Cebora PLASMA PROF 55 - Table of Contents

CEBORA S.p.A. 2
CONTENTS
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. 965.............................................................................................4
3 - MAINTENANCE.............................................................................................................................6
3.1 - Periodic inspection, cleaning. ........................................................................................................6
3.2 - Operating sequence........................................................................................................................6
3.2.1 - Power source commands and signals. .........................................................................................6
3.2.2 - Power source operation. ..............................................................................................................7
3.3 - Troubleshooting. ............................................................................................................................8
3.3.1 - The power source does not start, lamp (38) off...........................................................................8
3.3.2 - Power source powered, lamp (38) lit, fan (39) stopped...............................................................9
3.3.3 - The start button produces no effect. ..........................................................................................10
3.3.4 - No gas flows from the torch. .....................................................................................................11
3.3.5 - Gas flows from the torch, the pilot arc does not light (high frequency missing). .....................12
3.3.6 - Gas flows from the torch, the pilot arc does not light (nozzle voltage missing). ......................13
3.3.7 - In open circuit operation, the output voltage is not regular.......................................................14
3.3.8 - Irregular pilot arc starts, unstable pilot arc................................................................................15
3.3.9 - Transfer arc does not take place or is too weak for cutting.......................................................16
3.4 - Alarm signals. ..............................................................................................................................17
3.4.1 - Lamp (G) (45) lit, with fix light = transformer (44) temperature above the limit.....................17
3.4.2 - Lamp (G) (45) flashing (two flashes with one second pause) = start button pressed during
power source start-up.
...............................................................................................................17
3.4.3 - Lamp (G) (45) flashing (three flashes with one second pause) = reed contact (42) closed at
power source start-up.
...............................................................................................................17
3.4.4 - Lamp (L) (45) lit, with fix light = low gas pressure..................................................................18
4 - COMPONENTS LIST....................................................................................................................19
4.1 - Power source art. 965 : see file ESP965.pdf enclosed at the end of the manual..........................19
4.2 - Components table: see file ESP965.pdf enclosed at the end of the manual.................................19
4.3 - List of spare parts.........................................................................................................................19
5 - ELECTRICAL DIAGRAMS..........................................................................................................20
5.1 - Power source art. 965 : see file SCHE965.pdf enclosed at the end of the manual.......................20
5.2 - Control board (6) code 5.602.170. ...............................................................................................20
5.3 - HF-filter board (47) code 5.602.173. ...........................................................................................21
3.302.173 28/07/04