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CONTENTS
OPERATION AND WIRING DIAGRAMS................ 2
REPAIR GUIDE.......................................................10
SPARE PARTS LIST...............................................17
REPAIR SHEET...................................................... 19
" r e p a r a t i o n
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
AND REPAIR MANUAL
AND REPAIR MANUAL
AND REPAIR MANUAL
AND REPAIR MANUAL
PAGE
2
3
5
6
10
11
11
14
16
n o
inver ter
p r o b l e m ! "
cod. 988584
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Table of Contents
Related Manuals for Telwin TECNICA 141-161
Summary of Contents for Telwin TECNICA 141-161
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Page 1: Table Of Contents
cod. 988584 inver ter TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING AND REPAIR MANUAL AND REPAIR MANUAL AND REPAIR MANUAL AND REPAIR MANUAL CONTENTS PAGE OPERATION AND WIRING DIAGRAMS....2 Block diagram Analysis of the block diagram Illustrations Wiring diagrams REPAIR GUIDE............10 Equipment required General repair instructions Troubleshooting and remedies Testing the machine... -
Page 2: Operation And Wiring Diagrams
TECNICA 141 - 161 OPERATION AND WIRING DIAGRAMS OPERATION AND WIRING DIAGRAMS OPERATION AND WIRING DIAGRAMS OPERATION AND WIRING DIAGRAMS BLOCK DIAGRAM - 2 -... -
Page 3: Analysis Of The Block Diagram
TECNICA 141 - 161 ANALYSIS OF THE BLOCK DIAGRAM Block 9 Inductance NOTE: Unless indicated otherwise, it should be assumed that Consisting of: L2. the components are assembled on the power board. Levels the secondary board diodes’ output current making it practically continuous. - Page 4 TECNICA 141 - 161 Block 18 Current potentiometer Consisting of: R7. This is used to set the reference voltage needed to adjust the output current: when the potentiometer knob is turned the cursor voltage varies, thus varying the current from the minimum to the maximum value.
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Page 5: Illustrations
TECNICA 141 - 161 ILLUSTRATIONS Power board (11) FLY-BACK POWER SUPPLY PRIMARY EMC RECTIFIER POWER FILTRE BRIDGE PRE-CHARGE TRANSFORMER CONTROL BOARD (18) CURRENT POTENTIOMETER (24) POWER SUPPLY (17) ALARM (21) GALVANIC SEPARATION FILTER (10) SECONDARY FILTER EMC (12) CHOPPER DRIVER CURRENT SECONDARY INDUCTANCE... -
Page 6: Wiring Diagrams
TECNICA 141 - 161 WIRING DIAGRAMS General wiring diagram - 6 -... - Page 7 TECNICA 141 - 161 Wiring diagram for power – power supply/control board - 7 -...
- Page 8 TECNICA 141 - 161 Wiring diagram for power board – power / driver - 8 -...
- Page 9 TECNICA 141 - 161 Wiring diagram for control board - 9 -...
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Page 10: Repair Guide
3 Variac 0 - 300v 1500 VA cod. 802402 (*) 4 Digital multimeter USEFUL INSTRUMENTS 5 Unsoldering station 6 Miscellaneous tools (*)The instruments with codes can be supplied by Telwin. The sale price is available on request. - 10 -... -
Page 11: General Repair Instructions
Current potentiometer R7 fig. 3 H) The boards (repaired when necessary) and the wiring should Probable cause: never be modified without prior authorisation from Telwin. mechanical shock. For further information on machine specifications and Relay K1 fig. 3 operation, refer to the Instruction Manual. - Page 12 TECNICA 141 - 161 broken rheophore on one or more capacitor: the remainder 6.0 Electrical measurements with the machine in will be overstressed and become damaged by operation overheating; WARNING! Before proceeding with faultfinding, we should ageing after a considerable number of working hours; remind you that during these tests the power source is overheating caused by thermostatic capsule failure.
- Page 13 Q1. (printed in white on the component side after the initials TW). E) Make sure the waveform displayed on the oscilloscope This is the reference code for requesting a replacement: Telwin resembles fig. B. may supply boards that are compatible but with different codes.
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Page 14: Testing The Machine
TECNICA 141 - 161 diodes D14 and D20 ( WARNING! Make sure there is Set up the dual trace oscilloscope, connecting probe CH1 insulation between the case of diode D20 and the (x100) to the collector on Q1 and probe CH2 (x10) to pin 9 on strip dissipator) in the PCB bump contacts, placing 4 spacers J6 (plasma control board). - Page 15 TECNICA 141 - 161 1.3 Tests for the TECNICA 141 FIGURE E In this case the tests are exactly the same as for the Tecnica 141 and can be carried out in the same way with the exception SETTINGS: · PROBE CH1 x100 of the following points in section 1.2: ·...
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Page 16: Illustrations
TECNICA 141 - 161 ILLUSTRATIONS FIG. 1 CURRENT REGULATION SCREWS FASTENING POTENTIOMETER HANDLE POWER SUPPLY LED SCREWS FASTENING ALARM LED BACK PANEL DINSE SOCKET SCREWS FASTENING TOP COVER SCREWS FASTENING FRONT PANEL FIG. 2A FIG. 2B BUMP BUMP CONTACTS RHEOFORES RHEOFORES CONTACTS FILTER... -
Page 17: Spare Parts List
TECNICA 141 - 161 ELENCO PEZZI DI RICAMBIO - LISTE PIECES DETACHEES SPARE PARTS LIST - ERSATZTEILLISTE - PIEZAS DE REPUESTO Esploso macchina, Dessin appareil, Machine drawing, Explosions Zeichnung des Geräts, Diseño seccionado maquina. 12 2 Per richiedere i pezzi di ricambio senza codice precisare: codice del modello; il numero di matricola; numero di riferimento del particolare sull'elenco ricambi. Pour avoir les pieces detachees, dont manque la reference, il faudra preciser: modele, logo et tension de I'appareil;... - Page 18 In order to improve the service, each servicing centre is requested to fill in the technical card on the following page at the end of every repair job. Please fill in this sheet as accurately as possible and send it to Telwin. Thank you in advance for your co-operation!
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Page 19: Repair Sheet
TECNICA 141 - 161 Official servicing centers Repairing sheet Date: Inverter model Serial number: Company: Technician: In which place has the inverter been used? Building yard Workshop Others: Supply: Power supply From mains without extension From mains with extension m Mechanichal stresses the machine has undergone to cription: Dirty grade... - Page 20 TELWIN S.p.A. - 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...