变频调速器维修部分的组成是什么？从维修变频器的经验来看，与强电相关的器件，大功率器件，What is the composition of the maintenance part of the frequency converter? Judging from the experience of repairing the inverter, the components related to high-voltage, high-power components,

The power supply part and the corresponding drive part circuit are damaged frequently. Of course, various faults will appear during the maintenance process.

The performance is related to its corresponding electronic circuit. The repair process of the idea equipment is to find the corresponding fault point.

The repair process includes the following aspects:

Step 1: Ask the user about the fault phenomenon of the inverter, including changes in the external environment before and after the inverter fault occurs.

Examples include: abnormal power supply fluctuations, load changes.

Step 2: Analyze the cause of the failure according to the description of the user's failure.

Step 3: Open the equipment to be repaired, confirm the damaged program, and analyze the possibility of repair and recovery.

Step 4: According to the working position of the damaged device, analyze the working principle of the circuit by reading the circuit to find out the reason for the damaged device
, And some related electronic circuits.

Step 5: Look for relevant components for replacement.

Step 6: After confirming that it may cause the fault and all the reasons are eliminated, power on to realize it. When doing this step,

It is generally required that all external conditions are met, and will not cause further expansion of the failure.

Step 7: When the equipment is working normally, you can proceed to the next program, system test

Inverter manufacturer