Continuous Internal Overcurrent Shutdown

What does Shut-Down mean?

The Sunny Boy SB50US-80US-IUS094030 has detected a continuous internal overcurrent condition and has initiated a shutdown to protect its components from damage.

• Sustained internal overcurrent within the inverter circuitry.

Click steps to track your progress.

1. 1

   Inspect all AC output wiring and connections, including circuit breakers and disconnects, for damage, insulation integrity, and proper torque at both the inverter and point of interconnection.

2. 2

   Measure AC grid voltage and frequency at the inverter's output terminals to confirm they are stable and within the inverter's specified operating range according to the datasheet.

3. 3

   Access the inverter's user interface or monitoring portal to verify current operating parameters, grid code settings, and review detailed event logs for additional diagnostic information related to the overcurrent shutdown.

4. 4

   Check for any external AC loads or faults downstream from the inverter on the connected grid side that could be drawing excessive current or creating a low impedance path, potentially stressing the inverter's output.