eddyliner px user manual

8/11/2019 Eddyliner Px User Manual

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Manual eddyliner

P2eddyliner

P3

and eddylinerP4

April 16 2004 (v 30e)

ibg Doc: 0108131e

eddyliner P

F2

START

F1

F3

F4 ESC

QUIT

F?

?

RESET

PRINT

EXTERN

SETUP


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Software and Manual

Copyright 1994-2004 by ibg Prfcomputer GmbH,Pretzfelder Strae 27, D-91320 Ebermannstadt

The copyright claimed covers all forms and types of materials and information falling

under the copyright, which at the present time are legally admitted or granted in the

following, including material generated without restriction from the software

programme appearing on the screen, such as symbols, screen displays, etc.

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 incorporates the latest state of the art. The manufacturer declines

any legal responsibility and liability for inspections carried out with the apparatus

and for resulting consequences. Successful implementation of an inspection

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 to avoid faulty operation and other errors, training in the manufacturers factory

or by an independent training organisation is recommended.

eddylineris a registered trademark of ibg Prfcomputer GmbH.

EPSON is a registered trademark of Seiko Epson Corporation.

HP and LaserJet are registered trademarks of Hewlett-Packard Corporation.

NEC is a registered trademark of Nippon Electric Corporation.

Trademarks are used without warranting free usability.


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ibg Headquarter:

ibg Prfcomputer GmbH

Pretzfelder Strae 27D-91320 EbermannstadtTel: +49-9194-7384-0Fax: +49-9194-7384-10E-mail: [email protected]

ibg International:

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

ibg SWISS AGGalgenried 6CH-6370 Stans

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

ibg UK Ltd.33 Park View RoadSutton ColdfieldGB-West Midlands B74 4PRTel/Fax: +44-121-352 1188E-mail: [email protected]


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Manual eddylinerPx Content

ibg Doc: 0108131e, Apr 16, 2004

Pretzfelder Strae 27

D-91320 Ebermannstadt Germany 0-3

Content

Exclusion of responsibility 1-0

1. Introduct ion .................................................................................................... 1-1

1.1. The principle of eddy current testing....................................................................1-1

1.2. Possibilities of eddy current inspection................................................................1-3

2. General hints .................................................................................................. 2-1

2.1. Selection of the test coils.....................................................................................2-1

2.2. Creation of optimum test conditions ....................................................................2-3

2.3. Wiring...................................................................................................................2-52.4. Elements of the front panel..................................................................................2-6

2.4.1. Soft keys ....................................................................................................2-9

2.4.2. Information window..................................................................................2-10

2.4.3. Help function............................................................................................2-10

2.5. Test sequence ...................................................................................................2-11

3. Short operating instructions ......................................................................... 3-1

4. Operating modes and funct ions ................................................................... 4-1

4.1. MAIN MENU ........................................................................................................4-14.2. SETUP.................................................................................................................4-2

4.2.1. COMMUNICATION SETUP.......................................................................4-5

4.2.1.1. Self-start ........................................................................................4-8

4.2.1.2. Volume ..........................................................................................4-8

4.2.1.3. V24-interface.................................................................................4-9

4.2.1.4. The printer .....................................................................................4-9

4.2.1.5. Warning .......................................................................................4-10

4.2.1.6. Sorting data recording .................................................................4-10

4.2.1.7. The sort impulse..........................................................................4-11

4.2.1.8. PIP-function (Start of test) ...........................................................4-114.2.1.9. Allocation of coils.........................................................................4-13

4.2.1.10. END-impulse .............................................................................4-13

4.2.1.11. Generation of the sum sort outputs OKS/NGS..........................4-14

4.2.1.12. Coil monitoring...........................................................................4-15

4.2.2. TEST-SETUP ..........................................................................................4-16

4.2.2.1. Number of setup..........................................................................4-21

4.2.2.2. Number of channel ......................................................................4-22

4.2.2.3. Set name .....................................................................................4-22

4.2.2.4. Test frequency.............................................................................4-23

4.2.2.5. Frequency set proposal...............................................................4-24

4.2.2.6. Size of the tolerance zone...........................................................4-24


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Content Manual eddylinerPx

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0-4 D-91320 Ebermannstadt Germany

4.2.2.7. Settling delay .............................................................................. 4-25

4.2.2.8. Test time and total test time........................................................ 4-26

4.2.2.9. Interference suppression ............................................................ 4-27

4.2.2.10. AUTOPIP-Frequency................................................................ 4-27

4.2.2.11. AUTOPIP threshold value......................................................... 4-28

4.2.3. Working with the External Setup Module (ESM)..................................... 4-29

4.2.3.1. Storage of the External Setup Module (ESM)............................. 4-30

4.2.3.2. Loading from the External Setup Module (ESM) ........................ 4-30

4.3. MODULE TEST AND OPERATION STATISTICS............................................ 4-31

4.3.1. MODULE TEST 1.................................................................................... 4-31

4.3.2. MODULE TEST 2.................................................................................... 4-33

4.3.3. MODULE TEST 3.................................................................................... 4-34

4.3.4. OPERATION STATISTICS ..................................................................... 4-35

4.4. MATERIAL DATA.............................................................................................. 4-354.4.1. RECORDING O.K. PARTS..................................................................... 4-37

4.4.2. TOLERANCE ZONE ............................................................................... 4-40

4.4.3. TOLERANCE ZONE CORRECTION ...................................................... 4-42

4.4.4. DYNAMIC CONTROL............................................................................. 4-44

4.5. SORTING.......................................................................................................... 4-47

4.5.1. Bargraph Display..................................................................................... 4-47

4.5.2. Display of ellipse ..................................................................................... 4-53

4.5.3. Display of sorting data ............................................................................ 4-54

4.6. Printing.............................................................................................................. 4-544.6.1. Screen printout........................................................................................ 4-55

4.6.2. Printout of all tolerance zones................................................................. 4-55

4.6.3. Protocol printout...................................................................................... 4-55

5. Data transfer via V24 interface ....................................................................5-56

5.1. Interconnection with external computer ............................................................ 5-56

5.2. Format of transferable data and commands..................................................... 5-56

5.3. Test data set ..................................................................................................... 5-56

5.4. Interruption data set .......................................................................................... 5-56

5.5. Commands possible with data transfer running................................................ 5-56

5.5.1. Request parts counter set ('z')................................................................ 5-56

5.5.2. Reset of parts counter ('r') ..................................................................... 5-56

5.5.3. Interruption of data transfer ('x' or 'y') .................................................... 5-56

5.5.4. Admitting transfer of test data ('v' or 'w')................................................. 5-56

5.6. Commands only possible when data transfer is interrupted ............................. 5-56

5.6.1. Common features of multi-byte commands ............................................ 5-56

5.6.2. Sending of material data of O.K. parts ('tm') .......................................... 5-56

5.6.3. Loading of material data of O.K. parts ('lm') .......................................... 5-56


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5.6.4. Sending of instrument setting incl. tolzones ('te')...................................5-56

5.6.5. Loading of instrument setting incl. tolzones ('le')...................................5-56

5.6.6. Configuration of data sets ('lv')..............................................................5-56

5.6.7. Remote control by simulation of keyboard input......................................5-565.7. BASIC - program example.................................................................................5-56

6. Connection w ith automatic sor t systems................................................... 6-56

6.1. Temporary course of measurement...................................................................6-56

6.1.1. Start of measurement (PIP) .....................................................................6-56

6.1.1.1. Triggering by external PIPx-signal...............................................6-56

6.1.1.2. Continuous measurement (KONTI-PIP) ......................................6-56

6.1.1.3. Subsequent testing (AFTER-PIP)................................................6-56

6.1.1.4. Automatic Triggering (AUTOM-PIP) ............................................6-56

6.1.1.5. Possible errors working with AUTOPIP.......................................6-566.1.2. Settling delay ...........................................................................................6-56

6.1.3. Total test time and MPRG .......................................................................6-56

6.1.4. Sort decision............................................................................................6-56

6.2. Optointerface (POPX)........................................................................................6-56

6.2.1. Protective wiring of inputs and outputs....................................................6-56

6.2.2. Signal levels of inputs and outputs ..........................................................6-56

6.2.3. Inputs "PIPx" (Piece in Probe) .................................................................6-56

6.2.4. Input "DPIP" (disable PIP) .......................................................................6-56

6.2.5. Output "MPRG" (Measuring in Progress) ................................................6-566.2.6. Sort outputs "OKx", "OKS" and "NGS" ....................................................6-56

6.2.6.1. Sort impulse length in "milliseconds"...........................................6-56

6.2.6.2. Sort impulse length "synchronous"..............................................6-56

6.2.7. Outputs "ENDx" and "END" (End of Measurement) ................................6-56

6.2.8. Output "SFTY" (SAFETY, watch dog)......................................................6-56

6.2.9. Output "ALRM" (ALARM).........................................................................6-56

6.2.10. Input "ALRS" (ALARM-RESET).............................................................6-56

6.2.11. Input "DABGL" (disable self-calibration) ................................................6-56

6.3. Connection Distributor (PEXT) ..........................................................................6-56

6.4. Integrated voltage supply 24 Vdc, max 1.6 A ....................................................6-56

6.5. Special functions................................................................................................6-56

6.5.1. Module test ..............................................................................................6-56

6.5.2. Self-start ..................................................................................................6-56

6.5.3. Alarm after xxx rejected parts in series....................................................6-56

6.5.4. Automatic Self-Calibration .......................................................................6-56

7. Remote Control with SET-CONTROL plug ................................................. 7-56

7.1. Signals...............................................................................................................7-56

7.2. Timing of switching ............................................................................................7-56


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7.2.1. Setup switching (SETUP)........................................................................ 7-56

7.2.2. Menu switching (MENU) ......................................................................... 7-56

7.2.3. Keyboard lock (KEY)............................................................................... 7-56

7.3. SET-CONTROL plug......................................................................................... 7-567.4. Special functions............................................................................................... 7-56

7.4.1. Module test ............................................................................................. 7-56

10. Appendix ...................................................................................................10-56

10.1. Automatic testing, course of Programme...................................................... 10-56

10.2. Time diagram................................................................................................ 10-56

10.3. Electronic diagram of Interfaces ................................................................... 10-56

10.4. Pin Configuration of POPX and PEXT .......................................................... 10-56

10.5. Pin Configuration SET-CONTROL plug........................................................ 10-56

10.6. Wiring examples optointerface...................................................................... 10-56

10.6.1. Interface proximity switch and internal power supply.......................... 10-56

10.6.2. Interface to universal sorting device ................................................... 10-56

10.6.3. PLC-controlled testing using one coil at four test positions ................ 10-56

10.6.4. PLC-controlled testing with recognition of direction ............................ 10-56

10.7. Wiring examples SET-CONTROL plug......................................................... 10-56

10.7.1. Setup-Switching of 15 Setups using a PLC ........................................ 10-56

10.8. V24-Wiring .................................................................................................... 10-56

10.9. Example of test protocol ............................................................................... 10-5610.10. Electrical rated values................................................................................. 10-56


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Manual eddylinerPx Introduction

ibg Doc: 0108131e, Apr 16, 2004



1. Introduction

Congratulation on the decision to use the eddyliner

Px in your factory. You haveacquired the most advanced eddy current testing device working according to the

PREVENTIVE MULTI-FREQUENCY method. 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 operator 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.

The chapter "3. Short operating instructions" as from page 3-1 is mainly intended to

save the users who are not constantly working with the eddylinerPx the

troublesome study of a detailed user manual.

As a new user of the eddylinerPxyou 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 quickly you will learn to handle the eddylinerPx.

Please read these operating instructions carefully in order to avoid operating errors.

We have tried to keep the instructions as short as possible in an effort not to burden

you with unnecessary information.

1.1. The principle of eddy current testing

When alternating current is sent through a transmitter coil, a magnetic field builds up

at the coil. If a conductive test part approaches the current-carrying coil, an eddycurrent is induced in the test part. This phenomenon is schematically illustrated in

Fig. 1.1.


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Introduction Manual eddylinerPx

The principle of eddy current testing Apr 16, 2004, ibg Doc: 0108131e



u m u s

si

u

u

2

1

wi

Fig. 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 eddylinerPx testing device recognizes such changes and

indicates deviations. In an analysis, the differences of the transmitter are comparedwith those of the receiver, evaluated and the result is classified.

The eddylinerPx operates according to the method of PREVENTIVE MULTI-

FREQUENCY TESTING (PMFT) developed by ibg. The merit of PREVENTIVE

MULTI-FREQUENCY TESTING is seen in the high probability of detecting even

unknown errors due to the wide frequency band.

In contrast to other procedures, ibg uses low field strength values. This means that

only low currents flow through the coils and that an insignificant permeability

develops in ferromagnetic materials.

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 test part.

Improved testing stability because no heat builds up in the test part, the

instrument and in the coil.


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Manual eddylinerPx Introduction

ibg Doc: 0108131e, Apr 16, 2004 Possibilities of eddy current inspection



The outstanding properties of PREVENTIVE MULTI-FREQUENCY TESTING

(PMFT) are the following:

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

Only good parts must be presented to the instrument.

RECORDING O.K. PARTS is extremely simple and effected in a very short time.

1.2. Possibilities of eddy current inspection

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 eddyliner

Pxtakes care of all the fields of application summarily mentioned inTable 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

Steel 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 method. The hardness of parts can be measured

with the eddylinerPx inspection device to within 2 - 3 HRC without any problem.

However, as it is the case with all eddy current tests, the inspection is based on

YES/NO answers. The eddy current testing instrument does recognize deviationsfrom existing tolerance zones, but cannot reveal the causes responsible for them. In

order to obtain precise information on why the test part was classified as NotGood,

yet other testing procedures such as hardness test and metallurgraphic studies must

be employed to confirm the findings of the eddy current device.


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Manual eddylinerPx General hints

ibg Doc: 0108131e, Apr 16, 2004



2. General hints

The eddyliner

Pxeddy current inspection device is microprocessor-controlled. Theentire control software is configured hierarchically, so the submenus selectable

result automatically from each main menu. The eddylinerPxis operated via a so-

called 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.

Note

The [? ]-is auxiliaryand 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 Prfcomputer GmbH, Tel. +49-91 94-73 84-0

2.1. Selection of the 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 type of job and the shape of the test part determine the type

of coils. 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.


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General hints Manual eddylinerPx

Selection of the test coils Apr 16, 2004, ibg Doc: 0108131e



Field of application Frequency range

P

robe

Encir

clingcoil

Encir

clingcoil

sh

ielded

Rectangularcoil

Flatcoil

Material mix:

ferritic material

austenitic material

non-ferrous metals

hard metals

25 Hz - 100 kHz

100 Hz - 100 kHz

100 Hz - 100 kHz

50 Hz - 100 kHz

+++++++

++++

++

+

+

++++

++

+++++++

Heat treatment:

tempering

surface hardness

case depth of shafts

case depth (carburized)

carburization

decarburization

25 Hz - 25 kHz

100 Hz - 25 kHz

5 Hz - 400 Hz

5 Hz - 4 kHz

5 Hz - 25 kHz

10 kHz - 100 kHz

+++

+++

++++++

+++

++++

+++

++++++

+++

+++

+++

Cast iron:

nodular cast iron

ledeburite (spherocast)

5 Hz - 5 kHz

25 Hz - 25 kHz

+

++

++

+

+

+

++

+

+

++

Surface:

grinding abuse 5 kHz - 100 kHz ++ ++

++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 25 Hz to 10 kHz

2 rings 250 Hz to 50 kHz

3 rings 5 kHz to 250 kHz

As far as encircling coils are concerned, a filling degree of 60 per cent should not be

fallen below as otherwise the measuring signals become too small and the

differences, e.g. 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

firmly mounted compensation part. Removing or shifting the compensation part


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ibg Doc: 0108131e, Apr 16, 2004 Creation of optimum test conditions



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 a receiver winding. The receiver winding should alwaysbe 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 side, the receiver winding is below and the transmitter winding is

above in the coil.

Section A-A

Coil plug

Transmitter winding

Receiver winding

AA

ibgP/NS/NDAT

25Hz-25kHz

Frequency range

Fig. 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

Please pay attention to the following points when carrying out a test. 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:

Non-homogeneities in material

Dimensional tolerances in the test part

Dimensional tolerances in coil positioning

Variations in temperature.

For optimum results please pay attention to the following points:


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Creation of optimum test conditions Apr 16, 2004, ibg Doc: 0108131e



Make sure that the parts for material data recording comply with the desired

specifications.

Feed the batches of material separately into the testing device.

Make sure that the test parts have a constant test temperature.

For RECORDING O.K. PARTS feed at least 7 to 10 OK-parts per material group

into the device.

Select reasonable tolerances to avoid the risk of obtaining undesirable pseudo

rejects.

Pick random samples from the reference parts during the test.

To protect the device against undesirable interventions, lock it via the key switch.

Read the operating instructions before putting the device into operation.

Make sure that constant and reproducible test conditions are maintained.

See to it that no metallic parts, which are not selected 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.

Keep interferences as current impulses, flux machines active during themeasurement, electric welding and other magnetic or electric interference fields

away from the coil.

The following factors may adversely affect the measurement directly:

Positioning of the test part in the coil

Dimensional tolerances of the test parts

Variation in the batches

Differences in temperature between reference part and test part

Use of coils with a wrong frequency range

Lift-off effect due to dust and dirt

Edge effect caused by changing measuring positions with probe.


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ibg Doc: 0108131e, Apr 16, 2004 Wiring



2.3. Wiring

Prior to putting the eddylinerPxinto operation, all cables must be connected.

WARNING

Please take care that all cables are plugged and screwed tight

beforethe power switch is turned on.

Also ensure that all plugs are firmly connected and screwed tight.

If plugs are inserted after connection of the eddylinerPxthe

various components are likely to be damaged !

Fig. 2.2 shows the rear side of the eddylinerPx. Put the various cable plugs into

the respective sockets. Mistaken plugging is not possible because each plug fitsonly into the specifically matched socket. The operating system plug has been firmly

mounted in the factory and needs replacing only when required, e.g. for the update

of the operating system. The SET-CONTROL-PLUG requires software version

Px300 or later.

Coil connectionPower plug External printer

Operating systemplug

Optointerface

(PLC activation,

sorting switch etc.)

Name plate Serial interface

Fine-wire fuse

T 2.0A

90-260V

47-440Hz

ibgPrfcomputer GmbHP/NS/NDAT

Relay activation

T 2.0A

Set Control

plug

Fig. 2.2

If coil heads, several pairs of coils or several probes are to be used, a coil switch

must be connected. For this purpose, the coil connection and the control outlet of

the relay on the backside of the eddylinerPxare connected to the coil switch. The

individual coil cables are then connected directly to the coil switch.


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Elements of the front panel Apr 16, 2004, ibg Doc: 0108131e



When encircling coils are used, it does not matter which of the two twin cable plugs

is connected to what coil.

Important Notice !The eddylinerPxmust 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.

2.4. Elements of the front panel

All control elements are arranged on the front panel of the eddylinerPx. They are

slightly depressed and a background-lit screen is arranged between the operator

keys. Fig. 2.3 shows the front side of the eddylinerPx. Screen and soft keys are

explained in the next chapter.

eddyliner P

F2

START

F1

F3

F4 ESC

QUIT

F?

?

RESET

PRINT

EXTER

SETU

Socket for

External Setup

Module (ESM)

Key switch

+/-

function lampSoft keys and function keys

Screen-brightness -contrast Screen with soft-key designations

Sort display

NG (Red) OK (Green)

top

left right

bottom

Cursor keys

Cursor

function lamp

(a)

(b)

(c)

Fig. 2.3

Softkey [F1]- [F4]The function soft keys will be dealt with in the next chapter.


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ibg Doc: 0108131e, Apr 16, 2004 Elements of the front panel



[?] keyWith the [?] key you can call up a context-related help at any point of the controlsoftware of the eddylinerPx. This means that you will receive help at any point

of the software. Make it a habit to actuate this [? ]key whenever a problem has tobe clarified. By depressing this [? ]key again, you leave the help window.

[F?]keyThis [F?]key refers to the soft keys [F1] - [F4]; by pressing the [F?]key youreceive a detailed explanation of the individual soft keys which can be selected in

both short form and long form. See the respective comments in the next chapter.

[QUIT]keyActuating the [QUIT]key in TEST-SETUP operating mode causes AUTOPIP tobe adjusted to the empty coil, whilst in SETUP EDITOR mode the letters for the

set denomination are selected.

[ESC] keyWhen [ESC] key is actuated, a step back is made in the hierarchy of thesoftware.

If settings were changed without storing, an interrogation is made for safety

reasons. In general, with [+]you confirm the changes made and in this manneryou make up for the omitted storage. Via [-]you reject the changes (the old dataare displayed again) and pressing the [ESC]key once more, you interrupt theoperation to have another look at the changes.

If for some reason you must delete all data from the eddylinerPxand reset it to

the starting position, you can keep the [ESC]key depressed during start-up ofeddylinerPx.Warning! This deletes definitely all settings, material data, tolerance zones and

sets !

[START] keyIndependent of the type of measurement triggering in the

COMMUNICATION-SETUP via the [START] key the measurement can betriggered manually at any time.

[+]and [-]key

The keys [+] and [-]can be used for the setting of parameters, selection fromlists and for answering interrogations. The [+]and [-]key is always active whenthe green function lamp between these two keys lights up.

Cursor keys, left-right-top-bottomThe cursor can be moved across the screen with these keys. This is required

whenever various choices are offered. The cursor keys are ready for operation

when the green function lamp between the cursor keys is alight.

Key switchThis switch has three positions and the key can be taken out at all three

positions.


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(a) The instrument is switched off (separated from the power line).

(b) The instrument is switched on. All functions are accessible.

(c) The instrument is switched on. No access to the functions.

During the test unauthorised intervention is not possible.

When turning the key switch to position (c), an interrogation window

appears. The range of access restrictions can be selected. If all keys are

inhibited, the softkeys will disappear from the display. Otherwise, all

softkeys remain visible although key switch is in position "blocked". This

way, reading in of different sets in mode SETUP is possible, but individual

values cannot be modified.

[Sun]keyThe [Sun]-key has no function. The brightness is always set to maximum.

[Moon]keyThis [Moon] key is used for setting the screen contrast. You are guidedautomatically by an adjustment menu on the screen.

[RESET]keyWith this [RESET]key you can reset the eddylinerPxto the MAIN MENU or tothe SORTING menu. The function of the [RESET]key corresponds to the so-called "warm start" in a standard computer. (When the eddylinerPxis switched

on, it also performs a warm start). For this, the [RESET] and [START] keymust be pressed simultaneously. In the key switch position (c), a reset is not

possible.If for some reason you have to delete all the data from the eddylinerPxand to

reset it to its starting position, you may keep the [ESC] key depressed whenswitching it on. Warning ! This erases all settings, material data, tolerance zones

and sets !

[PRINT]keyIf an optional laser printer, ink-jet printer or matrix printer is connected to the

eddylinerPxboth screen printouts (hard copy) and protocol printouts of sorting

performed may be made.

If an interrogation window, a help text or a detailed explanation of the softkeys is

displayed, a screen printout is done without inquiry after pushing the [PRINT]key. Otherwise, you can select either screen printout or protocol printout in a

special menu.

External Setup Module ESMA socket is arranged on the front panel for an external setup module. This is

necessary for the permanent storage of setting values and/or for the transmission

of such values to another eddylinerPx.


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ibg Doc: 0108131e, Apr 16, 2004 Elements of the front panel



2.4.1. Soft keys

The entire operation of the eddylinerPx is made via so-called soft keys. The

function of these keys is defined by the software or by the screen text. In Fig. 2.4 the

MAIN MENU and the adjacent soft keys [F1]- [F4]are shown. On the right side ofthe screen white letters in black fields can be seen. These four fields contain the

lettering of the adjacent soft keys [F1] - [F4] in abbreviated form (three capitalletters vertically arranged).

F2

START

F1

F3

F4 ESC

QUIT

F?

?

Operating mode bar

Information window

(identical in all menus)

Definition of soft keysF1-F4 in abbreviated form

Soft keysF1-F4

Fig. 2.4

With the [F?]key a detailed information on the soft keys can be called up. Pressingthe [F?]key replaces the soft key description in abbreviated form with plain text.The soft keys remain active also during the display of this detailed explanatory text.

On pressing the [F?] key again, the detailed comment disappears and the under-lying screen half becomes visible again.


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F2

START

F1

F3

F4 ESC

QUIT

F?

?

Unabbreviated definition ofsoft keys F1-F4

Soft keysF1-F4

Fig. 2.5

2.4.2. Information window

The information window is located on the screen left. It contains the software

version, you work with, in the left upper corner. Underneath the current date and

hour the serial number of the eddylinerPx is indicated. Moreover, the currently

loaded instrument setting (Set...) together with its denomination can be identified

and also when this setup was changed for the last time.

Underneath the information window the operating mode bar is arranged whichindicates in white lettering on black background the current active operating mode,

in this case the MAIN MENU. See also Fig. 2.4.

2.4.3. Help funct ion

The eddylinerPx offers a context-related help. This means that you are offered

actual assistance at any point of the software. The help function provides for every

operating mode, every warning or message additional information which is displayed

on the screen via [? ] key. Fig. 2.6 reproduces the help window from the MAIN

MENU. The help window is subdivided as follows: on top in the header bar thecurrent theme of the auxiliary function is indicated. On the right side of this header

bar you find information on the page number selected and the total number of pages

relating to this theme. Underneath there is the auxiliary text.


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ibg Doc: 0108131e, Apr 16, 2004 Test sequence



Current help theme Page No/ Number of pages

Help text

Fig. 2.6

With the cursor keys topand bottomyou can select the corresponding page of the

help function. By pressing again the [? ] key or the [ESC]key, you quit the helpfunction.

There is yet the [F?]key with a particular help function. By depressing this key, a

detailed comment on the soft keys can be called up; in this context, see also Fig. 2.5

on page 2-10. The soft keys remain active also during the display of the detailed

description.

2.5. Test sequence

The eddylinerPxoperates 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 test part 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, depending on the operating mode, the values stored

are either compared with the tolerance zones (sorting) or assigned to the reference

values (mode RECORDING O.K. PARTS).

PIP (piece in probe)

Settling delay

MPRG (measurementin progress)

OKx (sort impulse ok)

ENDx (end ofmeasurement)


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Test sequence Apr 16, 2004, ibg Doc: 0108131e



Start of measurement with "PIP-signal" (Piece In Probe) :

A measurement must be started (PIP-signal) and requires a certain period of time

(MPRG-signal). Triggering of measurement is only possible in modes RECORDING

O.K. PARTS or SORTING; in all other modes of the eddylinerPxa PIP-signal doesnot trigger measurement, an MPRG-signal does not appear.

Settling delay:

After triggering of a measurement, but before measurement itself starts, an

adjustable settling delay may be selected. This settling delay allows the test part to

physically settle inside the test coil and measurement will not start unless the test

part has reached its final position in the coil.

"MPRG-signal" (Measuring in Progress) :

Working in mode RECORDING O.K. PARTS or SORTING, the MPRG-signal

(Measuring in Progress) will appear immediately after the PIP-signal (Piece In

Probe). The settling delay follows, and after termination measuring itself will start at

the first frequency.

Sorting decision with "OKx-signal":

If testing is completed at all frequencies, the sort decision is made and applied to the

sort output (OKx). In the operating mode RECORDING O.K. PARTS, of course no

sort signal will be generated.

The ENDx-signal (end of testing by channel .x):

If all test frequencies for channel .x have completed testing (and possibly a sort

decision has been made), the ENDx-signal will be generated.

If the PIP of the following channel is set to AFTER, settling delay of this channel

starts immediately, the MPRG-signal remains active.

If it is the last channel within one block of testing, the MPRG-signal disappears.

Once the MPRG-signal has disappeared, the eddylinerPxis again ready for a new

measurement (see also chapter "10.2. Time diagram" on page 10-56).


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Short operating instructions Manual eddylinerPx

Apr 16, 2004, ibg Doc: 0108131e



eddyliner P

F2

START

F1

F3

F4 ESC

QUIT

F?

?

RESET

PRINT

EXTER

SETU

Socket for

External Setup

Module (ESM)

Key switch

+/-

function lampSoft keys and function keys

Screen-brightness -contrast Screen with soft-key designations

Sort display

NG (Red) OK (Green)

top

left right

bottom

Cursor keys

Cursor

function lamp

(a)

(b)

(c)

Fig. 3.1

(a) When encircling coils are used:

Place a part in the compensation coil(s).

(b) When using self-compensated coils or probes:

A compensation part is not required.

Press [F3], MAT (Material data)Thereupon the MATERIAL DATA mode appears. Here the OK-parts are input

and the tolerance zones are formed.

Press [F1], NEW (new recording of OK-parts ).Thereupon the RECORDING O.K. PARTS mode appears.

(a) "Simultaneous" testing at several positions using a coil head or several

pairs of coils:

Place the O.K.-parts (reference parts) one after the other into the coil.

Press the [START]-key on the eddylinerPx after every part. Now alocus curve covering the set frequencies is recorded by every channel for

every one of the at least 10 O.K.-parts.

(b) Subsequent testing at several positions using one pair of encircling coils

or a probe:

Move the cursor to the leftuntil channel .1 is displayed.

Move an O.K.-part (reference part) or the coil to test position 1 and press

the [START]-key on the eddylinerPx. Now, a locus curve covering theset frequencies is recorded by channel .1.

Move the cursor to the rightuntil channel .2 is displayed.


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Manual eddylinerPx Short operating instructions

ibg Doc: 0108131e, Apr 16, 2004



Move an O.K.-part (reference part) or the coil to test position 2 and press

the [START]-key on the eddylinerPx. Now, a locus curve covering theset frequencies is recorded by channel .2.

Proceed in the same manner until a locus curve covering the setfrequencies is recorded by every channel for every one of the at least 10

O.K.-parts.

Press [F4], END (end of recording OK-parts)Now the eddylinerPxautomatically forms tolerance zones for the parts entered.

These zones are used for comparison in the ensuing test.

Press [F4], OK (all tolerance zones are in order)Now the eddylinerPxautomatically jumps into the SORTING mode. This is the

moment to start the test proper of all parts.

SORTING

(a) "Simultaneous" testing at several test positions using a coil head or

several pairs of coils:

Place all parts to be tested one after the other into the coil and press the

[START]-key on the eddylinerPxfor every single part. When a part isOK on the indicated channel, the sort indicating lamp shows green. If a

part is NOT GOOD (NG), the sort indicating lamp shows red.

(b) Subsequent testing at several positions using one pair of encircling coils

or one probe:

Move the cursor to the leftuntil channel .1 is displayed.

Move the part to be tested or the coil to test position 1 and press the

[START]-key on the eddylinerPx. If the part is OK on channel .1, thesort indicating lamp shows green. If the part is NOT GOOD (NG), the sort

indicating lamp shows red.

Move the cursor to the rightuntil channel .2 is displayed.

Move the part to be tested or the coil to test position 2 and press the

[START]-key on the eddylinerPx. If the part is OK on channel .2, the

sort indicating lamp shows green. If the part is NOT GOOD (NG), the sortindicating lamp shows red.

The part to be tested will be tested in this manner at all test positions.

Press [PRINT]on the eddylinerPx,for printing out a test protocol on the connected printer. An interrogation window

appears. Now you can decide on printing out either the screen or a protocol.

Press [-]on the eddylinerPxNow the connected printer prints out a protocol.


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Short operating instructions Manual eddylinerPx

Apr 16, 2004, ibg Doc: 0108131e



By pressing the [+]key the screen display (hardcopy) can be printed out, if protocolis not wanted.

The current SORTING is not affected by the printout, only the screen display

remains "frozen" as long as the printout lasts.

In the SORTING menu the parts counters are arranged on top right (see Fig. 3.2). If

the parts counters are to be reset to zero, proceed as follows:

Press [F1], RES (reset parts counters)A safety interrogation appears. Pressing the [ESC]key returns to the display ofthe SORTING menu without causing a change in the parts counters.

Press [+]All parts counters are reset to 0 and the eddylinerPxautomatically goes back to

the display of the SORTING.

F2

START

F1

F3

F4 ESC

QUIT

F?

?

parts counter

Fig. 3.2


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Manual eddylinerPx Operating modes and functions

ibg Doc: 0108131e, Apr 16, 2004



4. Operating modes and functions

The operation of the eddyliner

Pxis facilitated by the hierarchical structure of themenus. In the following some basic information is given as a guide to the operator.

By pressing a soft key either a function can be selected directly or a new menu will

appear. With the appearance of a new menu, the soft keys specify further new

functions or operating modes. In this manner a hierarchical structure is set up in the

form of a decisional tree branching out from top to bottom. Only where the work is

considerably eased it is possible to jump from one tree configuration branch to the

other, say, from MATERIAL DATA to SORTING and back again. Fig. 4.1 shows the

software structure diagram. MODULE TEST 3 is first available with software version

Px300.

MODULE TEST 3

MAIN MENU

DYNAMICS CONTROL

CORRECT TOLZONE

SORTING INTERRUPT SORTING

SETUP

OPERATION STATISTICS

MATERIAL DATA

RECORDING O.K. PARTS

TOLERANCE ZONE

SETUP - EDITOR

MODULE TEST 2

TEST SETUP

COMMUNICATION SETUP

SORTING DATA

MODULE TEST 1

Fig. 4.1

4.1. MAIN MENU

The four menus SETUP, MODULTEST, MATERIAL DATA or SORTING are

selected from the MAIN MENU via soft keys. Fig. 4.2 shows the screen of the MAIN

MENU. You find the activable menus in a three-letter sign on the right side of the


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Operating modes and functions Manual eddylinerPx

Setup Apr 16, 2004, ibg Doc: 0108131e



screen, white on black ground. These menus are selected via the adjacent soft keys

[F1]- [F4].

F2

START

F1

F3

F4 ESC

QUIT

F?

?

Fig. 4.2

4.2. SETUP

All settings necessary for adapting the eddylinerPx to the specific test task are

carried out in the SETUP menu and the subordinate menus. The adjustable

parameters of the eddyliner

Pxare subdivided into two groups:

The test parameters

contain all settings depending directly on the parts to be tested. This includes

four representative OK-parts, not material data. In order to guarantee quick

change-over from one test part to another, 50 sets of test parameters can be

stored internally. They are available on pushing a button. Apart from the set

number (1.. 50), a setup name can be chosen by the user for identification of the

test parameters.

Before software version Px215 or CPU Mod F only 10 Setups are available.

The communication parameters contain all settings depending on the technical

environment of the eddylinerPx. They are stored internally only once, i.e. when

changing from one test part to another by choosing another setup number, these

parameters remain unchanged.

When the SETUP menu is called up, the significance of the soft keys changes. Fig.

4.3 gives the detailed definition of the soft keys in the SETUP menu.


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ibg Doc: 0108131e, Apr 16, 2004 Setup



SETUP

F

R

Q

Selection of Sets,

setting of FRQ,

PipFRQ, delay..

Set of Pip mode,

output signals,

printer, V24, Astart..

Read test and com-

munication parameters

from SETUP module

Store test and com-


on SETUP module

E

S

R

E

S

S

C

O

M

TEST SETUP

COMMUNICATION SETUP

Fig. 4.3

The soft key [F1]calls up the menu TEST-SETUP. In this menu, the individual testparameters can be checked and changed. The soft key [F4] invokes the menuCOMMUNICATION-SETUP. In this menu, the individual communication parameters

can be checked and changed.

In the SETUP menu itself the individual parameters cannot be changed. Stored

settings can be retrieved quickly. Fig. 4.4 shows the monitor of the SETUP menu.

F2

START

F1

F3

F4 ESC

QUIT

F?

?

setupInformation window

Name of the setup

Date of last change

Number of the

Fig. 4.4

The information window contains general information and indicates the active setup

presently selected. The various entries are explained in chapter "2.4.2. Information

window" on page 2-10.


32/146





Once the setting of the test parameters for every type of part to be tested is stored,

changing over from one type to another is very simple. Setting of the system to a

different type of part is done in the MAIN MENU as follows:

Press [F1], SET,and the SETUP menu is activated.

Press [+]or [-],to select the relevant number of setup from the total of 50 internally stored setups

of test parameters. Apart from the number of the selected setup, the date of last

change is displayed. The name of the setup in the display is intended to facilitate

the identification of the test task.

Press [ESC],and an interrogation window will appear.

Press [+]The setting selected is now active.

If the 50 internal settings available in the eddylinerPxare not sufficient or if various

communication parameters are to be used, an External Setup Module offers further

storage capacity.

Press soft key [F3], SES, to store the displayed instrument setting in the ExternalSetup Module (ESM). In the ESM, the data stored always comprise test parameters

and communication parameters. This allows to store the complete setting of the

eddyliner

Pxseparately from the test instrument for safety reasons.

Loading the complete setting from the External Setup Module (ESM) in the MAIN

MENU is very simple.

Press [F1], SET,to activate the SETUP menu.

Press [+]or [-],to select a setup of which the internally stored data can be overwritten.

Press [F2], ESL,and date and name of the setup stored on the ESM are indicated. The previouslyselected number of setup is not changed.

Press [ESC],and an interrogation window will appear.

Press [+],and the test parameters and the communication parameters retrieved from the

ESM are taken over and activated.


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As a result of the take-over from the ESM, all test and communication parameters

which were previously available under the selected setup in the eddylinerPx are

overwritten.

Please see chapter "4.2.3. Working with the External Setup Module (ESM)" on page4-29 for further information on the ESM.

4.2.1. COMMUNICATION SETUP

All settings depending on the technical environment of the eddylinerPxare done in

the COMMUNICATION-SETUP menu. These communication parameters are

internally available only once, i.e. they remain unchanged when selecting a different

setup for changing over from one type of part to another. Fig. 4.5 shows the

COMMUNICATION-SETUP menu.

F2

START

F1

F3

F4 ESC

QUIT

F?

?

Information window

Fig. 4.5

To the right of the information window, general communication parameters are

displayed. At the bottom of the display, one line is reserved for every existing

channel. Here, the specific communication parameters for every individual channel

are shown. Usage of the sum outputs OKS/NGS and END is shown in an extra line.

When the COMMUNICATION menu is called up, the significance of the soft keys

changes. Fig. 4.6 gives the detailed definition of the soft keys in the

COMMUNICATION menu.


34/146





COMMUNICATION SETUP

D

E

F

Display of

BASIC SETUP

on the screen

Store displayed

parameters as active

setting

Read and display com-


from SETUP module

Store test and com-


on SETUP module

E

S

R

E

S

S

S

A

V

Fig. 4.6

After calling up the menu COMMUNICATION-SETUP, the active instrument setting

is displayed, i.e. the displayed setting is activated. All changes are done at first on

the monitor only and may be cancelled at any time by pressing the softkey [F4],SAV, and pressing [-] on inquiry. Only when the displayed setting is stored bypressing [F4], SAV, and pressing [+]on inquiry, the setting is activated.

Press [ESC]to quit the menu COMMUNICATION-SETUP. If you have modified theset parameters without saving the changes, an inquiry will appear. Press [+] to storethe changes, [-]to cancel the changes or [ESC]to review the changes.

Press soft key [F3], SES, to store the displayed communication parameters in theExternal Setup Module (ESM). In the ESM, the data stored always comprise the

active test- and the displayed communication parameters. This allows to store the

complete setting of the eddylinerPxseparately from the test instrument for safety

reasons.

Proceed in the following manner to read the communication parameters (without test

parameters) in the COMMUNICATION-SETUP from the External Setup Module

(ESM):

Press [F2], ESLThe communication parameters stored on the ESM are read and displayed.

Press [F4], SAVAn interrogation window appears.

Press [+]to take over the communication parameters read in from the ESM as active

instrument setting.


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36/146





The following chapters contain detailed explanations concerning the function and

setting of the individual test parameters.

4.2.1.1. Self-start

The eddylinerPx features a self-start function following power failure or

disconnection. With this function in ON position, the eddylinerPxstarts again and

again with the SORTING, provided that this operating mode had been selected prior

to power failure or disconnection. If the self-start is in OFF position, the

eddylinerPxstarts with a warning and activates the ALARM output, whenever the

SORTING has been active before power failure and disconnection. In all other

cases the eddylinerPxwill start with the MAIN MENU.

Move the cursor to "self-start" using the cursor keys. The word is now shown

inverted.

Press [+]to switch the self-start from OFF to ON or vice versa.

Press [F4], SAV,and an interrogation window will appear.

Press [+]

The setting selected is now active.

4.2.1.2. Volume

The eddylinerPxhas a built-in signal generator. The volume of the internal signal

generator may be varied between 0 and 100 %. Whenever a key on the

eddylinerPxis pressed, the built-in signal generator emits a signal.

Move the cursor to "LOUD" using the cursor keys. The word is now shown

inverted.

Press [+]or [-],to select the desired volume. The volume setting can be checked by pressing,

e.g. the [QUIT] key.

Press [F4], SAVand an interrogation window will appear.

Press [+]to store the volume set.


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4.2.1.3. V24-interface

Setting of parameters is only necessary if the eddylinerPx is connected to an

external computer via serial interface (V24 or RS232).

In this case, all parameters indicated following to "V24 :" (baud rate, parity, number

of data bits, number of stop bits) have to meet exactly the parameters of the

computer connected to the interface. Baud rates higher than 9600 Baud are

available with software version Px300 and PCPR11 or later. See also chapter

"5.1. Interconnection with external computer" on page 5-56.

Move cursor to the relevant parameter indicated after "V24 :". The selected

parameter is now shown inverted.

Press key [+]or [-] ,

to set parameter to the requested value.

Press key [F4], SAVAn interrogation window appears.

Press [+],to activate modified V24 parameters.

For more details on data transfer or control of eddylinerPxvia serial interface see

chapter "5. Data transfer via V24 interface" as from page 5-56.

4.2.1.4. The printer

Commercially available laser printers, ink-jet or matrix printers can be connected to

the eddylinerPxvia the parallel interface. Adapters are available for various printer

types. With the eddylinerPx you may print a protocol or the screen display

(hardcopy). Further information is provided by the help windows.

Position cursor on the denomination "printer" using the cursor keys. The word is

now shown inverted.

Keep [+] or [-]depresseduntil the desired printer driver is displayed on the screen.


Press [+]The changed printer driver is active now.


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4.2.1.5. Warning

This function switches the alarm output on, in case an adjustable number of

NotGood-parts (NG) is recognized in succession by the eddylinerPx. The test in

progress is not interrupted. A single OK-part resets the NotGood alarm counter, ifthe threshold has not yet been reached, and counting restarts with the next NG-part

being counted again as number one. The threshold of the NG alarm counter may be

set in the range from 1 to 999. The zero value switches off this function.

Position the cursor on the name "Warn:" using the cursor keys. The word is

shown inverted now.

Press [+]or [-],to enter the desired alarm threshold.


Press [+]The setting selected is active now.

4.2.1.6. Sort ing data recording

In SORTING mode, a certain number of measured data is stored. It may be selected

whether all data or only NG parts are to be stored.

Depending on the instrument equipment, a maximum number of 10 parts(eddylinerP with PCPU up to MOD E and without PRAM) or 200 parts

(eddylinerPwith PRAM or PCPU as of MOD F) may be stored. If this maximum is

reached the data of the oldest part are overwritten when a new part is stored.

This function is first available with software version 2.14

Position the cursor on the name "SDat:" using the cursor keys. The word is

shown inverted now.

Press [+]or [-],to enter the desired material data.




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4.2.1.7. The sort impulse

Every channel generates a separate OKx-signal (sort output OK of channel .x) (OK1

to OK4 for eddylinerP4). In the SORTING mode after termination of every test with

channel .x an OKx-signal may be generated.

When using sum signals (see chapter "4.2.1.11. Generation of the sum sort outputs

OKS/NGS" on page 4-14), after termination of the last logically linked test,

additionally an OKS or NGS-signal (sum sort output OK or NOT GOOD) will be

generated.

The length of these signals has to be set in the range from 50 ms to 5,000 ms or to

one of the SYNC operating modes to be selected via [+]and [-]. With the SYNC 1setting, the sort signal is kept alive until the next PIP-signal is emitted. With the

SYNC 2 setting, the sort signal remains in force until the next sort decision is made.

If the SORTING operating mode is quit, the sort signals also disappear.

Position the cursor on the denomination "sortimplength" using the cursor keys.

The word is shown inverted now.

Press [+]or [-]You may choose between the synchronous operating modes SYNC 1 and

SYNC 2 or a fixed time in milliseconds.



4.2.1.8. PIP-function (Start of test)

Testing (RECORDING O.K. PARTS or SORTING) is initiated with the PIP signal.

PIP is the abbreviation for Piece In Probe. For every channel .x there is a separate

optically isolated input PIPx available for external test initiation (PIP1 to PIP4 for

eddylinerP4).

The PIP signal of test position .1 has four different modes of operation :

(a) AUTOMatic operation by AUTOPIP when a test part is approaching the

test coil and when a certain threshold value is reached

(For this operating mode, the frequency and the threshold value for

AUTOPIP must be set !)

(b) MANUAl operation by pushing the [START] key or, if a probe cable withtest initiation button is connected, by this test initiation button.

(c) PIP1 via external optically isolated PIP1 input.

(d) KONTInuous operation - measurement after measurement


40/146





The PIP signals of test positions .2 through .4 have three different operating modes :

(b) MANUAl operation by pushing the [START]key or, if a probe cable withtest initiation button is connected, by this test initiation button.

(c) PIPx via external optically isolated PIPx input

(d) AFTER the end of measurement at the previous test position.

For using the AUTOPIP please pay attention to the hints in chapter

"6.1.1.4. Automatic Triggering (AUTOM-PIPcod." on page 6-56).

Furthermore, the [START]key on the eddylinerPxrespectively the test initiationbutton on the probe cable can be used to start measurement in all PIP operating

modes. These keys always refer to the block of tests containing the displayed

channel. If all channels are displayed, they refer to channel .1 .

The PIP operating mode AFTER generates an internal PIP signal when testing is

completed at the previous test position. Then, the test result is combined with the

result of the test position before the previous one. Every "block of tests" (displayed

between the columns "coil" and "time") requires only one single external PIP signal.

The total test time comprising all test times of one block of tests is displayed in the

column "time" at the end of every block. The MPRG signal (Measuring in Progress)

is not switched off between two test positions connected via AFTER-PIP, it remains

active for the complete block of tests. Due to this, one block of tests can be

considered as one single test.

Position the cursor to the column under "Pip" and in the line of the desired test

position using the cursor keys. The PIP operating mode is now shown inverted.

Press [+]or [-]to select the desired PIP operating mode.

Repeat these steps until all test positions are set to the correct PIP operating

mode.


Press [+]The PIP operating modes selected are now active.

A detailed explanation of the various PIP operating modes including setting

instructions for AUTOPIP is given in chapter "6.1.1. Start of measurement (PIP)", on

page 6-56.

4.2.1.9. Allocation of coils

The eddylinerPx has x channels for subsequent testing. If the eddylinerPx is

connected to a coil switch, a coil to be used for testing can be selected for every test


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position. Coil 1 is firmly allocated to test position 1. To the other test positions (.2

through .4 for the eddylinerP4) any coils or pairs of coils can be allocated. There is

a choice only of those coils connected to the coil switch.

In most applications, coil x will be allocated to the test position x. The allocation ofone coil to several test positions may be sensible if, for example:

- a part is tested by one coil at several positions,

- different parts are tested by one coil or

- a part is tested at both ends and/or a recognition of direction is done by

two coils

The choice of test coils effects the logic combination of the OKx sort outputs and

thus - if generated - on the OKS/NGS signals as well. Every combination is

displayed in the column "Sorting" in front of OKx and means an AND operation of

the individual OKx signals.

Move the cursor to the column under "Coil" and to the line of the desired test

position .2 through .4 . The number of the coil is shown inverted.

Press [+]or [-]to select the desired coil.

Repeat these steps until the correct coil is allocated to every test position.

Press [F4], SAV,

and an interrogation window will appear.

Press [+]The allocation of the coils to the test positions is now active.

4.2.1.10. END-impulse

Every channel generates a separate ENDx-signal (output end of testing with

channel .x) (END1 to END4 for eddylinerP4). In the modes RECORDING O.K.-

PARTS and SORTING after termination of every test with channel .x an ENDx-

signal is generated.

When using sum signals (see chapter "4.2.1.11. Generation of the sum sort outputs

OKS/NGS" on page 4-14) after termination of the last logically linked test,

additionally to the end signal of the single channel an END-signal will be generated.

For the signal length a value ranging from 50 ms to 5,000 ms must be selected via

[+] and [-]. A zero value switches the END- or the ENDx-signal off. When theoperating mode RECORDING O.K. PARTS OR SORTING is quit, the END- or the

ENDx-signal disappears as well.


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Move the cursor to the column under "Endimp." and to the line of the desired test

position. The respective signal length is shown inverted.

Press [+]or [-]

to select the desired signal length.

Repeat these steps until all test positions .x are set to the correct ENDx- signal

length and - if applicable - the correct END-signal length is set for the logic

operation of the sum sort outputs.


Press [+]The setting selected is now active.

4.2.1.11. Generation of the sum sort outputs OKS/NGS

Every channel provides a separate OKx-signal (sort output OK of channel .x) (OK1

to OK4 for eddylinerP4).

In many cases, connection of a sorting gate or a PLC can be facilitated by doing the

logic operations of the individual test results in the eddylinerPx already. In this

case, instead of (or in addition to) the OKx and ENDx outputs the sum sort outputs

OKS/NGS and the output END are used.

The sum sort outputs OKS/NGS can be generated by an AND or an OR operation

from the (possibly combined) OKx signals available.

The AND operation is an obvious choice e.g. for testing one part at several

positions. OKS will be placed after termination of test at the last test position only if

every position was OK, otherwise NGS will be activated.

The OR operation is used e.g. for testing a part at both ends, if a recognition of

direction is done by two coils or if different parts are sorted. OKS is placed after

termination of test at the last test position if at least one of the OKx signals used was

placed, otherwise NGS will be activated.

Whenever the OKS/NGS signals are used, the sequence of test

positions must be strictly adhered to !

When testing different types of parts, a logic combination of the OKx signals may not

be sensible. In this case, the logic combination should be switched off.

The choice of logic operation effects not only the generation of OKS and NGS

signals, but also the logic combination of the test positions when recording, marking,

deleting and counting parts.


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Move the cursor to the last line of the column "Sorting". The kind of logic

operation and the term "OKS" are shown inverted.

Press [+]or [-]

to select the desired kind of logic operation.


Press [+]The function selected is now active.

4.2.1.12. Coil moni tor ing

During function Coil monitoring: 'ON' the test coils will be checked for short circuit orinterruption. In those cases, the test procedure will be interrupted, the ALARM

output activated and an error message issued on the screen.

Move the cursor to "Coil monitoring:" using the cursor keys. The word is now

shown inverted.

Press [+]to switch the monitoring from OFF to ON or vice versa.

Press [F4], SAV,

and an interrogation window will appear.

Press [+]the setting selected is now active.

In order not to extend test time unnecessarily, this monitoring is always done during

automatic self-calibration (see manual, chapter "6.5.4 Automatic Self-Calibration").

During sorting or recording of material data (if the PIP is not deactivated), automatic

self-calibration is done in regular intervals (when the instrument is switched on,

approx. every minute, later approx. every 10 minutes). For trial purposes, automatic

self-calibration may be forced as follows:

1) by calling up the menu TEST SETUP or

2) by changing the AUTOPIP frequency in this menu (if the AUTOPIP is switched

on)

If a coil defect occurs during sorting, all parts are sorted NOK at first because the

parts do not meet the tolerance fields. In the next automatic self-calibration, the

defect will be recognized and reported. This prevents that unconsciously, OK parts

are recorded with defective coils.


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In special applications, it is recommended to deactivate coil monitoring:

1) If customized coils with very small or very large impedance are used or

2) if magnetic noise fields occur

because in these cases, false alarms may result.

4.2.2. TEST-SETUP

In the menu TEST-SETUP all settings which depend directly on the parts to be

tested are done. In order to guarantee easy change-over to a different type of test

part, 50 test parameter setups can be stored internally. The number of the setup (1..

50) and a setup name which can be chosen by the user help to easily identify the

test parameters. Before software version Px215 or CPU Mod F only 10 Setups areavailable.

Fig. 4.8 shows the TEST-SETUP.

F2

START

F1

F3

F4 ESC

QUIT

F?

?

Information window

Fig. 4.8

General test parameters and information are displayed underneath the information

window and in the first two lines on the right of the information window. The test

parameters which can be set separately for every channel are displayed on the right

side of the display underneath the setup name.

When the menu TEST-SETUP is called up, the significance of the softkeys changes.

Fig. 4.9 gives the detailed definition of the soft keys in the menu TEST-SETUP.


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TEST SETUP

D

E

F

Display of

BASIC SETUP

on the screen

Store displayed set as

active setting

Read and display

test parameters from

EXTERNAL SETUP module

Store test and com-


on SETUP module

E

S

L

S

E

S

S

A

V

Fig. 4.9

After the TEST-SETUP menu has been called up, it is invariably the current

instrument setting that is displayed; the displayed setting is identical to the current

setting. All changes are done on the screen only at first and can be cancelled at any

time by pressing [F4], SAV, and pressing [-] on inquiry. Only when the displayedsetting is stored by pressing [F4], SAV, and pressing [+] on inquiry, the setting isactivated.

You can quit the TEST-SETUP menu only by pressing the [ESC] key. If you havemodified the set parameters (e.g. by selecting another set) without storing them via

[F4], SAV, an interrogation ensues. Then you must decide on either storing thechanges via [+]key or on rejecting them via [-] key or on having another look at thechanges made via [ESC]key.

Under every setup number the test parameters for all existing channels are stored,

i.e. for the eddylinerPxfor the channels .1 to .4 (see fig. 4.10).

The material data of the parts recorded during RECORDING OF O.K.-PARTS are

notstored under the setup number ! When calling up a setup number containing

valid tolerance fields, however, automatically four "O.K.-parts" are generated. Thesefour "parts" represent all formerly existing, O.K.-parts which were not stored.


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stored test parameters

displayed test parameters

(10 internal sets)

Set01.4

Set01

Set01.3Set01.2Set01.1

Set02

Set03

Set10

Fig. 4.10

The screen of the TEST-SETUP is explained in detail in fig. 4.10 on page 4-18. The

following parameters are valid for all channels and are stored only once per setup

number:

Setup number

Setup date (generation or last modification of setup)

Setup name

Interference suppression

The following parameters are valid only for the channel indicated on the screen and

are stored for every channel once (i.e. four times for eddylinerP4) per setup

number:

Tolerance fields, if formed

Tolerance field factors (tolerance field dimensions)

Test frequencies

Test time for individual frequency

Settling delay

Test time (time for the individual test frequencies plus settling delay)

The parameters in the AUTOPIP information window (in the bottom part of the

screen) are displayed only if the PIP of channel .1 is set to AUTOM in the

communication parameters. The AUTOPIP-frequency and the AUTOPIP threshold

value are always valid for channel .1 and are stored only once per setup number.


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If the 50 internal setups provided by the eddylinerPx are not sufficient, more

storage capacity is available in external setup modules.

For storage of the displayed test parameters on the external setup module (ESM),

press [F3], SES. The test parameters displayed and the active communicationparameters will be stored on the ESM. This allows the storage of the complete

setting of the eddylinerPxseparately for safety reasons.

In order to load all test parameters (without communication parameters) in the

TEST-SETUP from the external setup module (ESM), proceed in the following

manner:

Move the cursor to the word "Set..". The word is now shown inverted.

Press [+]or [-]

to select a setup number, the internally stored data of which c

eddyliner px user manual

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