Waiting for DC start conditions > Start cond. not met

What does 3901/3902 mean?

The necessary feed-in conditions for the utility grid have not yet been fulfilled, preventing the inverter from starting operation. This is often related to environmental conditions or initial setup parameters.

• PV array is covered by snow or otherwise shaded, reducing power output.
• Insufficient solar irradiation to meet minimum operating thresholds.
• The voltage limit for starting grid feed-in is set too high (parameter `Critical voltage to start feed-in`).
• PV array is incorrectly rated for the inverter's start-up requirements.

Click steps to track your progress.

1. 1

   Ensure that the PV array is not covered by snow or otherwise shaded.

2. 2

   Wait for higher solar irradiation levels.

3. 3

   If this message is displayed frequently in the morning, increase the voltage limit for starting grid feed-in by changing the parameter `Critical voltage to start feed-in`.

4. 4

   If this message is displayed frequently with medium irradiation, ensure that the PV array is correctly rated for the inverter.