Cebora 337 Manual De Servicio página 42

CEBORA S.p.A.
CONTENTS
GENERAL INFORMATION ........................................................................................................................... 43
1
Introduction ................................................................................................................................................. 43
1.1
General service policy ............................................................................................................................... 43
1.2
Safety information ...................................................................................................................................... 43
1.3
Electromagnetic compatibility .................................................................................................................. 43
1.4
DESCRIPTION OF THE SYSTEM ............................................................................................................... 44
2
Introduction ................................................................................................................................................. 44
2.1
Technical specifications ............................................................................................................................ 44
2.2
Description of power source art. 337 ...................................................................................................... 44
2.3
Filter board (7) 5602555 ............................................................................................................................ 45
2.4
Services board (6) 5602552 ...................................................................................................................... 45
2.5
IGBT board (31) 5602556 .......................................................................................................................... 46
2.6
Diodes board (32) 5602553 ...................................................................................................................... 46
2.7
control board (48) 5602551 ..................................................................................................................... 47
2.8
panel board (57) 5602554 ......................................................................................................................... 48
2.9
MAINTENANCE ............................................................................................................................................. 49
3
Periodic inspection, cleaning ................................................................................................................... 49
3.1
Power source controls and signals. ........................................................................................................ 49
3.2
Power source operation. ........................................................................................................................... 50
3.3
TROUBLESHOOTING .................................................................................................................................. 52
4
The power source does not start, LCD display off .............................................................................. 52
4.1
Power source powered, operator panel on, fan/fans (28) stopped. ................................................... 55
4.2
The START button produces no effect. .................................................................................................. 55
4.3
No gas flows from the torch ..................................................................................................................... 56
4.4
Gas leaks from the torch, pilot arc does not start ................................................................................. 57
4.5
Irregular pilot arc striking, unstable pilot arc .......................................................................................... 57
4.6
ALARM SIGNALS .......................................................................................................................................... 58
5
Err 51: Torch type unknown ...................................................................................................................... 59
5.1
Err 73: Output diodes overtemperature .................................................................................................. 59
5.2
Err 74: IGBT inverter overtemperature .................................................................................................... 59
5.3
Err 78: Low pressure .................................................................................................................................. 60
5.4
Err 50: Torch protection device ................................................................................................................ 60
5.5
Err 67: Mains voltage does not meet specifications ............................................................................. 61
5.6
Err 53: START closed at machine start-up or power source reset ..................................................... 61
5.7
Err Vin 1 ....................................................................................................................................................... 61
5.8
Err Vin 2 ....................................................................................................................................................... 61
5.9
COMPONENTS LIST .................................................................................................................................... 62
6
Drawing. ....................................................................................................................................................... 62
6.1
Components table. .................................................................................................................................... 62
6.2
WIRING DIAGRAMS, TOPOGRAPHICAL DRAWINGS AND CONNECTOR TABLES ........................ 62
7
Power source art. 337.00 .......................................................................................................................... 62
7.1
Power source art. 337.95 .......................................................................................................................... 62
7.2
Filter board (7) code 5,602,555 ................................................................................................................ 63
7.3
Services board (6) code 5,602,552 .......................................................................................................... 65
7.4
IGBT board (7) code 5,602,556 ................................................................................................................ 68
7.5
Diodes board (32) code 5,602,553 .......................................................................................................... 70
7.6
Panel board (57) code 5,602,554 ............................................................................................................. 72
7.7
Control board (48) code 5,602,551.......................................................................................................... 74
7.8
TESTING AN IGBT MODULE ...................................................................................................................... 77
8
Check for shorted IGBT ............................................................................................................................ 77
8.1
Turn on Q1, Q2 ........................................................................................................................................... 77
8.2
Turn off Q1, Q2 ........................................................................................................................................... 77
8.3
TESTING AN DIODE ISOTOP MODULE.................................................................................................... 78
9
Check for shorted diode ........................................................................................................................... 78
9.1
Check for good diode ................................................................................................................................ 78
9.2
3302336-B
42
20/12/2019