Содержание
- 2. Catalogue 1、Introduction of working principle 2、Introduction of main circuit(parts different from MMA) 3、Introduction of control circuit(parts
- 3. 1、Introduction of working principle
- 4. Working principle
- 5. System chart SOFT START
- 9. 2、Introduction of main circuit(parts different from MMA)
- 11. View of main board
- 12. Photo of main board
- 13. Photo of main PCB AC rectifier Motor driver circuit
- 14. 3、Introduction of control circuit(parts different from MMA)
- 17. WVIN IGBT OT Gun QF/DY Drive Power CR NTCS Funs IFB PWM MB Imax Imin W2
- 18. DRIVE--Connected with main board to provide drive signal for discrete IGBT. Pin 1---- +15V;Pin 2~5---- Drive
- 19. IGBT OT--Connected with the IGBT NTC to provide over-temperature signal for MCU. WVIN--Connected with the output
- 20. Imax—used to adjust maximum welding current (MMA). Imin—used to adjust minimum welding current (MMA). A—used to
- 21. 4、Introduction of panel circuit
- 22. Electrical drawing of panel board
- 23. View of panel board
- 24. Photo of panel board
- 25. 5、Troubleshooting Series A: Troubles about panel display Series B: Troubles about power system
- 26. A、Presentation of panel Power display Over-temperature or Over-current alarm Potentiometer Weld mode display
- 27. Motor drive circuit In Main PCB WD5--Max speed adjust WD2--Min speed adjust Between the two Pins,
- 28. Test point wave Point A wave :The PWM wave from digital control PCB
- 29. Point B wave :The PWM set point from 6P of U02 Point C wave :The drive
- 30. Point F wave : U01 SG3524 2P Point G wave :U01 SG3524 3P
- 32. List of spare part
- 34. Скачать презентацию