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cod. 988656

TECNICA 140.1 - 142

inverter

TECNICA 114

CONTENTS

PAGE

OPERATION AND WIRING DIAGRAMS................ 2

REPAIR GUIDE...................................................... 9

SPARE PARTS LIST...............................................17

REPAIR SHEET...................................................... 19

Block diagram

2

Analysis of the block diagram

3

Illustrations

5

Wiring diagrams

6

Equipment required

9

General repair instructions

10

Troubleshooting and remedies

10

Testing the machine

13

Illustrations

15

TROUBLESHOOTING

AND REPAIR MANUAL

TROUBLESHOOTING

AND REPAIR MANUAL

TROUBLESHOOTING

AND REPAIR MANUAL

TROUBLESHOOTING

AND REPAIR MANUAL

“ r e p a r a t i o n n o p r o b l e m ! ”

Summary of Contents for TECNICA 114

Page 1: ...nalysis of the block diagram 3 Illustrations 5 Wiring diagrams 6 Equipment required 9 General repair instructions 10 Troubleshooting and remedies 10 Testing the machine 13 Illustrations 15 TROUBLESHOO...

Page 2: ...ATION 11 ALIMENTATORE FLY BACK 12 AUXILIARY POWER SUPPLY 25 POWER SUPPLY LED 26 FAN 15 DUTY CYCLE MAKER 16 ADDER 17 ALARM BLOCK 2 PRE CHARGE 3 RECTIFIER BRIDGE 4 FILTER 5 CHOPPER 8 8 SECONDARY DIODE 9...

Page 3: ...8 EMC Filter Pre charge Rectifier bridge Filter Chopper Current transformer Power transformer Secondary diode Block 9 Block 10 Block 11 Block 12 Block 13 Block 14 Block 15 Block 16 Block 17 Inductance...

Page 4: ...rom the minimum to the maximum value Consisting of R70 R71 R72 R73 R74 Used to adjust the maximum cutting current to be supplied by the power source Consisting of ST1 When the temperature of the IGBT...

Page 5: ...6 CURRENT TRANSFORMER 4 FILTER 1 EMC FILTER 5 CHOPPER 7 POWER TRANSFORMER 10 SECONDARY EMC FILTER 8 SECONDARY DIODE 2 PRE CHARGE 25 POWER SUPPLY LED 18 ALARM LED 9 INDUCTANCE 12 AUXILIARY POWER SUPPLY...

Page 6: ...S General wiring diagram POWER PCB 100 115V OR 230V ON L Y MODELS WITH POWER SUPPLY CHANGE J4 J4 J4 J4 J7 J7 230V 230V 115V 115V P4 P4 PE L1 N L2 V1 Fan V1 Fan J1 J1 J2 J2 OUT OUT J3 J3 OUT OUT 5 4 1...

Page 7: ...7 TECNICA 114 Wiring diagram power board power supply...

Page 8: ...7 18V 0W 4 5 R 56 120R 0805 5 R 56 120R 0805 5 12 13 14 4 11 U 2D LM 324 U 2D LM 324 R 49 1K 1206 5 R 49 1K 1206 5 D 26 B YG20G D 26 B YG20G R 38 2K 2 0805 5 R 38 2K 2 0805 5 D 30 18V 0W 4 5 D 30 18V...

Page 9: ...instruments with codes can be supplied by Telwin The sale price is available on request ESSENTIAL INSTRUMENTS USEFUL INSTRUMENTS 1 Dual trace oscilloscope cod 802401 2 Static load generator cod 802110...

Page 10: ...boards when the machine is live Every operation should be carried out in complete safety with the power supply cable disconnected from the mains outlet and should only by done by expert or skilled ele...

Page 11: ...ator diodes and the other in sequence on the two power transformer outlets B With the multimeter set in ohm mode check the following components resistor R2 47ohm pre charge resistors R3 R4 22ohm prima...

Page 12: ...s and is not caused by a fault in the control board there could be a fault in the opto coupler ISO1 Power the power source at the rated voltage of 115Vac In this case the tests are exactly the same as...

Page 13: ...spring should be inserted by pressure on the dissipator in order to lock the component place the dissipator with the new component on the bump contacts of the PCB and attach it with the screws torque...

Page 14: ...he OUT and OUT bump contacts set up the ohmic load with the switch settings as in the table in switch on at the main switch on the front panel turn the current potentiometer to maximum turn clockwise...

Page 15: ...POTENTIOMETER ALARM LED SCREWS FASTENING FRONT PANEL SCREWS FASTENING BACK PANEL SCREWS FASTENING HANDLE DINSE SOCKET ILLUSTRATIONS POWER TRANSFORMER SECONDARY DISSIPATORS POWER SUPPLY INTERRUPTOR FAN...

Page 16: ...ST1 TECNICA 114 BUMPCONTACTS THERMOSTAT ST1 RHEOFORES Q1 SCREWS FASTENING DINSE SOCKETS IGBT DISSIPATOR SCREWS FASTENING Q1 SECONDARY DISSIPATOR SCREWS FASTENING BUMP CONTACTS FAN V1 V1 RHEOFORES D22...

Page 17: ...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...

Page 18: ...atore Condensateur Capacitor Kondensator Condensador Igbt Igbt Igbt Igbt Igbt Rele Relais Relais Relais Relais Diodo Diode Diode Diode Diodo Resistenza Resistance Resistor Widerstand Resistencia 1 2 3...

Page 19: ...ly From mains without extension From mains with extension m Mechanichal stresses the machine has undergone to cription Des Dirty grade Dirty inside the machine Description Rectifier bridge Electrolyti...

Page 20: ...TELWIN S p A Via della Tecnica 3 36030 VILLAVERLA Vicenza Italy Tel 39 0445 858811 Fax 39 0445 858800 858801 E mail telwin telwin com http www telwin com...

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