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User manual EFT/ Burst Generator PEFT Junior...
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Title EFT/ Burst Generator PEFT Junior Release date 17.3.97 Author N. Wright Layout BA_2S_LK.DOC Reference 250231.1 / 00 Number of pages Name of file 2E250231.DOC...
1. Description 1.1 Introduction The PEFT Junior test system, enables electromagnetic immunity testing in accordance with the standard IEC 1000-4-4 (IEC 801-4). The built in single phase mains filter enables coupling of EFT / Burst into the EUT mains supply with minimum disturbance to the general mains.
1.2 Technical data The PEFT Junior, has the following technical characteristics: 1.2.1 Impulse shape Definition in accordance with the standard IEC 1000-4-4 ( IEC 801-4 ) Vnominal Delta V 90 % 50 % 10 % SPIKE FREQ. BURST FREQ: BURST DUR.
High voltage output to coaxial connector type SHV Mains input to integrated filter connector type IEC 320 250 V / 16 A Mains output from integrated filter Euro (Schuko) 250 V / 16 A Tab. 1.2.6 EFT/ Burst Generator PEFT Junior...
The connection "P90 extension" enables ( option ) control of an external coupling filter. Test report By connecting a printer to the serial output. Remote control ( option ) Type RC730 interface for RS232 and IEEE. Tab. 1.2.7 EFT/ Burst Generator PEFT Junior...
Connection to the mains is made using a 10 A cable fitted with the relevant plug: Europe ( CEE-7/VII ) Great Britain ( BS-1363 ) Switzerland ( SEV Type 12 ) USA ( NEMA5-15P ) EFT/ Burst Generator PEFT Junior...
Electrical network for the purpose of transferring energy from one circuit to another Decoupling network Electrical network for the purpose of filtering signals Coupling filter Electrical circuit (single-threephase) (single-threephase) incorporating coupling and decoupling networks High Voltage Tab 1.5 EFT/ Burst Generator PEFT Junior...
Under certain conditions sparks can be produced by the EUT or generator. Because of this the generator must not be used in an area where an explosion hazard exists. WARNING Persons with heart pace makers must not be in the area when the generator is operating EFT/ Burst Generator PEFT Junior...
Fig. 2.4 2.5 Limit of liability This operator manual is an integrated part of the PEFT Junior test system. The safety and operating instructions must be complied with. Emile Haefely & CO LTD. and all its sales partners refuse to accept responsibility for consequential or direct damage caused to persons and / or goods due to non-observance of the user manual or incorrect use of the PEFT Junior.
3.1 Construction The generator comprises the following parts: - microprocessor unit P90, contains all the control elements of the PEFT Junior. - Main PCB, here are mounted the high voltage supply and regulation circuits, the impulse forming circuits, high voltage switch and most elements of the single phase coupling filter.
3.2 Control circuits the P90 microprocessor is the interface between the user and the generator. It controls all the functions of the PEFT Junior. The LCD display has two user accesseable layers, the first is to display parameters and test sequences, the second displays the operational conditions during a test.
3.3 Power supplies the PEFT Junior must be supplied from a single phase supply of either 230 V / 50 Hz or 115 V / 60 Hz. Supply voltage changeover is accomplished by use of the manual switch on the rear panel.
PCB are the 140 uH filter coils. The coupling filter comprises the coupling capacitors and decoupling ( filter ) elements. The coupling path is automatically switched under P90 control. Electronic switch control Waveshape circuit Coupling Decoupling network network Line Line input output Fig. 3.5 EFT/ Burst Generator PEFT Junior...
4.1.1 Ventilation A single fan, mounted on the rear panel, facilitates removal of warm air from the coupling filter. It is recommended that a space be left around the side of the PEFT Junior to assist in warm air dissipation 4.1.2 Primary power.
4.1.6 External coupling filter control - P90 EXTENSION (option) The P90 EXTENSION connection enables control of an external three phase coupling filter type FP-EFT 32.1 directly from the PEFT Junior test system. As for the single phase integrated filter, the generator controls automatically, the coupling mode and synchronisation source.
4.2 Generator front panel HAEFELY HAEFELY CONTROL UNIT PEFT.1 Fig. 4.2 1 - Control unit P90.1 2 - High voltage impulse output connections EFT/ Burst Generator PEFT Junior...
4.2.1 Control unit P90 The PEFT Junior is controlled by a microprocessor control unit. The processor ( 8085 ), monitors generator functions, reads the keypad, sends information to the display, controls test parameters and facilitates the storing and recall of test sequences. The user enters all commands from the front panel.
Frequency -400 Hz Tab. 4.2.1.6 This signal is used to synchronise the PEFT Junior output when operated in conjunction with a coupling filter. 4.2.1.7 Oscilloscope trigger output TRIGGER OUT (7) Available at the TRIGGER OUT socket is a square wave of + 15 V amplitude with the negative edge synchronised to each burst.
The BSP key shifts the cursor by one digit to the left. the key is useful for corrections. The UP key increments a numerical value or changes the value of a pre defined alphanumeric character. The DWN key decrements a numerical value or changes the value of a pre defined alphanumeric character. EFT/ Burst Generator PEFT Junior...
Coupling paths are indicated by the lamps L, N, and PE ( 3 ). The generator can perform all the coupling paths required by the standard IEC 1000-4-4. 4.2.2.3 EUT mains protection There is no EUT mains protection. Protection of EUT circuits is the responsibility of the user. EFT/ Burst Generator PEFT Junior...
The high voltage connector is of a type SHV. 4.2.2.5 Ground connection The ground connection ( 6 ), is a reference point to be used when the PEFT Junior is operated in conjunction with an FP-EFT 32.1, for three phase coupling. It is recommended that a braided cable or copper band be used for this connection.
In ECM test laboratories, where the PEFT Junior is used with other test equipment to conduct tests on an EUT, it is important to remember that switching between an EFT / burst source and a surge source is sometimes important without interrupting the EUT supply.
Before entering the remote operating mode, the interface has to be correctly configured. Interface parameters are accessed by holding down any key on the keypad, while simultaneously powering the PEFT Junior on. For more details, see section 6.4. HAEFELY This screen apears after pressing any key Service menu P90.1...
Before using the PEFT Junior, this user manual should be read carefully. 5.2 Operating personnel Operating the PEFT Junior without having read the user instructions, can expose the operator to potential dangers. It is recommended that only trained personnel be allowed to operate the PEFT Junior.
5.4 Installation in accordance with IEC 1000-4-4 The EFT / burst generator PEFT Junior is designed to meet the requirements of the standard IEC 1000-4-4. 5.4.1 Installation for single phase testing The following installation is described in the standard. EFT/B Generator...
FP-EFT 32.1. This filter has the same advantages as the single phase integrated filter, that is automatic control of the coupling paths from the PEFT Junior menu. A system comprising a PEFT Junior and a filter FP-EFT 32.1 enables testing to all levels as for the single phase filter.
To couple into data lines as described in the standard, the capacitive coupling clamp type IP4A is neccessary. PEFT Junior H AEFELY H AEF ELY C ONTR OL U N I T P E FT.1 IP4A Fig. 5.4.3 EFT/ Burst Generator PEFT Junior...
The following examples illustrate some of the possibilities. 5.5.1 System controlled by PC The PEFT Junior can be directly programed from a PC. Using the remote control interface type RC 730 it is possible to communicate directly with a remote PC using either RS232 or IEEE formats.
The objective of such a system, is to conduct several EMC tests on the EUT's single phase mains without powering off the EUT. The following example, using a PEFT Junior and PSURGE 4.1, enables the superimposition of EFT / burst and surge without interrupting the EUT power.
For more information please ask for a brochure from our sales department or local representative. Low Frequency Coupler LFP6 FP-SURGE 32.1 Verification Master PC Surge WINPATS PSURGE 4 Coupler FP-EFT 32.1 PEFT PEFT Junior Printer Fig. 5.5.4 EFT/ Burst Generator PEFT Junior...
6. Operation 6.1 Parameter definition The P90 microprocessor controls all the PEFT Junior functions. Using the P90, test sequences can be written, saved, recalled and edited. After powering the PEFT Junior, the following page is displayed. HAEFELY P90.1 Confirmation of the tester configuration.
- manually ( MAN ): a burst sequence can be triggered by pressing any button on the keypad. In this mode, BURST FREQ transition is not available. - automatically ( AUTO ): a burst sequence is released at the frequency defined by BURST FREQ. EFT/ Burst Generator PEFT Junior...
6.1.2 Burst output BURST OUTPUT The PEFT Junior delivers the burst : - direct to the high voltage output. For example, when coupling into data lines using the IP4A. - through the integrated single phase filter. For coupling into the single phase supply of an EUT connected to the coupling filter output.
Phase 1, neutral and Protection earth - PATH L123 Phase 1, 2 and 3 - PATH L123+N Phase 1, 2, 3 and neutral - PATH L123+PE Phase 1, 2, 3 and Protection earth - PATH L123+N+PE All coupling paths simultaneously EFT/ Burst Generator PEFT Junior...
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PATH L1+PE PATH N+PE OFF → PATH L1+N+PE HAEFELY P90.1 CONTROL UNIT The four modes if selected together, will be OFF → PATH L123 executed sequentially PATH L123+N PATH L123+PE OFF → PATH L123+N+PE EFT/ Burst Generator PEFT Junior...
3 Hz corresponds to a repetition frequency of 1 / 333 ms. The three parameters are inter-related through the following formula: SPIKE FREQ. x BURST DUR. x BURST FREQ. ≤ Max.Nb impulses per second. For the PEFT Junior the maximum is 600. EFT/ Burst Generator PEFT Junior...
- a signal from the front panel SYNC IN connector. - an internal signal ( 50 or 60 Hz ) corresponding to the supply frequency of the PEFT Junior. Synchronisation is defined in relation to the first impulse of a burst.
HAEFELY P90.1 This page displays the functions which can Transition CONTROL UNIT be varied during a test. menu NO TRANSITION activ → VOLTAGE TRANS ..FREQ. TRANS ..TRANS ..→ SYNCRO EFT/ Burst Generator PEFT Junior...
75 → SPIKES/BURST SPIKE FREQ. F-START TRANS. TIME Fig. 6.1.6.2 SPIKE/BURST defines the number of impulses per burst. It enables generation of a constant energy ramp, each burst being composed of the same number of impulses. EFT/ Burst Generator PEFT Junior...
0° TRANS. TIME → SYNCRO ANGLE SYNCRO-START TRANS. TIME Fig. 6.1.6.3 The parameter SYNCRO START defines the ramp start angle in relation to the zero crossing point. The angle starts to increment from this point. EFT/ Burst Generator PEFT Junior...
Press the key F4 to activate or deactivate the printout function. A printout contains the parameter settings as well as the measured test data. Note: It is possible to select printer on or off even when the generator is running a test. EFT/ Burst Generator PEFT Junior...
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1. BURST OUTPUT TO L TEST TIME: Pause at 2.20KV Pause at 2.61KV 2. BURST OUTPUT TO N TEST TIME: Pause at 2.02KV Pause at 2.54KV 3. BURST OUTPUT TO PE TEST TIME: EUT failed fail at 2.41KV EFT/ Burst Generator PEFT Junior...
6.2 Function operation To begin testing with the PEFT Junior, the minimum of parameters have to be entered. Never the less it is necesary to understand how to program the generator. HAEFELY P90.1 Confirmation of the tester configuration. First menu...
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DWN to change the selection → ***PROGRAM*** PROG K PRINTER OFF → In the case where a printer is connected and the output is activated, program interventions such as PAUSE, NEXT and EUT FAILED are recorded on the printout. EFT/ Burst Generator PEFT Junior...
STOPBIT NONE → PARITY HAEFELY After entry of all the parameters, press Configuration P90.1 CONTROL UNIT twice to return to the interface menu. To menu PROTOCOLE NONE→ save this configuration and continue, press RS-232C CR+LF EFT/ Burst Generator PEFT Junior...
Example 2: Using the HP300 controller communicating by IEEE. HP9000 series300 HP-IB configuration BUS ADRESS CR+LF Tab. 6.3.3b 6.3.4 Using the RS232/IEEE type 730 interface The Remote-Control type 730 interface contains two communication standards, IEEE-488 and RS-232C. EFT/ Burst Generator PEFT Junior...
Local). Remote operation is selected with the command "REN" (Remote ENable). 6.3.5 Programing The P90 controller, can be operated by a remote device. The data is composed of parameter commands plus handshake information. Control commands sent to the P90 are held in a buffer EFT/ Burst Generator PEFT Junior...
A sequence of from 2 to 4 ASCII characters <header> using.'A'..'Z';'a'..'z'. There is no differentiation between upper and lower case separation character between <header> and <argument>. < > In the form of either an integer,real number or string. <argument> Tab. 6.3.5.1c EFT/ Burst Generator PEFT Junior...
The remote control debug utility can be accessed from either the remote control module or the application program The following commands activate and deactivate this utility activate utility DEB ON<EOS> deactivate utility DEB OFF<EOS> Tab. 6.3.5.3a EFT/ Burst Generator PEFT Junior...
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No coupling path defined SPIKE FREQ too large BURST FREQ too large Voltage range problem Printer not ready Nominal voltage too big Nominal changed manually EUT failure General error No external filter connected Tab. 6.3.5.3b EFT/ Burst Generator PEFT Junior...
Tab. 6.3.5.3c 6.3.5.4 Error control A list of options specific to the PEFT Junior is given in 6.3.5.5. The options available for systems equiped with the P90 are given below. (ERRor query) The response to a command ERR?, is...
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( same as "Save Program in XX" from local mode). argument: Integer (within the system range) Tab. 6.3.5.4e example controller save program in memory position 5 PROG 5<EOS> (PRinTer) Enables or disables the printer. argument. ON, OFF EFT/ Burst Generator PEFT Junior...
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The bit "EUT Failed" is only present when the entry "EUT Failed" is active, It is reset to zero by the following operation. (STOP) Halts the program immediately STOP (function analogous to START/STOP in local mode). Tab. 6.3.5.4j EFT/ Burst Generator PEFT Junior...
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Equipment in run mode (system BUSY specific) Equipment ready for run mode READY Tab. 6.3.5.4m example controller STAT?<EOS> STBY Equipment in standby mode (TiMe Out) Defines the time limit for communication. argument Integer from 0 to 9 Tab. 6.3.5.4n EFT/ Burst Generator PEFT Junior...
6.3.5.5 PEFT Junior remote control commands Command Description Type of parameter V-NOMINAL (kV) Real POLARITY POS, NEG TRIGGER TRIG Auto, Man TO HV OUT HVOT On, Off TO LINE 3PHASE P3PH On, Off PATH L or PATH L1 On, Off...
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R6= N+PE R7= L+N+PE Geneartor status STAT (STBY,BUSY,READY) Actual configuration CONF String[20] Initiate trigger STOP generator STOP START generator STRT Pause x x x On, Off PAUS Time Out x x x Tab. 6.3.5.5b Integer EFT/ Burst Generator PEFT Junior...
"STOP" PR1 "GTL" PR1 mode CLEAR Tab. 6.3.6a The programs are a quick demonstration of command principles. The parameters not definrd in the examples are set to their default values. EFT/ Burst Generator PEFT Junior...
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! Delay for communication 340 ENTER 712;TTMEreal 350 IF TTMEreal<TTMEset THEN ErrTTME$="LIMIT Test Time MAX" ! Test overlimit 360 IF TTMEreal>TTMEset THEN ErrTTME$="LIMIT Test Time MIN" ! Test unterlimit 370 ErrTTME$="ok" 380 PRINT TABXY(35,12);"Test Time :";TTMEreal,ErrTTME$! Display EFT/ Burst Generator PEFT Junior...
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1210 PRINT TABXY(10,10);"ACTUAL TEST VOLTAGE" ! Display 1220 PRINT TABXY(10,12);CACT;" kV" ! Display 1230 1240 1250 beforeend 1260 OUTPUT 712;"STOP" ! Savety in case of none stop 1270 OUTPUT 712;"GTL" ! Go to local mode 1500 END EFT/ Burst Generator PEFT Junior...
To select an output, do not forget, the HV OUT socket is active by default ( HVO=ON ) and all other coupling paths are inactive. If coupling to a filter is required, first deactivate the path HV OUT before entering a coupling path. example: EFT/ Burst Generator PEFT Junior...
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2410 OUTPUT 712;"HVOT OFF" ! Setting HV out off 2420 OUTPUT 712;"PL ON" ! Setting coupling L EFT/ Burst Generator PEFT Junior...
The PEFT Junior is initialised by switching on the mains. Diagram 6.4.1 illustrates the menu possibilities. Diagram 6.4.2 defines the procedure for programing a test sequence. Functions which can be changed when the PEFT Junior is operating (RUN MODE ) are shown in diagram 6.4.3. 6.4.1 Menu configuration system service menu RESET ALL PROGRAM ->...
After a period without use, it is recommended that the electrical contacts and air passages be cleaned. 7.2 Measurement requirements An attenuator to measure the voltage is available for the PEFT Junior. The measured signal can be displayed on a storage oscilloscope. The oscilloscope should have a 400 MHz. minimum bandwidth.
The following procedure is a quick manual verification of the PEFT Junior. Using the WinPATS ( option ), it is possible to make an automatic verification of the PEFT Junior. The following is an extract from the PEFT Junior service manual.
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IEC 801-4 PASS / FAIL Step Vnominal POLARITY Burst [ns] [ns] [kV] Output active 0.5kV TO HV-OUT TO HV-OUT TO HV-OUT TO HV-OUT 0.5kV TO HV-OUT TO HV-OUT TO HV-OUT TO HV-OUT Tested by Date EFT/ Burst Generator PEFT Junior...
No external filter is connected to the P90 no external filter extension connected System stopped: generator stopped The printer is not conected or not printer not ready configured correctly The option selected is not available required option not implemented Tab. 8.1 EFT/ Burst Generator PEFT Junior...
8.2 Fault diagnostics The EFT / BURST generator PEFT Junior was designed and produced in accordance with the quality standard ISO 9001. If however a functional failure does occur, it is important to complete the following table which will assist in the search for the problem and help reduce system down time.
In this case, please note the error message and immediately contact your Haefely representative who will inform you of the nearest service center. To assist in the repair of your PEFT Junior, please complete the following checklist and send to your repairing agent.
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Check-list to be completed when returning a PEFT Junior: Customer Sales WO Repair WO Company name Contact name Telephone number FAX number Equipment Generator Serial number Software version High voltage module Serial number Interface Serial number Accessories Serial number Remote control...
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Supply voltage ? AC / DC is an isolation transformer used ? Yes / No seperate EUT supply ? Yes / No Test parameters supply ? 1 phase / 3 phase AC / DC type EFT/ Burst Generator PEFT Junior...
8.4 Replacement parts The PEFT Junior service policy does not require the customer to order spare parts with the generator. The components used are held on stock at Haefely and can be supplied quickly to order. If any parts are required, they can be obtained by contacting the Haefely after sales service department.
9.2 Storage for long periods If the PEFT Junior is not to be used for long periods, it is recommended to remove all the supply cables and store the generator in the correct environmental conditions as in section 2.2.
10.1 Packaging The PEFT Junior packaging has been designed to withstand certain transport conditions. It will help protect the PEFT Junior from the effects of vibration, shock and water penetration. However normal precautions and care should be taken during transport.
The PEFT Junior is constructed from metals, aluminium, PVC, and composite materials.All the components can be recycled through the normal industrial recycling system. 11.3 Non-recyclable components The PEFT Junior is made from 100% recyclable material and contains no dangerous substances. EFT/ Burst Generator PEFT Junior...
12. Accessories and options 12.1 Accessories The PEFT Junior is delivered with the following standard acessories: 1 16 Amp.cable with relevant EUT mains cable mains plug fitted. 1 10 Amp.cable with relevant Generator mains cable mains plug fitted. 1 User manual...
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