How to solve the output short circuit of the Automatic Construction Mesh Welding Machine frequency converter?

How to solve the output short circuit of the Automatic Construction Mesh Welding Machine frequency converter?

1. After removing the motor connection wire, power on and test again.

2. After confirming that the Automatic Construction Mesh Welding Machine frequency converter itself is not faulty, check the insulation issues of the motor cables and motor windings.

3. After confirming everything, change the parameters and take a look.