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HD-70 Hot Melt Sensor

Customer Product ManualPart 1091995A

Issued 10/08

NORDSON CORPORATION • DULUTH, GEORGIA • USAwww.nordson.com

This document contains important safety informationBe sure to read and follow all safety information in thisdocument and any other related documentation.

Part 1091995A � 2008 Nordson CorporationAll rights reserved

Nordson Corporation welcomes requests for information, comments, and inquiries about its products. General informationabout Nordson can be found on the Internet using the following address: http://www.nordson.com.

Address all correspondence to:

Nordson CorporationAttn: Customer Service11475 Lakefield Drive

Duluth, GA 30097

Notice

This is a Nordson Corporation publication which is protected by copyright. Original copyright date 2008.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.

Trademarks

AccuJet, AeroCharge, Apogee, AquaGuard, Asymtek, Automove, Baitgun, Blue Box, Bowtie, CanWorks, Century, CF, Clean Coat, CleanSleeve,CleanSpray, ColorMax, Color-on-Demand, Control Coat, Coolwave, Cross-Cut, Dispensejet, DispenseMate, DuraBlue, DuraDrum, Durafiber, DuraPail,

Dura-Screen, Durasystem, Easy Coat, Easymove Plus, Ecodry, Econo-Coat, e.dot, EFD, ESP, e stylized, ETI, Excel 2000, Fillmaster, FlexiCoat,Flex-O-Coat, Flow Sentry, Fluidmove, FoamMelt, FoamMix, HDLV, Heli-flow, Horizon, Hot Shot, iControl, iDry, iFlow, Isocoil, Isocore, Iso-Flo, iTRAX, Kinetix,LEAN CELL, Little Squirt, LogiComm, Magnastatic, March, Maverick, MEG, Meltex, Microcoat, Micromark, MicroSet, Millennium, Mini Squirt, Mountaingate,MultiScan, Nordson, OptiMix, Package of Values, Pattern View, PermaFlo, Plasmod, Porous Coat, PowderGrid, Powderware, PRIMARC, Printplus, Prism,

ProBlue, Prodigy, Pro-Flo, ProLink, Pro-Meter, Pro-Stream, RBX, Rhino, Saturn, Scoreguard, Seal Sentry, Select Charge, Select Coat, Select Cure,Slautterback, Smart-Coat, Solder Plus, Spectrum, Speed-Coat, SureBead, Sure Clean, Sure Coat, Sure-Max, Tracking Plus, TRAK, Trends, Tribomatic,

TrueBlue, Ultra, Ultrasaver, UpTime, u−TAH, Vantage, VersaBlue, Versa-Coat, Versa-Screen, Versa-Spray, Watermark, and When you expect more. are registered trademarks of Nordson Corporation.

Accubar, Advanced Plasma Systems, AeroDeck, AeroWash, AltaBlue, AltaSlot, Alta Spray, AquaCure, ATS, Auto-Flo, AutoScan, Axiom, Best Choice, Blue Series, Bravura, Champion, Check Mate, ClassicBlue, Classic IX, Controlled Fiberization, Control Weave, ContourCoat, CPX, cScan+, Cyclo-Kinetic,

DispensLink, DropCure, Dry Cure, DuraBraid, DuraCoat, DuraPUR, Easy Clean, EasyOn, EasyPW, Eclipse, e.dot+, Emerald, Encore, E-Nordson,Equi=Bead, FillEasy, Fill Sentry, Fluxplus, Get Green With Blue, GreenUV, G-Net, G-Site, iON, Iso-Flex, iTrend, Lacquer Cure, Maxima, Mesa, MicroFin,MicroMax, Mikros, MiniBlue, MiniEdge, Minimeter, MonoCure, Multifil, Myritex, Nano, OptiStroke, Partnership+Plus, PatternJet, PatternPro, PCI, PicoDot,

Pinnacle, Powder Pilot, Powder Port, Powercure, Precisecoat, Process Sentry, Pulse Spray, Quad Cure, Ready Coat, RediCoat, Royal Blue, Select Series,Sensomatic, Shaftshield, SheetAire, Signature, Smart, SolidBlue, Spectral, Spectronic, SpeedKing, Spray Works, Summit, SureFoam, Sure Mix, SureSeal,

Sure Wrap, Swirl Coat, TinyCure, Trade Plus, ThruWave, TrueCoat, Ultra FoamMix, UltraMax, Ultrasmart, Universal, ValueMate, VersaDrum, VersaPail,Vista, Web Cure, and 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.

Santoprene is a registered trademark of Advanced Elastomer Systems, L.P.

Table of Contents i

Part 1091995A� 2008 Nordson Corporation

Table of Contents

Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Alert Symbols 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Responsibilities of the Equipment Owner 2. . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instructions, Requirements, and Standards 2. . . . . . . . . . . . . . . . . . . . . . User Qualifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applicable Industry Safety Practices 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Use of the Equipment 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instructions and Safety Messages 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Practices 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Practices 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance and Repair Practices 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Safety Information 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Shutdown 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Safety Warnings and Cautions 7. . . . . . . . . . . . . . . . . . . . . . . . . Other Safety Precautions 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . First Aid 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Description 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Features 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unpack the HD-70 Sensor 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ship-with Kit 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mounting Guidelines 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HD-70 Sensor Dimensions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optimizing Sensor Reading 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sensing Range 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Installation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sensor Connection 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connect the Sensor to the LogiComm Control Module 18. . . . . . . . . . . . System Startup 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contentsii

Part 1091995A � 2008 Nordson Corporation

Setup 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Status Indicators 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Programming the HD-70 Sensor 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Two-Point Teach Procedure 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix A: Sensor Specific Screens A-1. . . . . . . . . . . . . . . . . . . . . . . . . . Template Verification Setting A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accumulated Bead Length Setting A-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Gap Setting A-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

HD-70 Hot Melt Sensor 1


HD-70 Hot Melt Sensor

Safety Read this section before using the equipment. This section containsrecommendations and practices applicable to the safe installation,operation, and maintenance (hereafter referred to as “use”) of the productdescribed in this document (hereafter referred to as “equipment”). Additionalsafety information, in the form of task-specific safety alert messages,appears as appropriate throughout this document.

WARNING! Failure to follow the safety messages, recommendations, andhazard avoidance procedures provided in this document can result inpersonal injury, including death, or damage to equipment or property.

Safety Alert Symbols The following safety alert symbol and signal words are used throughout thisdocument to alert the reader to personal safety hazards or to identifyconditions that may result in damage to equipment or property. Comply withall safety information that follows the signal word.

WARNING! Indicates a potentially hazardous situation that, if not avoided,can result in serious personal injury, including death.

CAUTION: ndicates a potentially hazardous situation that, if not avoided,can result in minor or moderate personal injury.

CAUTION: (Used without the safety alert symbol) Indicates a potentiallyhazardous situation that, if not avoided, can result in damage to equipmentor property.

HD-70 Hot Melt Sensor2


Responsibilities of the Equipment Owner Equipment owners are responsible for managing safety information,ensuring that all instructions and regulatory requirements for use of theequipment are met, and for qualifying all potential users.

Safety Information � Research and evaluate safety information from all applicable sources,

including the owner-specific safety policy, best industry practices,governing regulations, material manufacturer’s product information, andthis document.

� Make safety information available to equipment users in accordancewith governing regulations. Contact the authority having jurisdiction forinformation.

� Maintain safety information, including the safety labels affixed to theequipment, in readable condition.

Instructions, Requirements, and Standards � Ensure that the equipment is used in accordance with the information

provided in this document, governing codes and regulations, and bestindustry practices.

� If applicable, receive approval from your facility’s engineering or safetydepartment, or other similar function within your organization, beforeinstalling or operating the equipment for the first time.

� Provide appropriate emergency and first aid equipment.

� Conduct safety inspections to ensure required practices are beingfollowed.

� Re-evaluate safety practices and procedures whenever changes aremade to the process or equipment.



User Qualifications Equipment owners are responsible for ensuring that users:

� receive safety training appropriate to their job function as directed bygoverning regulations and best industry practices

� are familiar with the equipment owner’s safety and accidentprevention policies and procedures

� receive, equipment- and task-specific training from another qualifiedindividual

NOTE: Nordson can provide equipment-specific installation,operation, and maintenance training. Contact your Nordsonrepresentative for information

� possess industry- and trade-specific skills and a level of experienceappropriate to their job function

� are physically capable of performing their job function and are notunder the influence of any substance that degrades their mentalcapacity or physical capabilities

Applicable Industry Safety Practices The following safety practices apply to the use of the equipment in themanner described in this document. The information provided here is notmeant to include all possible safety practices, but represents the best safetypractices for equipment of similar hazard potential used in similar industries.

Intended Use of the Equipment � Use the equipment only for the purposes described and within the limits

specified in this document.

� Do not modify the equipment.

� Do not use incompatible materials or unapproved auxiliary devices.Contact your Nordson representative if you have any questions onmaterial compatibility or the use of non-standard auxiliary devices.



Instructions and Safety Messages � Read and follow the instructions provided in this document and other

referenced documents.

� Familiarize yourself with the location and meaning of the safety warninglabels and tags affixed to the equipment. Refer to Safety Labels andTags at the end of this section.

� If you are unsure of how to use the equipment, contact your Nordsonrepresentative for assistance.

Installation Practices � Install the equipment in accordance with the instructions provided in this

document and in the documentation provided with auxiliary devices.

� Ensure that the equipment is rated for the environment in which it will beused and that the processing characteristics of the material will notcreate a hazardous environment. Refer to the Material Safety DataSheet (MSDS) for the material.

� If the required installation configuration does not match the installationinstructions, contact your Nordson representative for assistance.

� Position the equipment for safe operation. Observe the requirements forclearance between the equipment and other objects.

� Install lockable power disconnects to isolate the equipment and allindependently powered auxiliary devices from their power sources.

� Properly ground all equipment. Contact your local building codeenforcement agency for specific requirements.

� Ensure that fuses of the correct type and rating are installed in fusedequipment.

� Contact the authority having jurisdiction to determine the requirement forinstallation permits or inspections.

Operating Practices � Familiarize yourself with the location and operation of all safety devices

and indicators.

� Confirm that the equipment, including all safety devices (guards,interlocks, etc.), is in good working order and that the requiredenvironmental conditions exist.

� Use the personal protective equipment (PPE) specified for each task.Refer to Equipment Safety Information or the material manufacturer’sinstructions and MSDS for PPE requirements.

� Do not use equipment that is malfunctioning or shows signs of apotential malfunction.



Maintenance and Repair Practices � Perform scheduled maintenance activities at the intervals described in

this document.

� Relieve system hydraulic and pneumatic pressure before servicing theequipment.

� De-energize the equipment and all auxiliary devices before servicing theequipment.

� Use only new factory-authorized refurbished or replacement parts.

� Read and comply with the manufacturer’s instructions and the MSDSsupplied with equipment cleaning compounds.

NOTE: MSDSs for cleaning compounds that are sold by Nordson areavailable at www.nordson.com or by calling your Nordsonrepresentative.

� Confirm the correct operation of all safety devices before placing theequipment back into operation.

� Dispose of waste cleaning compounds and residual process materialsaccording to governing regulations. Refer to the applicable MSDS orcontact the authority having jurisdiction for information.

� Keep equipment safety warning labels clean. Replace worn or damagedlabels.

Equipment Safety Information This equipment safety information is applicable to the following types ofNordson equipment:

� hot melt and cold adhesive application equipment and all relatedaccessories

� pattern controllers, timers, detection and verification systems, and allother optional process control devices



Equipment Shutdown To safely complete many of the procedures described in this document, theequipment must first be shut down. The level of shut down required variesby the type of equipment in use and the procedure being completed. If required, shut down instructions are specified at the start of theprocedure. The levels of shut down are:

Relieving System Hydraulic Pressure

Completely relieve system hydraulic pressure before breaking any hydraulicconnection or seal. Refer to the melter-specific product manual forinstructions on relieving system hydraulic pressure.

De-energizing the System

Isolate the system (melter, hoses, guns, and optional devices) from allpower sources before accessing any unprotected high-voltage wiring orconnection point.

1. Turn off the equipment and all auxiliary devices connected to theequipment (system).

2. To prevent the equipment from being accidentally energized, lock andtag the disconnect switch(es) or circuit breaker(s) that provide inputelectrical power to the equipment and optional devices.

NOTE: Government regulations and industry standards dictate specificrequirements for the isolation of hazardous energy sources. Refer to theappropriate regulation or standard.

Disabling the Guns

All electrical or mechanical devices that provide an activation signal to theguns, gun solenoid valve(s), or the melter pump must be disabled beforework can be performed on or around a gun that is connected to apressurized system.

1. Turn off or disconnect the gun triggering device (pattern controller, timer,PLC, etc.).

2. Disconnect the input signal wiring to the gun solenoid valve(s).

3. Reduce the air pressure to the gun solenoid valve(s) to zero; thenrelieve the residual air pressure between the regulator and the gun.



General Safety Warnings and Cautions Table 1 contains the general safety warnings and cautions that apply toNordson hot melt and cold adhesive equipment. Review the table andcarefully read all of the warnings or cautions that apply to the type ofequipment described in this manual.

Equipment types are designated in Table 1 as follows:

HM = Hot melt (melters, hoses, guns, etc.)

PC = Process control

CA = Cold adhesive (dispensing pumps, pressurized container, andguns)

Table 1 General Safety Warnings and Cautions

EquipmentType Warning or Caution

HM

WARNING! Hazardous vapors! Before processing any polyurethanereactive (PUR) hot melt or solvent-based material through acompatible Nordson melter, read and comply with the material’sMSDS. Ensure that the material’s processing temperature andflashpoints will not be exceeded and that all requirements for safehandling, ventilation, first aid, and personal protective equipment aremet. Failure to comply with MSDS requirements can cause personalinjury, including death.

HM

WARNING! Reactive material! Never clean any aluminum componentor flush Nordson equipment with halogenated hydrocarbon fluids.Nordson melters and guns contain aluminum components that mayreact violently with halogenated hydrocarbons. The use ofhalogenated hydrocarbon compounds in Nordson equipment cancause personal injury, including death.

HM, CAWARNING! System pressurized! Relieve system hydraulic pressurebefore breaking any hydraulic connection or seal. Failure to relievethe system hydraulic pressure can result in the uncontrolled release ofhot melt or cold adhesive, causing personal injury.

Continued...



General Safety Warnings and Cautions (contd)

Table 1 General Safety Warnings and Cautions (contd)

EquipmentType Warning or Caution

HMWARNING! Molten material! Wear eye or face protection, clothing thatprotects exposed skin, and heat-protective gloves when servicingequipment that contains molten hot melt. Even when solidified, hotmelt can still cause burns. Failure to wear appropriate personalprotective equipment can result in personal injury.

HM, PC

WARNING! Equipment starts automatically! Remote triggeringdevices are used to control automatic hot melt guns. Before workingon or near an operating gun, disable the gun’s triggering device andremove the air supply to the gun’s solenoid valve(s). Failure to disablethe gun’s triggering device and remove the supply of air to thesolenoid valve(s) can result in personal injury.

HM, CA, PC

WARNING! Risk of electrocution! Even when switched off andelectrically isolated at the disconnect switch or circuit breaker, theequipment may still be connected to energized auxiliary devices.De-energize and electrically isolate all auxiliary devices beforeservicing the equipment. Failure to properly isolate electrical power toauxiliary equipment before servicing the equipment can result inpersonal injury, including death.

HM, CA, PC

WARNING! Risk of fire or explosion! Nordson adhesive equipment isnot rated for use in explosive environments and should not be usedwith solvent-based adhesives that can create an explosiveatmosphere when processed. Refer to the MSDS for the adhesive todetermine its processing characteristics and limitations. The use ofincompatible solvent-based adhesives or the improper processing ofsolvent-based adhesives can result in personal injury, including death.

HM, CA, PCWARNING! Allow only personnel with appropriate training andexperience to operate or service the equipment. The use of untrainedor inexperienced personnel to operate or service the equipment canresult in injury, including death, to themselves and others and candamage to the equipment.



Warning or CautionEquipment

Type

HMCAUTION! Hot surfaces! Avoid contact with the hot metal surfaces ofguns, hoses, and certain components of the melter. If contact can notbe avoided, wear heat-protective gloves and clothing when workingaround heated equipment. Failure to avoid contact with hot metalsurfaces can result in personal injury.

HM

CAUTION! Some Nordson melters are specifically designed toprocess polyurethane reactive (PUR) hot melt. Attempting to processPUR in equipment not specifically designed for this purpose candamage the equipment and cause premature reaction of the hot melt.If you are unsure of the equipment’s ability to process PUR, contactyour Nordson representative for assistance.

HM, CA

CAUTION! Before using any cleaning or flushing compound on or inthe equipment, read and comply with the manufacturer’s instructionsand the MSDS supplied with the compound. Some cleaningcompounds can react unpredictably with hot melt or cold adhesive,resulting in damage to the equipment.

HM

CAUTION! Nordson hot melt equipment is factory tested withNordson Type R fluid that contains polyester adipate plasticizer.Certain hot melt materials can react with Type R fluid and form a solidgum that can clog the equipment. Before using the equipment,confirm that the hot melt is compatible with Type R fluid.



Other Safety Precautions � Do not use an open flame to heat hot melt system components.

� Check high pressure hoses daily for signs of excessive wear, damage,or leaks.

� Never point a dispensing handgun at yourself or others.

� Suspend dispensing handguns by their proper suspension point.

First AidIf molten hot melt comes in contact with your skin:

1. Do NOT attempt to remove the molten hot melt from your skin.

2. Immediately soak the affected area in clean, cold water until the hot melthas cooled.

3. Do NOT attempt to remove the solidified hot melt from your skin.

4. In case of severe burns, treat for shock.

5. Seek expert medical attention immediately. Give the MSDS for the hotmelt to the medical personnel providing treatment.



Overview The HD-70 hot melt sensor is a passive, non-contacting, temperature-baseddevice. It is used to detect object(s) that are either hotter or colder than theambient condition, and then activate an output. The HD-70 sensor detectsthe infrared light energy emitted by hot melt adhesive. The sensor uses athermopile detector, made up of multiple infrared-sensitive elements(thermocouples) to detect this infrared energy within its field of view.

1

2

3

5

6

4

Figure 1 HD-70 sensor components

1. Sensor lens2. Output indicator (OUT) LED3. TEACH button

4. Sensor connector5. Power/Teach (PWR) LED6. M-18 threaded barrel

Product Description The HD-70 sensor is ideally suited for production applications wherever it iscritical that the adhesive pattern be verified for presence and placementaccuracy. This sensor, when used in conjunction with a LogiCommVerification System, can accurately detect even small defects in productgluing using a variety of the system’s built-in advanced verification tools.

The HD-70 sensor is quickly and easily calibrated to any hot melt sensingapplication with the push of the TEACH button built into the sensor.



Features Features of the sensor include:

� Small, rugged package, designed to fit today’s smaller, space-optimizedmachines.

� Fast response time easily supports line speeds up to 250 products perminute.

� IP67/NEMA 6 rated sensor for harsh environments.

� Highly sensitive detector is easy to teach with the push of a button forfast set-up and changeover.

� Available with convenient package that includes drop bar mount andcable.

� Two multi-colored LEDs provide at-a-glance status during the productionand teach processes.



Specifications Parameter Specification

Temperature measurement range 0� to 300� (32� to 572� F)

Sensing range Depends on object size and sensingfield of view, see Setup section.

Wavelength 8 to 14 μm

Distance to spot size (D:S) ratio 8:1

Supply voltage 10 to 30V DC (10% maximum ripple); 35 mA max (exclusive of load)

Output configuration One NPN (current sinking) and one PNP(current sourcing) in each model

Output protection Protected against short circuit conditions

Output ratings 100 mA maximum (each output)

OFF-state leakage current: NPN < 200 microamps; PNP < 10microamps

NPN saturation: < 200 mV @ 10 mAand < 1V @ 100 mA

PNP saturation: < 1.2 V @ 10 mAand < 1.6V @ 100 mA

Output response time 25 ms

Delay at power-up 1.5 seconds

Repeatability (relative) 1� C

Minimum taught differential 3� C

Hysteresis 5% of taught differential (minimum 1� C)

Adjustments TEACH mode programming

Indicators One bicolor (Green/Red) status LED,one Yellow LED, see Setup section.

Construction Threaded Barrel: 304 stainless steel

Push Button Housing: ABS/PC

Push Button: Santoprene

Lightpipes: Acrylic

Operating conditions Temperature: −20� to +70� C (−4� to 158� F)

Environmental rating Leakproof design is rated IEC IP67;NEMA 6

Temperature warm-up time 5 minutes



Installation WARNING! Allow only qualified personnel to perform the following tasks.Follow the safety instructions in this document and all other relateddocumentation.

This section describes the following instructions:

� Mount the HD-70 sensor

� Setup

Unpack the HD-70 Sensor The HD-70 sensor is ready to be installed when shipped from the factory.

1. Carefully unpack the HD-70 sensor. Exercise care to prevent equipmentdamage during unpacking.

2. Inspect for any damage that may have occurred during shipping. Reportany damage to your Nordson representative.

3. Make sure that the ship-with kit is included in the box.

Ship-with Kit Make sure that the following items are included in the ship-with kit.

� HD-70 sensor

� HD-70 Hot Melt Sensor manual



Mounting Guidelines Observe the following guidelines when installing the HD-70 sensor:

� Make sure that the mounting location provides sufficient clearance foreasy access to the lens and the associated cables.

� For maximum signal strength, the HD-70 sensor should be installed asclose as possible to the point of adhesive application. However, makesure that it is not positioned so close to the gun (applicator) that theradiant heat will affect the sensor reading.

- The sensor and lens are designed to operate between 0 and 70� C(32 and 158� F).

� The sensor lens must be kept free of dirt, dust, and adhesive.

HD-70 Sensor Dimensions Use the following dimensions to configure the mounting bracket.

Figure 2 HD-70 sensor dimensions



Optimizing Sensor Reading

Sensing Range The sensing range of the HD-70 sensor is determined by the sensor’s fieldof view, or viewing angle, combined with the size of the object(s) beingdetected, see Figure 3. The sensor’s distance-to-spot size ratio (D:S ratio)is inversely related to the viewing angle; a sensor with a small viewing anglewill have a large D:S ratio.

The HD-70 sensor has a D:S ratio of 8:1. For a sensor with an 8:1 D:S ratio,the sensor’s spot size is a 1 inch diameter circle at a distance of 8 inch; farther from the sensor face the spot size will be larger.

Figure 3 Detection spot size versus distance from sensor

Sensor Distance from Sensor Face Versus Spot SizeSensorD:S Ratio 100 200 300 400 500 600 700 800 900 1000 Distance

8:1 13 25 38 50 63 75 88 100 113 125Spot size

(mm)

Object Size for Sensor’s Field of View

If the object being detected does not fill the sensor’s field of view, then thesensor will average the temperature of that object and whatever else is inthe sensing field of view. For the sensor to collect the maximum amount ofenergy, the object should completely fill the sensor’s field of view. However,in some applications, when the object is too small, this may not be possible.In such cases, if the object is hot enough, the thermal contrast may still beadequate to trigger the sensor’s output.



Typical Installation Equipment and production line configuration may dictate a variation in themounting options described in this section. Regardless of the mountingmethod used, refer to Mounting Guidelines.

Align the sensor with the adhesive bead to be detected. The installationdrawing given below is shown for reference, actual installations may differ.

Figure 4 HD-70 installation components

1. Mounting rod2. Sensor cable3. Mounting bracket

4. HD-70 sensor5. Mounting bar6. Universal clamp

NOTE: The interconnect cables, rod, various brackets, and gun moduleand manifold may be ordered separately.



Sensor Connection Use the following sensor connection diagram to make connections.

Figure 5 HD-70 sensor connection diagram

HD-Sensor Cable

Figure 6 5-wire cable (5 meter shown here)

Pinout Information

1: No Contact

2: Brown (+ 24 VDC)

3: Gray (Program)

4: No Contact

5: No Contact

6: No Contact

7: Blue (24V Common)

8: White (Output)

9: No Contact

(Black wire not terminated)

1: Brown

2: White

3: Blue

4: Black

5: Gray

A: Sensor End B: Controller End



Connect the Sensor to the LogiComm Control Module Connect the cable from the DB-9 sensor input connector on the sensor tothe DB-9 connector on the control module’s verification panel.

Figure 7 Connecting the LogiComm control module and the sensor

1. Verification panel2. DB-9 pin sensor input connector on

the control module

3. Sensor cable4. DB-9 pin connector on the sensor

System Startup Before setting up the system, make sure of the following:

� The HD-70 is connected to the control module.

� The control module’s power cable is connected to a grounded outlet.

� The control module is turned on.



Setup The button on the HD-70 sensor allows you to set the sensor sensitivity foreach application.

Status Indicators See Figure 8 for the location of the following components:

Power ON/OFF LED Indicates

OFF Power is off.

ON Green Sensor is in Run mode.

ON Red Teach mode is active.

Output LED Indicates

OFF Run mode: Output is offTeach mode: Waiting for Output OFF condition.

ON Yellow Run mode: Outputs are energized. Teach mode: Waiting for Output ON condition.

Flashing Yellow Dynamic TEACH active.

Figure 8 HD-70 sensorcomponents

1. TEACH button2. Output indicator (OUT) LED3. Power/Teach (PWR) LED4. Sensor lens



Programming the HD-70 Sensor The following two teach methods may be used to program the sensor:

� Teach individual minimum and maximum limits (two-point staticteach)

or

� Dynamic teach for on-the-fly programming

Programming is accomplished by following the sequence of button presses,see Two-Point Teach Procedure and Dynamic Teach Procedure. Theduration of each button press should be between 40 ms and 0.8 seconds.



Two-Point Teach Procedure Two-point teach is the traditional setup method, this is used when twoconditions can be presented individually by the user. The sensor establishesa single sensing threshold (the switchpoint) midway between the two taughtconditions, with the Output ON condition on one side and the Output OFFcondition on the other.

NOTE: General notes on programming:

� The sensor will return to RUN mode if the first TEACH condition isnot registered within 60 seconds.

� After the first limit is taught, the sensor will remain in PROGRAMmode until the teach sequence is finished.

Figure 9 Settings when object to be sensed is hotter than ambient



Two-Point Teach Procedure

Two-Point TEACH Procedure

TEACH Button Result

Programming Mode

Push and hold the button for 2 seconds. � Power LED turns Red.

� Output LED turns Yellow.

Learn Output ON Condition

Present Output ON condition andpress the button.

Output LED turns OFF.

Learn Output OFF Condition

Present Output OFF condition andpress the button.

Teach accepted:

� Power LED turns Green.

� Sensor automatically sets theswitching threshold and returnsto Run mode.

Teach unacceptable:

Sensor returns to the beginning ofTeach.

Exit Without Save

Push and hold the button for 2 seconds. Sensor returns to Run mode

without saving new settings.

Dynamic Teach Procedure

Dynamic teach is a method of setting the sensor’s threshold while theapplication is active. Dynamic teach senses the high and low temperaturelimits of the process and automatically set the threshold at the midpointbetween these limits.

Dynamic TEACH Procedure

TEACH Button Result

Programming Mode

Push and hold the button for 2 seconds. � Power LED turns Red.

� Output LED turns Yellow.

Enter Dynamic TEACH

Push the button 2 times. � Sensor begins dynamiclearning process.

� Output LED flashes Yellow at2 Hz.

End Dynamic TEACH Process

Push the TEACH button once. � Sensor ends data collection.Sets the threshold.

� Power LED turns Green.

� Sensor returns to Run mode.



Parts To order parts, call the Nordson Customer Service Center or the localNordson representative.

Figure 10 HD-70 installation components

Item Part Description1 727480 ROD, 1/4 IN X 8.0 LONG

2 1078804 CABLE, HD−70 SENSOR, 5 METER

2 1078807 CABLE, HD−70 SENSOR, 10 METER

2 1087199 CABLE, HD−70 SENSOR, 10 METER, 90 DEG

3 738606 BRACKET, SENSOR, M18 MOUNT

4 1090384 SENSOR, HOT MELT, HD70

5 727478 DROP BAR SHORT, PHOTO SENSOR

6 7301610 BAR CLAMP, 15 − 32 MM

NS 981392 SCR, SKT, 1/4−20 X .375, ZN

NS 981669 SCR, SKT, 10−32 X .500, BL

NS: Not shown.

Sensor Specific Screens A-1


Appendix ASensor Specific Screens

When the sensor is being operated with the LogiComm control system, youcan access the sensor specific screens from the Sensor menu screen in thetouch-screen panel.

Three inspection methods are used to verify products:

� Template verification setting

� Accumulated bead length

� Maximum gap measurements

The following screens are examples of each inspection type.

Template Verification Setting When initiated by the operator, the engine learns good patterns bymeasuring good products (the number of products is programmable). Fromthis learned data and the tolerances set by the user, a comparison templateis stored in the verification accelerator board.

When verifying normal bead data, sensors are sampled on every encoderpulse and compared to the corresponding template values. If the datacompares favorably to the template data, the product is considered good. Ifproduct data does not match the template within the set tolerance, it isqueued for ejection.

See Figures A-1 and A-2 for examples of a good template setting and adefective template setting.

Sensor Specific ScreensA-2


Template Verification Setting (contd)

Figure A-1 Template settings with no error

1. Ideal bead (green) template2. Actual bead (black)

3. Tolerance band (orange)4. User entered tolerance data

5. Measurements of the actual bead

Figure A-2 Template settings with error

1. Error message in the MessageLog bar

2. Bead defect (circled on screen) 3. User entered tolerance data4. Measurements of the actual bead



Accumulated Bead Length Setting The accumulated bead length verification method provides an analysis toolto monitor too much or too little adhesive on the substrate by allowing theuser to set upper and lower limits for the total length of glue in a designatedarea called the measurement zone. A typical application is for the detectionof excessive glue that could cause a squeeze-out. A squeeze-out occursduring compression when excess glue seeps out of the glue flap, causingthe products to stick together.

In using this method, the user designates the measurement zone byentering the start position and length of the measurement zone. The userthen sets an upper and lower limit to the total amount of measured gluebead over the zone. During the inspection process, the LogiComm systemadds together each bead segment in the specified region, withoutconsideration of the exact location of the segments. The product isdetermined to be defective if the total length of glue bead exceeds the upperlimit or is less than the lower limit.

See Figures A-3 and A-4 for examples of a good accumulated bead lengthsetting and a defective accumulated bead length setting.

Figure A-3 Accumulated bead with no error

1. Actual measured bead (black)2. Measurement zone (blue)

3. User entered minimum andmaximum measurements andzone settings




Accumulated Bead Length Setting (contd)

Alarm −HD 70 −Product failed accumulated bead verification.Too little bead.

Figure A-4 Accumulated bead with error


2. Actual measured bead

3. Bead defect - too little adhesivedetected (circled in blue)

4. User entered minimum andmaximum measurements andzone settings


Maximum Gap Setting The maximum gap verification method provides an analysis tool thatinspects for gaps in the adhesive bead that exceed a user-specifiedmaximum. A typical application for maximum gap verification is for theinspection of wheel-applied glue where railroad tracks, or broken beads arecommon, and where the critical quality control measure is to ensure thatgaps in the glue are not excessive in order to ensure bond integrity.

In using this method, the user designates the measurement zone byentering the start position and length of the measurement zone. The userthen sets a maximum gap length limit. During the inspection process, theLogiComm system inspects over the user-specified region, comparing eachgap in the adhesive bead to the maximum limit, and without consideration ofthe exact location of the gaps and segments. The product is determined tobe defective if any gap exceeds the maximum gap limit.

See Figures A-5 and A-6 for examples of a good maximum gap setting anda defective maximum gap setting.



Figure A-5 Maximum gap setting with no error

1. User entered measurement zone2. Actual bead pattern

3. User entered minimum andmaximum gap measurementsand zone settings


Figure A-6 Maximum gap setting with error


2. User defined measurement zone

3. Gap error − maximum gap toolarge (circled in green)

4. User defined maximum gapmeasurement and zone settings

5. Actual bead measurement data

hd-70 hot melt sensor - nordsonemanuals.nordson.com/adhesives/english_manuals/1091995.pdf · hd-70...

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