Overcurrent occurs in the IGBT module of the medium frequency spot welding machine: the transformer has high power and cannot completely match the controller. Please replace it with a more powerful controller or adjust the welding current parameters to a smaller value.
The secondary diode of the welding transformer is short-circuited: the secondary circuit is open, hold the multimeter at the diode level, and touch the two test leads to the upper and lower electrodes respectively, then switch the test leads and repeat the measurement. If there is a straight connection once and no connection the other time, it means it is normal. Both times it is normal. If it is the same, then it is confirmed that the secondary diode is damaged and needs to be replaced.
The IGBT module is damaged: Unplug the drive wire and measure the resistance between GE of the IGBT modules respectively. If the resistance is above 8K ohms, it means it is normal. If the resistance below means it is damaged, replace the corresponding module.
The IGBT module driver board is damaged: Replace the IGBT module driver board. If the main control board is damaged, replace the main control board.
Suzhou Agera Automation Equipment Co., Ltd. is an enterprise engaged in the development of automated assembly, welding, testing equipment and production lines. It is mainly used in home appliance hardware, automobile manufacturing, sheet metal, 3C electronics industries, etc. According to customer needs, we can develop and customize various welding machines, automated welding equipment, assembly and welding production lines, assembly lines, etc., to provide appropriate automated overall solutions for enterprise transformation and upgrading, and help enterprises quickly realize the transformation from traditional production methods to mid-to-high-end production methods. Transformation and upgrading services. If you are interested in our automation equipment and production lines, please contact us:leo@agerawelder.com
Post time: Feb-21-2024
