MIG 200P service manual презентация

MIG 200P training manual

Catalogue 1、Introduction of working principle 2、Introduction of main circuit（parts different from MMA） 3、Introduction of control circuit（parts different from MMA） 4、Introduction of panel circuit 5、 Introduction of remote circuit 6、Troubleshooting 7、Appendix

1、Introduction of working principle

2、Introduction of main circuit（parts different from MMA）

3、Introduction of control circuit（parts different from MMA）

DRIVE--Connected with main board to provide drive signal for discrete IGBT. DRIVE--Connected with main board to provide drive signal for discrete IGBT. Pin 1---- +15V；Pin 2~5---- Drive signal；Pin 6---- OC; Pin 7---- GND SOURCE--Connected with main board to provide control board with power source and test signal of tip. Pin 1---- +24V；Pin 2---- GND；Pin 3---- -24V. MB--Connected with panel board to communicate. CR--Connected with crater arc potentiometer, Burn back signal . Pin 1---- GND ；Pin 2---- crater arc；Pin 3---- +5V. GUN--Connected with the torch to provide signal of gun. QF/DY--Connected with the gas switch.

IGBT OT--Connected with the IGBT NTC to provide over-temperature signal for MCU. IGBT OT--Connected with the IGBT NTC to provide over-temperature signal for MCU. WVIN--Connected with the output to sample voltage signal. Pin 1---- cathode of output；Pin 2---- positive pole of output. IFB--Connected with HALL sensor to sample current signal. Pin 1---- +15V；Pin 2---- -15V；Pin 3---- Output of HALL sensor；Pin4---- GND. PWM-- Connected with main board to control Motor speed (pulse). Fans-- Connected with the fan.

4、Introduction of panel circuit

5、Troubleshooting 5、Troubleshooting

A、Presentation of panel Power display

Point B wave :The PWM set point from 6P of U02

Point F wave : U01 SG3524 2P

List of spare part