Telwin TECNICAPLASMA18-31 Скачать руководство пользователя страница 16 | Manualshive

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ILLUSTRATIONS

FIG. 1

SCREWS

TOP COVER

POWER SUPPLY LED

CURRENT REGULATION

POTENTIOMETER

PLASMA

TORCH

POWER

TRANSFORMER

POWER SUPPLY

INTERRUPTOR

FAN WIRE

POWER

BOARD

FILTER

+

AIR REDUCTER

INDUCTANCE

FAN

BOARD

SCREWS

FASTENING

BUMP

CONTACTS

THERMOSTAT

ST2

RHEOFORES

Q2

RHEOFORES

D14

BOARD

SCREWS

FASTENING

BOARD

SCREWS

FASTENING

Q2 DISSIPATOR

SCREWS

FASTENING

SCREWS

FASTENING

WORK CABLE

SCREWS

FASTENING

TORCH

CABLE

FASTENING

INDUCTANCE

SECONDARY

DISSIPATOR

SCREWS

FASTENING

RHEOFORES

D38,D37,D36

FIG. 2A

FIG. 2B

FIG. 4

PRIMARY

DIODE

D14

PRIMARY

DIODE

D20

IGBT

Q1

DRIVER

IGBT

Q1

(ISO3)

THERMOSTAT

ST1

(ONLY FOR TECNICA P.31)

IGBT

Q2

DRIVER

IGBT Q2

(ISO2)

RHEOFORES

Q1

RHEOFORES

D20

- 16 -

TECNICA PLASMA 18 - 31

TORCH

POWERD LED

ALARM

LED

WORK CABLE

SOLENOID VALVE

FIG. 3

C2

C3

R1

U2

C10

DIODES BRIDGE

D1

RELÈ

K1

CONTROL

BOARD

(J8)

PLASMA

D32

R42

LED

D2

LED

D26

ISO1

R42

DIODES

SECONDARY

DISSIPATORS

IGBT

PRIMARY

DISSIPATORS

R27

R21

FLY BACK

TRANSFORMER

RELÈ

K2

C13

J9

LED

D35

D30

BUMP

CONTACTS

FAN V1

D36 D37 D38

DIODES

SECONDARY

Q1 DISSIPATOR

SCREWS

FASTENING

THERMOSTAT

ON POWER

TRANSFORMER

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Содержание TECNICAPLASMA18-31

Страница 1: ...PAGE OPERATION AND WIRING DIAGRAMS 2 REPAIR GUIDE 10 SPARE PARTS LIST 17 REPAIR SHEET 19 Block diagram 2 Analysis of the block diagram 3 Illustrations 5 Wiring diagrams 6 Equipment required 10 General repair instructions 11 Troubleshooting and remedies 11 Testing the machine 14 Illustrations 16 TROUBLESHOOTING AND REPAIR MANUAL TROUBLESHOOTING AND REPAIR MANUAL 20 09 04 ...

Страница 2: ... ARC RESISTANCE OUTPUT CURRENT POTENTIOMETER GALVANIC SEPARATOR AIR RALAY GALVANIC SEPARATOR TORCHE BUTTON AIR SOLENOID VALVE AP BLOCK DIAGRAM OPERATION AND WIRING DIAGRAMS OPERATION AND WIRING DIAGRAMS OPERATION AND WIRING DIAGRAMS OPERATION AND WIRING DIAGRAMS PRE CHARGE RECTIFIER BRIDGE FILTER CHOPPER SECONDARY DIODES SECONDARY EMC FILTER PRIMARY CURRENT READER AND LIMITER DUTY CYCLE MAKER ALAR...

Страница 3: ...Block 12 Block 13 Block 14 Block 15 Block 16 Block 17 Inductance Secondary EMC Filter Flyback power supply Driver Primary current reader and limiter Duty cycle maker Adder Alarm Block Alarm LED Consisting of L2 Levels the secondary board diodes output current making it practically continuous Consisting of C50 C51 Prevents noise from the power source from being transmitted through the welding cable...

Страница 4: ...ck 21 Block 22 Block 23 Block 24 Block 25 Block 26 Current potentiometer Maximum current adjustment Plasma cycle control control board Power transformer thermostat IGBT thermostat Galvanic separator Overvoltage safeguard Undervoltage safeguard Power supply LED Consisting of R42 This is used to set the reference voltage needed to adjust the output current when the potentiometer knob is turned the c...

Страница 5: ...D VALVE 3 RECTIFIER BRIDGE 11 FLY BACK POWER SUPPLY PLASMA CONTROL BOARD 4 FILTER 1 EMC FILTRE PRIMARY 7 POWER TRANSFORMER 10 SECONDARY FILTER EMC 8 SECONDARY DIODES 2 PRE CHARGE 18 CURRENT POTENTIOMETER 26 POWER SUPPLY LED 30 TORCH POWERED LED 17 ALARM LED 9 INDUCTANCE ILLUSTRATIONS ...

Страница 6: ... 6 TECNICA PLASMA 18 31 TECNICA PLASMA 18 31 WIRING DIAGRAMS General wiring diagram ...

Страница 7: ... 7 TECNICA PLASMA 18 31 TECNICA PLASMA 18 Wiring diagram for power power supply control board Wiring diagram for power board power driver ...

Страница 8: ... 8 TECNICA PLASMA 18 31 TECNICA PLASMA 31 Wiring diagram for power board power supply control Wiring diagram for power board power driver ...

Страница 9: ... 9 TECNICA PLASMA 18 31 TECNICA PLASMA 18 31 Wiring diagram for control board ...

Страница 10: ...s available on request REPAIR GUIDE REPAIR GUIDE REPAIR GUIDE REPAIR GUIDE EQUIPMENT REQUIRED ESSENTIAL INSTRUMENTS USEFUL INSTRUMENTS 1 Dual trace oscilloscope cod 802401 2 Static load generator cod 802110 3 Variac 0 300v 1500 VA cod 802402 4 Digital multimeter 5 Unsoldering station 6 Miscellaneous tools ...

Страница 11: ...nnected from the mains outlet undo the 10 screws fastening the cover to the bottom 5 screws on each side slide out the cover upwards After completing the repairs proceed in the reverse order to re assemble the cover and do not forget to insert the toothed washer on the ground screw Using suitably dried compressed air carefully clean the components of the power source since dirt is a danger to part...

Страница 12: ...stance between the two bump contacts it should be approx 0 ohm thermostat continuity test on the power transformer clean the resin from the bump contacts of ST2 and measure the resistance between the two bump contacts it should be approx 0 ohm Before proceeding with faultfinding we should remind you that during these tests the power source is powered and therefore the operator is exposed to the da...

Страница 13: ...r the Tecnica Plasma 31 and can be carried out in the same way If the fault is in the power board remove it from the bottom as follows with the machine disconnected from the main supply disconnect all the wiring connected to the board remove the current adjustment knob on the front panel of the machine remove any bands constraining the board e g on the power supply cable and connections to primary...

Страница 14: ... or dirt from the dissipator If the diodes have burst the dissipator may have been irreversibly damaged in this case it should be replaced apply thermo conductive grease following the general instructions insert the new diodes between the dissipator and the spring taking care not to damage the component during assembly the screw should be inserted under pressure on the dissipator so as to lock the...

Страница 15: ... manual connect the compressed air supply pressure 4 5 bar make a test cut Check the dynamic behaviour of the power source Power the power source with a rated voltage of 115Vac In this case the tests are exactly the same as for the Tecnica Plasma 31 and can be carried out in the same way with the exception of the following points in section 1 2 replace with in section 1 3 replace with in section 1...

Страница 16: ...CONDARY DISSIPATOR SCREWS FASTENING RHEOFORES D38 D37 D36 FIG 2A FIG 2B FIG 4 PRIMARY DIODE D14 PRIMARY DIODE D20 IGBT Q1 DRIVER IGBT Q1 ISO3 THERMOSTAT ST1 ONLY FOR TECNICA P 31 IGBT Q2 DRIVER IGBT Q2 ISO2 RHEOFORES Q1 RHEOFORES D20 16 TECNICA PLASMA 18 31 TORCH POWERD LED ALARM LED WORK CABLE SOLENOID VALVE FIG 3 C2 C3 R1 U2 C10 DIODES BRIDGE D1 RELÈ K1 CONTROL BOARD J8 PLASMA D32 R42 LED D2 LED...

Страница 17: ...I appareil denomination de la piece numero de matricule When requesting spare parts without any reference pls specify model brand and voltage of machine list reference number of the item registration number Wenn Sie einen Ersatzteil der ohne Artikel Nummer ist benoetigen bestimmen Sie bitte Folgendes Modell zeichen und Spannung des Geraetes Teilliste Nuemmer Registriernummer Por pedir una pieza de...

Страница 18: ... Transformer Stromwandler Transformador De Corriente Induttanza Filtro Inductance Filter Filter Inductance Filter Drossel Induccion Filtro Induttanza Inductance Inductance Drossel Induccion Trasformatore Potenza Transformateur Puissance Power Transformer Leistungstransformator Transformador De Potencia Trasformatore Transformateur Transformer Transformator Transformador Pressacavo Presse Cable Cab...

Страница 19: ...out extension From mains with extension m Mechanichal stresses the machine has undergone to cription Des Dirty grade Dirty inside the machine Description Rectifier bridge Electrolytic capacitors Relais In rush limiter resistance IGBT Snubber Secondary diodes Potentiometer Others Kind of failure Component ref Substitution of primary circuit board yes no Substitution of primary control board yes no ...

Страница 20: ...TELWIN S p A 800 801 Via della Tecnica 3 36030 VILLAVERLA Vicenza Italy Tel 39 0445 858811 Fax 39 0445 858 858 E mail telwin telwin com http www telwin com ...

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