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A: ETH failure means that the drive board has a short-circuit to ground or the current detection circuit is partially damaged.
-1. First, the inverter restores the factory settings, P00.18=1. Reset the motor parameters P02.01-P02.05.To see whether it will work.
-2. Try to replace the control board 34PIN horn cable or control board.
If the problem is still not resolved, the driver board needs to be replaced.
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