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Eriez E-Z TEC IV, Инструкции по установке, эксплуатации и обслуживанию

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12

Principle of Operation

The E-Z Tec IV/V Metal Detector uses a
differential transformer to detect pieces of metal.
Three coils encircle the detection aperture. The
signal voltage in the primary coil is driven by an
oscillator. Two secondary coils, on a common axis
with the primary,  are coupled into the field of the
primary coil in such a manner that the system is
in balance and the induced voltages in the two
secondary coils cancel.

A piece of metal introduced into the detection
aperture will distort the primary field and cause a
difference in induced voltages in the two secondary
coils. This voltage difference constitutes a signal

that is amplified and manipulated to extract the
amplitude and phase angle with respect to the
oscillator input signal. This information is used to
decide whether the signal represents metal or the
user’s product. If it represents the user’s product it
is ignored. If it represents metal, and if the signal
exceeds a pre-set level, the metal detector
generates a detection signal. The detection signal
is manipulated to provide various timing functions
for creating reject actions.

Figures 3 and 4 illustrate conveyor installations
of E-Z Tec analog and MPC metal detectors
respectively.

Separation of Power and Signal Wiring

This information is being distributed to
assemblers and electricians about the importance
of proper methods for wiring of controls.  These
methods are revised and updated from time to
time as we (Eriez Magnetics) perceive necessary.
This information will cover distances from various
categories of cables and Eriez Metal Detector
wiring standards.  The cable categories are:

1.

AC power cables

2.

DC distribution (thermocouple, power supplies)

3.

Signal and Logic
a. Analog (low level)
b. Digital logic

Category 1 cables are to be routed along frame
members and panels.  Avoid open space hanging.

Category 2 cables are routed as in Category 1
but separate from 1.

Category 3 cables are routed separately from
Categories 1 and 2.  Category 3b cables are to
be spaced 25 cm (1") from Category 1 for each
meter of run.

Use separate machine entry holes for category
1, 2 and 3 cables.

When Eriez Metal Detectors are being installed
in plants using VFC drives, the following
precautions are recommended:

1.

Route VFC wiring and Eriez Metal Detector

wiring in to separate metallic conduits.

2.

Separate power sources should be used for

VFC drive and Eriez Metal Detectors.

3.

The use of a Harmonic Neutralized Constant

Voltage Transformer for the Eriez Metal De-
tector power is recommended.  Use separate
conduits for in and out wiring.

4.

Twist AC common circuit run wires tegether to

minimize electromagnetic field interference.

5.

Follow cable category separations as detailed

above.

Содержание E-Z TEC IV

Страница 1: ...Instructions ERIEZ MAGNETICS HEADQUARTERS 2200 ASBURY ROAD P O BOX 10608 ERIE PA 16514 0608 U S A WORLD AUTHORITY IN ADVANCED TECHNOLOGY FOR MAGNETIC VIBRATORY and METAL DETECTION APPLICATIONS MM 235...

Страница 2: ...or E Z Tec Metal Detector assistance 2005 ERIEZ MAGNETICS ALL RIGHTS RESERVED CAUTION ELECTROMAGNETIC FIELDS Metal Detectors emit electromagnetic fields Contact the American Conference of Governmental...

Страница 3: ...BY HAND IF POSSIBLE or by using a crane and soft nylon slings running under the entire detector housing NOT THROUGH THE APERTURE Block the slings to prevent rubbing on the remainder of the detector ho...

Страница 4: ...16 Metal Free Area 17 Electrical Current Loops 17 Insulating the Conveyor Shafts 17 Permanent Loops 18 Mounting Base 18 Belt Splices 19 Conveyor Slider Bed 19 Product Position 19 Reject Proximity Swit...

Страница 5: ...g Unit 23 Initial Test MPC Unit 24 ANALOG CONTROLS AND DISPLAYS 25 Large Rectangular Status LED S 25 Detect Red 25 Fault Yellow 25 Monitor Display 25 Sensitivity Control 25 Phase Control 25 Analog Out...

Страница 6: ...g 27 SW1 1 27 SW1 2 27 SW1 3 through SW1 8 27 SW1 9 27 SW2 1 27 SW2 2 27 SW2 3 27 SW2 4 27 JP1 28 JP2 28 JP3 28 Switch Charts 28 MPC CONTROLS AND DISPLAYS 30 MPC Control Panel 30 LED Bar Graph 30 Swit...

Страница 7: ...ivity 33 Detect Mode 33 Phase 33 Gain 33 Filter 33 Configure Rejects 34 Detailed MPC Menu Description cont 34 Product Description 34 Auto Phase 34 Reject Setup 34 Detect On Power Up 34 Timed Reject 34...

Страница 8: ...og Adjustment Procedure 42 Phasing Out the Product Effect Analog Units 42 Reject Adjustment Analog Units 43 Direct Reject 43 Timed Reject 44 Timed Reject Index Device Not Used 45 Timed Reject Index De...

Страница 9: ...77 Parity 77 Transmit Mode 77 End Line With 78 Baud Rate 78 Printing Options 78 Printing A Single Report 78 Printing Multiple Reports 78 Operating Instructions 78 Configuring Printer Cable 78 Setting...

Страница 10: ...cal 83 Electrical 84 APPENDIX D SLIM TEC SINGLE SURFACE UNITS 86 Introduction 86 Mechanical 86 Electrical 87 APPENDIX E SLIM TEC APERTURE UNITS 90 Introduction 90 Mechanical 90 Electrical 91 APPENDIX...

Страница 11: ...ents may be more stringent or a centrally controlled network of detectors is required Eriez provides the MPC versions of the E Z Tec IV and V General This manual covers both the analog and MPC version...

Страница 12: ...lWiring This information is being distributed to assemblers and electricians about the importance of proper methods for wiring of controls These methods are revised and updated from time to time as we...

Страница 13: ...k 1 mA min Frequency 50 Hz max maximum Minimum Pulse Width Logic 0 5 mSec Logic 1 5 mSec REJECT CONFIRMATION INPUT Voltage Logic 0 0 0 VDC to 0 9 VDC Logic 1 3 15 to 50 VDC NPN Open Collector can also...

Страница 14: ...wed to stabilize long enough to allow drying of moisture which may have ac cumulated on the electronic components over night is recommended DO NOT APPLY POWER UNTIL ELECTRONIC CIRCUITRY IS COMPLETELY...

Страница 15: ...mined length of time and reset The noise signals in Figure 5 B would be ignored because they are unipolar In general Mode 2 detection may be somewhat less sensitive than Mode 1 detection Also Mode 2 d...

Страница 16: ...ing head 2 the control including the MPC in MPC versions if it is not part of the sensing head and 3 the power supply which may be integral with the sensinghead and or this control See Figure 6 The se...

Страница 17: ...d aerial view of a typical metal detector and conveyor The arrows located within the conveyor framework head pulley tail pulley and return idlers represent electrical currents The bearings supporting...

Страница 18: ...not permissible Any conduction path which is to remain removable or is simply not weldable must be insulated from the conveyor frame Figure 11 shows the modified conveyor frame Note the potential swit...

Страница 19: ...ector This task is performed by a slider bed which must be capable of holding the belt off the aperture liner even when fully loaded The slider bed must not contact the metal detector aperture liner I...

Страница 20: ...ge selection switch is in the proper position to accept the power supply The voltage selection switch is shown in Figure 14 and is labeled SW2 on the circuit board Electrical Installation CAUTION Be c...

Страница 21: ...ontacts to open After the fault clears the relay is again energized switching it back to its original position AC SSR The AC SSR is a solid state relay suitable for switching AC loads only It function...

Страница 22: ...o scan and automatically reject packages A proximity switch is used to sense the location of the package so it can be rejected reliably The device can be a mechanical switch photo eye or any other dev...

Страница 23: ...must be electrically insulated from the associated components of the metal detector such as conveyor stand or any other support structure Metallic conduit fittings must not be used to attach conduit...

Страница 24: ...hould ap pear on the LCD screen showing time date SENSITIVITY and PHASE Electrical Installation cont b Pass a large piece of metal through the metal detector aperture The LED bar graph should respond...

Страница 25: ...rol panel of the E Z Tec Version IV and V analog metal detector This panel is located in the power supply housing The controls and switches on this panel are primarily concerned with the rejection per...

Страница 26: ...not installed DIRECT The DIRECT LED is illuminated when the metal detector is operating properly and no metal is detected As soon as the metal is detected the DIRECT LED turns off to indicate that th...

Страница 27: ...Refer to the SWITCH CHART for switch settings and shift register length Refer to Appendix B for a discussion of the Shift Register function SW1 9 When this switch is set to the UP position the DIRECT...

Страница 28: ...ock SW2 4 UP SSR output is normally closed DOWN SSR output is normally open JP1 ON Not always space between packages OFF Always space between packages JP2 ON Travel time 0 30sec 50sec 10sec OFF Travel...

Страница 29: ...U 42 D U D U D U 11 U U D U D D 43 D U D U D D 12 U U D D U U 44 D U D D U U 13 U U D D U D 45 D U D D U D 14 U U D D D U 46 D U D D D U 15 U U D D D D 47 D U D D D D 16 U D U U U U 48 D D U U U U 17...

Страница 30: ...utines A good general understanding of the procedures and parameters are all that should be required to adjust the MPC FLOWCHART Figure 19 is a flowchart representing the structure of the portion of t...

Страница 31: ...ineer password provides access to all parameters MPC Controls and Displays cont Each password consists of a four character alphanumeric code At the time of manufacture the following passwords are stor...

Страница 32: ...lity As a result many variablesexistwhichmustbeadjustedbytheoperator There are three major types of variable 1 Numerical 2 ON OFF 3 AUTO MANUAL All of the variable types are adjusted in the same manne...

Страница 33: ...eys are used to increase or decrease the numerical value of the variable Sensitivity This adjustment increases or decreases the metal detector s ability to detect metal The adjustment range is 00 to 9...

Страница 34: ...product from being rejected However if metal actually does exist in the product stream during this period it will be missed Since power up occurs anytime power is removed and reapplied to the unit eve...

Страница 35: ...he switch is positioned in such a way that it closes as the pusher bar reaches its maximum extension If reject confirmation is needed set the variable to YES otherwise set it to NO More informa tion o...

Страница 36: ...will return to PRODUCT SETUP If at any time during the Product Description modification it is desired to retrieve the original description press the CANCEL key This will retain the original descriptio...

Страница 37: ...generated no matter how many pieces of metal pass through the metal detector before the Direct Reject is reset since only a single Direct Reject has occurred The three most recent detections are displ...

Страница 38: ...orily it is probably reliable and can be used normally The Balance Fault warning however may be the early warning of an eventual failure Thus Eriez Magnetics should be consulted to aid in determining...

Страница 39: ...in increasing order OPERATOR SUPERVISOR and ENGINEER All can be changed as follows 1 Align the cursor to PASSWORDS in the OP TIONS menu and press GO TO 2 The MPC will respond by asking for a pass wor...

Страница 40: ...ur if the test passes If the test fails the detection does not occur and a Self Check fault is generated and listed in the FAULT menu In addition the Fault relay is enabled and FAULT is listed in the...

Страница 41: ...time the Fault relay will be enabled and a Calibration Check fault will be listed in the FAULT menu The Calibration Check Fault will reset when the Passed variable is set to YES It is important to no...

Страница 42: ...etal detector system operated PHASING OUT THE PRODUCT EFFECT ANALOG UNITS Some products are conductive or magnetic in nature and can produce a signal when passing through the metal detector This signa...

Страница 43: ...two separate reject timers that run in parallel DIRECT REJECT and TIMED REJECT The output signals of these two timers appear at the terminals labeled DIRECT RELAY and TIMED RELAY respectively on the P...

Страница 44: ...s step a number of times until a you are convinced that contaminated product will be rejected reliably at this Direct Reject time setting or b at least one contaminated item has been missed because th...

Страница 45: ...e of product If product changes often an E Z Tec IV or V MPC Metal Detector with the ability to store multiple reject settings may be a good investment 2 For setup use the smallest size tramp metal wh...

Страница 46: ...duct 4 In the case of a larger discrete product such as boxes of sugar it is usually best to use the Indexed Reject mode see Timed Reject In dex Device Used below If an index device is not to be used...

Страница 47: ...ired to reject a single package For example if a box of sugar is rejected off a conveyor using a pusher arm set the Reject Time to the length of time required for the arm to fully extend Do not adjust...

Страница 48: ...application The factory value should be used almost invariably If the product speed is changed the Filter setting will probably need to be adjusted also Consult with Eriez Magnetics for guidance 6 Ad...

Страница 49: ...sitivity adjustment of approximately 90 to detect the required tramp metal This will provide much greater Sensitivity adjustment resolution and provide better overall metal detector performance Go to...

Страница 50: ...al detector may be very sensitive to vibration In this case Sensitivity and or Gain may need to be decreased The phase adjustment is now complete Please refer back to Step 8 to adjust the sensitivity...

Страница 51: ...uct to a minimum If Auto Reset is set to YES the reject will reset automatically when the Reject Time times out If it is set to NO the reject will remain on indefinitely until manually reset TIMED REJ...

Страница 52: ...imes on the line where the metal detector is installed then the adjustment pa rameters for each product should be stored in the MPC separately under different product numbers 2 Use the smallest size t...

Страница 53: ...entered into the MPC as seconds Vari able speed applications require a tachometer input to accurately adjust Travel Time and Window In this case Travel Time and Window are numbers rep resenting the nu...

Страница 54: ...damage especially in the region of the aperture liner The unit should be kept clean and dry if possible Generally this is all that is necessary to keep the unit working at peak performance In the eve...

Страница 55: ...sing Head Electronics Round Cable for Remote Control units only Other lengths available contact Eriez 815160 1 Cable Ass y MPC to Sensing Head Electronics Flat cable for Integral Control units only 42...

Страница 56: ...56 Figures Figure 1 E Z Tec IV Analog Metal Detector E Z Tec V Analog Unit Is Similar Figure 2 E Z Tec IV MPC Metal Detector E Z Tec V MPC Unit Is Similar...

Страница 57: ...57 Figures cont Figure 3 E Z Tec Analog Metal Detector Installation Figure 4 E Z Tec MPC Metal Detector Installation...

Страница 58: ...58 Figures cont Figure 5 Detect Modes...

Страница 59: ...59 Figures cont Figure 6 E Z Tec Major Components Figure 7 E Z Tec Power Supply Analog Version Shown...

Страница 60: ...60 Figures cont Figure 8 Metal Free Area Figure 9 Typical Conveyor Showing Intermittent Current Loops...

Страница 61: ...61 Figures cont Figure 11 Typical Conveyor Intermittent Current Loops Removed Figure 10 Methods of Insulating Conveyor Shafts...

Страница 62: ...62 Figures cont Figure 12 Metal Detector Mounting Feet Figure 13 Conveyor Belt Splices...

Страница 63: ...63 Figures cont Figure 14 Electrical Connections...

Страница 64: ...64 Figures cont Figure 15 Analog Version Control Panel...

Страница 65: ...65 Figures cont Figure 16 Analog Version Output Control Panel Figure 17 Switch Locations on Analog Output Control Panel...

Страница 66: ...ING FAULT DIAGNOSTICS SELECT SELECT DOWN HELP UP CONTRAST CONTROL KEYS MONITOR LED BAR LIGHTS DEFLECT TO LEFT AND RIGHT DURING DETECT REJECT TIME TOUCH PAD MENUS OR DATA DISPLAY SCREEN NAVIGATION PROM...

Страница 67: ...67 Figures cont Figure 19 Flowchart of MPC Menu Structure...

Страница 68: ...enu HH MM SS ERIEZ MAGNETICS MM DD YY HEADQUARTERS EXIT 2200 ASBURY ROAD ERIE PA 16506 1440 USA SOFTWARE VERSION XXXXXX PLEASE WAIT HH MM SS MONITOR MM DD YY RESET REJECTS 01 PRODUCT DESCRIPTION SENSI...

Страница 69: ...1440 USA PHONE 814 835 6000 FAX 814 838 4960 SOFTWARE VERSION XXXXXX HH MM SS PRODUCT SETUP MM DD YY GO TO 01 PRODUCT DESCRIPTION EXIT SENSITIVITY CONFIGURE REJECTS DETECT MODE 0 PRODUCT DESCRIPTION...

Страница 70: ...DIRECT REJECT DETECT ON POWER UP SELECT SELECT DOWN INCR HELP DECR UP HH MM SS TIMED REJECT MM DD YY 01 PRODUCT DESCRIPTION EXIT TRAVEL TIME TACH INPUT REJECT TIME AUTO RESET REJECT CONFIRMATION SELE...

Страница 71: ...JECT MM DD YY 01 PRODUCT DESCRIPTION EXIT REJECT TIME AUTO RESET SELECT SELECT DOWN INCR HELP DECR UP HH MM SS PRODUCT DESCRIPTION MM DD YY BOTTOM EXIT THIS IS A PRODUCT DESCRIPTION 0123456789ABCDEFGH...

Страница 72: ...PROD TIME DATE PEAK mV SELECT SELECT DOWN INCR HELP DECR UP HH MM SS ERASE ALL REPORTS MM DD YY PRESS YES TO ERASE ALL REPORTS ALL REPORTS ARE PERMANENTLY ERASED THEY CANNOT BE RECOVERED PRESS NO TO E...

Страница 73: ...HH MM SS FAULT MM DD YY EXIT NO FAULT CONDITION CURRENTLY EXISTS HH MM SS FAULT MM DD YY EXIT BALANCE FAULT REJECT FAULT SELF CHECK FAULT CALIBRATION FAULT REFER TO IOM FOR DETAILS HH MM SS SETUP PRI...

Страница 74: ...MM SS SETUP COMMUNICATION MM DD YY EXIT DATA BITS BAUD RATE PARITY SERIAL ADDRESS SELECT SELECT DOWN INCR HELP DECR UP HH MM SS SET TIME DATE MM DD YY CANCEL START CLOCK MINUTES DAY HOURS MONTH YEAR...

Страница 75: ...T CURRENT PASSWORD XXXX 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_ ENTER LEFT HELP RIGHT HH MM SS PRINT OPTIONS MM DD YY GO TO EXIT PRINT ALL REPORTS CANCEL PRINT REPORTS REPORT PRINT SELECT SELECT DOWN IN...

Страница 76: ...MM SS SELF CHECK MM DD YY GO TO EXIT TEST DISABLED TEST NOW SKIP DETECT REJECT START TIME H M DELTA TIME H M SELECT SELECT DOWN INCR HELP DECR UP HH MM SS CALIBRATION CHECK MM DD YY EXIT TEST DISABLE...

Страница 77: ...ration MPC Only DETAILED DESCRIPTION CONNECTOR PINOUT Connections from the printer cable are made to the Power Supply PCB refer to Figure 14 The termi nal block is labeled PRINTER PORT as shown TXD Tr...

Страница 78: ...IONS menu the CANCEL PRINT REPORTS command clears the PRINT ALL REPORTS command If you select PRINT ALL REPORTS and a problem occurs which interferes with printer response for example the printer is o...

Страница 79: ...een will appear b In the PRINT OPTIONS menu use the SE LECT UP or SELECT DOWN key to move the cursor to REPORT PRINT Use the INCR or DECR key to switch the setting to MANUAL c Pressing the EXIT key wi...

Страница 80: ...er is out of paper or not turned on you may use CANCEL PRINT REPORTS to clear the PRINT ALL REPORTS command If CANCEL PRINT REPORTS is not used when a problem occurs all reports will be automatically...

Страница 81: ...ents An important factor to consider in the design of a tachometer system is the resolution of the separate digital pulses The MPC can store up to 1200 pulses Thus if the Travel Distance from the cent...

Страница 82: ...in ft 40 in sec Maximum tachometer pulse frequency is 40 in sec X 1 pulse 942 sec 42 5 pulses sec This is within specifications b Calculate the pulse width Since the ta chometer produces a square wave...

Страница 83: ...pports In either case it is impor tant that you support the unit on stable struc ture that is not subject to vibration from other equipment Appendix C Vertical Reject Units 2 Do not allow other pieces...

Страница 84: ...he ground connection point used for the anti static chute if any can also Appendix C cont Vertical Reject Units be used for the metal detector support but separate wires must be used for each 3 Power...

Страница 85: ...85 Appendix C cont Vertical Reject Units Figure C2 E Z Tec IV and V Vertical Reject Sensing Head...

Страница 86: ...vide pointers for obtaining the best performance from your single surface E Z Tec IV V However these sections are only Appendix D Slim Tec Single Surface Units supplementary to the material in the mai...

Страница 87: ...zone should be insulated from each other and from the metal detector support structure It may be impossible to ground these conduits at only one point Under these circum stances it may be necessary t...

Страница 88: ...88 Appendix D cont Slim Tec Single Surface Units Figure D1 E Z Tec IV and V SlimTec Single Surface Schematic...

Страница 89: ...89 Appendix D cont Slim Tec Single Surface Units Figure D2 E Z Tec IV and V SlimTec Single Surface Metal Free Area...

Страница 90: ...mance from your SlimTec aperture E Z Tec IV V However these sections are only Appendix E Slim Tec Aperture Units supplementary to the material in the main body of this manual which must be read and co...

Страница 91: ...zone should be insulated from each other and from the metal detector support structure It may be impossible to ground these conduits at only one point Under these circum stances it may be necessary t...

Страница 92: ...ic Appendix E cont Slim Tec Aperture Units 3 76 9 229 1 25 4 DIAMETER 1 12 28 4 25 108 5 127 MTG CNTRS 1 5 38 5 75 146 CLAMP BLOCKS SUPPLIED SENSING HEAD END VIEW GENERIC DIMENSIONS SENSING HEAD TOP V...

Страница 93: ...93 Figure E2 E Z Tec IV and V SlimTec Aperture Metal Free Area Appendix E cont Slim Tec Aperture Units...

Страница 94: ...ctions are only supplementary to the material in the main body of this manual which must be read and complied with for proper installation operation and maintenance of your VFS E Z Tec IV or V metal d...

Страница 95: ...ng ground using 12 AWG min wire See above for the definition of a building ground The ground connection point used for the anti static chute if any can also be used for the metal detector support but...

Страница 96: ...96 Appendix F cont VFS Packaging Machine Metal Detectors Figure F1 VFS Metal Detector Schematic...

Страница 97: ...97 Appendix F cont VFS Packaging Machine Metal Detectors Figure F1 VFS Metal Detector Metal Free Area...

Страница 98: ...98 This Page Intentionally Left Blank...

Страница 99: ...99 This Page Intentionally Left Blank...

Страница 100: ...S 2200 ASBURY ROAD P O BOX 10608 ERIE PA 16514 0608 U S A Telephone 814 835 6000 800 345 4946 Fax 814 838 4960 International Fax 814 833 3348 Web Site http www eriez com e mail eriez eriez com MANUFAC...

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