DC overvoltage > Disconnect generator

What does 3401/3402/3407 mean?

An overvoltage condition has occurred at the DC input, which poses a risk of destroying the inverter. This critical message is also signaled by rapid flashing of the LEDs, indicating an immediate need for intervention.

• DC voltage exceeding the maximum input voltage of the inverter.
• PV array has been incorrectly rated for the inverter.

Click steps to track your progress.

1. 1

   Disconnect the inverter from all voltage sources immediately (refer to the inverter installation manual for the exact procedure).

2. 2

   Check whether the DC voltage is below the maximum input voltage of the inverter.

3. 3

   If the DC voltage is below the maximum input voltage of the inverter, reconnect the terminal block with the connected DC conductors to the inverter.

4. 4

   If the DC voltage exceeds the maximum input voltage of the inverter, ensure that the PV array has been correctly rated or contact the installer of the PV array.

5. 5

   If this message is repeated frequently, contact Service.