Self-diagnosis > Input B defective

¿Qué significa 6901 ?

The inverter's self-diagnosis has detected a polarity error on input B. This means a PV string connected to input B has incorrect polarity, which can prevent proper operation and potentially damage the inverter.

• Incorrect polarity of a PV string connected to input B.

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1. 1

   Check whether a string is connected to input B and verify its polarity.