EddyvisorSC v01 En

Manual eddyvisor SC 29 May May 2008 2008 (v 01e) 01e) ibg Doc: 0713431e

Software and Manual Copyright 2008 by ibg Prüfcomputer GmbH, Pretzfelder Str. 27, D-91320 Ebermannstadt The copyright claimed claimed covers covers all forms and types of materials materials and information falling falling under the copyright, which at the present time are legally admitted or granted in the follo followi wing ng,, incl includ udin ing g mate materia riall gene genera rate ted d with withou outt restri restricti ction on from from the the softw software are progra programme mme appear appearing ing on the screen, screen, such such as symbol symbols, s, screen screen displa displays ys and the like.

Exclusion of responsibility Great care was taken in compiling texts and figures. Nevertheless, errors cannot be ruled out completely. Editors and authors cannot assume any legal responsibility or liability for erroneous information and resulting consequences. The editor will readily accept any proposals for improvement and hints at errors. The unit delivered delivered incorporates incorporates the latest state of the art. The manufacturer manufacturer declines any legal responsibil responsibility ity and liability liability for inspection inspections s carried out with the apparatus apparatus and for result resulting ing conseq consequen uences. ces. Success Successful ful implem implement entati ation on of an inspec inspectio tion n presupposes, in addition to the control of the unit setting, also a knowledge of the product to be tested, its material properties, of possible errors and their underlying causes. If these prerequisites are not satisfied, the result will be questionable. In order order to avoid avoid faulty faulty operati operation on and other other errors, errors, traini training ng in the manufa manufactu cturer' rer's s factory or by an independent training organisation is recommended.

registered trademark of ibg Prüfcomputer Prüfcomputer GmbH. eddyvisor ® is a registered HP and LaserJet are registered trademarks of Hewlett-Packard Corporation.

Trademarks are used without warranting free usability.

Software and Manual Copyright 2008 by ibg Prüfcomputer GmbH, Pretzfelder Str. 27, D-91320 Ebermannstadt The copyright claimed claimed covers covers all forms and types of materials materials and information falling falling under the copyright, which at the present time are legally admitted or granted in the follo followi wing ng,, incl includ udin ing g mate materia riall gene genera rate ted d with withou outt restri restricti ction on from from the the softw software are progra programme mme appear appearing ing on the screen, screen, such such as symbol symbols, s, screen screen displa displays ys and the like.

Exclusion of responsibility Great care was taken in compiling texts and figures. Nevertheless, errors cannot be ruled out completely. Editors and authors cannot assume any legal responsibility or liability for erroneous information and resulting consequences. The editor will readily accept any proposals for improvement and hints at errors. The unit delivered delivered incorporates incorporates the latest state of the art. The manufacturer manufacturer declines any legal responsibil responsibility ity and liability liability for inspection inspections s carried out with the apparatus apparatus and for result resulting ing conseq consequen uences. ces. Success Successful ful implem implement entati ation on of an inspec inspectio tion n presupposes, in addition to the control of the unit setting, also a knowledge of the product to be tested, its material properties, of possible errors and their underlying causes. If these prerequisites are not satisfied, the result will be questionable. In order order to avoid avoid faulty faulty operati operation on and other other errors, errors, traini training ng in the manufa manufactu cturer' rer's s factory or by an independent training organisation is recommended.

registered trademark of ibg Prüfcomputer Prüfcomputer GmbH. eddyvisor ® is a registered HP and LaserJet are registered trademarks of Hewlett-Packard Corporation.

Trademarks are used without warranting free usability.

ibg Headquarter:

ibg Prüfcomputer GmbH Pretzfelder Straße 27 D-91320 Ebermannstadt Tel: +49-9194-738 +49-9194-7384-0 4-0 Fax: +49-9194-7384-10 E-mail: [email protected]

ibg International:

ibg NDT Systems Corp. 20793 Farmington Road Farmington Hills, MI 48336 Tel: +1-248 +1-248-47 -478 8 9490 9490 Fax: +1-248-478 +1-248-478 9491 E-mail: [email protected]

ibg SWISS AG Galgenried 6 CH-6370 Stans

Tel: +41-41 +41-41-61 -612 2 2650 2650 Fax: +41-41-612 +41-41-612 2651 E-mail: [email protected]

ibg UK Ltd. 33 Park View Road Sutton Coldfield GB-West Midlands B74 4PR Tel/Fax: +44-121-352 1188 E-mail: [email protected]

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. ibg Doc: 0713431e, 29 May 2008 ¡Error! Utilice la ficha Inicio para aplicar Überschrift 2 al texto que desea que aparezca aquí. Manual eddyvisor SC

Contents Exclusion of responsibility................................................................................ 0-1 1. Introduction .................................................................................................... 1-1 ®

1.1. What is an eddyvisor ? ..................................................................................... 1-1 1.2. The principle of eddy current structure testing .................................................. 1-2 1.3. Possibilities of eddy current structure test......................................................... 1-3

2. General information ....................................................................................... 2-1 2.1. Selection of structure test coils ......................................................................... 2-1 2.2. Creation of optimum test conditions .................................................................. 2-3 2.3. Wiring ............................................................................................................... 2-5 2.3.1. Desktop instrument ................................................................................. 2-7 2.3.2. Switch panel version ............................................................................... 2-8 2.4. Elements of the front panel ............................................................................... 2-9 2.4.1. Keys...................................................................................................... 2-10 2.4.2. Help function ......................................................................................... 2-11 2.4.3. Printer function...................................................................................... 2-11 2.4.4. Status bar.............................................................................................. 2-11 2.5. Course of measurement ................................................................................. 2-12

3. Short operating instructions ......................................................................... 3-1 3.1. Structure test .................................................................................................... 3-1 3.2. Crack detection................................................................................................. 3-5

4. Operating modes and functions ................................................................... 4-1 4.1. Station and location bar .................................................................................... 4-1 4.2. Part type selection ............................................................................................ 4-1 4.3. Setup ................................................................................................................ 4-2 4.3.1. Project & Language................................................................................. 4-2 4.3.1.1. Language.................................................................................... 4-2 4.3.2. Test Assembly......................................................................................... 4-3 4.3.2.1. Station- and location bar ............................................................. 4-3 4.3.2.2. Station window ............................................................................ 4-3 4.3.3. Inputs and Outputs.................................................................................. 4-6 4.3.3.1. Selection of VCONI..................................................................... 4-7 4.3.3.2. Monitor inputs, force outputs manually........................................ 4-7 4.3.3.3. Allow Signal Assignment............................................................. 4-8

Pretzfelder Straße 27 D-91320 Ebermannstadt • Germany

0-3

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC ¡Error! Utilice la ficha Inicio para aplicar Überschrift 2 al texto que desea que aparezca 29 May 2008, ibg Doc: 0713431e aquí.

4.3.4. System Properties................................................................................. 4-10 4.3.4.1. Printer setting ............................................................................ 4-10 ® 4.3.4.2. Network setting of eddyvisor .................................................... 4-11 4.3.4.3. Date / Time ............................................................................... 4-12 4.3.4.4. Form ......................................................................................... 4-12 4.3.4.5. Network-Log.............................................................................. 4-12 4.3.4.6. Mouse pointer on/off ................................................................. 4-12 4.3.4.7. System monitor ......................................................................... 4-12 4.3.5. Part Type Administration ....................................................................... 4-12 4.3.6. Frequencies & Locations (general)........................................................ 4-13 4.3.6.1. Activate / deactivate location..................................................... 4-14 4.3.6.2. Standard settings ...................................................................... 4-14 4.3.6.3. Discard changes ....................................................................... 4-14 4.3.6.4. Save settings............................................................................. 4-14 4.3.6.5. Save all settings ........................................................................ 4-14 4.3.7. Frequencies and locations (structure test)............................................. 4-14 4.3.7.1. Tolerance zone shape (ellipse / rectangle)................................ 4-14 4.3.7.2. Tolerance zone factor ............................................................... 4-15 4.3.7.3. Frequency ................................................................................. 4-15 4.3.7.4. Test time and settling delay....................................................... 4-16 4.3.7.5. AUTOSTART Configuration ...................................................... 4-16 4.3.8. Frequencies and locations (crack detection) ......................................... 4-18 4.3.8.1. Band pass and tolerance zone .................................................. 4-18 4.3.8.2. Tolerance zone factor ............................................................... 4-19 4.3.8.3. Sender frequency...................................................................... 4-19 4.3.8.4. Tolerance zone factors commonly operated.............................. 4-19 4.3.8.5. Threshold .................................................................................. 4-19 4.3.8.6. Settling delay............................................................................. 4-19 4.3.8.7. End of test after … .................................................................... 4-19 4.3.8.8. Lift-off compensation monitoring ............................................... 4-20 4.3.8.9. Monitoring of probe (noise threshold)........................................ 4-20 4.3.8.10. Speed monitoring.................................................................... 4-20 4.3.8.11. Frequency range proposals..................................................... 4-21 4.3.8.12. Setup Lift-off compensation..................................................... 4-21 4.4. Reference Data............................................................................................... 4-21 4.4.1. Data recording active ............................................................................ 4-22 4.4.2. Data recording stopped ......................................................................... 4-22 4.4.2.1. Navigation in parts .................................................................... 4-22 4.4.2.2. Mark reference parts................................................................. 4-23 4.4.2.3. Tolerance Zone Editor (structure test)....................................... 4-23 4.5. PMFT - Preventive Multi-Frequency / Multi-Filter Test..................................... 4-24 4.5.1. Testing active........................................................................................ 4-24 4.5.2. Stop testing ........................................................................................... 4-24 4.5.2.1. Navigation in parts .................................................................... 4-25

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4.5.2.2. 4.5.2.3. 4.5.2.4. 4.5.2.5.

Parts Counter............................................................................ 4-25 Screen off ................................................................................. 4-25 Add test part to Reference Data ................................................ 4-26 Tolerance Zone Editor (structure test)....................................... 4-26

4.6. Display options................................................................................................ 4-26 4.6.1. Structure test......................................................................................... 4-26 4.6.1.1. Locus curve display................................................................... 4-26 4.6.1.2. Tolerance zone display - single................................................. 4-26 4.6.1.3. Tolerance zone display - all....................................................... 4-27 4.6.1.4. Bargraph display ....................................................................... 4-27 4.6.2. Crack detection ..................................................................................... 4-28 4.6.2.1. Outline bars............................................................................... 4-28 4.6.2.2. Tolerance zone display - single (xyt-display) ............................. 4-29 4.6.2.3. Tolerance zone display - all....................................................... 4-30 4.6.2.4. C-scan display........................................................................... 4-31 4.6.2.5. Bargraph display ....................................................................... 4-31 4.6.3. Parts counter and history ...................................................................... 4-31 4.7. Key switch - authorisation level....................................................................... 4-32

5. Data recording via network with eddyLogger.............................................. 5-1 6. Connection with automatic sort systems .................................................... 6-1 6.1. Automatic test, program course ........................................................................ 6-1 6.2. Time diagram.................................................................................................... 6-2 6.3. Electronic diagram of interfaces........................................................................ 6-4 6.3.1. Proposal for Signal Assignment .............................................................. 6-6 6.4. Example Opto-Interface .................................................................................... 6-7 6.4.1. Current supply for in and outputs ............................................................ 6-7 6.4.2. Interface for universal sorting device....................................................... 6-8 6.4.3. Test on consecutive locations controlled by PLC .................................... 6-9 6.4.4. Part type switching controlled by PLC ................................................... 6-10 6.5. Coil connection VCONS (structure test).......................................................... 6-11

7. Part type switching via PLC (structure test)................................................ 7-1 7.1. Part type switching controlled by PLC ............................................................... 7-1 7.2. Part type request controlled by PLC.................................................................. 7-2


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8. Technical data.................................................................................................8-1 9. Glossary ..........................................................................................................9-1 10. Appendix .....................................................................................................10-1

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1. Introduction ®

We congratulate you on the decision to employ the eddyvisor in your factory. With this instrument you have acquired the most advanced eddy current testing device working according to the P REVENTIVE M ULTI-FREQUENCY T EST as well as the PREVENTIVE MULTI-FILTER TEST (PMFT). Successful implementation of a test presupposes, in addition to a full command of the instrument settings, also a solid knowledge of the product to be tested, its material properties, of the errors likely to occur and their underlying causes. The tester must be conversant with the limitations and restrictions in error detectability as well as with the efficiency of the equipment used and with its proper function. It is the proper functioning that needs to be checked prior to every test and periodically during operation in order to warrant reliable test results. If these requirements are not satisfied, the result will be of questionable value. Should you have any further questions or need our advice for an optimum solution of your testing problem, please do not hesitate to contact us. Our after-sales service is ready to help you at any time. Chapter "3. Short operating instructions" from page 3-1 is mainly intended to save ® the users who are not constantly working with the eddyvisor the troublesome study of a detailed user manual. ®

As a new user of the eddyvisor you should simply try to perform a test with this unit under the guidance of the "3. Short operating instructions" before going through the detailed user manual and the fine adjustment of all parameters. You will be ® surprised how quick you will learn to handle the eddyvisor . Please read these concise operating instructions carefully in order to avoid operating errors. We have tried hard to keep the instructions as short as possible in an effort not to burden you with unnecessary information.

1.1. What is an eddyvisor ® ? The eddyvisor S is an eddy current test instrument for S tructure test using PMFT Preventive Multi-Frequency Test. This enables testing e.g. for material mix, hardness, case depth, material composition as well as material texture of conductive materials. The eddyvisor C is an eddy current test instrument for Crack detection using PMFT Preventive Multi-Filter Test. This enables testing e.g. for surface-open cracks or disturbances of surface texture of conductive materials.


1-1

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC ¡Error! Utilice la ficha Inicio para aplicar Überschrift 2 al texto que desea que aparezca 29 May 2008, ibg Doc: 0713431e aquí. The eddyvisor SC combines both test methods ( Structure & Crack test) in one instrument.

1.2. The principle of eddy current structure testing When alternating current is sent through a transmitter coil, a magnetic field builds up at the coil. If a conductive test specimen approaches the current-carrying coil, an eddy current is induced in the test specimen. This phenomenon is schematically illustrated in fig. 1.1.

u

2

is

um

us u

1

iw

Figure 1.1 The magnitude of the eddy current depends on the chemical composition (alloy) and on the structural condition (e.g. hardened). By changing the eddy current frequency, an electromagnetic "thumbprint" of the structural state is obtained in the coil system. This can be picked up by the instrument through the integrated receiver coil and evaluated. An alteration in the structural state, in the alloy and the like attributable to a mix-up of material, a batch mix or faulty thermal treatment causes also the eddy current signal to change. The eddyvisor S testing device recognizes such changes and indicates deviations. The eddyvisor S operates according to the method of PREVENTIVE MULTIFREQUENCY TESTING (PMFT) developed by ibg. The merit of PREVENTIVE MULTI-FREQUENCY TESTING is seen in the high probability of detecting even unknown flaws on account of the broad frequency band selected. In contrast to other procedures, ibg uses low field strength values. This means that only low currents flow through the coils and that low permeabilities develop in ferromagnetic materials (initial permeability).

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This method affords the following advantages: 

It operates at the higher penetration depth of the eddy current so that the influence exerted by the marginal layers is reduced.



The reproducibility of the measurements is guaranteed because no magnetic alterations develop in the structure of the specimen.



Improved testing stability because no heat builds up in the specimen, the instrument and in the coil.

The salient properties of PREVENTIVE MULTI-FREQUENCY TESTING (PMFT) are the following: 

Maximum testing reliability - even unknown flaws are identified without fail.



Only good parts must be presented to the instrument.



The generation of tolerance zones is extremely simple and made in a very short time.

1.3. Possibilities of eddy current structure test Eddy current inspection can be applied to any type of material being conductive either electrically or magnetically. This holds good for all metallic materials. The eddyvisor S takes care of all the fields of application summarily mentioned in table 1.1.

Type of parts

Parameters to be tested for

Forged pieces Bearing components VA-tubes Screws Brake discs Power transmission elements Components of belt locks Linear guides Balls

heat treatment and material mix-up hardness and material mix-up material mix-up heat treatment chill depth purity and core strength hardness and texture purity and grinding burn material mix-up

Table 1.1 Please note that the eddy current inspection procedure is not an absolute measuring method but rather a comparative approach. The hardness of parts can be measured with the eddyvisor S inspection device to within 2-3 HRC without any problem. However, as is the case with all eddy current tests, the inspection is Pretzfelder Straße 27 D-91320 Ebermannstadt • Germany

1-3


based on YES/NO answers. The eddy current testing instrument does recognize deviations from existing tolerance zones, but cannot reveal the causes responsible for them. In order to obtain precise information on why the specimens were classified as not being in order, yet other testing procedures such as hardness test and metallographic studies must be employed to confirm the findings of the eddy current device.

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2. General information ®

The eddyvisor eddy current inspection device is multiprocessor-controlled. The entire control software is configured hierarchically, so the selectable submenus ® automatically result from each main menu. The eddyvisor is operated via a socalled soft key control system which enables the user to handle the device with a restricted number of keys. These operating instructions have been arranged so that each step of operation is explained in chronological order. All you need to do is to execute the instructions step by step as indicated. While proceeding in this manner, you are guided through the complete software.

Hint The [?]-is auxiliary and serves to indicate a context-related help at any time. This means that the help needed is offered at any point of the software. The key combinations to be actuated by the user are written in bold capital letters throughout the User Manual. Should you nevertheless experience any problem with operation, please contact us under the following telephone number:

ibg Prüfcomputer GmbH, Tel. +49-9194-7384-0

2.1. Selection of structure test coils Selection of the proper test coils and probes is of decisive importance for the test result. In addition to a set of standard coils and probes, special coils adapted to the job are available. The selection of suitable coils determine the type of job and the shape of the specimen. Here the following criteria should be considered: 

What is the job like? e.g. measurement of the case depth of shafts



Which coil should be used? The suitable coil or probe can be taken from table 2.1.


2-1


Field of application

l i o c r a l u g n a t c e R

l i o c t a l F

+

++ + + ++

+ ++ ++ ++

+ ++

e b o r P

l i o c g n i l c r i c n E

100 kHz 100 kHz 100 kHz 100 kHz

+ ++ ++ ++

++ + + ++

25 Hz - 25 kHz 100 Hz - 25 kHz 5 Hz - 400 Hz 5 Hz 4 kHz 5 Hz - 25 kHz 10 kHz - 100 kHz

+ ++

++ ++ ++

++ ++ +

++ ++ ++







++ +

+ +

++ +

+ ++

5 Hz 5 kHz 25 Hz - 25 kHz

+ ++

++ +

+ +

++ +

+ ++

5 kHz - 100 kHz

++







++

Frequency range

l i o c d g e n d i l l e c i r h i c s n E

Material mix: ferritic material austenitic material non-ferrous metals hard metals

25 100 100 50

Hz Hz Hz Hz -

+  

Heat treatment: tempering surface hardness case depth of shafts case depth (carburized) carburization decarburization

– –

+ ++

– –

Cast iron: nodular cast iron ledeburite (spherocast)

Surface: grinding abuse

++ very good

+ good



possible

– not possible

Table 2.1 Our standard coils are classified by frequency ranges. Whereas the frequency range of the encircling coils is directly indicated on the name plate, the probes are coded as follows: 1 ring 2 rings 3 rings

25 Hz to 250 Hz to 5 kHz to

10 kHz 50 kHz 250 kHz

As far as encircling coils are concerned, a filling degree of less than 60 % should not be selected as otherwise the measuring signals become too small and the differences, say, in the case depth are no longer recognized distinctly. When using encircling coils, a second coil is required for compensation. This coil must feature a

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firmly (!!!) mounted compensation part. Removing or shifting the compensation part leads to wrong test results. The compensation part has no comparing function designed to distinguish the OK-parts from the NotGood-parts. The basic design of the standard encircling coils is displayed in Fig. 2.1. Each coil contains a transmitter and receiver winding. The receiver winding should always be arranged as close as possible to the area to be measured. It is very easy to find out on what side the receiver or transmitter windings are located. Just take an encircling coil and read the name plate. If you can read this plate and when the coil plug is on the left of you, the receiver winding is below and the transmitter winding is above in the coil. Section A-A ibg P/N S/N DAT

25Hz-25kHz

Coil plug Frequency range

Transmitter winding Receiver winding

A

A

Figure 2.1 For coil protection wearing bushes of abrasion-resistant plastic material e.g. "Murtfeldt S green" should be used.

2.2. Creation of optimum test conditions Be sure to pay attention to the following points when carrying out a testing job. Carefully read the following hints. Disregarding them is likely to lead to faulty measurements. The eddy current procedure is no absolute method.

The following parameters may cause the results to scatter: 

Inhomogeneities in material



Dimensional tolerances in the specimen



Dimensional tolerances in coil or probe positioning


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

Variations in temperature (structure test)

For optimum results please pay attention to the following points: 

Make sure that the parts used for Reference Data really comply with the desired specifications.



Show at least 5 OK parts to the instrument as Reference Data at least 10 OK parts when structure testing.



Select reasonable tolerance sizes. To avoid the risk of undesirable pseudo rejects.



Do random checks during testing with OK and NG parts.



Lock the instrument with the keyswitch to avoid unwanted access.



Read the operating manual before initial operation.



Provide constant and reproducible test conditions.



Avoid interferences near the coil resp. probe such as current impulses, flux setups active during the measurement, electric welding and other magnetic or electric interference fields.

In addition for structure test: 

Different batches should be tested separately. The best results are obtained if for each material batch an own part type (with own reference data) is used.



Please see to it that the test parts have constant test temperature.



Please see to it that no metallic parts, which are not marked for testing, are located near the test coils.



Carry out the test on a wooden table, if possible. Even steel girders underneath a wooden board are likely to affect the test results.

The following factors may adversely affect the measurement directly: 

Positioning of the specimen in the coil resp. in relation to the probe (distance).



Dimensional tolerances of the specimens.



2-4

Structure test: variation in batches or differences in temperature between calibration part and test part.





Use of coils resp. probes with a wrong frequency range.



Lift-off effect due to dust and dirt.



Edge effect caused by measuring near edge of part

2.3. Wiring ®

Prior to putting the eddyvisor into operation, all cables must be connected and all connections to be checked.

WARNING Please take care that all cables are plugged and screwed tight before the power switch is turned on. The instrument must be grounded properly (PE connector of the mains plug or grounding screw on the instrument housing, see drawing of the back side of the instrument below). Otherwise, voltage may constitute on the housing. If the instrument is not grounded properly, the safety standard protective ground are not obeyed. Furthermore, quality of testing is impaired so that optimum test results cannot be achieved. Also ensure that all plugs are firmly connected and screwed tight. ®

If plugs are inserted after connection of the eddyvisor the various components are likely to be damaged! ®

®

The eddyvisor consists of the operating unit eddyvisor HMI and the measuring ® unit for structure resp. crack test eddyvisor MSC (refer to "9. Glossary"). Both units communicate via USB interface. ®

Both units are connected to one unit as eddyvisor desktop instrument. Power supply is effected via the measuring unit. USB coupling of the single parts is done internally without using the USB jack of the measuring unit. ®

Operating and measuring unit are supplied separately when using the eddyvisor in a test system. Both units have to be supplied with line voltage. USB coupling of the single parts is done via one of the protected lower USB jacks of the operating unit and the USB jack of the measuring unit.


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OS-CompactFlash (CF)

USB-jacks (refer to text)

Ethernet jack

mains plug fine-wire fuse T 2.0A

Figure 2.2 ®

Figure 2.2 shows the bottom side of the operating unit eddyvisor HMI. An ibg CFcard has to be used in the CF-slot. The lower one of the two USB jacks is used for ® connection of measuring unit of the eddyvisor . The Ethernet jack enables connection to a network printer, a company network resp. a PC/laptop.

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2.3.1. Desktop instrument slot-no.

coil connection board VCONS2 (structure test)

probe connection board VCONC2 (crack test)

I/O-board VCONI

type plate

mains plus and finewire fuse T 2.0A

Figure 2.3 ®

Figure 2.3 shows the connector side of the measuring unit. It is an eddyvisor DSC for structure test with max. 2 coils and crack test with max. 2 probes. Slots 1 - 4 include exchangeable boards. Slot 1 includes a coil connection board VCONS2 (for structure test) for use with max. two coils - „A1“ and „A2“. Up to 8 coil connections per slot are possible (VCONS8). Slot 2 includes a probe connection board VCONC2 (for crack detection) for use with max. two probes - „A1“ and „A2“. Up to 4 probe connections per slot are possible (VCONC4). Each probe connection board VCONCx requires internally a channel board VKAN. Slot 3 includes an I/O-board VCONI for connection of 16 in- and 16 outputs 24 Vdc per D-sub plug. Power supply of the I/O jacks is effected either via D-sub plugs or


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via bridges at the 24V power supply plug „C“. I/O-boards VCONI may be used only either in slot 3 or in slot 6 or in slot 7. Slot 4 includes a mains supply board. Plug „A“ shows the mains supply of the measuring unit. Power supply of the operating unit of a desktop instrument is effected internally. Plug „B“ shows the USB jack of the measuring unit for connection with a separate operating unit. The USB jack of the measuring unit of ® the desktop eddyvisor is not wired. ®

At desktop eddyvisor , only slots 1 - 4 of the measuring unit are accessible.

2.3.2. Switch panel version ®

At test systems, eddyvisor with separate operating and measuring unit, all slots (1 - 7) of the measuring unit are accessible. Slots 1 - 4 are at the outside of the switch cabinet, slots 5 - 7 are inside. Slots 1 - 4 includes coil connection boards VCONSx and crack detection probe boards VCONCx and point to the test mechanic. Slot 5 is equipped with the mains supply board and slots 6 - 7 with I/O-boards and point to the PLC.

Important note! ®

The eddyvisor must be properly earthed: PE-connector of the mains plug or earthing screw on the housing of the measuring unit in test systems. Otherwise, voltage may constitute on the housing. If the instrument is not earthed properly, the safety standard protective ground are not obeyed. Furthermore, quality of testing is impaired so that optimum test results cannot be achieved.

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2.4. Elements of the front panel ®

The eddyvisor is operated on the front panel of the operating unit. Figure 2.4 shows the front panel.

(b) (a)

(c)

key switch

ON-function lamp

2x USB jack

touch panel

Figure 2.4  Touch

panel

The touch panel displays information and serves as key keyboard. The menus are explained in the following chapter.  USB-jacks

There are two USB jacks behind a sliding cover in order to save or recall settings.  ON

function lamp

A blue LED is on when the instrument is on.  Key

switch

The key switch has 3 positions. The key may be taken out at all 3 positions. (a) The instrument is switched off (separated from the power line).


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(b) The instrument is switched on. All functions are accessible. (c) The instrument is switched on. Restricted access to functions of the instrument. Use: No unauthorised access at running test possible. 

When turning the key to position (c) a window appears. Here the range of access restrictions may be chosen.

2.4.1. Keys ®

The operation of the eddyvisor is carried out via the displayed keys on the touch screen. The meaning of the keys is explained by the screen text. Further help is possible by pressing the [?]-key and then the key to be explained. At the left side of the touch screen, in many operating modes, stations and locations are displayed resp. selected. At the upper edge of the touch screen, the main navigation bar is displayed. The current operating condition can be seen by the pressed key. At the right side of the touch screen, different function keys are displayed depending on operating mode. Figure 2.5 shows (as example) the help for the reference data menu.

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help text

printer

help

Activate Ref.-Data Recording / Data Recording active

Here, a station is set to condition reference data recording. The first activated position of a station is now sensitive for incoming start signals, as soon as it is started all other activated positions are sensitive for start signals as well. When pressing the key "Data Recording active" is displayed within the key. When "station states are operated together" is set in SETUP - test assembly all stations are activated. Stop Ref.-Data Recordin g / Data Recording stopped

After the reference data for the parts ar e recorded the reference data recording for the station may be

serial number ev software version

demo-mode

test-info

date, time

status bar

Figure 2.5

2.4.2. Help function ®

The eddyvisor provides a context-relating help. By pressing the [?]-key and then the key to be explained help is called. Figure 2.5 shows the help for reference data menu.

2.4.3. Printer function ®

The eddyvisor enables documentation by using screen prints. By pressing the printer -key the menu for printing of the current screen is called. Printing to a printer (set in "Setup" / "System settings") is possible, or a screenshot can be stored to a memory stick, storable in different formats.

2.4.4. Status bar The status bar is at the lower edge of the screen. The following information are displayed:


2-11




EV XX.XXX ® Software version of eddyvisor



S/N: XXXXX ® Serial number of the eddyvisor



in DEMO-mode The word "DEMO" is red-blinking. All functions can be used in demo mode. Any modifications of settings, however, are not saved. Any changes get lost when switching off the instrument.



"Neg: xx Id: xx Err: xx" Debug information for ibg.



"Authorisation: ..." in horizontal, right-hand keyswitch position: The current authorisation level e.g. "authorisation: basic position" is displayed.



Activity display (structure test at reference data recording or testing): Display of the current measuring e.g. "Calibration" for automatic calibration; "S1/P2 Settling Delay", "S1/P2 Testing" for station 1 / location 2 in settling delay resp. measuring.



Date and time in format year-month-day hour:minute:second.

2.5. Course of measurement The eddyvisor S operates on the ibg-developed principle of PREVENTIVE MULTI-FREQUENCY TESTING (PMFT). After the measurement has been triggered, the test frequencies are applied successively to the coil system, starting at the lowest test frequency. At each test frequency the response of the specimen to the coil system is recorded and the electric voltage vector is broken down into its X and Y components and stored. Upon completion of the test, the values stored are, depending on the operating mode, either compared with the tolerance zones (mode SORTING) or assigned to the material data (mode RECORDING O.K. PARTS). STARTx (start pulse) settling delay BUSY-S (structure test runs) OKx (sort output Gut) ENDx (end of measuring)

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Measurement starts with the "START-Signal": Measurements are started with the START-signal and need a certain time (BUSYS-signal). A measurement can only be triggered in mode REFERENCE DATA or PREVENTIVE MULTI-FREQUENCY TEST.

Settling delay: After starting a test, but before the test proper begins, the operator may select an adjustable settling delay. This delay allows the specimen to "settle inside the test coil", so the test will only be started as soon as the part has taken up its final position in the coil.

The "BUSY-S-signal": If the test unit functions in one of the two operating modes REFERENCE DATA or PREVENTIVE MULTI-FREQUENCY TEST the BUSY-S-signal (BUSY, structure test) will appear immediately following the START-signal. The settling delay starts running and upon expiration the test proper commences at the first frequency. If the start of the following location is set to AFTER „▼“ the settling delay of this location is immediately started, the BUSY-S-signal remains active. If it concerns, however, the last channel within a test block the BUSY-S-signal disappears. Disappearing of the BUSY-S-signal means that the eddyvisor S is ready to start a new measurement.

The sorting decision with the "OK-i-signal": After testing a location at all frequencies the sorting decision is made and transmitted to the sort outputs (OK-i-signal, NOK-i-signal). In mode REFERENCE DATA no sort signal appears.

The sum sorting decision with the "OK-S-" and "NOK-S-signal": After testing all locations of one station the sorting decision for the station is made and transmitted to the sort output (OK-S-signal and NOK-S-signal). For this, the formation of the sum signal OK-S must be set. In mode REFERENCE DATA no sort signal appears.

The END-i-signal: After testing a location at all test frequencies the allocated END-i-signal appears.


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The sum signal END-S: After testing all locations of one station the sum signal for the station is made and transmitted to e.g. the output END-S. For this, the formation of the sum signal ENDS must be set.

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3. Short operating instructions 3.1. Structure test These concise operating instructions are intended to show you, that the eddyvisor S enables you to obtain test results in a short time, whenever projects are available. A standard project 'screw test' (DEMO mode) is used here. It is adjustable in the menu SETUP, PROJECT & LANGUAGE. Below are the sequence of steps to be executed: (a) The probe resp. the coils are directly connected to the measuring unit of the eddyvisor S, coil board VCONS in slot 1 and jack A. Using encircling coils: one part is put into the compensation coil(s). Using selfcompensated coils or probes: no compensation part needed. (b) If operating and measuring unit are separate they have to be connected via a USB-cable. (c) Connect eddyvisor S to mains supply. If operating and measuring unit are separate both units must be supplied with mains voltage. (d) Prepare at least 10 (better some more) OK parts (as reference). (e) The characteristic eddy current data are recorded by "showing" the known OK-parts. The eddyvisor S automatically forms tolerance zones. (f) The specimens are tested by comparing their eddy current characteristics with the tolerance zones formed by the material data and sorting based on Good (OK) and NotGood (NOK) criteria. Now proceed step by step as indicated in the short operating instructions. The standard configuration of the eddyvisor S includes already a test configuration. This standard configuration is accessible via menu SETUP, PROJECT & LANGUAGE, STANDARD PROJECT ... (DEMO MODE). Any changes to this demo project will get lost when switching off the eddyvisor S or leaving the demo mode.  Switch

on the instrument with the key switch, key in vertical (middle) position.

 Select

the standard project 'screw test' (DEMO mode) in the menu SETUP, PROJECT & LANGUAGE.

 Then select the main menu REFERENCE DATA.

The eddyvisor S now displays the MAIN MENU and has loaded a project available in the internal memory. In the upper left-hand corner, the currently active


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part type can be seen, here type 001, generated on 2005-06-01 (year-month-day), name "type", "no. 01". REFERENCE DATA is selected in the main menu.

station, state

part type selection

main menu

active menu, condition sub menu

Figure 3.1  press REFERENCE

DATA (if necessary)

The mode REFERENCE DATA becomes active. In this mode, OK parts are read in and tolerance zones are formed. A tolerance zone with REFERENCE DATA RECORDING STOPPED appears and on the right-hand side the relating menu.  press ACTIVATE DATA RECORDING

The mode changes to REFERENCE DATA RECORDING RUNS. The station keys get a small yellow arrow symbol which means the release for reference parts recording.

3-2



Put one OK part resp. the coil to test position and press the START-key on the eddyvisor S. Measuring values via the set frequency are recorded for the part and displayed in the tolerance zone.



Change the OK parts and press the START-key on the eddyvisor S. Further measuring values are recorded. The value of the latest reference part is specially displayed. At the same time tolerance zones are formed relating to the measuring values. These tolerance zones are used for the succeeding test for comparison.




3-3

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC ¡Error! Utilice la ficha Inicio para aplicar Überschrift 2 al texto que desea que aparezca 29 May 2008, ibg Doc: 0713431e aquí. PREVENTIVE MULTI-FREQUENCY TEST station, release

location

tolerance fields

latest recorded parts

display options

history

Figure 3.2

3-4



Press PREVENTIVE MULTI-FREQUENCY TEST in the main menu. The menu PREVENTIVE MULTI-FREQUENCY TEST becomes active. Several small tolerance zones appear one below the other and the mode PMFTesting active is displayed. The station number has a small green arrow symbol which means the release for parts testing.



Put the part to be tested resp. the coil into test position and press the START-key on the eddyvisor S. If the part is good (OK) a green OK symbol goes on. If the part is bad (NOK) a red NOK symbol goes on. At the same time bargraphs are displayed for each measuring frequency mirroring the relative position of the measuring values regarding the tolerance zone. The position of the measuring value is indicated in the tolerance zones.



Change the part to be tested and again press the START-key on the eddyvisor S. The maximum deviations of the latest recorded parts appear as bargraphs in the lower part of the screen besides the small history of the test results.





The display options are bargraph diagram, local material curve and several tolerance zones. When displaying the results of a single frequency the bargraph changes to a display of values of this frequency. NOK parts are marked in red. As per this course all parts to be tested are verified at all locations.



PREVENTIVE MULTI-FREQUENCY TEST, press STOP TESTING. The mode changes to STOP TESTING. The station numbers get a small black double-bargraph symbol which means lock regarding parts testing. The submenu changes and two yellow arrow keys appear besides the parts statistic.



Pressing "Reset parts counter" opens a window with a safety request if parts counter and sorting data are really to be deleted. In doubtful case say no.



Between the latest recorded parts may be changed by pressing the yellow arrow keys. For a quicker change the selection may be limited to OK parts and NOK parts. The selection is done via a switch besides the statistic.



Pressing "Add tested part to ref data" enables adding of a part to the reference data. A safety request avoids adding of parts by mistake. Parts which have been added for trial purposes may be marked as invalid and deleted in REFERENCE DATA menu.



Press the PRINTER symbol on the eddyvisor S in order to print a test protocol. An inquiry window appears. You can select between printing the screen as picture file in a certain format or printing the protocol on a printer. The just running sort test is not influenced by the printing process.

3.2. Crack detection These concise operating instructions are intended to show you, that the eddyvisor C enables you to obtain test results in a short time. Starting point is the factory setting. For this, "Standard settings" in menu "Setup" / "Project & Language" are called. Below are the sequence of steps to be executed: (a) The crack detection probe is connected with the measuring unit of the eddyvisor C, to the probe connection board VCONC in slot 1, jack A1. (b) If operating and measuring unit are separate they have to be connected via a USB-cable. (c) Connect eddyvisor C to mains supply. If operating and measuring unit are separate both units must be supplied with mains voltage. (d) Prepare at least 5 (better some more) OK parts (as reference).


3-5


(e) Recording of characteristic noise of the surface (as eddy current data) by "showing" of these OK parts. The eddyvisor C automatically generates tolerance zones. (f) The specimens are tested by comparing their eddy current characteristics with the tolerance zones and sorting based on Good (OK) and NotGood (NOK) criteria. Now proceed step by step as indicated in the short operating instructions. The standard configuration of the eddyvisor C includes already a test configuration. This standard configuration is accessible via menu SETUP, PROJECT & LANGUAGE, STANDARD SETTING.  Switch on the instrument with the key

switch, key in vertical (middle) position.

 Select the "standard setting" in the menu SETUP, PROJECT & LANGUAGE.  Then

select the main menu REFERENCE DATA.

The eddyvisor C now displays the MAIN MENU and has loaded the standard setting. In the upper left-hand corner, the currently active part type can be seen, here type 001, generated on 2007-05-09 (year-month-day), name "type", "no. 01". REFERENCE DATA is selected in the main menu. station, state

part type

main menu

Figure 3.3

3-6


function keys


 press REFERENCE DATA (if

necessary) The mode REFERENCE DATA becomes active. In this mode, OK parts are read in and tolerance zones are formed. The minimum tolerance zone of one of 30 band passes is shown. The station condition "stopped" is visible on the left-hand side in the station key and on the right-hand side at condition of function key.

 press ACTIVATE DATA RECORDING

The mode changes to REFERENCE DATA RECORDING RUNS. The station keys get a small yellow arrow symbol which means the release for reference parts recording. 

Put one OK part resp. the probe to test position and start rotation of part resp. probe. Press the START-key on the eddyvisor C. Now the noise signals of the surface are recorded and displayed live. If testing includes a surface scan do the advance movement (the scan) now. It is normal that the signals of the first reference part are displayed very large as display is done with the largest amplification.



After the scan press the STOP-key on the eddyvisor C. A "polar field" is automatically formed around the signals taken between START and STOP and displayed in orange. This happens in the xy-display for each of the 30 band passes. The green tolerance zones are calculated of the polar fields of all reference data plus the tolerance zone factors and are displayed.



Now change OK part and do the same procedure; start rotation, press START on eddyvisor C, do scan, press STOP on eddyvisor C and stop rotation. So the measuring values for further reference parts are taken. The measuring value of the latest reference part are displayed. At the same time, tolerance zones to the measuring values are formed. These tolerance zones are used for the following test for comparison.


3-7

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC ¡Error! Utilice la ficha Inicio para aplicar Überschrift 2 al texto que desea que aparezca 29 May 2008, ibg Doc: 0713431e aquí. PREVENTIVE MULTI-FILTER TEST station, release

location

display options

tolerance fields

latest recorded parts (history)

parts counter

Figure 3.4  press Preventive

Multi-Filter Test in main menu

The menu Preventive Multi-Filter Test becomes active. Several small tolerance zones appear one under the other and the station condition changes to "test active". The station numbers get a small green arrow symbol indicating release for parts testing. the test part resp. the probe in test position, start rotation, press the STARTkey on the eddyvisor C, scan, press the STOP-key on the eddyvisor C. If the part is good (OK) a green symbol goes on. If the part is bad (NG) a red symbol goes on. At the same time, bars for each band pass are faded in which show the size of the signal in relation to the tolerance zone.

 Put

 Change

the part and do the same procedure (rotation, start, scan, stop) for each part. The maximum deviation of the latest recorded part appears as bar sequence in the lower part of the screen as small history to the test results.

 Pressing

the display options shifts between bargraph display, xyt-display (with polar- and tolerance zone) and C-scan-display. Displaying the results of a single band pass, the history does only show this one band pass, too. The red/green indication of result left ahead always refers to the sorting result of the complete station, i.e. the result of all bad passes.

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As per this procedure all parts to be tested are checked at all locations.  press Stop

testing

The station condition changes to testing stopped. The station numbers get a small black double-bargraph symbol indicating lock regarding parts testing. The function keys change and two yellow arrow keys appear beside the parts statistic.  Pressing

"reset parts counter" opens a window with a safety request if the parts counter and the sorting data are really to be deleted. In doubtful case say no.

 The

yellow arrow keys enable switching between the latest recorded parts. For quicker change, the selection may be limited to OK or NG parts only. Selection is done via a key beside the statistic.

 Pressing

"Add test part to RefData" allows adding of a part to the reference data. A safety request avoids erroneous adding of parts. In reference data menu, added parts can be marked as invalid and removed for test purpose.

 Press printer symbol on eddyvisor C

To print a test protocol when a printer is connected. An inquiry window appears. You may decide whether the current screen is printed as picture file in a certain format or whether a protocol is printed. The running sorting is not influenced by printing.


3-9


4. Operating modes and functions ®

The main menu of the eddyvisor includes: 

Setup ® Project settings of the eddyvisor



Reference data Recording of reference parts to generate tolerance zones



Preventive Multi-Frequency / Multi-Filter Test Testing of parts and sorting to OK and NG

4.1. Station and location bar A station bar on the left-hand side of the screen allows to select single or all stations. The single station keys get a coloured icon to mark the current condition of the station: 

two black rectangles on the lower left-hand side: station stopped.



yellow triangle on the upper left-hand side: station in reference data recording



green triangle on the upper right-hand side: station in Preventive Multi-Frequency Test

A location bar is positioned beside the station bar. Depending on the selected station the corresponding locations are displayed. Single or all locations are selectable via the locations keys. If a station / location and bargraph display are selected, a list of test frequencies with their letters A - H appears beside the location bar.

4.2. Part type selection The key on the upper left-hand side of the touch screen shows the current part type. Press this key and a menu "Overview of saved Part Types" appears. A list of available part types is shown. The list may be sorted according to number of part, caption 1, caption 2 or date by pressing the key in the headline. Repeatedly pressing the key inverts sorting sequence.


4-1


Part types are selectable via the arrow keys on the left-hand side of the list. A selected part type is loaded into the current resp. all stations by pressing „Load only in this Station“ and "Load in all stations" and the menu is left. The key "Cancel" leaves the menu without any changing. For further information see chapter SETUP - Part Type.

4.3. Setup ®

All settings of the eddyvisor are done in menu SETUP. It is subdivided into the following points: 

Project & Language Setting of language, storage and restorage of settings of the instrument to resp. from the USB storage medium (USB-stick) as projects.



Test assembly Test assembly describes the stations with their locations and the relating coils and logical signals.



In- and outputs Allocation of logical signals and physical in- and outputs.



System settings ® Basic settings like printer, integration of eddyvisor into a network and date/time.



Part type Creation of individually named part types for use with test assembly.



Frequencies & Locations Setting of band passes, settling delay and test times and versatile monitoring functions. If used, also setting of lift-off compensation.

4.3.1. Project & Language ®

Menu of eddyvisor to select language and to load and store the current project.

4.3.1.1. Language The language of the user interface is selected. Pressing a key causes immediate switching of language.

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4.3.2. Test Assembly Test Assembly describes the stations with their locations and the relating coils and logical signals. Pressing the key "Default Settings" sets test assembly to standard settings. This test assembly includes a station with one location. Modifications of the complete test assembly are taken by key "Save all stations" or the latest conditions are restored by key "Undo". If menu is changed a safety request asks if to use the modified test assembly resp. to undo or to cancel menu change.

4.3.2.1. Station- and location bar Stations and locations are selected, added or deleted via the station and location bar on the left-hand side of the screen. Pressing the key "Add Structure STATION" completes the station bar by a structure test station. Pressing the key "Add Crack STATION" completes the station bar by a crack test station. 8 stations are the maximum. A selected station is deleted by pressing the key "Delete STATION". The remaining stations are numbered anew. Locations may be added or deleted to resp. from a station by pressing the key "Add LOCATION" or "Delete LOCATION". Added locations get automatically the basic settings. Maximum 32 locations are totally possible for all stations.

4.3.2.2. Station window The test assembly of the selected station is shown in the station window. The name of the station is shown in the upper left-hand corner. The key "Station states will be operated together / individually" determines if all stations switch between the modes „reference data recording running“ resp. „...stopped“, „Preventive Multi-Frequency Test running“ resp. „...stopped“ at the same time or individually. In the upper part of the station window each location has a bar with parameters. If there are more locations than can be displayed a scroll bar is shown. Below there are sum information on the station and the amount of locations.

Coil resp. probe


4-3


In general, a pair of coils is used for structure testing, one test coil and the relating compensation coil. Crack detection uses probe w/o or with lift-off compensation. The pair of coils / the probe is connected to the VCONS / VCONC. Connection plug is shown in format: VCONS-slot (1 - 4), connector VCONS (A or B), pair of coil (1 or 2) Example: coil „1A2“ means VCONS in slot 1, connector A, pair of coil 1. The coil is set in the same way for all locations of a station in the location bar individually or via the key "coil". When selecting a coil, an overview appears showing all possible coil connections. Touching same key again closes the overview. Touching a marked coil proposal in the overview takes it.

Coil monitoring is set either "ACTIVE" or "not active". If coil monitoring is active the test coils are monitored for short-circuit or break. In case of any failure testing is stopped and a failure message appears on the screen.

Start Signal Start of reference data recording or Preventive Multi-Frequency Test is triggered by a logical start signal. The logical start signal of a location knows different start modes:

4-4



START 1..32 Triggering of start via rising edge at one input of a VCONI-board. It is recommended to use START-i signals of standard pin assignment only.



Conti (structure test only) Continuous triggering - the start signal is triggered automatically in short intervals (approx. 20 msec.). Application: triggering of the first test of a station which permanently tests.



AFTER, symbol “▼” (structure test only) Automatic start trigger after testing of the previous location. Application: triggering of the succeeding measuring in a coil head with several locations.



AutoStart (structure test only) Automatic triggering when a test part approaches the test coil. AutoStart function has to be set individually in menu "Frequencies & Locations“.



External, “Ext.” (structure test only) Use of an external START-key which is connected to the coil plug e.g. structure test probes with integrated START-key.





Manual, short “Manu” (structure test only) ® Triggering of start only by START-key on the eddyvisor . The START-key of ® the eddyvisor may be used always for alternative triggering of a test unless locked by the key switch.

Method of start is set individually in the location bar or via the superset Start-key „logical Input“ for location 2 or higher. When selected an overview of the method of start appears, pressing again closes the overview. Pressing a method of start takes it.

Sort signal During Preventive Multi-Frequency Test an OK-i signal (OK-1..32 resp. OK-S) and NOK-i signal (NOK-1..32 resp. NOK-S) is created after the sorting decision of one or all locations. The sum signal "Result LOCATION 1-…" indicates that all locations are OK. The logical signals are assigned to a pin in menu "In and outputs". Description is as follows: VCONI-slot (3,6,7), connector on VCONI (A or B), pin (1..37) Example: „3A11“ means VCONI in slot 3, connector A, pin 11. If several outputs are assigned to one signal only one pin is given. It is recommended to use signals of the standard pin assignment only. The signal used is set for all locations individually in the location bar or via the superset key sort signal "logical Output". The sum signal is determined in the bar "result LOCATION 1-…". When selected an overview of all possible sort signals appears. Touching again closes the overview. Pressing a sort signal in the overview takes it. The symbol "---" removes the assignment. The time of sort signals is set individually for each location or via the superset key sort signal "Time" for all locations the same. Duration of sum signal is set in the bar "result LOCATION 1-…". When selecting a menu appears with the following possibilities: 



Arrow keys “▲” and “▼” allow to set a duration between 10 ms and 1,000 msec. SYNC_0 the sort signals disappear when start trigger (the start signal) disappears or when the station is stopped.


4-5

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

SYNC_1 the sort sort signal signals s disap disappea pearr when when the next next start start trigger trigger (the (the next next start start signal) signal) arrives or when stopping the station.



SYNC_2 the sort signals disappear just before the next sorting decision or when stopping the station. Thus a maximum maximum duration of sort impulse length is achieved. achieved.

End Signal After measuring of one resp. all locations, an END-i signal (END-1..32 resp. END-S) may be created. The signal used is set individually in the location bar or via the superset key end all loca locati tion ons s the the same same.. When When end signal signal "logic "logical al Output Output"" for all selecting an overview appears of all possible end signal. Touching again closes the overview. Pressing an end signal in the overview takes it. The symbol "---" removes the assignment. The time of end signal is set individually for each location or via the superset key end signal "Time" for all locations the same. The duration of sum signal is set in the bar "result LOCATION 1-…". When selecting a small menu appears to set: 

arrow keys “▲” and “▼” allow to set a duration between 10 ms and 1,000 msec.

Monitor sorting gate is set either “ACTIVE” or “not active”. If active, then: -

-

-

connec connectt a sensor sensor at input input „GatePos-i „GatePos-i““ which which is allow allowed ed to give give a +24V-sign +24V-signal al only when sorting gate is in NOK position. Ther There e is a direc directt assi assign gnme ment nt betw betwee een n the sum sum sign signal als s ENDEND-ii from from „resu „result lt LOCATION 1-...“ and „GatePos-i“: At END_1, GatePos_1 is used, at END_2, GatePos_2 follows a.s.o. the sum sort signal signal OK-i OK-i from result result LOCATION LOCATION 1-... is suppli supplied ed to contro controll a sorting gate. the sum end signal signal END-i END-i from result result LOCATION LOCATION 1-... is supplied supplied to control control a stopper stopper and in case case of NOK-pa NOK-parts rts delay delayed ed as long long as the input "GatePos "GatePos-i" -i" give gives s a +24V +24V-s -sign ignal al.. If dela delay y is more more than than 1 seco second nd a failu failure re messa message ge is generated and the station stopped.

If monitor sorting gate is set to "not active" monitoring is off.

4.3.3. Inputs and Outputs ®

The assignment of internal logical signals of the eddyvisor (Start-1, GatePos-S, etc.) to the physical inputs and outputs of the VCONI takes place.

4- 6


¡Error! Utilice Utilice la ficha Inicio para aplicar Überschrift Überschrift 1 al al texto que desea que aparezca aquí. ibg Doc: 0713431e 0713431e,, 29 May 2008 2008 ¡Error! Utilice la ficha Inicio para aplicar Überschrift Überschrift 2 al texto que desea que aparezca aquí. Manual eddyvisor SC

It is set in test assembly which logical signals are really used. In addition, there are signals which are always present (e.g. StatActive-1). It is recom recomme mend nded ed to work work with with the stand standar ard d assi assign gnme ment nt and and to do indi indivi vidu dual al settings only as an exception. The inputs and outputs work with 24Vdc-Logik and may be directly connected with switches, switches, sensors sensors (PNP-type, (PNP-type, +24V switching) switching) resp. sorting sorting gates and other load ® consumers. consumers. Control of the eddyvisor via a PLC is feasible as well. In order to increase the current load capacity of the outputs several output signals of one VCONI may be connected with the same logical signal and switched in parallel.

4.3.3.1. Selection of VCONI All available connectors are sorted according to the slot of the VCONI in the upper line and connector designator A or B; they may be selected by this identification, built of slot number and connector designator. Possible slots of the VCONI are slot 3 in desktop instrument model, slots 6 and 7 in switchboard integration model.

4.3.3.2. Monitor inputs, force outputs manually All input signals are asked every approx. 200 msec. and displayed. "ON" means +24Vdc input voltage. "OFF" means no input voltage. All outputs may be operated manually to check electrical wiring and function. Remark: When entering menu all stations must be stopped. Already started measurements are finished and may be looked at, only then the outputs may be switched manually and the set function function of inputs inputs and outputs is unassigned unassigned until leaving the menu. Pressi Pressing ng the key "Force releases s the output outputs s for manual manual "Force Outputs Outputs (manual)" (manual)" release oper operat atio ion n after after a safet safety y requ reques est. t. The name name of the the key chan change ges s to "Deforce Outputs“. Attention:

If the outputs are manually operated this may affect any connected instruments! If several outputs of a VCONI are switched in parallel in order to increase current load capacity, consider this when manual switching the outputs, danger of short circuit, however, does not exist as the outputs of the VCONI are pure +24Vdc-driver (HighSide Driver). The released outputs appear as key with name "OFF" for 0V resp. "ON" for +24Vdc. Pressing the key changes the condition of the key and the output. When there is no voltage at the corresponding pin of the connector, the voltage supply of the VCONI-


4-7


boar board d has has to be chec checked ked:: The The bridg bridge e conn connec ector tor has has to be put for supp supply ly from from internal voltage source or the VCONI has to be supplied externally with +24Vdc.

4.3.3.3. Allow Signal Assignment Each logical signal can be assigned to a physical input resp. output via the menu "Allow Signal Assignment". Logical input signals may be assigned only to one physical input. Logical output signals may be assigned to any physical outputs. After pressing the key, a safety request appears and the name of the key changes to "Quit Signal Assignment". It is reco recomm mmen ende ded d to work work with with the the stand standar ard d assi assign gnme ment nt and and to choo choose se othe other r proposals only as an exception. In very special cases only, an individual setting is necessary. Modifi Modified ed assign assignmen ments ts of signal signals s are displa displayed yed in blue blue colour colour.. Pressi Pressing ng the key restores es the the prev previo ious us assig assignm nmen ents ts and and pres pressi sing ng "Save "Discard "Discard changes" changes" restor settings" takes any changes. When leaving the menu a safety request asks if to take of discard assignments.

Standard Signal assignment A standard assignment of signals for each constellation of instrument is recommended. Pressing this key restores this constellation.

Show Proposal A menu shows different pre-defined connector assignments. Should the standard assignment not cover the case of application, other typical assignments are given here. The text right beside the selection field informs on the planned application. Touching the names displays the new assignment with blue changes. Selection has to be confirmed with key "Load Assignment" or leave the menu with key "Discard overview ew of all proposal proposals s is given given in chapte chapterr 6.3.1. 6.3.1. Propos Proposal al for Proposal". An overvi Signal Assignment.

Unassign all Pins All assignments between logical signals and physical inputs and outputs on this connector are unassigned and marked with "---".

Logical Signal Assignment - Selection window Pressing the keys for logical signals assigned to the inputs and outputs opens a windo window w "Logic "Logical al Signal Signal Assign Assignmen ment". t". There There are separa separate te menus menus for inputs inputs and outputs. The following signals are available at the moment:

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

Global signals, inputs o Global

o



SelfCalibOff ResetCnt-1 DisableStart

- Stop automatic calibration. - reserved - Stop START-signals.

PLC-IN Strobe-Type Strobe-Menu Strobe-Cmd Data-IN-0..7

- signals for remote control by PLC

Signals for structure test, inputs o Start-Signals

Start-1..32

- start signal for structure test.

o GatePos-Signals

GatePos-1..32, -S - message from sorting gate. 

Global signals, outputs o Global

ReqSelfCalib Counter-1 Busy-S WatchDog o



®

- message of eddyvisor : calibration due. - reserved - structure test is running. - reserved.

PLC-OUT - signals for remote control by PLC. OUT-Type OUT-Menu OUT-Cmd Data-OUT-0..7

Signals of structure test, outputs o End-Signals

End-1..32, -S

- test finished

o OK-Signals

OK-1..32, -S

- test result OK.

o NOK-Signals

NOK-1..32, -S

- test result not OK.


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o StatActive-Signals

StatActive-1..8 - station in reference data recording or in Preventive Multi-Frequency Testing. 

unused, unassignment of single signal assignments, symbol “---”.

4.3.4. System Properties ®

Basic settings like printer, integration of eddyvisor into a local network and date/time are managed in menu "System Properties" as well as some status variables are shown. Any changes may be discarded by key "Discard changes" unless they are explicitly saved by the key "Save settings". When changing menu a safety request asks if to store or discard changes or cancel change of menu. Pressing "Standard settings" sets all settings in this menu to standard value. Date and time are not influenced.

4.3.4.1. Printer setting Driver (printer language) Set the language of the printer which is used and with it the printer driver. The following languages are available: 









PS Level 3 Suitable for Post Script capable printers. PCL 6 (Laserjet) Suitable for laser printers which support PCL6 PCL 5C (Laserjet Color) Suitable for colour laser printers which support PCL5 PCL 5 (Laserjet) Suitable for laser printers which support PCL5e PCL 3 (Laserjet + Deskjet) Suitable for many HP Deskjet printers

HP printers resp. HP (PCL) compatible printers are exclusively supported (except from PS). The language of the printer can be found under technical data of the printer. Attention: HP printers with "LIDL" (Lightweight Imaging Device Interface Language) are not supported.

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Interface (USB or TCP/IP) Selects the interface of used printer. A local printer will be connected via USB, a network printer will be connected via Ethernet using TCP/IP. 

USB printer type

One USB printer type only is allowed to be connected. The first printer model which is connected after switching on resp. already connected will be used. Further connected printers are ignored. 

TCP/IP Network printer

In case of a network printer (TCP/IP) the IP-address of this network printer must be specified. A "standard-TCP/IP port" with following settings is used: - Protocol: - Port number: - SNMP:

Raw 9100 No

Paper size Determines the paper size. It may be selected between „letter“ and „(DIN) A4“.

4.3.4.2. Network setting of eddyvisor ® Obtain address, IP-address, Subnet-Mask ®

Determines where the eddyvisor gets its network address from. This setting is ® needed when the eddyvisor is connected to a local network. „DHCP“ (Dynamic Host Configuration Protocol) means that the network addresses are obtained automatically from a DHCP-server. In this case, no further settings are required. If "static" is selected, a valid IP-address in the network and the networks subnetmask have to be set. Remark: The subnet mask divides the IP-address into a forepart indicating the network and a back part indicating the user-ID.

Host-name of eddyvisor ® ®

The host name of the eddyvisor in the network is derived from the serial number ® of the instrument: e.g. „ev00123“ for eddyvisor S/N 00123. Remark: Many operating systems provide the command "ping" to check the network ® connection. Access to the eddyvisor S/N 00123 is tested with „ping ev00123“.


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4.3.4.3. Date / Time Change date and time of internal clock. Changes are taken immediately.

4.3.4.4. Form Company's name to be used in printouts.

4.3.4.5. Network-Log The measuring results of "reference data recording" and "Preventive MultiFrequency Testing" " or “Preventive Multi-Filter Testing” may be sent continuously to a network user. This taking down of measuring results may be switched on and off. The target address of log data is given either as hostname or IP-address. Remark: Not every network supports usage of a broadcast-ID.

4.3.4.6. Mouse pointer on/off A mouse pointer may be faded in for presentations with an external monitor.

4.3.4.7. System monitor The values of "CPU temperature", "Motherboard temperature", "CPU core voltage" and speed of fan 1 and 2 are displayed for diagnosis of system. These values are ® meaningless for operation of eddyvisor .

4.3.5. Part Type Administration The standard project includes part type 1 with name "standard" and "part number ® 01", refer to part type field on the eddyvisor in the upper left-hand side. This menu allows to create and individually name of part types. The available part types are listed in a table. 



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Selection key “►” Allows to select a part type. Type-No. Opens a window with two arrow keys “▲” and “▼” to s et the number of part type. Part type 1 cannot be renumbered.





Caption 1 Opens a window with a keyboard to type individual descriptions.



Caption 2 Opens a window with a keyboard to type individual descriptions.



Date Date when part type was created.

Touching the headlines sorts the list of part types according to the relating criterion. Several touching reverts order. The following actions are available to create and delete part types: 

Key "Add new Part Type“ Adds a part type to the list at the position with lowest number.



Key "Copy marked Part Type“ Copies the selected part type into the list at the position with lowest number. Does not copy reference and sorting data.



Key "Copy marked Part Type with Parts“ Copies the selected part type into the list at the position with lowest number. Does also copy reference and sorting data.



Key "Delete Part Type“ Deletes selected part type from the list. A different part type is automatically selected.



Key "Load in all stations“ ® Loads selected part type to all test stations of the eddyvisor . Does not leave the menu.

If part types are set up then the key Part type selection in the upper left-hand side of the screen may be used without calling the setup. It also opens the "Overview of saved Part Types" , however, the parts may only be sorted and loaded. A selected part type is load into the current resp. all stations with key "Load only in this station" and "Load in all stations" and the menu is left. The key "Cancel" leaves the menu without changes.

4.3.6. Frequencies & Locations (general) The test procedure of the individual stations and locations is significantly characterised by the test frequencies / band passes, settling delay and test time. Menu "Frequencies & Locations" allows to set all part type specific parameters. When changing menu a safety request asks if to store or discard changes or cancel change of menu.


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4.3.6.1. Activate / deactivate location ®

A test block of a station usually includes several locations. The eddyvisor supports testing of different part types. Often it is the case that a certain part type has to be tested at a certain location, another not. Locations may be excluded resp. included again by pressing the key "Deactivate LOCATION" resp. "Activate LOCATION". Name of key changes accordingly. Deactivated stations and locations are marked grey crossbred in the stations and locations bar and are not considered at testing. The information which locations are active resp. inactive for a certain part type is saved with the relating part type.

4.3.6.2. Standard settings This key resets all settings in this menu to standard settings.

4.3.6.3. Discard changes This key discards any changes before they were explicitly saved.

4.3.6.4. Save settings This key saves the setting for the currently selected location(s).

4.3.6.5. Save all settings This key saves the settings for all stations and locations.

4.3.7. Frequencies and locations (structure test) 4.3.7.1. Tolerance zone shape (ellipse / rectangle) The eddyvisor S may create both elliptic and rectangular tolerance zones and in Preventive Multi-Frequency Testing it checks the test results for keeping the tolerance. Switching between elliptic and rectangular tolerance zone shape is done by the tolerance zone keys A - F for each frequency. Pressing „TOL zone“ changes all tolerance zone shapes at the same time. The selected shape is symbolically shown in the key.

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If a tolerance zone in the tolerance zone editor is set to "manual" this condition is symbolically shown as a small hand in the key. If this key is pressed the tolerance zone is set to "automatic" and the manual changes of this tolerance zone get lost. When all locations of a station are displayed (key below "LOC") the tolerance zone shape (ellipse or rectangle) of all locations of one station can be changed at the same time. Tolerance zone shapes differing for all locations are marked with superimposed empty symbols.

4.3.7.2. Tolerance zone factor This factor indicates the enlargement (minimising) of the unified ellipse / unified rectangle to the valid tolerance zone. The unified ellipse is the smallest ellipse surrounding the measuring values. The same is valid for the unified rectangle. The tolerance zone factor can range between 0.8 to 9.9. Pressing the key „TOL zone Factor“ changes all tolerance zone factors at the same time. When all locations of a station are displayed the tolerance zone factors of all locations may be changed at the same time. Tolerance zone factors that are not the same for all locations are marked with ***. The tolerance zone factor is used in the same manner for automatically and manually created tolerance zones.

4.3.7.3. Frequency The test frequency may be varied in the range of 5.0 Hz to 250 kHz resp. 6.0 Hz to 300 kHz - depending on suppressed noise frequency. Up to eight measurings with different frequencies may be set for each location. When all locations of a station are selected the test frequencies of the locations may be changed at the same time. Test frequencies that are not the same for all locations of a station are marked with ***. Pressing the key "Standard setting" sets noise suppression for the current location to Not Active and the suppressed noise frequency 50 Hz. The key "Standard setting" sets AutoStart function to standard value. Pressing the key "Suppressed noise frequency" sets a noise frequency to be suppressed either to 50 Hz or 60 Hz. Pressing the key "Noise suppression" prolongs the measuring time of the single tests in order to suppress interfering influences due to line frequency. Noise suppression is achieved by prolongation of test time per frequency to integral multiple of the period of the noise frequency.


4-15


Noise suppression does not work at test frequency 50 Hz resp. 60 Hz. If there occur any interferences, these frequencies cannot be used. Pressing the key "Distribute Frequency" evenly distributes possible test frequencies to the amount of tests. The test frequency influences the separation of different test parameter. The selected frequency ratio (largest to smallest frequency) should be large for high test reliability. The frequency range must be within the allowed frequency range of the connected coil(s) – see coil labels.

4.3.7.4. Test time and settling delay The test time of a location is determined by settling delay and the following tests with different frequencies. When noise suppression is active, the measuring time of the single tests is prolonged in order to suppress negative influences due to line frequency. The lower side of the screen shows the test time for the selected location and the total test time for all locations of the station. The time between appearance of START-signal and start of the actual test is set by key "Settling delay" between 0 and 5,000 msec. It guarantees that the new arriving test part has enough time to position well in the test coil. A too short settling delay increases the scattering values of testing at external Startsignal and AutoStart. A too long settling delay reduces throughput. For locations with start triggering AFTER, it has to be checked if a delay time after the preceding test is necessary. If not, settling delay should be set to 0 msec in order to keep the total test time as short as possible.

4.3.7.5. AUTOSTART Configuration The eddyvisor S supports automatic parts recognition in coils and thus start triggering for any locations. It must be selected as "AutoStart" in test assembly for the relating locations. "AutoStart" function works with a frequency fed to the test coil for parts recognition and is set for each location separately:

AutoStart Frequency In mode AutoStart, the AutoStart frequency is quasi permanently present to the coils for which AutoStart is set between the single tests. The AutoStart frequency should not be too low in order to avoid heating of coil.

4-16



AutoStart recognises approaching of test part to coil by means of AutoStart frequency. An AutoStart frequency of approx. 2/3 of the selected test frequency range is sensible for most applications.

Threshold If the delta value d reaches the threshold (e.g. 3,000) the AutoStart condition is fulfilled. If the eddyvisor S is in mode reference data recording or Preventive Multi-Frequency Test this would trigger the start of this location. Thus the threshold must be exceeded when a test part approaches the coil in order to trigger a test. If the threshold is set close to the max. occurring delta value the test is triggered just before the final location of the test part. A practical value is approx. 75 % of the max. delta value. The threshold is adjustable with the visible arrow keys in the range of 250 up to 11,500.

x/y coordinates The AutoStart frequency is quasi permanently present at the test coils of a location, the x/y coordinates of the AutoStart frequency are noticed and displayed. At an empty coil this can be e.g. x = 9,500 and y = 5,300. When the test part approaches the coil these values change considerably.

u/v coordinates The x/y coordinates are stored in u/v by pressing the key „accept u/v“. This key has to be pressed at empty coil.

Delta-value d The delta value d is the distance between the value stored in u/v and the current x/y value. The AutoStart is not securely triggered when the delta value is too low (perhaps select different AutoStart frequency). The d displays if the coil voltage with test part (x/y) supplies a delta value high enough compared with the empty coil (u/v).


4-17

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC ¡Error! Utilice la ficha Inicio para aplicar Überschrift 2 al texto que desea que aparezca 29 May 2008, ibg Doc: 0713431e aquí. u/v values are free / fix If this value is free the coil must be empty when activating the eddyvisor S in mode reference data recording or Preventive Multi-Frequency Test. The eddyvisor S determines the u/v values anew every time when activating reference data recording or Preventive Multi-Frequency Test. If this is the case, the test is - as required - triggered with full coil (test part in test coil). If this is not the case, the test is triggered at empty coil which results in faulty triggering. In mode u/v values are fix, the u/v values in the eddyvisor S are NOT determined anew when switching to mode reference data recording resp. Preventive Multi-Frequency Test, they are quasi "frozen". The coil may now be "filled" when changing to an active mode, aforementioned faulty triggering will NOT occur. Remark: The key "Default settings" resets the AutoStart function to standard value.

4.3.8. Frequencies and locations (crack detection) 4.3.8.1. Band pass and tolerance zone The eddyvisor C is capable of evaluating the signal of a crack detection probe at the same time in 30 band passes. The mentioned band pass frequency is its centre frequency. Each band pass may be activated or deactivated at request by touching the frequency. A deactivated band pass is furthermore shown palely, however does not influence the result. Each band pass has its own tolerance zone. There are three setting possibilities for each of the 30 band passes.

4-18



kind of tolerance zone creation (not implemented)



tolerance zone factor amplitude



tolerance zone factor angle



4.3.8.2. Tolerance zone factor The total of all polar fields of the reference data for one band pass results in a "wrapping" polar field. This polar field may be widened in amplitude and in angle in order to create the tolerance zone for testing. The left figure is the factor for the amplitude by which the tolerance zone is widened. The right figure is the angle by which the tolerance zone is widened.

4.3.8.3. Sender frequency The frequency for the sender winding of the probe is determined. The acceptable frequency range of the probe has to be considered.

4.3.8.4. Tolerance zone factors commonly operated If this is selected, the tolerance zone factors (amplitude and angle) for all 30 tolerance zones are modified at the same time. This the basic setting. In special cases only, it is sensible to select different values. Attention: This setting acts also to the direct shifting of tolerance zone factors in reference data menu.

4.3.8.5. Threshold Two thresholds are available. The first threshold is always lower than the second one. The relating warn-output is activated when the separation figure exceeds the stated threshold. The threshold does not influence the actual sorting result. It can be changed in 5 % steps.

4.3.8.6. Settling delay The time between appearance of START-signal and start of the actual test is set by key "Settling delay" between 0 and 5,000 msec. As this is rather unusual at crack detection the standard setting is 0 ms.

4.3.8.7. End of test after … End of test after end of start signal As long as the set start signal is active testing runs (exception: settling delay). As soon as the start signal is inactive testing ends.


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End of test after time period Testing ends automatically after a pre-selected time. ATTENTION: This time is also kept when changing from reference data or sorting into the setup menu.

End of test after xxx revolutions Test ends automatically after a pre-selected amount of revolutions. ATTENTION: It is stopped only when the amount of revolutions is finished. In order to guarantee proper function, also when trigger is missing (stopped lathe), this function is only allowed in combination with speed monitoring. If speed is fallen below the set limit, testing is finished and the part is marked as "bad".

End of test after lift-off Test ends automatically when the maximum allowable distance is achieved.

4.3.8.8. Lift-off compensation monitoring If a crack detection probe with lift-off compensation is used the allowable distance can be monitored. If distance exceeds the range of lift-off compensation (2.0) the test part is marked as "bad". The value of the maximum allowable distance can be decreased here. Test systems may be monitored which work with very narrow tolerances. If lift-off compensation is not required it can be deactivated.

4.3.8.9. Monitoring of probe (noise threshold) The noise threshold recognises if at least in one band pass the valid tolerance zone is achieved with the set percentage. This enables detection of probe defects like short circuit or break but also mechanical defects like probe is not near part or part is not rotating.

4.3.8.10. Speed monitoring Speed monitoring guarantees that the part does not rotate too slowly or too fast during testing. At least two trigger impulses must be recognised. If speed monitoring is not required it can be deactivated (off).

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4.3.8.11. Frequency range proposals Selection of range of band pass: 

20 kHz - 25 Hz

(only for very high surface speeds)



10 kHz - 12 Hz

standard



5 kHz - 6 Hz

(only for very slow surface speeds)

4.3.8.12. Setup Lift-off compensation A menu for setting of lift-off compensation opens. This setting is imperatively necessary when the probe is exchanged or the length of the probe cables is changed. At big differences in material, new setting can be necessary. For this case, setting can be done part type specifically.

Put probe in air (without part) The operator confirms by pressing this key that no part is near the probe. The distance should be more than 5 mm.

Put standard distance (0.7 mm) The operator confirms by pressing this key that the probe - part - distance is at standard. The standard distance is 0.7 mm. When using special probes or due to mechanical reasons (in tight limits) another distance than 0.7 mm may be determined.

4.4. Reference Data In mode reference data, OK parts are read and the tolerance zones are created. The data are the basis for the sorting decision in mode Preventive Multi-Frequency / Multi-Filter Test. A station in mode reference data recording is running when a yellow triangle in the upper left-hand corner of the station bar is on. The recorded reference data can be displayed differently, refer to point "4.6. Display options" from page 4-26.


4-21


4.4.1. Data recording active Pressing the key "Activate data recording" activates stations to the status reference data recording runs and the description of the key changes to "Data recording active". The first activated location of the station is sensitive for incoming start signals. As soon as it is started, in general all other activated locations are also sensitive for start signals. Touching the START-key triggers measuring at the current station and location, independently from set start signal. Structure test, the test stops after the test time itself. Crack test, the test is ended by pressing the STOP-key. ®

Locations connected with AFTER: the eddyvisor starts the next measuring, not connected with AFTER and thus triggers all measurings connected with AFTER.

4.4.2. Data recording stopped Pressing the key "Data recording deactivate" sets stations to the status reference data recording STOPPED and the description of the key changes to "Data recording stopped". Recording of reference parts is finished, still missing locations are marked accordingly. This can be seen by selection of the relating location: a question mark is shown instead of position of selected measuring in the tolerance zones.

4.4.2.1. Navigation in parts Two arrows appear in the lower right-hand corner in mode reference data recording stopped. These two arrows serve as navigator within the reference parts. The measuring data of the single locations are accessible with location keys, not recorded locations are displayed in the tolerance zones as question mark. A reference parts history is positioned down left, one stroke per reference part. Usually all strokes are green and a white arrow indicates the selected part. Not completely recorded parts are stroked grey. Marked reference part are red. The height of the strokes means the position of reference data regarding the tolerance zones. A parts counter is downright beside the history. It shows the number of selected parts, the amount of recorded and marked reference parts. Furthermore, the validity of the selected part and the time stamp of data recording are displayed.

4-22



Touching the parts counter toggles between amount of all reference parts and amount of marked parts and thus navigation between all parts and marked parts is toggled. For further hints refer to point "4.6.3. Parts counter and history" from page 4-31.

4.4.2.2. Mark reference parts In mode reference data recording stopped individual reference parts may be marked and so excluded from creating tolerance zones. Reference parts are marked by key "Mark Reference Part" resp. "Unmark Reference Part " and so excluded from creating tolerance zone resp. again be used for tolerance zone creation. The text of the key changes accordingly. The key "Delete Reference Data of this STATION" deletes all data after a safety request. The key "Delete all marked parts" deletes all marked reference parts without safety request.

4.4.2.3. Tolerance Zone Editor (structure test) It might be necessary, in special cases, to modify a tolerance zone manually. By pressing the key "Tolerance Zone Editor" the tolerance zone changes to a yellow headline with the name "Tolerance zone editor". The following keys appear: 

Tolerance zone factor - enables scaling by a factor to be set between 0.8 and 9.9.



Ellipse / Rectangle - changing the shape of the tolerance zone between ellipse and rectangle.



Tolerance zone manual - after a safety request, further keys appear which enable free selectable position of the ellipse in the space independently from the reference data. This function should be applied by specially trained personnel only. Manually modified tolerance zones are marked accordingly. The key "Tolerance zone automatic" cancels the manual setting of the tolerance zone.



Undo - discards any changes since latest access of the tolerance zone editor. The tolerance zone editor is not left.



Exit tolerance zone editor - after a safety request, the tolerance zone editor is left with resp. without acceptation of changes.


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4.5. PMFT - Preventive Multi-Frequency / Multi-Filter Test In mode Preventive Multi-Frequency Test, parts are tested and classified as OK or NOK part depending the tolerance zones. A station in mode test is running shows this by a green triangle in the upper righthand corner of the station key. The recorded sorting data may be displayed differently, refer to point "4.6. Display options" from page 4-26.

4.5.1. Testing active By pressing the key "Activate Testing" stations are set to status testing and the description of the key changes to "PMFTesting active". The first activated location of the station is sensitive for incoming start signals. As soon as it is started, all other activated locations are sensitive for start signals. Structure test, the test stops after the test time itself. Crack test, the test is ended by pressing the STOP-key. Touching the START-key triggers measuring at the current station and location, independently from set start signal. Structure test, the test stops after the test time itself. Crack test, the test is ended by pressing the STOP-key. ®

Locations connected with AFTER: the eddyvisor starts the next measuring, not connected with AFTER and thus triggers all measurings connected with AFTER. The function of the parts counter is explained in the following chapter.

4.5.2. Stop testing Pressing the key "Stop Testing" all stations are stopped and the description of the key changes to "Testing stopped". Recording of test parts is finished, still missing locations are marked accordingly. This is visible by selecting the relating locations. A question mark is visible in the tolerance zone instead of the position of the selected measuring. A yellow field with two arrow keys appears in the lower left-hand side of the touch screen. Pressing these arrows switches between the test parts.

4-24



4.5.2.1. Navigation in parts In mode testing stopped, two arrow keys appear in the lower right-hand corner of the screen. The arrows allow to toggle between reference parts. The measuring data of the single locations are accessible by location keys, not recorded locations appear as question mark in the tolerance zones. A test parts history with a stroke per test part is placed on the lower left-hand side. Good parts create a green, bad parts a red stroke. Incompletely recorded parts are grey strokes. Parts which were tested before a change of test conditions (change of tolerance zone or similar) have a yellow shade. A white arrow indicates the selected part. The height of the strokes means the position of measuring data regarding to the tolerance zones. The largest relative distance to the tolerance zone is displayed over all angle steps. For further hints refer to point "4.6.3. Parts counter and history" from page 4-31.

4.5.2.2. Parts Counter The parts counters are placed at the lower right-hand side beside the history. They show the number of the selected part, the amount of tested parts and the OK- and NOK-sorted parts. Furthermore the time stamp of testing is shown. Touching the parts counter shifts between amount of all test parts, amount of NOK parts and amount of OK parts and thus navigation between all test parts, NOK parts and OK parts is switched. At running test, the parts counter shows the amount of recorded parts and is automatically increased. The sum of OK parts and NOK parts is displayed as absolute figure and as percentage in relation to sum of test parts. The key "Reset Parts Counter" resets the counter for test parts, OK parts and NOK parts to 0 and deletes parts history. For further hints refer to point "4.6.3. Parts counter and history" from page 4-31.

4.5.2.3. Screen off The screen may be switched off by pressing this key. This extends the life time of the TFT backlight. By touching the touch screen at any point it comes up again.


4-25


4.5.2.4. Add test part to Reference Data Pressing key “Add test part to Ref.-Data” adds data of the selected test part to the reference data, the tolerance zones of all locations are calculated anew. Due to the new tolerance zones the tolerance zone distance of already tested parts changes as well. The parts which are tested and sorted with old tolerance zones are therefore displayed with a yellow shade on the parts history.

4.5.2.5. Tolerance Zone Editor (structure test) In special cases, it can be necessary to change a tolerance zone manually. The key "Tolerance Zone Editor" enables manual access to tolerance zones without prior switching to mode reference data recording. For further hints refer to point "4.4.2.3. Tolerance Zone Editor (structure test)" from page 4-23.

4.6. Display options 4.6.1. Structure test Several options are available to display the test results. Standard is: Locus curve display in "reference data" and bargraph display in "Preventive Multi-Frequency Test".

4.6.1.1. Locus curve display This display refers to one position of one station. The results of all test frequencies are displayed at the same time in a common x/y coordinate system, thus the name locus curve display. All tolerance zones of one position as well as the measuring points are displayed in one common screen area. By touching the key " Show TOLzone labels", the letters of the test frequencies A - H are shown. By touching the screen area, it is switched to tolerance zone display - all.

4.6.1.2. Tolerance zone display - single A single tolerance zone of one position is displayed.

4-26



The tolerance zone as well as measuring points are displayed in one common x/y coordinate system. By touching the screen area, it is switched to tolerance zone display - all.

4.6.1.3. Tolerance zone display - all This display refers to one position of one station. All tolerance zones of one position are displayed at the same time. An x/y coordinate system with tolerance zone and measuring points is displayed for each frequency. The tolerance zones - headlines or keys - are named as follows (from left to right): - station and location 1.1 - 8.32 if needed - test frequency letter A - H - tolerance zone factor 0.8 - 9.9 - scale for tolerance zone 100 mV - 20.0 V - test frequency 5.0 Hz - 250 kHz resp. 6.0 Hz - 300 kHz By touching the screen area of a tolerance zone, it is switched to tolerance zone display - single.

4.6.1.4. Bargraph display Bargraph display is available for Preventive Multi-Frequency Test only. Following versions exist: 

as overview of all stations; with parts counter, sorting result and small bargraph diagrams of all locations. Touching the bargraph diagram of a station switches to the overview of the station.



as overview of all locations of one station; with bargraph diagram of one critical frequency to each location. Touching the bargraph diagram of a location switches to the overview of the location.



as bargraph diagram of each frequency of one location - classic display; with setup data and small tolerance zone of each frequency. Touching the bargraph diagram switches to locus curve display.

The distances of the measured part to the relating tolerance zone are displayed as bargraph. A green bargraph signals that the part is within the tolerance zone at that frequency. A red bargraph signals that the part is outside and therefore a bad part.


4-27


Right beside the bargraph, the relative distance to the edge of the tolerance zone is numerically displayed.

4.6.2. Crack detection Several options are available to display the test results. Standard is: xyt-display (one tolerance zone) in "reference data" and bargraph display in "Preventive MultiFilter Test".

4.6.2.1. Outline bars 30 small bargraphs are displayed on the left-hand side for all test data display options. Each bargraph is inscribed with the centre frequency of the band pass and poses the largest achieved distance value for a band pass. The distance value (separation figure) arises from the comparison of test signal and tolerance zone of this band pass. That value is displayed where the signal is closest to the tolerance zone resp. it exceeds at the most. When the bargraph reaches the centre line then the tolerance zone is just reached (distance resp. separation figure = 1). Values  1 are "good" (green) and values  1 are "bad" (red); like at structure test. While a part is tested the present value (live) is displayed as inner, filled bargraph. The maximum value for this test part since start of test is displayed as outer bargraph (outline bar).

Bargraph for probe distance (lift-off) If lift-off compensation is used, an extra bargraph is shown under the outline bargraph indicating probe distance. The centre line of this bargraph is standard distance. The left limitation is close to the part (gain correction -6 dB), the right limitation is far away from the part (gain correction + 6 dB). As long as the probe distance stays within this limitation the signal is lift-off compensated. While a part is tested the present value (live) is displayed as inner, filled bargraph. The minimum and maximum value for this test part since start of test are displayed as outer bargraph (outline bar).

Sender frequency The sender frequency is displayed above the outline bargraph.

4-28



The sender frequency may be changed in "Setup" / "Frequencies & Locations" but also in menu "Reference Data" provided that data recording is stopped.

4.6.2.2. Tolerance zone display - single (xyt-display) A single tolerance zone (a single band pass) of one location is displayed. The scrollbar beside the outline bar enables selection of the tolerance zone (band pass) to be displayed. By touching the screen area of the x/y- or xy(t)-display, it is switched to tolerance zone display - all.

x/y-display The tolerance zone (green), the polar field of the selected test part (orange) and when testing activated also the live-signal (white) are displayed in one common x/ycoordinate system.

y(t)- and x(t)-display The live-signal is shown on a time axis. It is very recommended to use a trigger signal (one impulse per revolution) for a sensible display. The trigger point is leftmost on the time axis. The time axis is automatically scaled to exact two revolutions (different from oscilloscope) as far as trigger signals are available. This enables an allocation of position of crack to rotation angle.

Further elements Scaling of display in mV /div (zoom) The largest value of a tolerance zone is always 1 V amplitude due to automatic setting of gain. This corresponds to 500 mV / div two small boxes in standard setting. The display is so most often sensibly scaled. The display can be "zoomed" by means of manual selection of a different scaling. This enables visualisation of very small or very big signal portions. This scaling refers to x/y-, y(t)- and x(t)-display, however, does not influence the test. Tolerance zone factor


4-29


The total of all polar fields of the reference data for one band pass results in a "wrapping" polar field. This polar field may be widened in amplitude and in angle in order to create the tolerance zone for testing. The left figure is the factor for the amplitude by which the tolerance zone is widened. The right figure is the angle by which the tolerance zone is widened. Amplification The necessary amplification is automatically calculated from the tolerance zone. By this, the tolerance zone is standardised to the maximum amplitude of 1 V. With an amplification of 100 dB, e.g., an input signal of 10 µV is amplified by 100 dB (multiplied with 100,000) and so displayed with 1 V amplitude on the screen. The amplification may be indirectly changed by changing the tolerance zone factor amplitude (the first value). When the tolerance zone factor is doubled, the necessary amplification is only half as big. It reduces by 6 dB. When the tolerance zone factors are operated commonly, the amplification for all band passes can be changed at the same time although the band passes uses different amplifications. Speed While a part is tested the present value of the speed is displayed. After end of test the minimum and maximum speed is displayed occurred during the test.

4.6.2.3. Tolerance zone display - all All tolerance zones (green) and all polar fields of the selected test part (orange are displaced at the same time. Each of the 30 small x/y-coordinate systems additionally show the centre frequency of the band pass and the amplification. The display option is suitable to get a quick overview of signals generated by the test part. Here, at one glance, all amplification factors can be checked and the "roundness" resp. the shape of the polar fields can be assessed. Touching the screen area of a not yet selected tolerance zone, it is selected. Only for the selected tolerance zone, also the live-signal (white) is displayed when testing is activated. Touching the screen area of an already selected tolerance zone, it is switched to tolerance zone display - single.

4-30



4.6.2.4. C-scan display Here, the reeling off of the test part three-dimensionally (as waterfall) is displayed. Each revolution supplies a "line", each line starts on the left with the trigger. The live-signal of the selected band pass is displayed, standardised to the tolerance zone.

4.6.2.5. Bargraph display Bargraph display is only available in Preventive Multi-Filter Testing. A cut-out of 9 bars out of the 30 small bars is displayed enlarged. The cut-out can be selected by the scrollbar. Each bar is inscribed with tolerance zone factor, amplification and centre frequency of the band pass and poses the largest achieved distance value for a band pass. The distance value (separation figure) arises from the comparison of the test signal with the tolerance zone of this band pass. That value is displayed where the signal is closest to the tolerance zone resp. it exceeds at the most. A green bar signals that the part with this band pass is within the tolerance zone. A red bar means that the part is outside and thus "bad". Right beside the bargraph, the relative distance to the edge of the tolerance zone is numerically displayed. While a part is tested, the present value (live) is displayed as inner, filled bargraph. The maximum value for this test part since start of test is displayed as outer bargraph (outline bar). In addition, the largest of all 30 bargraphs is separately displayed.

4.6.3. Parts counter and history The parts counter (downright) show - at running test - the latest tested part and so the amount of tested part. At sorting data, additionally the amount of good and bad parts and the percentage is displayed. At reference data, additionally the amount of marked parts is displayed. At stopped test, the parts counters show the number of the just selected part. The total amount of parts is now displayed as "of xxx parts". Two navigation keys appear downright to browse between the parts. Under the parts counter the time stamp of the test is shown for each part. Down left, the history is shown. Each new part creates a small stroke on the righthand side of the history and all older strokes move to the left. The height of the stroke indicates the distance to the tolerance zone.


4-31


Good parts create a green, bad parts a red stroke. Incompletely tested parts appear as grey stroke. Parts which were tested before a change of test conditions (change of tolerance zone or similar) have a yellow shade. When test is stopped a white arrow emphasises the just displayed part in the history. Two navigation keys appear downright to browse between the parts. Reference data are always visible in history. In sorting data, the history may date back further although only max. 300 parts at once can be displayed. Depending on the amount of used locations up to 1,000 parts can be stored. Left beside the normal history, an additional bad parts history for 100 bad parts is implemented. When the storage of the normal history is full the oldest part is deleted only when it was a good one. If it was a bad part it is moved to the bad parts history. This enables that data of bad parts can be viewed even then if a lot of good parts have been tested afterwards. These bad parts keep their number and time stamp, so the history can be helpful with only a few bad parts and long automatic operation. Touching the parts counter determines which parts are browsed, this eases browsing in the history. In standard case, all parts are browsed. It is also possible to browse bad parts only. This is helpful when only a few bad parts are strewed within the history.

4.7. Key switch - authorisation level ®

The key switch allows to switch the eddyvisor on and off as well as to protect the eddyvisor ® from unauthorised or unintended operation. During normal operation it is - for safety reason - not possible to modify any setting ® of the eddyvisor . Modification of test assembly or allocation of inputs and outputs will have wide consequences and are usually necessary only when installing the test instrument and case of application. The positions of the key switch are as follows: 



Key switch horizontal left eddyvisor ® is off. Key switch vertical

eddyvisor ® is on and authorisation level is standard. 

4-32

Key switch horizontal right eddyvisor ® is on; when turning key switch into horizontal right position authorisation level is requested and stored.



The individual authorisation levels are as follow: o

Basic level ® All functions of the eddyvisor are free.

o

Standard (key vertical) Access only via vertical key switch. In addition to authorisation level "reference data", the menus "Project & Language“ to save and call projects, "System Settings", "Part type" and "Frequencies & Locations" are free in setup.

o

Reference data In addition to authorisation level "Part Types", reference parts may be recorded and tolerance zones edited. Part types may be generated and deleted.

o

Selection of part type In addition to authorisation level "test mode", part types may be selected.

o

Test mode The Preventive Multi-Frequency Test can be stopped and started, the START-key is active, parts counters can be reset. Setup settings, reference data and tolerance zones may be seen but not changed.

o

None (Total lock) Touch panel ignores user commands.

The key switch may be drawn at any position. In case of power failure or switching ® off the eddyvisor by external mains plug, the switching off condition is restored after switching on the instrument again. ®

Hint: If the following message appears during operation of the eddyvisor Insufficient Authorization Level

the requested action is locked by the key switch. The action has to be released by the key switch.


4-33


5. Data recording via network with eddyLogger At present, this function is implemented for structure test only. The measuring results of "reference data recording" and "Preventive MultiFrequency-Testing" may be sent continuously to a network user. This taking down of measuring results is set in menu "Setup / System Settings". The program „ eddyLogger “ is available for accepting the data. It enables recording ® of measuring results of several eddyvisor instruments in plain text in .csv files which may be handled by usual spreadsheet programs like e.g. Excel.

In the field „New File every ..." is set: start a new log-file after a certain amount of entries or after a certain time period. Too large files are avoided. In the field „Status“ is shown: 

„Started:“ Date and time of program call,



„Logs Started:“ amount of totally created log files,


5-1




„Received:“ amount of received measuring results (single measuring and test result for all parts).



„Lost:“ amount of obviously lost measuring results. The eddyvisor transmits the data with a consecutive number.

®

In the field „Log Folder“ the index is shown where the log files are stored. Pressing „...“ opens an index structure for alternative selection. Does the index not exist when start logging or are writing rights missing, an alarm message appears. Logging may be set either to „All Instruments“ or „Specified Instruments“. ® „All Instruments“ means that the measuring results of all eddyvisor instruments are entered in one log file. ® „Specified Instruments“ means that the serial number of the eddyvisor instrument are given as five digits and logging is started individually. In the field „Log“ is shown which logging is now active. The key „Stop All and Exit“ finishes the program after a safety request and saves the settings. File name and log file have the following format: „All Instruments“ mode: „EVLog_“ + „SNxxxxx“ + date + time + „.csv“ e.g. “EVLog_SNxxxxx_2006-04-04__12_12_59.csv“ „Specified Instruments“ mode: ® „EVLog_“ + S/N of eddyvisor + date + time + „.csv“ e.g. “EVLog_SNxxxxx_2006-04-04__12_12_59.csv“ The log files have the following format: 03.04.06 14:08

Instrument

S/N: 00103

Timestamp Part Type

03.04.06 13:11

1

LOG

STARTED

Part No

M ode

11

REFERENCE

Stati on

Positio n

1

1

03.04.06 13:11

1

11

REFERENCE

1

S/N: 00103 03.04.06 13:11

1

11

REFERENCE

1

1

1

TESTING

1

S/N: 00103

S/N: 00103

03.04.06 13:11

03.04.06 S/N: 00103 13:11 S/N: 00103

03.04.06 13:11

1

1

TESTING

1

1

1

TESTING

1

2 SUM

R esult

ok ok

Frq A

x

y

Dist

25.0 Hz

0

0

...

Frq H

x

y

Dist

100

... 25.0 kHz 0

0

100

... 25.0 0 kHz

0

100

25.0 Hz

0

0

100

25.0 Hz

0

0

0

... 25.0 kHz

0

0

0,06

25.0 Hz

0

0

0

... 25.0 kHz

1

0

0

25.0 Hz

0

0

100

25.0 kHz 0

0

100

OK 1 2

SUM

ok ok OK

S/N: 00103 -15 Lost Message

5-2

S/N: 00103

03.04.06 15:48

1

1

REFERENCE

2

S/N: 00103

03.04.06 15:48

1

1

REFERENCE

2

1 SUM

ok OK


. ..


S/N: 00123 03.04.06 15:50

03.04.06 17:31

1

2

LOG

REFERENCE

1

1

ok

250 Hz

0

0

100

. ..

STOPPED

The first and the last line include date and time at the beginning resp. at the end of logging in this file. ®

The measuring results of a test location are entered with S/N of eddyvisor , date and time of measuring, part type no., part no. with regard to reference data recording resp. Preventive Multi-Frequency Testing, station no., location no. resp. note of sum result (always „OK“ at reference data) and detailed information on set test frequency.


5-3


6. Connection with automatic sort systems 6.1. Automatic test, program course ®

Integration of eddyvisor into automatic test systems may be performed easily as all handshake signals required are already available An example flow chart is shown hereunder. The test part is transported automatically into the test coil, test is started with external START-1 signal, test end is indicated using END-1, and depending on sorting decision OK-1 the part is transported further.

END-1 = 0 ?

® signal of eddyvisor :

no

START-1 END-1 OK-1

yes Is part ready for test?

input "start of test 1“ output "test 1 finished“ sort out put "par t 1 OK“

no

yes

START-1 creation impulse to trigger test no

END-1 = 1 ?

no

START-1 control time ended

yes

yes

OK-1 = 1 ?

failure message „wrong mode or ® failure of eddyvisor “

no

yes

transport test part to OK channel

test part transported? yes

transport test part to NG channel

no

test part transported?

correct mode resp. remedy fault

no

yes


example: Course of program of an automatic test

6-1


6.2. Time diagram tson

tsoff

START-1 tbon

tpause

BUSY-S tboff

END-1

tend

Zeit

OK-1

tok

SYNC1

OK-1

SYNC2

OK-1

min.

typ.

max.

tson

2.5

-

-

ms

tsoff

2.5

-

-

ms

tbon

0.5

-

2.8

ms

tboff

-

1.0

-

ms

tpause

0

-

-

ms

tend

10

-

1000

ms

tok

10

-

1000

ms

tson, tsoff:

time for high resp. low signal of START

tbon:

reaction time of eddyvisor to Start-signal without considering self-calibration, at release of start

tboff:

off-delay of the Busy-signal

tpause:

time for pause between consecutive measurements

tend, tok:

time interval to be set for END- and Sort- (OK-, NOK-) signals.

®

synchronous sort impulse length: SYNC1:

6-2

sort outputs (OK/NOK/OKS/NGS) are switched off when next start signal arrives



SYNC2:

sort outputs (OK/NOK/OKS/NGS) are switched off just before the next sort decision


6-3


6.3. Electronic diagram of interfaces VCONI-connector A, B E+24V EGND 5k4

1 20 2 21 3 22

16 inputs max. 30V

4 23 5 24 6 25

5k4

7 26 8 27 9 28 10 29 11 30 12 31 13 32 14 33 15 34 16 35 17 36 18 37 19

16 outputs à max. 0.6A

D-Sub 37

Outputs of the VCONI may be switched in parallel in order to increase current load capacity (max. 4 outputs recommended).

VCONI-connector C 4

1

Phoenix RM5,08 FKCVW 2,5/4-STF-

6-4

1 - GND 2 - +24V 3 - E+24V 4 - EGND



®

Pin 1 and 2 are connected with a 24 Vdc power supply of the eddyvisor , current load is max. 2.5 A. The following pins have to be used with this power supply: Pin 1 with Pin 4; Pin 2 with Pin 3. Also refer to "6.4.1. Current supply for in and outputs" page 6-7.


6-5


6.3.1. Proposal for Signal Assignment It is recommended to work with the standard assignment and to choose other proposals only as an exception.

eddyvisor S

Standard allocation

VCONI 3A/6A

6-6

VCONI 3B/6B



6.4. Example Opto-Interface 6.4.1. Current supply for in and outputs eddyvisor ® VCONI E+24V

+ C

EGND 24V max. 2.5A

B

A 28

4

3

24GND +24V

2

1

E+24V

9

37 10

28 19

9

37 10

19

EGND

ext.+24V

ext.+24V

ext.GND

ext.GND

--> I/O-module 2x 4mm²

--> I/O-module a) <-- supply 24Vdc extern +24V

C

extern GND

4

3

24GND +24V

2

1

E+24V

EGND

b) internal 24Vdc power supply

Current supply of output drives of the VCONI-board is done via connector C, pin 1 and 2. Basically, 24 Vdc supply is from an external power supply, refer to a) in the figure. At low load, the internal 24 Vdc power supply of the measuring unit may be used as well, refer to b) in the figure. The max. load of the internal 24 Vdc power supply is 2.5 A. It has an electronic overload fuse and is available for all VCONIboards. The 24 Vdc pin of connectors A and B may be used as current supply of single sensors or IO modules with low load.


6-7


6.4.2. Interface for universal sorting device

bl

StartT1 button

S1

M

br +

PNP sw START-1

GATEPOS-S

1

eddyvisor ® VCONI

EGND

8

E+24V

9

10

connector A E+24V

plug

C

EGND

31

13

32

35

17

OK-S

36

19

END-S

28

37 EGND

sorting device coil

SRT

STOP

1

1 A1 A2

gate

stopper

A1 A2

2

2

The figure shows the connection for an universal sorting device to a VCONI-board, connector A. Several outputs are connected with the same signals and switched in parallel in order to increase the current load capacity. Start key T1 starts measuring via an input assigned to signal START-1. Outputs connected with signal OK-S and END-S control the gate and the stopper of the sorting device. Set “Sort Gate Monitor is ACTIVE” to monitor the gate position via sensor S1.

6-8



6.4.3. Test on consecutive locations controlled by PLC

PLC digital output 24V DC A X.0

A X.1

A X.2

A X.3

L+ A X.4

M

START-1 START-11 -

eddyvisor ® VCONI

EGND

-

E+24V

9

10

connector A / B E+24V

plug

C

EGND

END-1

E X.0

-

-

END-11

E X.1

OK-1

E X.2

OK-11

E X.3

-

-

19

STAT ACTIVE-1

E X.4

E X.5

28

37 EGND

E X.6

PLC digital input 24V DC

E X.7 M

extern 0V

Signal START-1 triggers first measurement, signal START-2 triggers the remaining measurement. EDN-1 quits each measuring. END-S quits the end of sequence of measurement as sum signal. OK-1 gives the result of each single measurement. OK-S gives the total result as sum signal. StatActive-1 informs station 1 ready for measuring.


6-9


6.4.4. Part type switching controlled by PLC

PLC digital output 24V DC A X.0

A X.1

A X.2

STROBE DATA TYPE IN-0 -

eddyvisor ® VCONI

A X.3

DATA IN-1

-

-

L+ A X.4

M

DATA IN-2

EGND

-

E+24V

9

10

connector A / B E+24V

plug

C

EGND

OUT TYPE

E X.0

-

-

DATA OUT-0

E X.1

DATA OUT-1

E X.2

DATA OUT-2

E X.3

-

19

BUSY-S

E X.4

E X.5

28

37 EGND

E X.6

E X.7

PLC digital input 24V DC

M

extern 0V

Assignment of signal is done in menu "Setup" / "In- and Outputs". Use of signals is done in menu "Setup" / "Test Assembly" according to description. The 8 signals Data-In-7..0 and Data-Out-7..0 enable switching between max. 255 part types. The limitation to 3 data lines in the example results in a switching possibility between max. 7 part types - not wired signals Data-In-7..0 have status "0". Signal Strobe-Type triggers switching to part type set on Data-In-0..7. At Data-In7..0 = 0 a request of the set part type appears. Signal Out-Type is the handshake signal to Strobe-Type. The signals Data-Out-7..0 mirror Data-In-7..0 resp. give the set part type. After successful switching the signals Out-Type and Data-Out-7..0 merge to status "0". Part type switching is done for all stations at the same time.

6-10



6.5. Coil connection VCONS (structure test) coil 1

coil 2 A

Tx+ B

Tx-

K

C

Rx+

L D

Rx-

J

Tx+ H

M E

TxG

Rx+

F

Rx-

GND, shield

GND, shield button

Amphenol ECTA 1332E, 12pole jack

T+ T-

Figure: coil connection plug on VCONS-board, structure test The boards VCONS-02, -04, -06 and -08 have 1, 2, 3, resp. 4 coil connection plugs for each two coils. The figure shows the 12-pole jack of the VCONS-board and a wiring proposal to sender coils Tx, the receiver coils Rx and to the optional test key T. coil plug to Y-adapter Tx+ Tx-

A

E

Rx+

F B

D C

Amphenol ECTA 1332E (6pole jack)

RxGND, shield

Figure: coil connection plug to Y-adapter, structure test Y-adapters are available to split the 12pole coil connection to the single test coils. They have a 12pole connection directly to VCONS-boards and several 6pole jacks to connect single coils.


6-11


7. Part type switching via PLC (structure test) ®

The eddyvisor is prepared via the opto-interface for testing the current part type. Switching is effected for all stations at the same time. Part type switching via PLC and request of current part type are described.

7.1. Part type switching controlled by PLC Time diagram of part type switching is as follows: STROBE-TYPE DATA-IN-7~0 OUT-TYPE DATA-OUT-7~0 1

2

3

4

5

6

1) PLC: Set of Data-In-7..0 according to requested part type. Remark: At Data-In-7..0 = 0 a request of current part type occurs, refer to next point. 2) PLC: After 1 ms (in next PLC cycle) set of Strobe-Type. ®

3) Reaction of eddyvisor : The signals Data-Out reflect the conditions of the signals Data-In and Out-Type becomes „1“. If the signals Data-Out do not correspond to the signals Data-In, it is probably break of cable. Remark: Change of conditions of Data-In are forwarded now to Data-Out. 4) PLC: Reset of signal Strobe-Type - the signal Data-In remains active. The  eddyvisor switches the part type, if needed. Remark: With falling edge of Strobe-Type the eddyvisor saves the condition of Data-In-7..0 and starts part type switching. If Data-In-7..0 = „0“ at that moment, there is no part type switching. 5) Reaction of eddyvisor: After part type switching the signals Data-Out and then Out-Type are set to „0“. If the requested part type has already been set, switching time is minimised. In case of unsuccessful part type switching only Out-Type is reset - the signals DataOut remains active. Unsuccessful part type switching is possible when the requested part type is not available or switching of the mode of a station would be required.


7-1


6) PLC: Reset Reset of signals signals Data-In-7..0. Data-In-7..0.

7.2. Part type request controlled by PLC Time diagram of part type request is as follows: STROBE-TYPE DATA-IN-7~0 OUT-TYPE DATA-OUT-7~0 1

2

3

4

1) PLC: Set Set of Strobe-Type Strobe-Type at at Data-In-7..0 Data-In-7..0 = 0. 0. 2) Reac Reactio tion n of eddyvisor : Output of current part type with Data-Out-7..0 and set of Out-Type. Is the part type not identically at all station, the signals Data-Out-7..0 are set to „0“. 3) PLC: Reset Reset of signal signal Strobe-Type Strobe-Type.. 4) Reactio Reaction n of eddyvisor eddyvisor : Reset of Data-Out-7..0 and Out-Type to „0“. Request of part type may be used in order to reset the signals Data-Out-7..0.

7- 2


¡Error! Utilice Utilice la ficha Inicio para aplicar Überschrift Überschrift 1 al al texto que desea que aparezca aquí.

Manual eddyvisor SC

ibg Doc: 0713431e 0713431e,, 29 May 2008 2008

8. Technical data ®

Dimensions eddyvisor S

W 410 mm x H 308 mm x D 271 mm

eddyvisor ® HMI

W 41 410 mm x H 308 mm x D 96 mm

eddyvisor ® MS

W 410 410 mm x H 308 308 mm x D 175 175 mm ®

13 kg (6 kg of that is eddyvisor HMI)

W eight

Electrical data: Supply voltage

90 - 260 V / 47 - 63 Hz

Internal fuse

T 2.0 A

Recom commen mended con connectio tion

4.0 A

Power consumption

120 VA

Operating temperature range: Desktop version:

0°C to 40°C

Switch panel version:

0°C to 45°C

Sto Storage rage temp temper erat atu ure ran range: ge:

-20 -20°C to 60°C 0°C

Internal power supply: for optional supply of all VCONI-boards voltage

24 Vdc

max. current

2.5 A

with electronic overload fuse


8-1

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC

ibg Doc: 0713431e, 29 May 2008

9. Glossary eddyvisor ®

Registered trade mark of ibg Prüfcomputer GmbH

eddyvisor ® C

Instrument for crack detection, „Crack Test“

eddyvisor ® S

Instrument for structure test, „Structure Test“

eddyvisor ® SC

Instrument for structure test and crack detection

eddyvisor DS

D means Desktop version All combinations are available as desktop version, they can anytime be divided to switch panel versions.

eddyvisor DC eddyvisor DSC

eddyvisor ® HMI

Part of instrument operating unit (PC), „Human-MachineInterface“

eddyvisor ® MS

Part of instrument measuring unit, structure test, „Module Structure Test“

eddyvisor ® MC

Part of instrument measuring unit, crack detection, „Module Crack Test“

eddyvisor ® MSC

Part of instrument measuring unit, structure and crack test

OK-parts

Test parts which are sorted as OK

NG- / NOK-parts

Test parts which are sorted as bad / NG / NOK

PMFT

Preventive Multi-Frequency Test (structure test) Preventive Multi-Filter Test (crack detection)

VCONI

eddyVisor CONnector I /O, I/O-board 32 in- and 32 outputs 24 Vdc (PLC), for use in measuring unit either slot 3 or in slot 6 - 7

VCONC2 VCONC4 VCONCH2 VCONCH4

eddyVisor CONnector Crack Test, crack detection probe connection board for 2 or 4 probes VCONCH have only one big probe connector for rotating heads, for use in measuring unit in slot 1 - 4

VCONS2 VCONS4 VCONS6 VCONS8

eddyVisor CONnector Structure Test, coil connection board for 2 / 4 / 6 / 8 coils, for use in measuring unit in slots 1 - 4


9-1


ibg Doc: 0713431e, 29 May 2008

10. Appendix


10-1

¡Error! Utilice la ficha Inicio para aplicar Überschrift 1 al texto que desea que aparezca aquí. Manual eddyvisor SC 29 May 2008, ibg Doc: 0713431e

10-2



ibg Doc: 0713431e, 29 May 2008


10-3

EddyvisorSC v01 En

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