The frequency converter must ensure the normal use of various functions before leaving the factory, then how does the frequency converter manufacturer test the function of the frequency converter?

After the inverter is assembled, it should first be energized to test whether the three-phase voltage is balanced and whether the inverter relay is drawn. Restore parameters to test whether the function of a terminal is normal and whether the communication is normal.

First, test whether the control panel keys work properly

Second, whether the positive and negative terminals are normal

Third, whether the simulation amount is normal

Fourth, whether the multi-speed terminal is normal

Fifth, whether the communication is normal

Sixth, the multifunctional relay output is normal

In order to ensure the normal function of each inverter before the inverter factory, the manufacturer must carry out the above functional tests.

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