Table Of Contents - Cebora 961 Service Manual

CEBORA S.p.A.
1 - GENERAL INFORMATION
1.1 - Introduction.
1.2 - General service policy.
1.3 - Safety information.
1.4 - Electromagnetic compatibility.
2 - SYSTEM DESCRIPTION
2.1 - Introduction.
2.2 - Technical specifications.
2.3 - Description of power source art. 961.
3 - MAINTENANCE
3.1 - Periodic inspection, cleaning.
3.2 - Operating sequence (fig. 3.2.1).
3.2.1 - Power source commands and signals.
3.2.2 - Power source operation.
3.3 - Troubleshooting.
3.3.1 - The power source does not start, lamp (22) off, fan (34) stopped.
3.3.2 - The start button produces no effect.
3.3.3 - No gas flows from the torch.
3.3.4 - Gas flows from the torch, the pilot arc does not light.
3.3.5 - Irregular pilot arc starts, unstable pilot arc.
3.3.6 - Transfer arc does not take place or is too weak for cutting.
3.4 - Alarm signals.
3.4.1 - Lamp (G) (39) lit, with fix light = transformer (38) temperature above the limit.
3.4.2 - Lamp (G) (39) flashing (one flash with one second pause) = arc voltage lower than working
minimum threshold.
3.4.3 - Lamp (G) (39) flashing (two flashes with one second pause) = start button pressed during
power source start-up.
3.4.4 - Lamp (L) (39) lit = low gas pressure.
4 - COMPONENTS LIST
4.1 - Power source art. 961 : see file ESP961.pdf enclosed at the end of the manual.
4.2 - Components table: see file ESP961.pdf enclosed at the end of the manual.
4.3 - List of spare parts.
5 - ELECTRICAL DIAGRAMS
5.1 - Power source art. 961 : see file SCHE961.pdf enclosed at the end of the manual.
5.2 - Waveforms.
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5.2.1 - Power source output voltage, interrupted for missing pilot arc light on (par. 3.3.4).
5.2.2 - Solenoid valve ELT (6) voltage supply, interrupted after 400 msec. approximately for missing
pilot arc light on (par. 3.3.4).
5.3 - Control board (4) code 5.602.146.
3.302.170
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06/07/04