mg014-2 servisní manuál service manual alfin 150 tig hf
Contents
1. be Approved 1042. replaced The varistor is a blue disc near the ground wire of the power board This device is for protecting the board from input overvoltage When there is overvoltage it explodes causing a short circuit most of the times If the extent of the short circuit is very high they become an open circuit PICTURE 5 Ultima modifica Last Modify 18 03 2008 Rev0 pagina 14 di 17 150 T 150 W To check the mosfet of the switching power supply unit carry the following measurements with a diode tester co Lu Should there be a short circuit of these measurements or an OL instead of a numeric value the power board must be replaced Tester or digital millimetre OL means Open Loop M Lu n Ultima modifica Last Modify 18 03 2008 RevO pagina 15 di 17 150 T 150 W Check that the cable 24V that connect the Front Panel and the HF board is whole and well inserted for HF transformer Solenoid Valve problem Check that the ampenol wiring are intact and well inserted 24V 140 T PICTURE 8 In order to reset the parameters switch the machine on while the S1 and S3 buttons are being pressed Amphenol Connector Ultima modifica Last Modify 18 03 2008 Rev0 pagina 16 di 17 MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF Vypracoval P ezkoumal Schv lil Worked out ZM Inspected
3. zkratu velmi vysok obvod se p eru ALFA IN a s SERVISN TECHNICK DOKUMENTACE MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF page 8 Pro kontrolu tranzistor zm te podle n sleduj c tabulky testerem diod 6 D 05 91 5 O 0 S 06 Hodnoty jsou orienta n Nam te li zkrat nebo rozpojen obvod OL je nutn PCB vym nit Digit ln multimetr OL ozna uje p eru en obvod ALFA IN a s SERVISN TECHNICK DOKUMENTACE 150 T 150 W CAUTIONI Before carrying out any work on the machine make sure it is off and the plug has been dis connected PROBLEM CASE SOLUTION The machine does not Electrical power does not reach the ma Make sure the line switches are closed the switch on chine protection devices fuses have not been enabled and that the power supply cable is intact Switch the machine off and disconnect the Voltage reaches the machine switch but plug Make sure that when the switch is there is no voltage after the contacts closed there is continuity between the contact input and output and that the varis tor is not broken picture 5 If it s dama There is voltage after the disconnecting ged the Power Board must be replaced switch but the machine does not go on Switch the machine off and disconnect the plug Check the mosfet of the switching power supply unit on the power board picture 6 If it s damaged the Power Boar
4. FOR HANDLE 016 001 0001 chladi L 107 DISSIPATER L 107mm 1 10 016 001 0002 chladi 50 DISSIPATER L 50mm 2 11 016 001 0003 6 8951 75 DISSIPATER L 75mm 1_ 12 A020510 6 samice FIXED SOCKET 200A 2 13 0320020255 usm r ova v stupn ISOTOPE DIODE 14 0400010001 vypina hlavn ISOTOPE DIODE 15 040 001 0002 chr ni TWO POLE SWITCH 16 040 003 1080 termostat THERMAL CUT OUT 17 042 003 0001 trafo PLANAR 1 TRANSFORMER 18 045 000 0001 vjwodkat 19 045 000 0002 malicev vodky CABLEGRP2 20 0450020001 kabelp vodn 3x25 NEOPRENE CABLE 21 0450050005 bonk SHUN 1 22 045 006 0005 9 98 shur 1 23 046 002 0002 sl dov SHEET OF MYLAR 24 046 003 0401 Vo kaisola n SHEETOFSILPAD 2 25 050 001 0004 POBHFsa HFBOARD 050 002 0001 8596 POWERBOARD 28 050 517 1400 PCB d c A150T span FRONT PANEL 29 044 003 0001 cika HF staru TRANSFORMER a je WIRING eens reser WIRING 32 022 002 0004 kabel propoj HF SHUNT 33 017 001 5512 SOLENOID VALVE 021 000 0000 sada pro p p plynu KIT FOR GAS 1 CONNECTORS ALFA IN a s SERVISN TECHNICK DOKUMENTACE MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF page 5 021 004 3360 konektor ovl h
5. MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF page 1 SERVISN MANU L ALFIN 150 TIG SERVICE MANUAL ALFIN 150 TIG HF HF 1 VAROV N UPOZORN N Pouze osoba spl uj c kvalifikaci danou z konem je opr vn na opravovat stroj P ED OTEV EN M KRYTU STROJE JEJ ODPOJTE VYTA EN M S OV VIDLICE ZE S T Ka d 4 m s ce otev ete stroj a jemn ho vyfoukejte stla en m such m vzduchem POZOR NEPOUZIVEJTE STLA EN VZDUCH O P LI VYSOK M TLAKU ABY NEDOSLO K MECHANICK MU POSKOZEN ELEKTROSOU STEK Ka d 4 m s ce zkontrolujte dn stav sva ovac ch kabel a s ov ch kabel Nen povolena dn modifikace sva ovac ho stroje Pro Va i bezpe nost je nutn pose kat se sund n m krytu ze stroje po odpojen ze s t po dobu minim ln 5 minut kdy klesne nap t na kondenz torech na hodnotu pod 36 V NOTE Only trained personnel are permitted to work inside the machine BEFORE OPENING THE MACHINE CUT OFF ITS ELECTRICAL POWER BY REMOVING THE PLUG FROM THE MAINS SUPPLY SOCKET Every six months open the machine and clean it inside using compressed dehumidified air CAUTION DO NOT USE COMPRESSED AIR AT TOO HIGH A PRESSURE YOU COULD DAMAGE THE ELECTRONIC COMPONENTS With the same frequency check the welding cables and the supply cables No modification of any type may be made to the welding machine For safety while maintaining
6. a Last Modify 18 03 2008 Rev0 Otherwise reset the parameters and reset the machine picture 8 pagina 12 di 17 150 T 150 W Position of the connector in which they are inserted thermal protection device yellow wires position 2 5 Wire for the output voltage reading position 3 red Shunt wires position 1 4 6 pin connector Check the continuity of contact of the thermal protection de vice with the diode tester with the heat sink tool temperature less than 40 C Check the continuity between socket and the shunt socket and the output voltage wire Remove the snubber board and check with a diode tester the stauts of the transil At the ends of the two transils see below positioned on the snubber board OL must always be measured CN Lu Jil Transil Ultima modifica Last Modify 18 03 2008 RevO pagina 13 di 17 150 T 150W Input bridge rectifier To check the Input bridge rectifier carry out the following measurements with a diode tester PICTURE 3 Should there be a short circuit on one of these measurements the input bridge rectifier must be replaced To check the inverter carry out the following measurements with a diode tester Red Probe Black Probe Measure PICTURE 4 Should there be a short circuit on one of these measurements or an OL instead of a numeric value the power board must be
7. d be damaged or not correctly inserted Replace the front panel board first verify that the spare part has the right software The HF board must be replaced Connect the cables or if damaged replace them picture 8 Remove the gas connection Carry out a gas test on the front panel in the TIG pro cedure and check opening of the solenoid valve Reduce gas pressure Restore con nections and carry out a gas test Switch off the machine and disconnect the plug Check the continuity of the solenoid valve cable lf there s no continuity try to repair the damaged cables Check that the connectors are correctly inserted picture 8 The front panel must be replaced The HF board could be damaged in that case It must be replaced Should the operations carried out not have a positive outcome replace the solenoid valve The Torch must be replaced Single out the interruption and replace the wiring The damaged boards must be replaced Switch off the machine and disconnect the plug Replace the Torch Replace the Front Panel Replace the Power Board Connect the shunt wires or if damaged replace them Gas comes out but the Pre gas settings are not correct Regulate pre gas settings machine doesn t weld Regulate in the correct way the slopes welding or the welding current Is not the one set The machine can t stop The slope up and slope down are not cor rectly set Ultima modific
8. d must be replaced The protection devices Damaged power supply cable with short Switch off the machine and disconnect the of the line set off when circuited wires plug Make sure that there are no short cir the switch is activated cuits between the poles of the plug caused by a damaged power supply cable and the machine does Inverter is damaged Switch off the machine disconnect the go on plug and check varistors picture 5 inverter picture 4 Input bridge rectifier picture 3 Switching power supply unit picture 6 If one of these components is damaged replace the power board The front panel does The fan works but the front panel does Switch off the machine and disconnect the not switch on not go on plug Make sure the flat cable that con nects the front panel to the power board is inserted correctly correctly inserted re place the front panel If the front panel does not go on one of the switching power supply unit outputs is broken Therefore the power board must be replaced Both the fan and the front panel do not Switch off the machine disconnect the work plug and check the mosfet of the switching power supply unit picture 6 Ultima modifica Last Modify 18 03 2008 Rev0 pagina 10 di 17 150 T 150 W PROBLEM CASE SOLUTION The output voltage in Wait a few minutes keeping the machine on If the protection device is always each procedure is about to favour cooling of
9. o ku TORCH CONNECTOR 046 004 0003 izol tor pod HF PCB HF BOARD INSULATION 4 KONTROLA SILOV PCB CHECKING THE POWER PCB ALFA IN a s SERVISN TECHNICK DOKUMENTACE MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF page 6 Pozice kontakt v konektoru e teplotn idlo lut dr ty pozice 2 5 e dr t pro sn m n v stupn ho nap t erven pozice 3 e dr ty bo n ku pozice 1 4 Zkontrolujte spojen kontakt tepeln ochrany pomoc testeru diod teplota chladi e nesm b t vy ne 40 C Zkontrolujte spojen mezi obj mkou a erven m dr tem Zkontrolujte pr chodnost mezi obj mkou a vodi i bo n ku Thermal protection device Vstupn usm r ova na silov desce Pro kontrolu m stku zm te tento podle n sleduj c tabulky testerem diod vodi vodi hodnota _ D O 0 F 50 450 0 F O E D 50 450 ALFA IN a s SERVISN TECHNICK DOKUMENTACE MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF page 7 Pro kontrolu tranzistor zm te tyto podle n sleduj c tabulky testerem diod 5 0 028 Hodnoty jsou orienta n Nam te li zkrat nebo rozpojen obvod OLD je nutn PCB vym nit Varistor je bl zko vstupu nap jec ho nap t na silovou PCB Toto za zen slou k ochran PCB p ed vstupn m p ep t m P i p ep t exploduje a zkratuje vstup Je li rozsah
10. oard picture 2 damaged diode check with a diode tester the status of the diode picture 2 damaged inverter check the status of the power board picture 4 The inductive value of the Power Trans The Power Transformer must be replaced former is null When welding the pro Make sure the welding current does not re Decrease the welding current taction devices of the quire greater power than the one supplied line set off by the line The welding is non opti Spattering occurs during welding Make sure welding polarity is correct the mal earth clamp is fixed correctly Ultima modifica Last Modify 18 03 2008 Rev0 pagina 11 di 17 150 T 150 W PROBLEM CASE SOLUTION The machine does not strike in HF mode Gas does not come out from solenoid valve The torch button does work The machine always welds at maximum cur rent The front panel could be damaged The HF board could be damaged HF board cable could be damaged or disconnected Excessive gas pressure Damage solenoid valve wiring The solenoid valve control relay on the front panel is damaged Feeding is missing Solenoid valve is damaged The Torch could be damaged There is no continuity between the amphenol connector and the front panel The front panel or the HF board are damaged The Torch could be damaged The Front Panel could be damaged The Power Board could be damaged The shunt wires coul
11. the machine please shut off the supply power and wait for 5 minutes until Capacity voltage already drops to safe voltage 36V 2 BLOKOVE SCHEMA ELECTRICAL PRINCIPLE DRAWING ALFA IN a s SERVISN TECHNICK DOKUMENTACE page 2 MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF JUNIA AAONA14 O P EOH HOLMINOM PM OdNINOO L ams YOON Z A NEE IMO WELL Ah Lid 1S HOS DWOEZ MIJS MOTE YNATASOLTTE 0 2 1 NCHA CISANH 8 MOH NH 9 88 HALAAANI MACHA CIM 8 1000 00 050 O u WOVE NE V HOYE NES HOLMES SHAY Pe AA NAE HH r z SERVISN TECHNICKA DOKUMENTACE ALFA IN a s page 3 MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF SPARE PARTS 7 N HRADN D LY 3 A roy a T MEV 2 PENE 227 SERVISN TECHNICK DOKUMENTACE ALFA IN a s MG014 2 SERVISN MANU L SERVICE MANUAL ALFIN 150 TIG HF page 4 02 CODE NAZEV DESCRIPTION 1 008 002 0001 _2 006001001 mw 3 011 000 0052 yw 012 001 0000 dr k vnit n INTERNAL FRAMEWORKS 5 012 002 0001 spodn BASE 6 0120020052 FRONT es 012 001 0102 BACK 014 002 0000 Knoflik krytka knofliku HANDLE WITHOUT 1 POINTER COVER
12. the inverter If the ma opened it is it must be chine continues running with the protection accordingly replaced 9V and enabling of the devices on switch the machine off and dis If itis closed make sure the two terminals thermal protection de connect the plug Remove the hood and are well inserted in the connector picture 1 VICE make sure Power board feed problems it must be the temperature of the heat sink tool is accordingly replaced less than 40 C If itis less than 40 C check whether the thermal protective device contacts are normally closed The MMA TIG output The output voltage cable of the Power Switch off the machine and disconnect the voltage is about 10V Board is damaged picture 1 plug u and the machine does Make sure that the wiring contact is cor rectly inserted in the connector Check for continuity between the out put outlets and that the 6 path connector is connected to the power board picture 1 not weld The primary current alarm on the power The power board must be replaced board is activated The output voltage in Switch the machine off and disconnect the Switch off the machine and disconnect the MMA is zero plug Check for a short circuit at the DINSE plug Remove the snubber board plug with a diode tester A short circuit may be caused by damaged transil on the snubber board check with a diode tester the status of the transil on the snubber b
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