CEBORA S.p.A.
2
CONTENTS
1
- GENERAL INFORMATION.......................................................................................................................... 4
1.1
- Introduction. ................................................................................................................................................. 4
1.2
- General service policy. ................................................................................................................................. 4
1.3
- Safety information. ....................................................................................................................................... 4
1.4
- Electromagnetic compatibility...................................................................................................................... 4
2
- SYSTEM DESCRIPTION .............................................................................................................................. 5
2.1
- Introduction. ................................................................................................................................................. 5
2.2
- Technical specifications................................................................................................................................ 5
2.3
- Description of SOUND MIG 3840/T Pulse system (art. 287). ..................................................................... 5
2.4
- Description of MIG3840/T Pulse power source. .......................................................................................... 6
2.5
- Description of WF4-P Wire Feeder. ............................................................................................................. 8
2.5.1
- Accessories table........................................................................................................................................ 9
2.6
- Description of GR54 Cooling Unit............................................................................................................... 9
3
- MAINTENANCE.......................................................................................................................................... 10
3.1
- Periodic inspection, cleaning. ..................................................................................................................... 10
3.2
- Welding system fittings and connectors. .................................................................................................... 10
3.3
- Control panel commands and signals. ........................................................................................................ 11
3.4
- Operating sequences. .................................................................................................................................. 12
3.4.1
- Welding system operation........................................................................................................................ 12
3.4.2
- MIG mode................................................................................................................................................ 13
3.4.3
- TIG operation........................................................................................................................................... 14
3.4.4
- MMA mode. ............................................................................................................................................ 15
3.5
- Troubleshooting.......................................................................................................................................... 16
3.5.1
- The power source does not start, control panel off. ................................................................................. 16
3.5.2
- Power source powered, control panel on, fan (512) stopped. .................................................................. 19
3.5.3
- System powered, display and signals do not show the correct values. .................................................... 20
3.5.4
- The start button produces no effect.......................................................................................................... 21
3.5.5
- Some signals from connector for accessories (BB) do not work. ............................................................ 23
3.5.6
- System powered, no gas flows from the torch. ........................................................................................ 24
3.5.7
- System powered, the wire feeder motor does not work. .......................................................................... 25
3.5.8
- In open circuit operation, the output voltage is not regular. .................................................................... 26
3.5.9
- In resistive load operation, the output voltage is not regular. .................................................................. 29
3.5.10
- In MIG or TIG mode, arc difficult to strike, the arc shuts off immediately after striking (stuttering start-
up). .......................................................................................................................................................... 31
3.5.11
- In synergic mode, the welding quality is not satisfactory, the wire speed is not suited to the output
current. .................................................................................................................................................... 31
3.5.12
- In MMA, arc difficult to strike and/or unsatisfactory welding quality. ................................................... 31
3.5.13
- In MIG mode, when the start button is released, the wire sticks to the workpiece (ineffective motor
braking). .................................................................................................................................................. 32
3.5.14
- Cooling unit GR54 does not work correctly. ........................................................................................... 33
3.6
- Kit igbt, code 5.710.511 replace instructions. .............................................................................. 35
3.302.191
15/02/05
