting tables:

S

Faults in installation

S

Faults in operation

S

Defective cables

S

Loose plug and screw connections.

In the column

Corrective action

, the remark that defective parts should be

replaced is generally not included.

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Содержание EP 11

Страница 1: ...NORDSON ENGINEERING GMBH D LÜNEBURG D GERMANY Hot Melt Applicators EP 11 EP 11 N EP 12 V EP 12 L EP 12 RV Manual P N 317091G English Issued 03 11 ...

Страница 2: ...r Plus Spectrum Speed Coat Spraymelt Spray Squirt Super Squirt SureBead Sure Clean 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 are registered trademarks of Nordson Corporation Accubar Advanced Plasma Sy...

Страница 3: ...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 lubr...

Страница 4: ...intenance 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 ...

Страница 5: ...ial pressure may not exceed 70 bar 7 MPa 1015 psi Any other use is considered to be unintended Nordson will not be liable for personal 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 be used Unintended Use Examples The applicator may not be used under th...

Страница 6: ... essential components of the applicator Refer to the technical drawing for additional components and details Definition of Term s Applicator The term application head is also used in Nordson literature Melter General term for tank melters and bulk melters Control Module The term module is also used in Nordson literature Series Overview Explanation of Type Designation The table shows the various mo...

Страница 7: ...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 ...

Страница 8: ...EP 12 01 V design 3 7 1 10 1 2 5 4 9 5 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 ...

Страница 9: ... 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 ...

Страница 10: ...on pattern also depends on the speed at which the substrate moves the quantity of material and the material temperature In addition the quality of the application is influenced by the distance and the angle between the nozzle and the substrate Nozzle The applicator nozzle touches the substrate causing it to naturally wear It may need to be refaced Refer to section Maintenance Shim Plates A specifi...

Страница 11: ...with electrical heater cartridges The temperature is continuously measured by temperature sensors and is controlled with electronic 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 Thus dirt particles remain in the filter cartridge Filter Option The applicator can be equippe...

Страница 12: ...ectrical pressure sensor measures the material pressure in the applicator Special Features Special feature Brief Description Recirculation control module EP 12 Recirculation control modules cause the material to circulate in the 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 ...

Страница 13: ...ny damage caused during shipping Reuse packaging materials or dispose of properly according to local regulations Transport The applicator is a high precision valuable part Handle very carefully Protect the nozzle from damage Storage Do not store outside Protect from humidity and dust Do not lay unit on the nozzle Protect the nozzle from damage Disposal When your Nordson product has exhausted its p...

Страница 14: ...cribed limits Exhaust material vapors when necessary Provide sufficient ventilation of the location where the unit is installed Electrical Connection WARNING Risk of electrical shock Failure to observe may result in personal injury death or equipment damage Laying Cable WARNING Ensure that cables do not touch rotating and or hot unit components Do not pinch cables and check regularly for damage Re...

Страница 15: ...ubricant oil from these parts substantially decreasing the service life of the units NOTE It must be ensured that the compressed air supply to the application heads has been converted to absolutely non lubricated operation NOTE It must be ensured that no oil from a possibly defective compressor may be permitted to penetrate the compressed air supply NOTE Nordson will assume no warranty liability f...

Страница 16: ...r air conditioning unit 3 Set control air pressure Approx 5 to 6 bar Approx 0 5 to 0 6 MPa 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 The pressure accumulator must be connected to the customer s air supply Refer to the separate manual Air Manifold Bar ...

Страница 17: ...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 pressure before disconnecting heated hoses Failure to observe can result in serious burns WARNING Hot Risk of burns Wear safety goggles and heat protective gloves 1 Set the motor speed of the melter to 0 rpm switch off motor s ...

Страница 18: ... airtight When the system is to cease operation for only a short time it suffices to coat the 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 to cross link Triggering Solenoid Valves CAUTION Trigger the solenoid valves only when the applicator is heated to operating temperatur...

Страница 19: ...t lubricating the control air page 11 and in the separate manuals for the control 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 from incorrect pressure settings Setting Material Pressure Th...

Страница 20: ...orms as soon as the material is cut off Also refer to Fig 7 This soon leads to irregular material application and a scaly application pattern Fig 7 NOTE The optimum position of the applicator depends on several factors of the customer s specific application Thus trial and error is the only way to determine the best position The fundamental differences are S Application to open pore substrate fleec...

Страница 21: ...he applicator nozzle should be positioned close to the coating roll as shown in Fig 9 However coating is not performed against the roll but against the tensed substrate The substrate should not be diverted from a straight path by more than approx 1 mm when the applicator touches it 90 90 90 Fig 9 ...

Страница 22: ...ed in the table This ensures that all values can be reproduced at any time NOTE The material quantity for intermittent application is calculated the same 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 pum...

Страница 23: ...ial 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 ...

Страница 24: ...ould not be neglected under any circumstances Relieving Pressure WARNING System and material pressurized Relieve system pressure before disconnecting heated hoses Failure to observe can result in serious burns WARNING Hot Risk of burns Wear heat protective gloves 1 Set motor speed of the unit feeding the material to 0 min 1 switch off motor s 2 Place a container under the nozzle s of the applicato...

Страница 25: ...t refaced When damaged Cordset Inspect for damage Every time the applicator is serviced Air hoses Control modules Check detection holes Daily Replace When damaged Page 26 Filter cartridge option Clean filter cartridge and replace filter screen Depending on degree of material pollution Recommendation Every 100 hours of operation Page 27 Page 28 Nozzle Filter Option Page 31 Pressure sensor option Ch...

Страница 26: ...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 soft cloth 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 removed warning labels must be replaced by new ones Changi...

Страница 27: ... 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 prevent impurities from the melter and hose from being forced into the applicator during 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 flush...

Страница 28: ...l 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 in relation to the mouthpiece receptacle 4 Knock alignment pins out of the hole with a punch and hammer 5 Use suitable tools drill reamer to r...

Страница 29: ...pplication nozzle back onto the body with the fixing screws 8 NOTE Tighten fixing screws size M4 property class 70 in three steps with a total of 2 5 Nm Use a torque wrench NOTE Contact Nordson for information on special models with different screws Inserting New Shim Plate 1 Disassemble the application nozzle Refer to page 24 2 Fit new shim plate between mouthpiece and mouthpiece receptacle The s...

Страница 30: ... four screws M4 and extract the control modules from the warm applicator Installing Control Module NOTE Required tool Torque wrench 1 Apply high temperature grease Refer to page 33 Processing Materials S To the O rings S To the screw threads S 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 ring...

Страница 31: ...n screwing in and out the pressure 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 flows out 3 Turn the filter cartridge all the way counterclockwise 4 Simultaneously press the filter cartridge in and turn counterclockwise again bayonet fastener then extract it Use an open end or ring wrench siz...

Страница 32: ...g a supply of replacement filter cartridges 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 The applicator is deaerated with the aid...

Страница 33: ...ing 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 or ring 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 ...

Страница 34: ...h temperature grease to all threads and O rings Refer to page 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 do not overtighten 5 Feed material by allowing the pump to run until the material comes out of the applicator free of bubbles 6 Properly dispose of material according to local regulations Fig 17...

Страница 35: ...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 to page 33 Processing Materials for information on the high temperature grease 6 Properly dispose of cle...

Страница 36: ...g 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 the high temperature grease 1 3 4 5 2 Fig 19 1 Filter cartridge 2 Cylinder screw 3 Hose connection 4 Filter casing 5 O ring ...

Страница 37: ...Materials Designation Order number Use High temperature grease Apply to O rings and threads NOTE The grease should not be mixed with other lubricants Oily greasy parts must be cleaned before application S Can 10 g P N 394769 S Tube 250 g P N 783959 S Cartridge 400 g P N 402238 ...

Страница 38: ...E 2011 Nordson Corporation EP11 EP 12 Maintenance Record Unit part Activity Date Name Date Name Applicator External inspection and cleaning Control module Nozzle Cleaning Replace nozzle Replace shim plate Filter cartridge Replace ...

Страница 39: ...ntation for qualified personnel They cannot however replace targeted troubleshooting with the aid of wiring diagrams and measuring instruments They also do not include all possible problems only those which most typically occur The following problems are not included in the troubleshooting tables S Faults in installation S Faults in operation S Defective cables S Loose plug and screw connections I...

Страница 40: ...gged Clean nozzle Page 24 Nozzle stem is stuck Replace control module s Separate manual for control module Filter cartridge or nozzle filter clogged Clean Page 27 Page 31 Applicator does not heat Temperature not set Adjust Page 14 Voltage plug not connected Connect Page 10 Fuses in melter defective Disconnect unit from line voltage check fuses and replace if necessary Heater cartridge s in applica...

Страница 41: ...ect distance Page 16 Control unit for solenoid valves not programmed correctly Correct programming Separate manual Control 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 and substrate processing speed not attuned to one another Check settings adjust if necessary Material unsuitable Ask...

Страница 42: ...5 psi Max closing pressure with compressed air 70 bar 7 MPa 1 015 psi Max locking pressure without compressed air 100 bar 10 MPa 1 450 psi Max locking pressure with compressed 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 control module 40 mm Min control module spacing 30 mm Air pressure Control air 5 to 6 bar 0 ...

Страница 43: ...operating voltage shown on the 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 ...

Страница 44: ...40 Applicators P N 317091G E 2011 Nordson Corporation EP11 EP 12 ...

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