Table of Contents
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CONTENTS
OPERATION AND WIRING DIAGRAMS................ 2
REPAIR GUIDE.......................................................10
SPARE PARTS LIST...............................................18
REPAIR SHEET...................................................... 20
" 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
17
n o
inver ter
p r o b l e m ! "
cod. 988666
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Summary of Contents for Telwin Tecnica 168GE
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Page 1: Table Of Contents
cod. 988666 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 150-152-170-168GE 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
Block 14 Converts the pulsed voltage from the rectifier bridge into Duty cycle maker continuous voltage (C7 fitted on Tecnica 152 only) Consisting of: U2 (control board). Processes the information from block 15 (adder) and block 13 Block 5 (primary current reader and limiter) and produces a square... - Page 4 Indicates when the power source is correctly powered and ready for use. On machines operating exclusively at 230V it is green. On machines with automatic voltage identification (Tecnica 152) it is green for operation at 230V and orange for operation at 115V. - 4 -...
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Page 5: Illustrations
TECNICA 150-152-170-168GE ILLUSTRATIONS Power board RECTIFIER PRIMARY EMC BRIDGE FILTRE (11) FILTER FLY-BACK CONTROL POWER SUPPLY PRE-CHARGE BOARD (18) CURRENT POTENTIOMETER (25) POWER CHOPPER SUPPLY (17) ALARM (10) SECONDARY FILTER EMC (12) DRIVER INDUCTANCE POWER CHOPPER SECONDARY TRANSFORMER DIODES CURRENT TRANSFORMER - 5 -... -
Page 6: Wiring Diagrams
TECNICA 150-152-170-168GE WIRING DIAGRAMS Wiring general diagram - TECNICA 150 - 170 - 168GE Wiring general diagram TECNICA 152 - 6 -... - Page 7 TECNICA 150-152-170-168GE Wiring diagram power board - power supply / control - 7 -...
- Page 8 TECNICA 150-152-170-168GE Wiring diagram power board - power / driver - 8 -...
- Page 9 TECNICA 150-152-170-168GE Wiring diagram - control board Wiring diagram - change voltage board 115/230V (only for TECNICA) - 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
Probable cause: H) The boards (repaired when necessary) and the wiring should mechanical shock. never be modified without prior authorisation from Telwin. Relay K1 fig. 3 For further information on machine specifications and Probable cause: operation, refer to the Instruction Manual. - Page 12 TECNICA 150-152-170-168GE broken rheophore on one or more capacitor: the 6.0 Electrical measurements with the machine in remainder 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 - 5 sec/Div. µ TW). This is the reference code for requesting a replacement: TIME TOLLERANCES ±20%. Telwin may supply boards that are compatible but with VERIFY THAT different codes. AMPLITUDE ON CH1 Warning: before inserting a new board check it carefully for 320V ±10%;...
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Page 14: Testing The Machine
TECNICA 150-152-170-168GE instructions.- Insert the new IGBT's between the powered and therefore the operator is exposed to the danger dissipator and the spring, taking care not to damage the of electric shock. component during assembly (the spring should be The tests given below are used to verify power source inserted under pressure on the dissipator so as to lock the operation under load. - Page 15 TECNICA 150-152-170-168GE current reading is not 150A ±5%, adjust the current FIGURE E using jumpers JP6, JP7 and JP8 ( fig. 7 switch off the ohmic load. SETTINGS: PROBE CH1 x100 - 100V/Div; FIGURE G PROBE CH2 x10; - 2V/Div; SETTINGS: - 5 sec/Div.
- Page 16 80A (electrode diameter 2.5 mm). Check the dynamic behaviour of the power source. 1.3 Scheduled tests for the TECNICA 152 In this case it makes no difference whether the tests are carried out with a 115V or a 230V power supply:...
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Page 17: Illustrations
TECNICA 150-152-170-168GE ILLUSTRATIONS FIG. 1 SCREWS FASTENING HANDLE SCREWS FASTENING HANDLE CURRENT REGULATION POTENTIOMETER POWER SUPPLY LED SCREWS FASTENING BACK PANEL ALARM LED DINSE SOCKET SCREWS FASTENING TOP COVER SCREWS FASTENING FRONT PANEL FIG. 2A FIG. 2B BUMP BUMP NUTS CONTACTS CONTACTS JUMPER... -
Page 18: Spare Parts List
TECNICA 150-152-170-168GE 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 11 14 25 15 16 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 19 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 20: Repair Sheet
TECNICA 150-152-170-168GE 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 Dirty inside the machine... - Page 21 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...
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