Table Of Contents; Contents - Cebora Power Tig 1540 DC-HF Service Manual

CEBORA S.p.A.
1 - GENERAL INFORMATION...........................................................................................................3
1.1 - Introduction. ...................................................................................................................................3
1.2 - General service policy....................................................................................................................3
1.3 - Safety information..........................................................................................................................3
1.4 - Electromagnetic compatibility. ......................................................................................................3
2 - SYSTEM DESCRIPTION................................................................................................................4
2.1 - Introduction. ...................................................................................................................................4
2.2 - Technical specifications. ................................................................................................................4
2.3 - Description of power source art. 271. ............................................................................................4
3 - MAINTENANCE .............................................................................................................................5
3.1 - Periodic inspection, cleaning. ........................................................................................................5
3.2 - Sequence of operations. .................................................................................................................5
3.2.1 - Power source commands and signals. .........................................................................................5
3.2.2 - Starting the power source. ...........................................................................................................6
3.2.3 - TIG operation. .............................................................................................................................6
3.2.4 - MMA operation. ..........................................................................................................................7
3.3 - Troubleshooting. ............................................................................................................................8
3.3.1 - The power source does not start, control panel off......................................................................8
3.3.2 - Power source powered, fan (16) stopped.....................................................................................9
3.3.3 - Power source powered, display and signals does not indicate the correct values. ......................9
3.3.4 - In TIG, the start button produces no effect................................................................................11
3.3.5 - In TIG, no gas flows from the torch. .........................................................................................11
3.3.6 - In TIG, gas flows from the torch, the arc does not start, high frequency missing.....................12
3.3.7 - In open circuit operation, the output voltage is not regular. ......................................................13
3.3.8 - In resistive load operation, the output voltage is not regular.....................................................14
3.3.9 - In TIG, arc unstable, welding irregular. ....................................................................................15
3.4 - Error codes. ..................................................................................................................................15
3.4.1 - Yellow led (G) lit = temperature above limits...........................................................................15
3.4.2 - Yellow led (G) lit at the power source start-up = supply voltage above limits. ........................15
3.4.3 - Yellow led (G) lit + led (F) flashing = "Vs" voltage above limit..............................................15
3.4.4 - Yellow led (G) lit + led (E) flashing = "Vs" voltage under limit. .............................................15
4 - COMPONENTS LIST....................................................................................................................16
4.1 - Power source art. 271: see file ESP271.pdf enclosed at the end of the manual. ..........................16
4.2 - Components table: see file ESP271.pdf enclosed at the end of the manual.................................16
4.3 - Spare parts list. .............................................................................................................................16
5 - ELECTRICAL DIAGRAMS..........................................................................................................16
5.1 - Power source art. 271: see file SCHE271.pdf enclosed at the end of the manual........................16
5.2 - Power board (29) code 5.602.182/D. ...........................................................................................16
5.3 - Panel board (26) code 5.602.183..................................................................................................18
3.302.212
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12/01/06