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Accubar� Bar Code Verifier

Customer Product ManualPart 321356D02

Issued 2/10

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

Part 321356D02 � 2010 Nordson CorporationAll rights reserved

Manual 65-ACC-MA-01

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 February 2001.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, AquaGuard, Asymtek, Automove, Autotech, Baitgun, Blue Box, CanWorks, Century, CF, Clean Coat, CleanSleeve, CleanSpray,Control Coat, Coolwave, Cross-Cut, Cyclo-Kinetic, Dispensejet, DispenseMate, DuraBlue, Durafiber, Durasystem, Easy Coat, Easymove Plus, Econo-Coat,

EFD, ETI, Excel 2000, FlexiCoat, Flexi-Spray, Flex-O-Coat, Flow Sentry, Fluidmove, FoamMelt, FoamMix, Heli-flow, Helix, Horizon, Hot Shot, Isocoil,Isocore, Iso-Flo, JR, KB30, Kinetix, Little Squirt, Magnastatic, March, MEG, Meltex, Microcoat, Micromark, MicroSet, Millennium, Mini Squirt, Moist-Cure,

Mountaingate, MultiScan, Nordson, OmniScan, OptiMix, Package of Values, PatternView, PermaFlo, Plasmod, PluraFoam, Porous Coat, PowderGrid,Powderware, Prism, ProBlue, Pro-Flo, ProLink, Pro-Meter, Pro-Stream, RBX, Rhino, Saturn, SC5, S. design stylized, Seal Sentry, Select Charge,

Select Coat, Select Cure, Slautterback, Smart-Coat, Solder Plus, Spectrum, Speed-Coat, Spraymelt, Spray Squirt, Super Squirt, Sure Coat, Tela-Therm,Tracking Plus, Trends, Tribomatic, Ultrasaver, UniScan, UpTime, Veritec, VersaBlue, Versa-Coat, Versa-Screen, Versa-Spray, Walcom, Watermark, and

When you expect more. are registered trademarks of Nordson Corporation.

AeroDeck, AeroWash, Apogee, ATS, Auto-Flo, AutoScan, BetterBook, CanNeck, Chameleon, Check Mate, ColorMax, Controlled Fiberization,Control Weave, CPX, Dry Cure, Dura-Coat, DuraPail, Dura-Screen, Easy Clean, Eclipse, EcoDry, e.DOT, E-Nordson, Equi=Bead, ESP, e Stylized,

Fillmaster, Fill Sentry, Gluie, HDLV, iControl, iFlow, Ink-Dot, iON, Iso-Flex, iTrend, iTRAX, KVLP, Lacquer Cure, Maxima, MicroFin, MicroMax, Minimeter,Multifil, OptiStroke, Origin, PatternPro, PluraMix, Powder Pilot, Powercure, Primarc, Printplus, Process Sentry, Pulse Spray, PurTech, Ready Coat, Royal Blue, Scoreguard, Select Series, Sensomatic, Shaftshield, SheetAire, Spectral, Spectronic, Speedking, Spray Works, Summit, SureBead,

Sure Brand, Sure Clean, Sure-Max, Swirl Coat, Tempus, ThruWave, Trade Plus, Trak, TrueBlue, Ultra, Ultrasmart, Universal, Vantage, Viper, 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.

Table of Contents i

Part 321356D02� 2010 Nordson Corporation Manual 65-ACC-MA-01

Table of Contents

Description 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Components 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Console 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trigger 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other Components 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Capabilities 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applications 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Check the Parts Inventory 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Select a Scanner Location 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Select a Trigger Location 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Select a Console Location 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mount the Equipment 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connect All Cables 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setup 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust the Trigger 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard Trigger Adjustment 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fiber-optics Trigger Adjustment 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trial Run 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Find the Removal Point for Defective Products 21 . . . . . . . . . . . . . . . . . . . . . Teach the Tracking Distance 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accubar Console Controls and Indicators 22 . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner Indicators 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Start the System 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Restart the System After a Machine Stop 25 . . . . . . . . . . . . . . . . . . . . . . . . . . Change Products 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean the Scanner Windows 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Wiring Diagram 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting Table 27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Check for a Sufficient Number of Scans 30 . . . . . . . . . . . . . . . . . . . . . . . . . . .

Formula for Picket-Fence Label Orientation 31 . . . . . . . . . . . . . . . . . . . . . . Formula for Ladder Label Orientation 31 . . . . . . . . . . . . . . . . . . . . . . . . . . .

Check Trigger Operation 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing the Line Fuse 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing the Machine Stop Relay 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing a Scanner 35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contentsii

Part 321356D02 � 2010 Nordson CorporationManual 65-ACC-MA-01

Parts 36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Illustrated Parts List 36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Major Components 37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bracket Components 37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cables 38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Spare Parts 38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications 39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System 39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Console 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trigger 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Dimensions 41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Console 41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner 41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bar Code Selection A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting a Symbology That Accubar Can Verify A-2 . . . . . . . . . . . . . . . . . . . Meeting External Requirements or Standards A-2 . . . . . . . . . . . . . . . . . . . . . . Encoding the Information A-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Encoding Variable-Length Data A-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Minimizing the Code Space Requirement A-5 . . . . . . . . . . . . . . . . . . . . . . . . . . Maximizing Verification Security A-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting a Symbology that is Easy to Print A-7 . . . . . . . . . . . . . . . . . . . . . . . .

Bar Code Design A-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deciding on the Print Size for the Code A-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . Providing a Sufficient Quiet Zone A-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Choosing the Code Orientation A-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the Color and Contrast for the Code A-9 . . . . . . . . . . . . . . . . . . . . . .

Printing Considerations A-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ensuring a High Quality Substrate A-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Achieving the Required Print Quality A-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accubar� Bar Code Verifier 1



Description The Accubar™ Bar Code Verifier monitors bar code accuracy in high speedpackaging and converting operations. Accubar detects unreadable, missingand incorrect codes. Accubar uses a laser diode scanner capable of 2000scans per second that can monitor any of eight bar code symbologies at linespeeds up to 425 mpm (1400 fpm). It indicates the status of each productwith a good code or bad code indicator. Each time it finds a defective code,it turns on two outputs. One output can be used to stop the parent machineor its feed section. The other output is used for linking the Accubar systemto a Nordson G-NET verification system. When the Accubar system is usedwith a G-NET system, products with defective bar codes are automaticallytracked and either ejected from the line or marked for removal.

5601132A

G-Site Interface

Machine-stop

Bad-Code Output Cable

(not part of system)

Trigger

Console

Scanner

Cable

Figure 1 Key Components of the Accubar Bar Code Verifier

Accubar� Bar Code Verifier2


System Components The Accubar system has three major components:

� laser scanner� control console� trigger (photo eye)

The system includes the hardware and cables used to mount and connectthese components.

Scanner When a bar code moves into the field of view of the scanner, the system’strigger starts the read cycle. The scanner repeatedly scans the bar code asit moves through the visible laser beam, called the scan line. If a sufficientnumber of good reads is obtained, the scanner sends a good-read signal tothe Accubar console.

The scanner recognizes eight different bar code symbologies and readscodes in either the ladder or the picket-fence orientation.

5601112

Scanner

Bar Code

Scan Line

Figure 2 LA5100 Scanner



Console The console provides the controls and indicators required to operate theAccubar system. It also contains a power supply, output relays, and amicroprocessor. The microprocessor controls the automatic teach functionand stores the reference code. The system detects a bad code:

� when the print quality of the code is so defective that the code isunreadable

� when the code is in the wrong position or altogether missing

� when the wrong code (one other than the reference code) is detected.

5601115

Console

Operator Panel

Figure 3 Accubar Console



Trigger A diffuse-mode photo eye is used as a trigger to begin and end the scancycle. The trigger signals the system to begin the scan cycle when itsenses the leading edge (or some other selected edge) of the product.Scanning continues until the trailing edge (or some other selected edge) ofthe product is sensed.

Two types of photo eyes are available for the trigger. The standard triggerprovides a small spot diameter and has a response time of 300microseconds. The optional fiber-optics photo eye can be used whenmounting space is limited or when a faster response is required. Thefiber-optics trigger can be set for either a 50 or a 500 microsecond responsetime.

5601111

StandardZone Trigger

Fiber-OpticsZone Trigger

Figure 4 Standard and Fiber-Optics Triggers

Other Components The Accubar system also includes cables to connect the major componentsincluding two output cables, one for stopping the machine and one forsending a bad-code output signal to a Nordson G-NET verification system.A variety of mounting components is available.



System Capabilities This section explains the key applications of the Accubar system and someof its major features. The key industries in which the system is used includefolded carton manufacturing, case sealing, and container filling.

Applications Application Explanation

Verify bar codes on high-speedproduction lines.

The scanner operates at 2000 scans per second at line speeds ashigh as 425 mpm (1400 fpm) for codes in the picket-fenceorientation.

Verify bar codes on both constantspeed and variable speed lines.

The system is not affected by changes in line speed.

Verify bar codes in either ladder orpicket-fence orientation of the barcode.

The system can read bar codes in either the picket-fence or theladder orientation. However, for most bar code designs,picket-fence orientation allows higher line speeds because morescans can be completed during the scan cycle. For a 25 mm (1 in.)high bar code in the ladder orientation, the maximum line speed isapproximately 150 mpm (500 fpm).

Verify different bar codes with thesame scanner.

The system can read any of the following codes:

� UPC/EAN

� Code 39

� Interleaved 2 of 5

� Code 93

� Code 128

� Codabar

� Pharmacode (from 3−16 bars)

� Bobst Code (from 3−16 bars)

Check die-cut or print registration. The system can be used to monitor bar code movement in thedirection perpendicular to the scan line when picket-fenceorientation is used. For example, if a bar code is 6 mm (0.25 in.)high and the scan line is centered so that 3 mm (0.13 in.) of eachbar is above the scan line and 3 mm is below, the system willgenerate a fault anytime the code position shifts more than 3 mm(0.13 in.) in either direction that is perpendicular to the scan line. Atthis point the scanner can no longer read the code because it hasmoved outside the scan line.

Stop the parent machine upon badcode detection.

Whenever a bad code is detected, the system activates an outputthat can be used to stop a machine or its feed section.

Eject or mark products withdetective bar codes.

Whenever a bad code is detected, the system activates an outputthat can be used to send a signal to a G-NET detection system.When the G-NET system receives a signal from the Accubarsystem, it automatically tracks the product and either ejects it ormarks it for removal.



Features Feature Description

Automatic teaching The system captures the next good bar code and uses it as thereference code.

Enable/disable alarm key The alarm function can be quickly enabled or disabled by pressinga single key.

Quick-disconnect cables Electrical installation can be quickly completed by plugging in thequick-disconnect cables. Troubleshooting is facilitated.

Easy-to-use central control panel Operation requires the use of only three keys and six indicators.The system turns on either a GOOD CODE or a BAD CODEindicator for each product that is scanned.

Use of international symbols onpanel

Non-English speaking personnel can quickly understand how tooperate the system.

Installation

Check the Parts Inventory 1. Verify shipment of the following components:

� one Accubar console

� one LA5100 scanner and a scanner interconnect cable

� one trigger (photo eye) and a trigger cable

� mounting hardware for the major components (optional)

� one machine-stop cable

� one fault-output cable

� two power cables (one 115 VAC and one 230 VAC cable).

2. Inspect the equipment for any damage that may have occurred duringshipping. Report any problems to a Nordson representative.



Select a Scanner Location 1. Consider the following recommendations and requirements in choosing

a location for the scanner.

Location Factor Recommendation or Requirement

Best opportunity for scanning barcode

Select a location where the code is fully visible to the scanner.On carton folder glue machines, the best opportunity is often justprior to or after the glue flap pre-break section. With a G-NETsystem, consider a location soon after the feed section so thefeeding of products can be stopped quickly when defective barcodes are detected on the line.

Sufficient space for mounting Refer to Technical Data for scanner dimensions.

Avoiding interference from glueassist lines

Locate scanner so that no glue assist lines pass through thescan line.

Reduction of reflected light Locate the scanner away from direct sunlight, bright ambient ortask lighting, or light from other equipment, such as the system’sphoto eye. Minimize the amount of direct or reflected light thatcan enter the scanner.

Protection of cables Protect the connecting cable from any moving machine partsand passing products.

Protection from dust and moisture Choose a location that meets IP54 requirements.

2. Position the scanner so the bar code label will pass through the scanline.

� If a picket-fence orientation of the code is used, align the scan lineso that half of each bar is above the line and half below.

� If a ladder orientation of the code is used, align the scan line so thatthe code is centered on the scan line.

5601125

Direction of Line Travel

Scan Line

Picket-Fence Orientationof Bar Code

X

X


Scan Line

Ladder Orientationof Bar Code

X

X

Figure 5 Correct Label Alignment for Picket-Fence and Ladder Oriented Labels



Select a Scanner Location (contd)

3. Set the distance from the scanner window to the surface of the product.

� For Pharmacode and Bobst code, the distance should be fixed at127 mm (5 in.).

� For all other codes, set the distance at 127 mm (5.0 in.), but ensurethat the mounting bracket allows the distance to be adjusted from102−152 mm (4−6 in.).

5601126Product Surface

127 mm(5.0 in.)

Figure 6 Distance from Scanner to Product Surface

4. If the bar code is in the picket-fence orientation, ensure that the scanneris positioned correctly in relation to the direction of product flow.Figure 7 shows the correct position of a scanner that is mounted aboveor below the product surface.

NOTE: If a bar code in the picket-fence orientation does not approach thescanner on the side where the cable connects to the scanner, the scannerwill not operate properly. If the bar code is in the ladder orientation, thedirection of product flow does not matter.

5601134A

Backof Scanner

Product FlowScanning fromAbove Product

Scanning fromBelow Product

Product Flow

Figure 7 Scanner Position for Picket-Fence Bar Codes



5. See Figure 8. If the product surface is shiny or reflective so that lightcould be reflected from the product surface back into the scanner,slightly tilt or skew the scanner slightly by either:

a. Pitching the scanner approximately 10 degrees from the horizontal(in either direction) as shown. Avoid angles from 3−5 degrees,which can cause increased reflection.

b. Skewing the scanner approximately 10 degrees from the vertical in either direction) as shown.

Method A

Approximately 10�from Line Parallelto Product Surface

Product Surface

Approximately 10�from Line Perpendito Product Surface

Method B

Figure 8 Two Ways to Avoid Reflected Light



Select a Trigger Location 1. Consider the following recommendations and requirements in choosing

a location for the trigger:

Location Factor Recommendation or Requirement

Distance of lens from product surface (standard trigger) Position the trigger lens 15−18 mm(0.6−0.7 in.) from the product surface.

(fiber-optic trigger) Position the trigger lens 11−15 mm(0.4−0.6 in.) from the product surface.

Interference with scanner operation Make sure that the light from the trigger does not shine (oris not reflected) into the scanner.

Avoiding stress on fiber-optic cable Avoid excessive bending of the fiber-optic lens cable. Theinside bend radius should not be less than one inch.

Protection of cables Select a location that protects cables from any movingmachine parts and passing products.

Protection from dust and water Select a location that meets IP67 requirements.

2. Position the trigger so that the scan cycle is activated where successfulreads start occurring. See Figures 9 and 10.

5601116

Outside Limit of Read Range Position of Bar Code WhereSuccessful Reads StartOccurring

Scan Line

Carton or Other Product


Edge of ProductThat ActivatesTrigger

Optimum Locationfor Trigger

Figure 9 Optimum Location of Trigger for Picket-Fence Oriented Bar Codes

� For bar codes with picket-fence orientation, successful reads start whenthe entire code (including quiet zones) is within the scan line.



5601117

Outside Limit of Read Range

Position of Bar Code WhereSuccessful Reads StartOccurring

Scan Line

Carton or Other Product


Edge of ProductThat ActivatesTrigger

Optimum Locationfor Trigger

Figure 10 Optimum Location of Trigger for Ladder Oriented Bar Codes

� For bar codes with ladder orientation, successful reads start when theleading edge of the code first crosses the scan line.

Select a Console Location Location Factor Recommendation or Requirement

Ease of operation Locate at eye level for optimum viewing.

Sufficient cable lengths Locate where all the connecting cables are long enough toreach from the external components (the scanner and thetrigger) to the console. Verify also that the power cable islong enough to reach a power outlet and, if the system isused with a G-NET detection system, verify that the outputcable will reach the G-SITE network interface.

Protection of console from damage Protect the console from personnel moving about and frommoving equipment or other objects.

Protection from dust and water Select a location that meets IP54 requirements.

Sufficient space for mounting Refer to Technical Data for console dimensions.



Mount the Equipment 1. Mount the scanner in the selected location using either the bracket

components that were ordered with the Accubar system (see Figure 11)or brackets that you supply.

2. Mount the trigger in the selected location. For the fiber-optics trigger,connect the fiber-optics cable to the trigger housing using theinstructions that were shipped with the trigger.

Trigger

Scanner

Folding Carton

Figure 11 Mounting the Trigger and the Scanner



CAUTION: Failure to observe may result in equipment damage.

3. Mount the Accubar console in the selected location. Use either themounting pole and two clamps and two 1/4-20 screws that were orderedwith the Accubar system or brackets that you supply.

Mounting Clamp

Mounting Surface

Access Hole for Set Screw

Accubar Console

Mounting Pole

5601133

Figure 12 Mounting of Accubar Console with Nordson Brackets



Connect All Cables 1. Connect one end of the scanner interconnect cable to the 15-pin

scanner connector. Connect the other end of the cable to the connectorlabeled LASER on the back on the Accubar console.

5601114A

LASER SCANNER

SYSTEM TRIGGER

MACHINE STOP

BAD CODE OUTPUT

LASER

PHOTOEYE

POWER

PARENT MACHINE

ACCUBAR CONSOLE

G-NET SYSTEMG-SITE INTERFACE

FORCE 1 SENSOR

115/230 VAC 50/60 HZ

Figure 13 Accubar System Wiring Diagram

2. Connect the trigger cable to the connector labeled PHOTOEYE on theback of the console. If necessary, use one of the trigger extensioncables to make the connection.

3. Connect either the fault output cable or the machine stop output cable,or both, depending on the application. See the following table forapplicable instructions.

Objective Procedure

Operate the Accubar system as a standalonesystem that stops the machine when products withfaulty bar codes are detected.

1. Connect one end of the machine stop cable tothe connector labeled MACHINE STOP on theback of the Accubar console.

2. Connect the wires at the other end of the cableto the machine so that it will stop when themachine-stop contacts open. See Figure 14.

Operate the Accubar system as part of the G-NETsystem, which ejects or marks products withdefective bar codes.

1. Connect one end of the fault cable to theconnector labeled BAD CODE OUTPUT on theback of the Accubar console.

2. Connect the other end of the cable to theconnector labeled FORCE 1 SENSOR on theG-SITE network interface.

Operate the Accubar system as part of the G-NETsystem and have the systems work together suchthat the Accubar system detects a product with adefective bar code and stops the feed section ofthe machine, and the G-NET system ejects theproduct.

1. Connect the machine stop cable as instructedin the top box of this table, but in step 2,connect the wires so they will stop the feedsection of the machine instead of machineitself.

2. Connect the fault cable as instructed in themiddle box of this table.



5601128B

Black (common)

Red (normally closed)

12

3

ÎÎÎ

ÎÎÎ

White

Shield

Figure 14 Machine Stop Cable Wiring

3. Select either the 115 VAC or the cable 230 VAC power cables shippedwith the Accubar console. Connect one end of the cable to theconnector labeled POWER on the back of the Accubar console. Plugthe other end of the cable into a 115 VAC or 230 VAC power source(50/60 Hertz).

4. Where possible, tie cables together using wire ties and ensure that allcables are embedded in conduits or raceways along the machine. Makesure that cables are protected from any moving or rotating parts of themachine or from moving products.

5. Label all cables using appropriate names or numbers.



Setup Adjust the Trigger

Standard Trigger Adjustment1. Remove the cover from the back of the trigger housing.

2. Select an operating setting:

� light-operate mode for light-colored or reflective products.

� dark-operate mode for dark-colored or non-reflective products.

5601098

Sensitivity Adjustment Screw

Alignment/Output Indicator

Light/Dark Mode Selector

Figure 15 Controls and Indicators on Standard Trigger

3. Set the light/dark mode switch.

� Light-on operation: Turn the mode selector switch fully clockwise.

� Dark-on operation: Turn the mode selector switch fullycounter-clockwise.

4. Stop the production line, place the product on the line opposite thetrigger and verify that the red output light is flashing rapidly. If not, adjustthe distance of the lens from the product surface until the light is flashingrapidly, keeping within the recommended distance of 15−18 mm(0.6−0.7 in.)

5. Turn the sensitivity adjustment screw until the red output light is turningon and off at the fastest rate:

� clockwise to increase sensitivity.

� counter-clockwise to decrease sensitivity.

6. Run the line at jog speed. Verify that the red output light turns on withthe leading edge of the product (or some other edge used to activate thetrigger) and off with the trailing edge of the product (or some other edgeused to deactivate the trigger).

7. Run the line at normal operating speed and verify that the trigger isworking correctly.

8. Replace the cover on the back of the trigger housing.



Fiber-optics Trigger Adjustment1. Decide whether to use the 50 μs (0.05 ms) mode or the 500 μs (0.5 ms)

mode. For most applications, the 50 μs mode is best.

5601083

Sensitivity Adjustment Screw

Signal Strength Display

Response Time Selector

Output Indicator

Power-on Indicator

Figure 16 Controls and Indicators on Fiber-optics Trigger

2. Check the current setting of the response time selector switch. Turn theswitch to the desired setting.

3. Run the production line at normal operating speed.

4. Turn the sensitivity adjustment screw until the yellow output light isturning on and off with each product:

� clockwise to increase sensitivity.

� counter-clockwise to decrease sensitivity.



Trial Run Use this procedure to check system operation and fine-tune it for the bestperformance.

1. If the ALARM ENABLE light is on, press ALARM ENABLE. The lightturns off, indicating that the machine-stop and fault outputs are disabled.

2. Rotate the trigger to a position where it will not be activated by products.

3. Start the production line and run it at jog speed.

4. Stop the line when the entire bar code is within the scan line.

NOTE: The teach procedure can be performed at normal operating speed,but it is not as reliable as teaching the code while it is stationary with theread cycle manually activated. When the line is running, the system caninterpret printing on the product or even parts of the machine as a goodcode. If this happens, the Accubar system will not be able to detect badcodes.

5. Press TEACH.

6. Place a hand in front of the trigger and keep it there. Make sure that theyellow PHOTO SENSOR light on the Accubar console is on.

7. Remove the hand to end the scan cycle. The yellow PHOTO SENSORlight turns off and the system captures the bar code (if it is a readablecode) and stores it in the system’s memory. It uses this bar code as thereference code for checking all other codes.

8. Replace the trigger in its original position, being careful that thetrigger-to-product distance is set the same as before.

9. Increase the line speed to about one half the normal operating speed.

10. Observe the green GOOD CODE and red BAD CODE lights on theAccubar console.

� If the green GOOD CODE light is always on or on except for a fewBAD CODE lights, go to the next step of this procedure.

� If the BAD CODE light is always on, repeat the teach procedure,making sure that the code used to teach the system is a good one(and properly designed) and that the product is stationary during theteach process.

� If the GOOD CODE light turns on some, but the rate of BAD CODEindications is too high, try one or more of the adjustments in thefollowing table to fine-tune the system’s performance.



Adjustment Instructions

Prevent light from reflecting backinto the scanner.

Eliminate any unnecessary light (sunlight, ambient lighting, tasklighting) in the scanner area. In addition, place the scanner atan angle to the product surface (about 10 degrees) asinstructed in the procedure Select a Scanner Location.

Increase the scan time. Locate the trigger so that the bar code receives the maximumnumber of scans possible for this line speed. Refer to Select aTrigger Location.

Adjust the distance of the scannerwindow from the product surface(unless the bar code is aPharmacode or a Bobst code).

Move the scanner window closer or further from the productsurface within the recommended range of 102−152 mm(4.0−6.0 in.). Use Figure 17 to find the optimum distance.

NOTE: For Pharmacode or Bobst code, the distance should befixed at 127 mm (5.0 in.).

Examine the code design. Determine whether the bar code is properly designed. Refer tothe appendix of this manual for the principles of good codedesign.

WARNING: Never look directly into the laser light source or point the beamat other people. Looking at the source of the laser beam can cause seriousinjury to the eyes.

11. Increase the speed to normal operating speed and verify that the systemis still detecting good codes when the bar codes are good. If the systemstarts reporting bad codes at the higher line speed, either reduce theline speed or try one or more of the adjustments in the table for theprevious step.

12. Press ENABLE ALARM and challenge the system with some productswith known bad codes to see if they are detected. If the systemsuccessfully detects the defective codes, you have completed thisprocedure. If the system fails to detect the defective codes, refer toTroubleshooting.



Trial Run (contd)

5601119

inches millimeters

1

2

3

50

4 100

5

6 150

7

8

9

200

50 50

123 0 1 2 3

millimeters

inches

0 0

Narrow Bar Width: High Density

5 mil (0.127 mm)7.5 mil (0.191 mm)

7.5 mil (0.191 mm)

Narrow Bar Width: Low Density

10 mil (0.254 mm)

15 mil (0.381 mm)

20 mil (0.508 mm)

Figure 17 Optimum Read Ranges for Different Bar Code Sizes



Find the Removal Point for Defective Products Use this procedure to find where the product with the defective bar codestops when the machine stops, or, in some cases, where the first defectiveproduct stops when the system finds a series of defective bar codes. Oncethis location has been identified and marked on the parent machine,products can be quickly found and removed with defective bar codes whenthe machine stops.

1. Create several defective products by marking over the bar code with ablack marking pen.

2. Run the line at normal operating speed.

3. Feed one of the defective products into the machine.

4. When the machine stops, locate the marked product.

5. Place a piece of tape or make some other mark on the machine at thecenter point on the defective product.

NOTE: Verify results by repeating the test. Press ALARM RESET, start themachine, and place another product with a blackened code on the line. Ifthe line is running at the same speed as before, the product should stop inthe same location.

NOTE: If the operating speed of the machine is changed for any reason,the defective product will come to a stop in a different location. Change theposition of the mark when changing line speeds. Repeat this procedureevery time product with a different size or shape is used.

Teach the Tracking Distance If the Accubar system is linked to a G-NET system, teach the trackingdistance for product ejection or marking. Refer to the G-NET systemmanual and follow the procedure Teach the Tracking Distances for theSystem. Cover the scanner window prior to performing the procedure andremove the cover after completing the procedure. Also, when instructed topress the TEACH key, press the TEACH key on the G-NET console, not theAccubar console.



Operation Prior to routine operation, teach the system a good bar code. The systemuses this bar code to check each product it scans. When the leading edge(or some other selected edge) of a product activates the trigger, the readcycle begins. The scanner repeatedly scans the target area on the product,looking for a bar code that matches the good code the system was taught.If a match is found, the system turns on the GOOD CODE light. It turns onthe BAD CODE light when a code

� is either missing or significantly out of registration,� cannot be reliably read, or� does not match the reference code taught to the system.

The system also turns on two outputs each time a defective code isdetected. One output can be used to stop the production machine or themachine’s feed section. The other output can be linked to a NordsonG-NET verification system.

When the Accubar system is used with a G-NET system, products withdefective bar codes are automatically tracked and either ejected from theline or marked for removal.

Accubar Console Controls and Indicators

5601113

1

2

3 4 5 6 7 8 9 10

Figure 18 Accubar Console Controls and Indicators



Item Control/Indicator Function of Key or Light

1 Power switch Used to turn the system on or off.

2 POWER light (red) Turns on when power is applied to system.

3 ENABLE ALARM light (green) Turns on when the alarm is enabled.

4 ENABLE ALARM key Used to enable or disable the alarm.

5 ALARM RESET light (red) Turns on when alarm contacts have been tripped and mustbe reset.

6 ALARM RESET key Used to reset the alarm contacts.

7 BAD CODE light (red) Turns on each time a bad code is detected.

8 GOOD CODE light (green) Turns on each time a good code is detected.

9 TEACH key Used to capture the next readable bar code, which becomesthe reference code.

10 PHOTO SENSOR light (yellow) Turns on when the read cycle is activated (by the leadingedge or some other edge) and turns off when the read cycleis deactivated (by the trailing edge or some other edge).

Scanner Indicators

5601127

1 2 3 4

Figure 19 Scanner Indicators

Item Indicator Function of Key or Light

1 POWER light (red) Turns on when power is applied to the scanner.

2 Read rate lights Not used.

3 Status light Not used.

4 GOOD CODE light Turns on with each readable code.

— Beeper (not shown) Beeps with each bar code that is successfully read.However, a code that can be successfully read can still be abad code if it does not match the reference code that wastaught to the system.



Start the System Use this procedure to start the system after it has been turned off.

NOTE: Upon returning the system to operation after an interruption orbreak in the production run if the system did not turn off, skip the first ninesteps of this procedure. Perform step 10, and, if the alarm is off, step 11.

1. Place the power switch on the Accubar console in the on position.

2. Rotate the trigger to a position where it will not be activated by products.

3. Start the production line and run it at jog speed.

4. Stop the line when the entire bar code is within the scan line.

NOTE: The teach procedure can be done at normal operating speed,but this method is not as reliable as teaching the code while it isstationary and the read cycle is manually activated. When the line isrunning, the system can interpret printing on the product or even parts ofthe machine as a good code. If this happens, the Accubar system willnot be able to detect bad codes.

5. Verify that the code is the correct bar code before teaching it to thesystem.

6. Press TEACH.

7. Place a hand in front of the trigger and keep it there. Make sure that theyellow PHOTO SENSOR light on the Accubar console is on.

8. Remove the hand to end the scan cycle. The yellow PHOTO SENSORlight turns off and the system captures the bar code (if it is a readablecode) and stores it in the system’s memory. It uses this bar code as thereference code for checking all other codes.

9. Replace the trigger in its original position, being careful that thetrigger-to-product distance is set the same as before.

10. Increase the line speed to normal operating speed. Allow the line speedto stabilize and ensure that the feed system is stable.

11. Press ENABLE ALARM. The alarm and machine stop outputs areenabled and the light on the key turns on.



Restart the System After a Machine Stop Use this procedure to resume operation when a defective product causes amachine stop (or a stop of the feed section).

1. Locate the defective product (or products) and try to determine the typeof bar code error that caused the machine stop. Take any correctiveaction that may be needed.

NOTE: If the system is installed to stop the parent machine (and notjust the feed section of the machine), the defective product will belocated at the point you marked on the line in the procedure Find theRemoval Point for Defective Products.

2. Press ALARM RESET. The light on the key turns off.

3. Start the machine (or the feed section of the machine).

Change Products Use the following table as a checklist of possible tasks or procedures toperform whenever there is a change in the production process, whether it isa product changeover or some minor change.

Task or Procedure When to Perform

Change the trigger location. When the size or shape (or color) of the product changes,when the location or size of the bar code changes, or whenthe position of the scanner changes.

Adjust the trigger sensitivity. Anytime the trigger location is changed or adjusted or whenthere is a change on the surface of the product (printing ortype of material used).

Change the scanner location. When the product size or shape changes or the bar codesize or location changes. If the code is a Pharmacode orBobst code, ensure that the distance from the scannerwindow to the code is always 127 mm (5.0 in.). For allother codes, the recommended range is 102−152 mm(4.0−6.0 in.).

Change the scanner angle to theproduct surface.

When the reflectivity changes enough to affect theperformance of the scanner.

Do a trial run. When the trigger location or scanner location has changedor when the bar code has been changed in any way.

Find the removal point for defectiveproducts.

Anytime the product size or shape changes or when thenormal operating speed has been changed.

Teach tracking distances. Anytime the distance between the Accubar trigger and thepre-eject sensor changes. If the product size or shapechanges, change the position of the pre-eject sensor toachieve smooth ejection or marking in the correct place.

Teach the system a good bar code. Whenever there is any change in the production process,product design, or bar code. A new reference code mustbe taught each time the system is powered up.



Clean the Scanner Windows As part of routine operation, periodically clean the scanner windows asdescribed in the following procedure. The buildup of dust, dirt, or film oneither window can alter the performance of the scanner.

The frequency that cleaning is required may vary, depending on theoperating environment in which the scanner is used. At the minimum, cleanthe window once a week.

1. Place the power switch on the console in the off position.


2. Clean the scanner windows with a clean, dry Q-tip or cotton cloth.

3. Place the power switch on the console in the on position.

Troubleshooting WARNING: Allow only personnel with appropriate training and experienceto operate or service the equipment. The use of untrained or inexperiencedpersonnel to operate or service the equipment can result in injury, includingdeath, to themselves and others, and damage to the equipment.

WARNING: If this equipment is used with other Nordson or Veritecequipment, refer to the manuals provided with that equipment forinstructions and applicable precautions. Failure to observe this warningmay result in personal injury or death.

System Wiring Diagram

5601114A

LASER SCANNER

SYSTEM TRIGGER

MACHINE STOP

BAD CODE OUTPUT

LASER

PHOTOEYE

POWER

PARENT MACHINE

ACCUBAR CONSOLE

G-NET SYSTEMG-SITE INTERFACE

FORCE 1 SENSOR

115/230 VAC 50/60 HZ

Figure 20 System Wiring Diagram



Troubleshooting Table

Problem Possible Cause Corrective Action

1. System Detects BadCodes When CodesAre Good

Good code not taught. Teach a good code. This must bedone each time the system is turnedon.

Incorrect code taught. Verify that the system was taught thecorrect code and that no bar-likeprinting near the actual code can beread by the scanner as a good code.

Scanner knocked out of position. Check the position of the scanner.

Scanner impaired by reflection. Adjust the scanner position. Refer toSelect a Scanner Location.

Bar code printing is out ofregistration or the product isskewed.

Verify that the code position has notshifted relative to the scanner.

Scanner lens dirty or blocked. Clean or remove obstruction. Referto Clean the Scanner.

Carton flutter is causing bar codemovement.

Stabilize the carton so that thedistance from the scanner to the barcode remains the same during theread cycle and from one product tothe next.

The distance of scanner to productnot within read range.

Correct scanner range. Refer toFigure 21 to find the optimumdistance.

Trigger activating read cycle at thewrong time.

Verify that the trigger activates theread cycle as the bar code enters theread range. Refer to Select a TriggerLocation.

Trigger activated more than onceper product (double-triggering).

Determine whether a cutout or someprinting is causing a second readcycle to occur during each product. Ifthis is the case, relocate the trigger.

System reporting bad codes athigher line speeds.

Refer to System Starts ReportingErrors at Higher Line Speeds,problem 2.

Wrong colors on bar code print. Print the code in black against awhite background. Orange, yellow,or red codes cannot be read at all.Alternatives to a black code are darkgray, dark blue, or dark green.Alternatives to a white backgroundare a muted beige, yellow, or red.

The bar code is not properlydesigned.

Check the bar code design.



Corrective ActionPossible CauseProblem

2. System StartsReporting Errors atHigher Line Speeds

Poor trigger location. Refer to Select a Trigger Location.

Product not stable at high linespeeds.

Stabilize the product so that thedistance from the scanner to the barcode remains the same during theread cycle and from one product tothe next.

Distance of scanner to product notwithin read range.

Correct scanner range. Refer toFigure 21 to find the optimumdistance.

Line speed too fast. Refer to Check for a SufficientNumber of Scans.

Bar code not properly designed. Check the bar code design.

3. System Fails toDetect Bad Bar Codes

The zone trigger out of position. Check the alignment of the triggerand adjust. Refer to the G-NETproduct manual.

Trigger cable is loose ordisconnected at the G-SITE ortrigger connector.

Plug the cable back into theappropriate connector.

Improper trigger sensitivity. Refer to Adjust the Trigger.

Trigger lens dirty or blocked. Clean or remove obstruction.

Trigger or trigger cable defective. Replace.

Scanner not receiving power. Check the power light on thescanner. If it is off, first check thecontinuity of the connecting cables(the scanner cable and theinterconnect cable). If these aregood, replace the scanner.

System is detecting bad codes butnot rejecting or marking theseproducts.

Verify settings, alarm enable and thatthe reject function is enabled at theG-NET console.

4. System Not Rejectingor Marking ProductsWith Defective Codes

Alarm not enabled. Check the ENABLE ALARM key.

Alarm signal not reaching G-NETsystem.

Check for secure linking cableconnections at the back of theAccubar console (BAD CODEOUTPUT) and at the G-SITEinterface (force 1 sensor). If thecable is damaged, replace it.

Problem in the G-NET system. If the light on the REJECT ON/OFFkey is off, press the key. If it is on,refer to the troubleshooting section inthe G-NET manual for othertroubleshooting advice.

5. System Rejecting orMarking the WrongProducts

Accubar trigger knocked out ofposition.

The trigger must be returned to itsoriginal position or the new trackingdistance must be taught to thesystem. Refer to the G-NET manualfor instructions on how to teachtracking.



Corrective ActionPossible CauseProblem

The procedure for teaching thetracking distances was notcorrectly performed.

Clear the machine of all products andcover the scanner window when youteach tracking. Refer to the G-NETmanual for the correct procedure.

Problem in the G-NET system. Refer to the troubleshooting sectionof the G-NET manual1

6. Machine StopFunction Not Working

Alarm not enabled. Check the ENABLE ALARM key.

The machine is not receiving themachine stop signal.

Check for secure cable connectionsat the back of the Accubar console(labeled MACHINE STOP) and at themachine. If the cable is frayed orsevered, replace it. If the cable isgood, replace the machines-stoprelay. Refer to Replacing theMachine Stop Relay in the repairsection of this manual.

Problem in the G-NET system. Check the G-NET console.

7. Machine Cannot BeRestarted After a Stop

The machine-stop contacts in theAccubar system need to be reset.

Check the Accubar console.

The machine-stop contacts in theG-NET system need to be reset.

If the Accubar system is part of aG-NET verification system, check theG-NET console. If the light on thealarm reset key is on, push the key.The light turns off and the machinecan be restarted.



Troubleshooting Table (contd)

5601119

inches millimeters

1

2

3

50

4 100

5

6 150

7

8

9

200

50 50

123 0 1 2 3

millimeters

inches

0 0

Narrow Bar Width: High Density

5 mil (0.127 mm)7.5 mil (0.191 mm)

7.5 mil (0.191 mm)

Narrow Bar Width: Low Density

10 mil (0.254 mm)

15 mil (0.381 mm)

20 mil (0.508 mm)

Figure 21 Optimum Read Ranges for Different Bar Code Sizes

Check for a Sufficient Number of Scans Use the formulas for either picket-fence orientation or ladder orientation toensure that each bar code receives a minimum of 12 complete scans. Theformulas can also be used to find the maximum possible line speed toachieve the minimum number of complete scans or to find the optimumlength of scan line for a given line speed for picket-fence oriented labels.

NOTE: If you are unable to achieve the desired line speed, contact yourNordson representative.



Formula for Picket-Fence Label Orientation

No. of Complete Scans = �Scan�Width� Label�WidthLine�Speed

�� Scan�Rate� 3

where the scan width is the width of the scan line and the label length isthe length of the label, including quiet zones.

Example: If the label is 25 mm wide, the scan line is 100 mm wide, and theline speed is 400 mpm, the number of complete scans would be calculated

as follows: 400�m�min� 1000�mm�m

60�sec�min� 6666�mm�sec

No. of Scans = �100�mm� 25�mm6666�mm�sec

�� 2000�scan�sec� 3 x 2000 scan/sec–3

= 22.5 – 3

= 19 complete scans

Formula for Ladder Label Orientation

No. of Complete Scans =Label�Height

60�sec�min� Scan�Rate� 3

Example: If the label is 25 mm high and the line speed is 400 mpm, thenumber of complete scans would be calculated as follows:

Line Speed = 400�m�min� 1000�mm�m

60�sec�min� 6666�mm�sec

No. of Scans = 25�mm6666�mm�sec

� 2000�scans�sec� 3 � 7.5� 3

= 4 complete scans (an insufficient number of scans, requiring a drop inline speed)

Check Trigger Operation 1. Slow down the production line until you can observe the yellow PHOTO

SENSOR light on the Accubar console turn on and off with each passingproduct.

2. Verify that the light turns on when the trigger detects the product’sleading edge (or some other selected edge) and turns off when it detectsthe trailing edge (or some other selected edge). If the light fails to turnon or if it turns on and off more than once, refer to Adjust the Trigger.



Repair WARNING: Allow only personnel with appropriate training and experienceto operate or service the equipment. The use of untrained or inexperiencedpersonnel to operate or service the equipment can result in injury, includingdeath, to themselves and others, and damage to the equipment.

WARNING: If this equipment is used with other Nordson or Veritecequipment, refer to the manuals provided with that equipment forinstructions and applicable precautions. Failure to observe this warningmay result in personal injury or death.

Replacing the Line Fuse 1. Place the power switch on the Accubar console in the off position.

2. Unplug the main power cable from the back of the console.

3. See Figure 22. Slide the fuse holder out (toward you) by inserting asmall screwdriver in the tab on top of the holder.

5601122

Figure 22 Insert a Screwdriver in the Fuse Holder Tab



4. Remove the fuse and inspect it.

� If it is blown, discard it and install a new fuse in the fuse holder. Usethe extra fuse provided in the fuse cover or, if this fuse has alreadybeen used, refer to Parts, Section 6, to order a new fuse. Slide thefuse holder back into place.

� If it is good, place it back in the fuse holder and slide the fuse holderback into place.

5601123

Figure 23 Removing the Fuse Holder

5. Connect the power cord to the console.

6. Place the power switch on the console in the on position. The POWERlight turns on.



Replacing the Machine Stop Relay 1. Place the power switch on the Accubar console in the off position.

WARNING: Risk of shock. Before opening the electrical enclosure,disconnect power from the unit. The console contains energized electricalcomponents that can cause injury or death.

2. Disconnect the power cable.

3. Remove the cover.

4. Locate the relay on the printed circuit board.

5. Slide the spring retaining clip that secures the relay to the side. Thenrock the relay from side to side until it is loose, and pull it up and removeit.

5601124

Relay

SpringRetainingClip

Figure 24 Removing the Relay

6. Carefully align the pins of a new relay with the holes in the connectorand push the relay into the connector until the bottom surface of therelay is flush with the top of the connector.

7. Slide the spring retaining clip back into position to secure the relay.

8. Reconnect the power cable at the back of the console.

9. Place the power switch on the console in the on position. The POWERlight turns on.



Replacing a Scanner

CAUTION: Failure to observe may result in equipment failure.

WARNING: Do not open the scanner housing when power is applied to thescanner. Opening the scanner could expose you or others to eye injuryfrom the laser light. With the housing open, the laser light intensity canreach a power of 7 mW.


1. Place the power switch on the console in the off position.

2. Wait five seconds for the power supply voltage to bleed off.

CAUTION: Failure to observe may result in equipment failure.

3. Disconnect the scanner interconnect cable from the cordset on thescanner.

4. Remove the scanner from its mounting and replace it with a new one.

5. Attach the cordset of the new scanner to the interconnect cable.

6. Place the power switch on the console in the on position.



Parts To order parts, call the Nordson Customer Service Center or a localNordson representative. Use the parts list to describe and locate partscorrectly.

Using the Illustrated Parts List Numbers in the Item column correspond to numbers that identify parts inillustrations following each parts list. The code NS (not shown) indicatesthat a listed part is not illustrated. A dash (—) is used when the part numberapplies to all parts in the illustration.

The number in the Part column is the Nordson Corporation part number. Aseries of dashes in this column (- - - - - -) means the part cannot be orderedseparately.

The Description column gives the part name, as well as its dimensions andother characteristics when appropriate. Indentions show the relationshipsbetween assemblies, subassemblies, and parts.

Item Part Description Quantity Note— 0000000 Assembly1 000000 � Sub Assembly A2 000000 � � Part

� If you order the assembly, items 1 and 2 will be included.� If you order item 1, item 2 will be included.� If you order item 2, you will receive item 2 only.

The number in the Quantity column is the quantity required per unit,assembly, or subassembly. The code AR (As Required) is used if the partnumber is a bulk item ordered in quantities or if the quantity per assemblydepends on the product version or model.

Letters in the Note column refer to notes at the end of each parts list. Notescontain important information about usage and ordering. Special attentionshould be given to notes.



Major Components

Part Description Note738 180 Scanner, laser, LA5100 (USA codes)727 265 Scanner, laser, LA5100727 646 Console, control, Accubar A738 442 Trigger, standard B313 785 Trigger, fiber-optics B321 356 Manual, product (included with console)

NOTE A: A product manual, part 321 356, is shipped with each console.

B: Either the standard trigger or the optional fiber-optics trigger can be used with the Accubar system.

Bracket Components

Part Description Note727 268 Bracket assembly, scanner, top mount A727 269 Bracket assembly, scanner, side mount A727 173 Mounting, console, clamp and pole727 174 Mounting, console, 30 mm bracket and pole (Bobst machine only)

NOTE A: Either the top or the side mounting bracket assembly can be used to mount the scanner. Theseassemblies provide two different ways to mount the scanner.



Cables

Part Description Note727 648 Cable, interconnect, scanner, 3.7 m (12 ft)727 658 Cable, interconnect, scanner, 7.3 m (24 ft)738 463 Cable, extension, trigger, standard, 3.0 m (10 ft) LKG738 464 Cable, extension, trigger, standard, 6.1 m (20 ft) LKG738 465 Cable, extension, trigger, standard, 9.1 m (30 ft) LKG374 871 Cable, interconnect, trigger, fiber-optics, 4.0 m (13 ft)372 501 Cable, extension, trigger, fiber-optics, 5.0 m (16 ft)727 647 Cable, machine stop, 3.7 m (12 ft)727 128 Cable, bad code output, 6.1 m (20 ft)727 129 Cable, bad code output, 9.1 m (30 ft)727 657 Cable, bad code output, 15.2 m (50 ft)727 649 Cable, power, 115 VAC727 650 Cable, power, 230 VAC

Recommended Spare Parts

Part Description Note738 180 Scanner, laser, LA5100 (USA codes) A727 265 Scanner, laser, LA5100 A727 648 Cable, interconnect, scanner, 3.7 m (12 ft)738 442 Trigger, standard B313 785 Trigger, fiber-optic B1010785 Relay, 12 v coil, 8 A, 250 V DPDT contact (Siemens RTE 24012) C939 741 Fuse, line (used on console), 5 x 20 mm, 250 mA, 250 V, Type T

NOTE A: If the plant has several Accubar systems or if any loss of production time is unacceptable, having a sparescanner is recommended.

B: Either the standard trigger or the optional fiber-optics trigger can be used with the Accubar system.

C: This relay is located on the circuit board inside Accubar console.



Technical Data

Specifications

System Item Specification

Line speed Up to 425 mpm (1400 ft/min) (see note below)

Scan rate 2000 scans/second

Maximum resolution 0.191 mm (7.5 mil or 0.0075 in.)

Minimum quiet zone � Pharmacode/Bobst code: 7 mm

� All other codes: 5 times the width of the narrowest bar

Number of bars � Pharmacode/Bobst code: from 3 to 16 bars

� All other codes: specification does not apply

Recommended range � Pharmacode/Bobst code: fixed at 127 mm (5.0 in.)

� All other codes: 102−152 mm (4.0−6.0 in.)

Bar code orientation Ladder or picket fence

Readable symbologies � UPC/EAN

� Code 39

� Interleaved 2 of 5

� Code 93

� Code 128

� Codabar

� Pharmacode

� Bobst Code

Electrical service 115 or 230 VAC 50/60 Hz

Maximum power requirement 10 watts

Certification/approvals CE

Outputs � Machine stop: 220 VAC @ 5 A (form C)

� G-NET link: open drain 500 mA sink, 50 VDC max

Temperature rating 0−60 �C (32−140 �F)

NOTE: For most bar code designs, picket-fence orientation allows higherline speeds because more scans can be completed during the scan cycle.



Control Console Item Specification

Inputs 3 (scanner, trigger, power)

Outputs 2 (machine stop output, fault output)

Enclosure rating IP54

Dimensions See Figure 25.

Scanner Item Specification

Light source Semiconductor visible laser diode (650 nm nominal)

Skew angle plus or minus 40 degrees maximum

Pitch angle plus or minus 50 degrees maximum

Emissions radiated: CISPR22 EN55022: 1994 Class A

conducted: CISPR22 EN055022: 1994 Class A

Safety class CDRH Class II

Operating temperature 0−40 �C (32−104 �F)

Enclosure rating IP54

Dimensions See Figure 26.

Trigger Item Specification

Type � Standard trigger: diffuse reflective

� Fiber-optics trigger: diffuse reflective

Range � Standard trigger: 15−18 mm (0.6−0.7 in.)

� Fiber-optics trigger: 11−15 mm (0.4−0.6 in.)

Response time � Standard trigger: 300 μsec

� Fiber-optics trigger: 50 or 500 μsec (selectable)

Enclosure rating � Standard trigger: IP67

� Fiber-optics trigger: IP67



Equipment Dimensions

Control Console

5601130

235 mm(9.25 in.)

190 mm(7.48 in.)

125 mm(4.92 in.)

Figure 25 Control Console

Scanner

5601129

57.79 mm(2.28 in.)

76.20 mm(3.0 in.)

41.30 mm(1.63 in.)

Figure 26 Scanner



Bar Code Selection and Design A-1


Appendix ABar Code Selection and Design

This appendix offers help in creating a bar code that meets the objectives ofyour application and provides the best performance of the Accubar bar codeverifier.

The appendix is divided into three parts:

� Bar Code Selection

� Bar Code Design

� Printing Considerations

NOTE: If you do not have an option in the selection of a bar codesymbology and must use a particular one, skip the first part of the appendixand go to Bar Code Design.

Bar Code Selection This part of the appendix provides help in selecting a bar code symbologythat will best meet your requirements.

NOTE: Nordson recommends choosing Code 39 whenever it is possible.The Accubar system reaches its highest level of performance whenCode 39 is used.

Some typical objectives in selecting a bar code symbology include:

� fitting the bar code into a limited space

� maximizing verification security

� using a cost-effective printing method to print the code

� encoding of a certain type of data

� using the standard code for your industry

The selection of a bar code symbology often involves trade-offs betweenachieving one objective and another.

Bar Code Selection and DesignA-2


Selecting a Symbology That Accubar Can Verify Limit the choice of a symbology to one of the eight symbologies that theAccubar system can verify:

� UPC or EAN� Code 39� Interleaved 2 of 5� Code 93� Code 128� Codabar� Pharmacode (a binary code)� Bobst code (a special type of Pharmacode)

Meeting External Requirements or Standards If the bar code is used only for internal purposes, the selection of a codecan be based entirely upon what works best for the application. In manycases, however, the selection must be based upon external considerations.The following table shows the applications and industries that use thevarious bar codes.

Bar Code Symbology Applications and Industries

UPC or EAN

5601136AUPC

Retail Sales

Standard for supermarkets andother businesses that sell to thepublic

UPS – United States standard

EAN – European standard

Code 39

5601139ACODE 39

Inventory Tracking

Standard for many government,manufacturing, education, andbusiness applications; marketsinclude production, couriers,electronics, automotive, steel,chemical, and transport logistics

Interleaved2 of 5

5601137AINTERLEAVED 2 OF 5

Distribution

Production, couriers, consumables,electronics, and transport logistics

Code 93

5601141A

CODE 93

Distribution

High density compliment to code 39


Continued on next page



Bar Code Symbology Applications and Industries

Code 128

5601140ACODE 128

Distribution


Codabar

5601138ACODABAR

Distribution

Libraries, blood banks, cotton andtransportation industries, and insome air parcel expressapplications

Pharmacode

5601147A

A

B

C

A: B: C = 1: 2: 3

PHARMACODE

Pharmaceutical

Standard for the pharmaceuticalindustry in Europe

Bobst code

5601148A

A

B

C A = 1 mmB = 2 mmC = 3 mm

BOBST CODE

Carton Gluing

Folded carton gluing applications,especially in Europe



Encoding the Information Bar code symbologies differ in the type of information they can encode. Thefollowing table explains the type of data that each symbology can encode.

Code Type of Data That Can Be Encoded

UPC/EAN Data relating to retail operations and encoded in thedigits 0 to 9

Code 39 Alphanumeric (0 to 9, 26 characters, and sevenspecial characters); also available with a full ACSIIfeature

Interleaved 2 of 5 Numeric (0 to 9)

Code 93 Alphanumeric (0 to 9, 26 characters, and 11 specialcharacters)

Code 128 Full set of ASCII characters

Codabar Numeric with six additional characters (plus, minus,colon, period, dollar sign, and slash mark)

Pharmacode Any number from 0 to approximately 64,000(expressed in binary code)

Bobst code Any number from 0 to approximately 64,000(expressed in binary code)

Encoding Variable-Length Data If the application requires a bar code that allows you to vary the amount ofdata encoded, you must choose a variable-length symbology. Refer to thefollowing table for the capabilities of the different symbologies.

NOTE: The Accubar system must be re-taught anytime the code changes.

Code Variable-Length Capability

UPC/EAN No, fixed length only

Code 39 Yes

Interleaved 2 of 5 Yes, but must be an even number of digits. Also,security is reduced when a bar code reader isscanning 2 of 5 codes that vary in length.

Code 93 Yes

Code 128 Yes

Codabar Yes

Pharmacode Yes (from 3−16 bars)

Bobst code Yes (from 3−16 bars)



Minimizing the Code Space Requirement If the available space for printing the bar code is limited, select a symbologythat has a high information density. Use the following table to select themost compact code that meets the objectives of your application.Remember to allow space for the quiet zone. Refer to Providing a SufficientQuiet Zone.

Code Compactness

UPC/EAN High information density

Code 39 Low information density

Interleaved 2 of 5 Medium information density, but the highest densitycode (of Accubar choices) for numeric data is lessthan 10 digits long

Compact, prints slightly larger than UPC when 10digits are encoded (UPC has 12)

Code 93 Highest information density (of Accubar choices) foralphanumeric data

Code 128 Highest information density for longer strings ofnumeric-only data

Codabar Low information density

Pharmacode Depends upon the number of bars used, the size ofthe bars, and the number being encoded; compactfor small numbers, but has a low informationdensity for large numbers

Bobst code Depends upon the number of bars used, the size ofthe bars, and the number being encoded:

� For three bars, a Bobst code can be as short as7 mm (plus 14 mm for the quiet zones).

� For sixteen bars, a Bobst code can be as longas 78 mm (plus 14 mm for the quiet zones).



Maximizing Verification Security Use the following table to determine which bar code symbologies providethe most reliable and secure verification process.

Symbology Security

UPC/EAN Always includes one check character

Code 39 A self-checking code; the use of optional checkcharacters can provide further security.

Interleaved 2 of 5 A self-checking code; the use of optional checkdigits can provide further security.

Code 93 Always includes two check characters

Code 128 Always includes one check character

Codabar A self-checking code

Pharmacode Not self checking and has no check characters;Pharmacode and Bobst code are the least securecodes because they have relatively loosespecifications and lack start and stop characters.

IMPORTANT: To prevent the scanner frominterpreting stray marks as a code, ensure that theflap on which the code is printed is free of all otherprinting.

Bobst code Not self checking and has no check characters;Pharmacode and Bobst code are the least securecodes because they have relatively loosespecifications and lack start and stop characters.

IMPORTANT: To prevent the scanner frominterpreting stray marks as a code, ensure that theflap on which the code is printed is free of all otherprinting.



Selecting a Symbology that is Easy to Print Some bar code symbologies are easier to print than others because theydemand less quality in the printing process. These symbologies are said tohave a high print tolerance, which means that variations from the specifieddimensions are not as likely to cause errors.

In general, codes with no information in the spaces have a higher printtolerance, creating a trade off between compactness and printability. Usethe following table to determine the printability of each symbology.

Code Print Tolerance Comments

UPC/EAN Low Printable with offset, typographical and copperplate printing,flexography, computer-controlled printing and phototypesetting

Code 39 High No information in spaces. Printable with offset, typographicalprinting, copperplate and laser printing, thermal printingstarting from one set size only, phototypesetting

Interleaved 2 of 5 Low Low (plus or minus 10 percent) because all the spaces containinformation. (Plus or minus 15 percent is considered to be ahigh print tolerance.)

Printable with offset, typographical and copperplate printing,flexography, computer-controlled printing, andphototypesetting

Code 93 High Not as high as that of Code 39

Code 128 Very low The code uses four different bar or space widths. Printablewith offset, typographical and copperplate printing, thermaltransfer printing, and phototypesetting

Codabar High Easy to print because there is no information in spaces.Printable with offset, typographical and copperplate printing,flexography, numbering and printing, computer-controlledprinting and phototypesetting

Pharmacode Very high Easy to print because there is no information in the spacesand a large difference between the zero character, the space,and the one character: 1:2:3 ratio.

Bobst code Very high Typically easier to print than most Pharmacodes because thedimensions of 1 mm/2 mm/3 mm are used for the zerocharacter, the space, and the one character. (MostPharmacodes are printed with smaller dimensions.)



Bar Code Design

Deciding on the Print Size for the Code As a general rule, print the bar code as large as possible in the space that isavailable for printing (after allowing sufficient space for the quiet zone). Oneexception to this rule is Bobst code, which is always sized according to theBobst code specification.

The width of a bar code is determined by setting the width of the narrowestbar, which is referred to as the X dimension. Refer to the following table forfurther information on printing size.

Bar Code Symbology Width of Smallest Bar Height

Bobst code 1 mm (by specification) See Notes A and B.

All other codes Minimum of 15 mil (0.4 mm) See Notes A and B.

NOTE A: If the bar code is in the picket-fence orientation, ensure that the height is sufficient to prevent the codefrom moving beyond the scan line when minor shifts in print registration occur. Minimum height should beat least 4 mm (0.16 in.) to allow at least 2 mm (0.08 in) on each side of the scan line.

B: If the bar code is in the ladder orientation, maximize the height of the code because the maximumpossible line speed increases as the height of the code increases. Ensure that the code is at least 12 mmhigh for each 100 mpm of line speed.

NOTE: For non-binary bar codes, it is best to limit the amount ofinformation in the bar code symbol to the least amount of data possible.The fewer the number of characters in the code, the larger the print can beand the higher the performance of the verification system.

For binary bar codes (Pharmacode and Bobst), the use of five or more barsis recommended. Although the use of three bars is possible, the use of fiveor more bars will result in the most accurate readings.

Providing a Sufficient Quiet Zone Ensure that the bar code provides the minimum specified quiet zone for thetype of bar code printed. The quiet zone is a clear space (with no printing,dark marks, or holes) that precedes the start (first) character of the codeand follows the stop (last) character of the code. The following table showsthe minimum quiet zone specifications.

Bar Codes Quiet Zone Specifications

Pharmacode or Bobstcode

� Minimum of 7 mm preceding the first bar

� As long as possible after the last bar (preferably the length of the glue flap)

� No printing, other codes symbologies, or holes inside the quiet zone

All other bar codes Five times the width of the narrowest bar before the first character and afterthe last character



5601146AUPC

QUIETZONE

QUIETZONE

Figure -27 Typical Quiet Zone

Choosing the Code Orientation For most bar code verification applications, the code should be located onthe product where it will be read in the picket-fence orientation. Unless it ispossible to have a large height dimension, the Accubar system will operateat higher line speeds in the picket fence orientation.

Selecting the Color and Contrast for the Code The best performance of the scanner is achieved when the contrast (thedifference in reflectance) between the bars and the spaces is the greatest.Print the bars in black against a white background whenever possible. Thefollowing table shows the various color combinations that can be used.

NOTE: Colored codes can be read as long as the contrast, as indicated inthe following table, is sufficient. Multi-colored codes (codes with bars ofdiffering colors) can not be read.

Print color for bars Color of background

Black (best) White (best), beige, muted yellow, muted orange, muted red or pink

Dark green White (best), beige, muted yellow, muted orange, muted red or pink

Dark blue White (best), beige, muted yellow, muted orange, muted red or pink

White Black or silver

Printing Considerations

Ensuring a High Quality Substrate Follow these guidelines to ensure that the substrate not does impair theperformance of the Accubar system:

� Avoid printing the code on a flap that has score marks.

� Avoid printing the code where there is sanding.

� Ensure that the flap selected for printing the code has no othercodes on it, such as a lot code or a date code.



Achieving the Required Print Quality In general, the performance of the Accubar system increases with thequality of the printing, especially at higher line speeds. Bar codesymbologies with a low print tolerance require a higher quality printingmethod than those with a high print tolerance. The following table providesa guide to the print quality of some of the more common printing methods.

Printing Method Comments

Phototypesetting � Offers the highest quality with the ability to print an X dimension assmall as 3 mils

� Printing costs are higher than other methods of printing and theprinting must be done off-site.

Offset printing � Widely used off-site printing method offering excellent quality

� Can produce bar codes with X dimensions of 8−10 mils

Thermalprinter/thermal-transferprinter

� On-site printing method capable of producing excellent quality,especially with higher resolution printers and lower operating speeds

� Offers cost effective printing but can print codes only in the picketfence orientation

Flexography � Off-site printing method that can produce bar codes with Xdimensions of 20 mils or more

� On quality substrates, flexography can print codes as small as 10 mils

Laser printer � Acceptable quality is possible with high resolution printers.

� Provides a cost effective method for computer-controlled on-siteprinting

Ink-jet printer � Acceptable quality is possible with high resolution printers.

� Provides a cost effective method for computer-controlled on-siteprinting

Matrix printer � On-site method with the lowest quality

� Can produce an X dimension of 20 mils but only with higher resolutionprinters and careful maintenance

NOTE: Proper maintenance is key for on-site printing. Make frequentchecks for quality, including spots and voids, whether printing is doneon-site or off-site.

NOTE: Some printing problems become apparent only at higher linespeeds.

NOTE: The dies on the edge of a sheet of dies typically do not have thecodes printed as well as the codes near the middle of the sheet.

EC Declaration of Conformityfor Adhesive and Sealant Application Equipment

conforming to European Council Directives

PRODUCT:


APPLICABLE DIRECTIVES:

Low Voltage Directive: 2006/95/ECElectromagnetic Compatibility Directive: 2004/108/EC

STANDARDS USED TO VERIFY COMPLIANCE:

EN 60950EN 61000-6-2EN 61000-6-4

PRINCIPLES:

This product has been manufactured according to good engineering practice.

The product specified conforms to the directives and standards described above.

Technical File Contact:

Dieter Ziesmer

Nordson Engineering GmbH

Lilienthalstrasse 6

21337 Lueneburg

GERMANY

Date: 10/June/2010

Peter Lambert, Vice PresidentAdhesives Dispensing Systems

DOC027R5

Nordson Corporation � 28601 Clemens Road � Westlake, Ohio

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