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Troubleshooting and Maintenance

6–7

3. Remove the six #6-32 screws from the bezel/window assembly.

4. Carefully pull bezel/window assembly away from the front of the

Reader.

5. Discard the old bezel/window assembly.

To install the replacement scan window:

1. Do not smudge the window when removing the bezel/window

assembly from package. If necessary, refer to page 6–5 for
cleaning instructions.

2. Place the bezel/window assembly against the front of the Reader

(with wider side at top of Reader), aligning the 6 screw holes with
the 6 holes on the Reader body.

Top of

Scan Window

3. Tighten the six #6-32 screws to a torque of 10 inch–pounds (1.1

m) in a side-to-side sequence providing even compression of

the sealing gasket.

4. Refer earlier chapters in this manual to install, align and verify

operation of the Reader before resuming full service of Reader.
Observe all warnings and cautions.

Содержание Allen-Bradley 2755-SN3

Страница 1: ...User Manual AdaptaScan Bar Code Readers Cat No 2755 SN3 SN5 SN8 Allen Bradley...

Страница 2: ...ents associated with any particular installation the Allen Bradley Company cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by...

Страница 3: ...ent 1 4 Typical Applications 1 5 Standalone 1 5 Distributed Master Slave DH 485 1 6 Distributed Peer to Peer 1 7 Scanning Modes 1 8 Linear Mode 1 8 Raster Mode 1 8 Wiring Base 1 9 DeviceNet Power Term...

Страница 4: ...ble Beam Width Catalog No 2755 SN5 2 5 Usable Beam Width Catalog No 2755 SN8 2 5 Apparent Element Width 2 6 Reader Adjustments 2 7 Read Ranges 2 8 Chapter 3 Chapter Objectives 3 1 General Mounting Gui...

Страница 5: ...O Modules and Wiring 3 19 Output Module Application 3 20 Input Module Application 3 21 Package Detector 3 22 Chapter 4 Chapter Objectives 4 1 Installation 4 1 Power up Sequence 4 2 Checking Reader Ope...

Страница 6: ...pendix A Electrical A 1 Mechanical A 1 Environment A 1 Optical A 2 Output Modules A 2 Input Modules A 2 Appendix B Appendix C Glossary Index Specifications DIN Rail Mount Terminal Blocks European Unio...

Страница 7: ...lation Considerations Describes the factors that determine the optimum placement of the Reader 3 Installing the Wiring Base and Power Supply Describes how to mount and wire the Reader wiring base 4 In...

Страница 8: ...publications related to the AdaptaScan Bar Code Reader Publication Number Description 2755 838 AdaptaScan Software User Manual 1485 6 7 1 DeviceNet Cable System Planning and Installation Manual 1770 6...

Страница 9: ...note the following changes in the Series B versions New programming port connector programming cable and dust cap Soft start power circuit reduces the current inrush when power is supplied This allow...

Страница 10: ...rsonal Computer For Configuration and Setup To Network or Control Device Package Detector Wiring Base Reader The Reader is configured using the AdaptaScan Software Catalog No 2755 ASN and configuratio...

Страница 11: ...755 SN8 800 18 30 Usable scan angle is 80 of the optical scan angle Scan Window The replaceable scan window allows laser light to exit the Reader Light reflects off the bar code symbol passes back thr...

Страница 12: ...On Off Scan beam off Yellow Scanning and decoding bar code symbol On Symbol Flashing Bar code symbol read at less than 100 rate On Symbol Off Not scanning bar code symbol Yellow Package detected Trigg...

Страница 13: ...on the side of a package moving down a conveyor The package crosses the beam between the package detector and reflector The Reader scans and decodes bar code symbols on the package You can configure...

Страница 14: ...ndividually sent to a controller The discrete I O on each Reader provide distributed control independent of the PLC monitoring the process Controller Reader identifies major sub assemblies for routing...

Страница 15: ...gather data from other Readers over a DeviceNet network The Reader then transfers the collected data to a host such as a controller over an RS 232 link Readers through transfer data over a DeviceNet...

Страница 16: ...e the scan line elevation can be be adjusted Raster Mode Raster Upper and lower raster limits are adjustable Raster increment is adjust able Increment increases decreases the number of scan lines in t...

Страница 17: ...RS 232 Communication Terminal Block RS 422 RS 485 Communication Terminal Block Reader Connector Power Polarity LED Indicator Communication Termination Switches DeviceNet Power Terminal Blocks The wir...

Страница 18: ...inal Blocks Wiring connections for the optional input or output modules Package Detect Terminal Block Connects the contacts of a sensor which detects the presence of a package in the Reader s scan are...

Страница 19: ...nected together These Readers can work in a coordinated mode to read multiple bar code symbols on different sides of the same package combine data from several Readers to a single Reader that communic...

Страница 20: ...and slave modes are supported As a master device the Reader sends data directly to an SLC 5 03 or 5 04 processor s data table no polling is required by the SLC As a slave device the Reader connects t...

Страница 21: ...features of ANSI X3 28 1976 specification subcategories D1 data transparency and F1 two way simultaneous transmission with embedded responses Allen Bradley DH485 A network protocol that allows DH485...

Страница 22: ...de coded Also configures the intersymbol timer and performance indicator Define the operation for package detector discrete inputs discrete out puts timer and ASCII trigger commands Define communicat...

Страница 23: ...e tune the focus setting for a maximum read percentage Preset Four preset read ranges A B C C correspond approximately to bar code scanners Catalog No 2755 LD4 LD8 allowing for easy replacement of the...

Страница 24: ...f the data System Monitoring The software monitors a Reader on the network Use this feature for initial setup and adjustment Online Adjustments Make online adjustments to one or more Readers on a Devi...

Страница 25: ...rectly into the beam Momentary exposure to a CDRH Class II laser product is not known to be harmful The following shows the location of all safety labels as they appear on the Reader ATTENTION Use of...

Страница 26: ...mputer for creating configurations for AdaptaScan Bar Code Readers 2755 ASN Window Kits Replacement scan window kit includes window bezel gasket assembly along with mounting screws and instructions Pl...

Страница 27: ...t Fence or Step Ladder Orientation 2 2 Skew Pitch and Tilt 2 3 Usable Beam Width 2 4 Apparent Element Width 2 6 Reader Adjustments 2 7 Read Ranges 2 8 Calculating Scans per Label 2 9 The mounting of t...

Страница 28: ...r Reader Mounted On Side of Conveyor Reader Mounted Above Conveyor Reader Mounted On Side of Conveyor When the labels pass the Reader in a step ladder orienta tion a linear scan is preferred The beam...

Страница 29: ...er so that the scan beam is nearly perpendicular to the bars of the symbol and crosses every element and quite zone With raster scanning the scan beam should cover the entire area where a label is exp...

Страница 30: ...to determine the position of the Reader This allows you to increase or decrease the scan angle after installation Maximum Usable Beam Width Catalog No 2755 SN3 70 inches 1 78 meter 65 inches 1 65 mete...

Страница 31: ...inches 46 meter 25 5 inches 65 meter 21 8 inches 55 meter 14 6 inches 37 meter 10 9 inches 28 meter 7 3 inches 18 meter Maximum Usable Beam Width Catalog No 2755 SN8 70 inches 1 78 meter 65 inches 1...

Страница 32: ...ement width is calculated using Apparent Element Width Actual Element Width x Cosine Pitch Angle For example two boxes are scanned at a 0 and 30 pitch An enlarged area of 5 elements 3 black 2 white ar...

Страница 33: ...18_ to 30_ Usable scan angle is 80 of the optical scan angle Contact your Allen Bradley representative for availability Elevation linear scanning only adjusts the vertical angle at which the scan bea...

Страница 34: ...2 4 51 5 3 4 56 9 3 9 61 9 4 4 67 9 5 4 71 6 048 119 048 185 048 226 036 356 036 495 048 554 048 754 061 919 061 1 08 061 1 31 086 1 44 099 1 57 112 1 72 137 1 82 Table 2 C Read Ranges Catalog No 2755...

Страница 35: ...A A x H Z Z x 5 H Z 5 X Y x Where A Derated Scan Rate Nominal Scan Rate 5 285 SPS for Catalog No 2755 SN3 Readers 475 SPS for Catalog No 2755 SN5 Readers 760 SPS for Catalog No 2755 SN8 Readers H Hei...

Страница 36: ...ances for wiring The wiring base has four conduit openings Seal unused conduit openings with the 3 hole plugs provided with wiring base Use cord grips with rubber grommets on cables that enter wiring...

Страница 37: ...nd the Reader for Mounting and removing the Reader Wiring base connections Configuration cable Reader Front View Midpoint Scan Line Side View Back View 7 14 Inches 182 mm 3 95 Inches 100 mm 3 57 Inche...

Страница 38: ...ntical for both versions Differences are in the thread sizes of the conduit holes and the bottom mounting holes Front View End View Bottom View 3 87 Inches 98 mm 1 67 Inches 42 mm 5 36 Inches 137 mm 3...

Страница 39: ...with three 10 or M5 mounting screws The screw heads must be less than 3 8 inch in diameter allowing them to fit inside the mounting hole The length of the mounting screws must be 1 2 inch 12 5 mm plus...

Страница 40: ...es A full size mounting template is provided with the wiring base Use the following diagram for reference 4 46 Inches 113 mm 2 65 Inches 67 mm 2 79 Inches 71 mm Scan Beam 3 Holes 6 inch 15 mm deep Thr...

Страница 41: ...23 DeviceNet Use Allen Bradley Catalog No 1485C P1A50 P1A150 or P1A300 50 150 or 300 meter cable Package Detect 22 AWG minimum DeviceNet cable contains wiring for power connections Cabling Where the c...

Страница 42: ...ngs to maintain the NEMA Type 4 rating U S Wiring Base Catalog No 2755 NB40 The conduit opening for the U S wiring base uses a NPSC threaded plug Use Teflon tape or other thread sealant when inserting...

Страница 43: ...l the safety wire when the bracket is mounted in an inverted position If the bracket is mounted inverted and the locking knob is loosened the Reader could release from the bracket and cause personal i...

Страница 44: ...ion by tightening the locking knob For additional security you can remove the locking knob and replace it with the hex bolt provided The two hex socket screws are not used in this configuration Mounti...

Страница 45: ...front back or either side of the mounting plate Lock the mounting post in position by tightening the locking knob For additional security you can remove the locking knob and replace it with the hex b...

Страница 46: ...when the bracket locking knob is loosened Attaches to Mounting Plate Screw Loosen Locking Knob to Remove Clamping Nut Safety Wire Clamping Nut Place one end of the safety wire under a mounting bracke...

Страница 47: ...st correct a reverse polarity condition before installing the Reader Two power supplies are available for the AdaptaScan Reader 120 VAC Power Supply Catalog No 2755 PW46 plugs directly into a standard...

Страница 48: ...itable enclosure Connections to the power supply are made at the 3 screw terminals 2 75 Inches 70mm 3 25 Inches 83 mm Catalog No 2755 PW47 Power Supply The 240 VAC power supply Catalog No 2755 PW47 pr...

Страница 49: ...Reader V 24V Ground Screw on Wiring Base Multiple Reader Connections using 2755 PW46 PW47 Supply In the following illustration each Reader is powered by a separate Catalog No 2755 PW46 or PW47 power...

Страница 50: ...ply Below all Readers are powered by another power supply Use a linear unregulated power supply The supply must provide 14 watts of power to each reader Use a shielded cable Belden 9316 recommended wh...

Страница 51: ...d on a DeviceNet peer to peer network Reader Other Devices Reader Reader Both DeviceNet terminal blocks are tied to each other You can connect the wiring to either terminal block Use cabling Catalog N...

Страница 52: ...85 or RS 422 communications One of the more common RS 485 network types is an SLC DH485 network SLC 5 04 Link Coupler DH485 DH485 Reader Reader Use the link coupler Catalog No 1747 AIC when the distan...

Страница 53: ...se the RS 232 port for a direct connection to a controller personal computer or other device that supports one of the protocols terminal Allen Bradley DF1 Allen Bradley DH485 Reader RS 232 connections...

Страница 54: ...ated at 3 to 60 VDC 2755 OB5S AC Output Module rated at 12 to 140 VAC 2755 OA5S AC Output Module rated at 24 to 280 VAC 2755 OM5S DC Input Module accepts 3 3 to 32 VDC 2755 IB5S AC DC Input Module acc...

Страница 55: ...minimum current flow 10 mA DC or 50 mA AC through the output module in the closed state See Appendix C for available Allen Bradley fuse diode and resistor terminal blocks AC or DC Source Optional Res...

Страница 56: ...sible See Appendix B for available Allen Bradley fuse diode and resistor terminal blocks Internal Power Source A typical input module application using the package detect 12V internal power source and...

Страница 57: ...ckage detector must be able to operate using the 12V DC source 12V and not draw more than 100mA The package detect sense line TRG must be able to sink 5mA at 12V DC Follow these guidelines when instal...

Страница 58: ...detector configuration Package Detector Reflector Connect the package detect wiring to the wiring base as shown Note If you are using a sensor with mechanical contacts refer to page 3 21 for wiring c...

Страница 59: ...ws 4 Locations Tighten to 18 inch pounds 2 0 NSm Wiring Base Insulating Cover 1 Make sure the insulating cover with warning label attached is in position so the flap covers the field wiring connection...

Страница 60: ...in Scanner dialog If the initial Reader configuration has been changed you must enable the Code 39 symbology and the other parameters above Refer to the AdaptaScan Software user manual To quickly chec...

Страница 61: ...the Reader with the connector on the wiring base and pressing the the Reader down firmly 4 Tighten the four screws that secure the Reader to the wiring base to 18 inch pounds 2 0 NSm 5 Set a unique De...

Страница 62: ...the Configuration Cable Catalog No 2755 NC48 to connect the computer to a Reader One cable end connects to the Configuration Port Connector on the Reader Connect the end with the 9 pin D shell connect...

Страница 63: ...may be required 9 Pin Male D Connector 4 Pin Female Circular Connector Configuration Port Connector Has a protective cap Note The Series A Reader uses the 2755 NC43 programming cable This cable is not...

Страница 64: ...Code Reader by clicking the New button on the project dialog Verify that the DeviceNet address matches the address currently used by the Reader If downloading firmware to a new Reader check that the D...

Страница 65: ...a unique DeviceNet address even if you are not using DeviceNet communications With the Reader name highlighted click the Device button to open the Device dialog and set the address Set to Unique Addre...

Страница 66: ...additional information on operating the AdaptaScan Reader Configuration Software or accessories contact your local Allen Bradley support office or Allen Bradley Technical Support at 216 646 6800 Other...

Страница 67: ...cation After making changes SEND the configuration and try again 3 Use good quality labels that are within specifications 4 Reposition the scan line 5 Use autofocus to adjust the read range Use the ON...

Страница 68: ...r code symbol is being read at less than 100 rate Off Not reading bar code symbol Trigger Read Condition Indication Yellow Decoder trigger is active Green Valid bar code symbol read Off No trigger or...

Страница 69: ...perform all configured functions Off No DeviceNet communications established Laser On Condition Indication Yellow The scan beam is On active Off The scan beam is Off inactive Module Condition Indicat...

Страница 70: ...ATTENTION Do not attempt to clean the window while the Reader is turned on Although momentary exposure to the laser light is not harmful precautions should be taken to avoid looking into the beam 2 V...

Страница 71: ...window 2755 NW44 Replacement Plastic Window Kit Includes bezel window assembly with hard coated anti reflec tive optical quality plastic window Figure 6 2 Scan Window Removal Replacement 6 32 Bezel Sc...

Страница 72: ...ary refer to page 6 5 for cleaning instructions 2 Place the bezel window assembly against the front of the Reader with wider side at top of Reader aligning the 6 screw holes with the 6 holes on the Re...

Страница 73: ...reen Yellow Yellow Green Red Yellow Green Red Approximate Weight Reader and Wiring Base 4 6 lbs 2 1 kg Dimensions Inches Millimeters 5 58 H x 7 14 W x 3 95 D 142 H x 182 W x 100 D Shock 30G operating...

Страница 74: ...oltage 60 VDC 400 V peak 600 V peak Maximum Peak Off State Leakage 1 0 mA 2 5 mA RMS 4 5 mA RMS Static off state dv dt 200 V usec 200 V usec Maximum On State Current 0 5 A DC 0 5 A RMS 0 5 A RMS Minim...

Страница 75: ...LISTED UL Listed UL Listed to Canadian safety standards European Union Directive Electromagnetic Compatibility Directive 89 336 EEC EN 50081 2 Generic Emission Standard Industrial Environment EN 50082...

Страница 76: ...sistor 1 Tol 1 4 Watt 1492 WD4RBxxx 250V 4 terminal internal wire wound fixed resistor 1 Tol 1 2 Watt 1492 WD4RAxxx 250V 4 terminal internal Carbon fixed resistor 5 Tol 1 2 Watt 1492 HM2RAxxx 300V 4 t...

Страница 77: ...al commercial and light industrial is given in Clause 1 of EN50081 2 as follows Apparatus covered by this standard is not intended for connection to a public main network but is intended to be connect...

Страница 78: ...European Union Directive Compliance C 2 Declaration of Conformity...

Страница 79: ...untary industry standards in the United States application A use to which something is put or how it is used APM Protocol Acronym for Application Protocol Messages A protocol used by system integrator...

Страница 80: ...ol A group of bars that represent a character or group of characters whose width and spacing is determined by a set of rules In most cases human readable characters are printed below the bars bar heig...

Страница 81: ...uce a valid character character set Those characters available for encodation in a particular automatic identification technology check character A character included within a symbol whose value is us...

Страница 82: ...stem the electronic package which receives the signals from the scanner performs the algorithm to interpret the signals into meaningful data and provides the interface to other devices density The num...

Страница 83: ...malfunction that interferes with normal system operation G guard bars 1 The bars at the ends and center of a UPC and EAN symbol that ensure a complete scan of the bar code 2 The optional bars outside...

Страница 84: ...coded data matches data in the match entry match entry An output condition in which decoded data matches and the data in a match entry configuration message 1 A meaningful combination of alphanumeric...

Страница 85: ...Failure multi drop link 1 A link that has more than 2 stations 2 Contrasted with point to point link N NAK Negative acknowledgement An ASCII control character transmitted by a receiver as a negative r...

Страница 86: ...erformance indicator A bar code decoder function that counts the number of decodes during a trigger period When the period 0 the performance indicator provides the number of decodes up to 100 attempts...

Страница 87: ...a point to point link RS 422 An EIA standard that specifies electrical characteristics of balanced voltage digital interface circuits in a point to point link RS 485 An EIA standard that specified ele...

Страница 88: ...ut how the code is bounded and its orientation The start character is normally at the left end of a horizontal code and adjacent to the most significant character The stop character is normally at the...

Страница 89: ...Code 128 T tag A collection of information associated with a single variable or I O point two width symbology A bar code symbology whose bar and spaces are characterized simply as wide or narrow Codab...

Страница 90: ...Glossary G 12 X X dimension The nominal dimension of the narrow bars and spaces in a bar code symbol...

Страница 91: ...485 protocol 1 13 DH 485 protocol 1 13 Dimensions Reader 3 2 wiring base 3 3 Downloading a Reader configuration 5 4 configuration cable 5 1 connecting computer 5 1 firmware 5 3 E European Union Direc...

Страница 92: ...18 read ranges 2 8 safety labels 1 17 scan beam 2 1 scan speeds 1 3 scan window 1 3 wiring base 1 9 wiring base connector 1 4 Reader connector 1 10 Related Publications P 2 RS 232 communications 1 13...

Страница 93: ...Power Terminal Block 1 9 dimensions 3 3 dust cover 3 5 hole plugs 3 7 I O module sockets 1 10 I O module terminal blocks 1 10 mounting guidelines 3 1 Reader connector 1 10 package detect terminal bloc...

Страница 94: ...5 HIGH DENSITY LOW DENSITY MEDIUM DENSITY Universal Product Code VERSION A VERSION E European Article Number EAN 13 EAN 8 Pharma Code N B W 0 0 7 5 N B W 0 2 0 N B W 0 3 0 NBW 0 0 7 5 N B W 0 2 0 N B...

Страница 95: ...PART NO P QUANTITY Q SUPPLIER V SERIAL S 27842 9106 0 0 0 1 2 3 4 5 6 7 8 9 0 5 9 00 38200 11413 8...

Страница 96: ...n Jordan Korea Kuwait Lebanon Macau Malaysia Malta Mexico Morocco The Netherlands New Zealand Nigeria Norway Oman Pakistan Panama Peru Philippines Poland Portugal Puerto Rico Qatar Romania Russia Saud...

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