Error Code 200 - Abnormal DC Circuit

Clifton Wilkinson

Modified on: Wed, 17 Oct, 2018 at 9:22 AM

Abnormal external conditions trigger the protection for the DC circuit inside the SUN2000. The possible causes are as follows:

Possible Cause	Suggestions
Cause ID 3: Major The SUN2000 input is disconnected accidentally, or the PV string output power changes sharply because the PV string is shielded from sunlight.	The SUN2000 detects its external working conditions in real time.After the fault is rectified, the SUN2000 automatically recovers. If the alarm persists, contact Huawei technical support.
Cause ID 10: Major The three phases of the power grid are seriously unbalanced, which triggers the protection for the internal control circuit of the SUN2000.	The SUN2000 detects its external working conditions in real time.After the fault is rectified, the SUN2000 automatically recovers. If the alarm persists, contact Huawei technical support.
Cause ID 11: Major The grid voltage changes sharply and the SUN2000 input power fails to discharge in a short time, which increases the internal voltage and triggers overvoltage protection.	The SUN2000 detects its external working conditions in real time.After the fault is rectified, the SUN2000 automatically recovers. If the alarm persists, contact Huawei technical support.
Cause ID 12/15: Major An unrecoverable fault occurs on a circuit inside the SUN2000.	Turn off the AC output switch and DC input switch. Then turn on the AC output switch and DC input switch after 5 minutes. If the fault persists, contact Huawei technical support.