Excessive DC component (Code 011)
Fault name | Excessive DC component (fault code: 011) |
Fault type | Failure shutdown |
Fault condition | The DC component of any phase exceeds the set DC component protection value. |
Steps and method of troubleshooting | 1. If various faults of excessive DC component occur in the same matrix, the grid is faulty. 2. Check whether the connections of the control panel and power board are secure. 3. If the connection is normal, it is likely that the sampling circuit on the power board is abnormal. It can be confirmed by replacing the power board. 4. If the fault is not solved, the inverter needs to be replaced. |
Excessive leakage current (Code 012)
Fault name | Excessive leakage current (fault code: 012) |
Fault type | Failure shutdown |
Fault condition | The instantaneous change is 30mA and lasts for 240ms; The instantaneous change is 60mA and lasts for 50ms; The instantaneous change is 150mA and lasts for 10ms; The instantaneous change is 220mA and lasts for 50ms |
Steps and method of troubleshooting | 1. Check whether the PV panel is in rainy and humid weather or in an environment of insufficient sunlight in the morning and at night. If the weather is rainy and humid, the fault can be ignored. 2. Please use a multimeter and an insulation resistance meter to check whether the insulation is abnormal on AC and DC sides. |
Remarks | 1. If the insulation values are in the allowed range, it is recommended to replace the inverter. |
Grid abnormal (Code 013)
Fault name | Grid abnormal (fault code: 013) |
Fault type | Failure shutdown |
Fault condition | Before the inverter is connected to the grid, the measured voltage and frequency values of the grid are not within the set ranges. |
Steps and method of troubleshooting | 1. Check whether the AC wiring is secure, including the AC distribution cabinet wiring. 2. Check whether the country selection is correct (the grid frequency is 50Hz or 60Hz). 3. Check whether the set voltage and frequency of the detection function are correct before grid connection. 4. Measure the AC voltage of the AC output and compare the measured value with the displayed voltage. If the measured voltage is abnormal, please check whether the parameter is set within the detection range before grid connection; If the measured voltage is normal and the displayed voltage is wrong, it can be inferred that the sampling is abnormal. It is recommended to replace the inverter. |
10-minute grid overvoltage (Code 014)
Fault name | 10-minute overvoltage of the grid (fault code: 014) |
Fault type | Failure shutdown |
Fault condition | The 10-minutes overvoltage protection function is enabled, and the grid voltage is higher than the set value of overvoltage protection |
Steps and method of troubleshooting | 1. Check whether the set value of 10-minute overvoltage protection is correct. 2. If the local standard does not require the 10-minute overvoltage protection function to be enabled, disable the function. |
DC-busbar overvoltage (Code 019/020)
Fault name | Overvoltage of DC busbar (fault code: 019/020) |
Fault type | Failure shutdown |
Fault condition | 1. Fault code 019: The instantaneous busbar voltage exceeds 460V. 2. Fault code 020: The instantaneous busbar voltage exceeds 460V. 3. Troubleshooting: The busbar voltage is lower than 450V and lasts for 160s. |
Steps and method of troubleshooting | 1. Check whether the active power is limited and the connected components are over the power limit. 2. If the equipment has obvious failure, please replace the inverter. |
For further information, please download the user manual here.
This manual is intended for professional technicians who are responsible for installation, operation, maintenance and troubleshooting of inverters, and users who need to check inverter parameters. The inverter must only be installed by professional technicians.
The professional technician is required to meet the following requirements:
Know electronic, electrical wiring and mechanical expertise, and be familiar with electrical and mechanical schematics.
Have received professional training related to the installation, commissioning and troubleshooting of electrical equipment.
Be able to quickly respond to hazards or emergencies that occur during installation, commissioning and troubleshooting.
Be familiar with local standards and relevant safety regulations of electrical systems.
Read this manual thoroughly and understand the safety instructions related to operations.