Check the CN2 cable of the replacement drive. If the alarm disappears after replacing the cable, it means that the feedback cable has poor contact and other problems.
If there is still this alarm, it can be judged that there is something wrong with the motor encoder and the encoder can only be replaced. The alarm of KND CNC 12X axis driver is related to motor encoder and connecting wire.
Get the KND machine tool driver manual, make clear the alarm content and meaning corresponding to the alarm number, and take corresponding solutions according to the alarm information.