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Question:

How does MM430 frequency converter always report F003 fault?

Check the fault information is the power supply voltage instability, but other inverters are running well, what is the matter? Will there be any other parameters are not set correctly, thank you!

Answer:

To solve the problem, then check the original power of the line is loose, the power cables are quickly burnt, after fastening normal, thank you enthusiastic support, thank you!
Ha ha, we have a problem, always complicate the problem, always used to find problems from the frequency converter, but did not think the problem is in the most basic place......
This example is obvious, due to undervoltage, to find the problem of power, the first to exclude external problems, from the inverter inside to find the reasons.

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