Reverse currents detected in the PV array or DC connection polarity reversed

Hva betyr 4003 ?

Reverse currents have been detected in the PV array, or the DC connection polarity is reversed. This is a critical fault that can damage the inverter and PV modules. The inverter will shut down for 30 seconds and wait for acknowledgement.

• Short circuits within PV modules.
• Incorrect module wiring or system design.
• Reversed polarity of DC terminals during connection.
• Malfunction of a PV string.

Klikk på steg for å spore fremgangen.

1. 1

   Check individual PV modules for short circuits.

2. 2

   Verify the module wiring and overall system design for correctness.

3. 3

   Inspect the DC terminals for correct polarity.

4. 4

   Check the functionality of the entire PV string for anomalies.