Huawei SUN2000 Series

Other manuals for Huawei SUN2000 Series

Quick Guide23 pages

Quick Installation Guide12 pages

Questions and Answers

K
Kathleen SilvaSep 22, 2025
What does Transient AC Overvoltage mean on Huawei SUN2000?
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  Cory JohnsonSep 22, 2025
  If your Huawei Inverter detects 'Transient AC Overvoltage,' it means the phase voltage exceeds the transient AC overvoltage protection threshold. First, check if the grid connection voltage exceeds the upper threshold and contact the local power operator if it does. If you've confirmed the voltage exceeds the threshold and have the power operator's consent, modify the overvoltage protection threshold. Also, check that the peak grid voltage doesn't exceed the upper threshold.
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Mario MckinneySep 22, 2025
How to troubleshoot Abnormal PV Module Configuration on Huawei SUN2000 Inverter?
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  Christian HodgeSep 22, 2025
  If your Huawei Inverter reports 'Abnormal PV Module Configuration,' it means the PV module configuration doesn't meet requirements, or the PV module output is reversely connected or short-circuited. Check whether the total number of PV modules, the number of PV modules in a string, and the number of PV strings meet requirements, and verify that the PV module output isn't reversely connected.
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Janet VasquezSep 23, 2025
Why is my Huawei SUN2000 showing Output DC Component Overhigh?
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  Mia HahnSep 23, 2025
  If your Huawei Inverter is showing an 'Output DC Component Overhigh' error, it means the DC component in the grid current exceeds the upper threshold. The inverter monitors its external working conditions in real time and will automatically recover after the fault is rectified. If the alarm occurs frequently, contact your dealer or Huawei technical support.
T
Timothy SandovalSep 23, 2025
How do I fix Phase Wire Short-Circuited to PE on Huawei SUN2000 Inverter?
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  Julie CollierSep 23, 2025
  If your Huawei Inverter indicates 'Phase Wire Short-Circuited to PE', it means the impedance of the output phase wire to PE is low, or the output phase wire is short-circuited to PE. To resolve this, check the impedance of the output phase wire to PE, find the location with lower impedance, and fix the fault.
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Chase MccoySep 23, 2025
Why is my Huawei Inverter showing Grid Voltage Imbalance?
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  Jessica RoseSep 23, 2025
  If your Huawei Inverter is showing a 'Grid Voltage Imbalance' error, it indicates that the difference between grid phase voltages exceeds the upper threshold. Here's what you can do: 1. If the alarm occurs accidentally, the power grid may be temporarily abnormal. The inverter will automatically recover once the power grid returns to normal. 2. If the alarm occurs frequently, check whether the power grid voltage is within the acceptable range. If it isn't, contact the local power operator. 3. If the fault persists for a long time, check the connection of the AC output power cables. 4. If the AC output power cables are correctly connected, but the alarm persists and affects the energy yield of the PV plant, contact the local power operator.
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Shawn AndersonSep 23, 2025
What causes Grid Overfrequency on Huawei SUN2000 Inverter?
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  Patrick WilliamsSep 23, 2025
  If your Huawei Inverter displays a 'Grid Overfrequency' alarm, it indicates a power grid exception where the actual grid frequency is higher than the requirement of the local power grid standard. To address this: 1. If the alarm occurs accidentally, the power grid may be temporarily abnormal. The inverter will automatically recover after the power grid returns to normal. 2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If it is not, contact the local power operator. If it is, log in to the mobile phone app, SmartLogger, or NMS to modify the grid underfrequency protection threshold with the consent of the local power operator.
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marycastroSep 23, 2025
Why is my Huawei SUN2000 showing Grid Underfrequency?
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  Jessica JenkinsSep 23, 2025
  If your Huawei Inverter is showing a 'Grid Underfrequency' error, it indicates a power grid exception where the actual grid frequency is lower than the requirement of the local power grid standard. To address this: 1. If the alarm occurs accidentally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes normal. 2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If no, contact the local power operator. If yes, log in to the mobile phone app, SmartLogger, or NMS to modify the grid underfrequency protection threshold with the consent of the local power operator.
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Brian NelsonSep 23, 2025
What does Unstable Grid Frequency mean on Huawei SUN2000 Inverter?
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  Maria BerrySep 23, 2025
  If your Huawei Inverter shows 'Unstable Grid Frequency,' it means the grid frequency change rate doesn't comply with the local power grid standard. First, if the alarm occurs accidentally, the power grid may be temporarily abnormal, and the inverter will recover automatically. If it happens frequently, check if the grid frequency is within the acceptable range and contact the local power operator if it isn't.
I
Isabella FriedmanSep 23, 2025
How to troubleshoot Abnormal Grounding on Huawei Inverter?
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  Rebecca DavisSep 23, 2025
  If your Huawei Inverter reports 'Abnormal Grounding,' it means the neutral wire or ground cable isn't connected, or the PV array is grounded, but the inverter output doesn't connect to an isolation transformer. To fix this, power off the inverter (turn off the AC output switch and DC input switch, and wait for 5 minutes), then: 1. Check that the PE cable for the inverter is connected properly. 2. If the inverter is connected to the TN power grid, check whether the N cable is properly connected and whether the voltage to ground is normal. 3. Check whether the AC output connects to an isolation transformer. If yes, after powering on the inverter, log in to the mobile phone app, SmartLogger, or NMS and disable Grounding inspection.
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autumn80Sep 23, 2025
What causes Cabinet Overtemperature in Huawei SUN2000 Inverter?
- S
  Sharon ThorntonSep 23, 2025
  If your Huawei Inverter is displaying a 'Cabinet Overtemperature' warning, it indicates that the inverter is installed in a poorly ventilated area, the ambient temperature is too high, or the inverter isn't working correctly. To address this: * Check the ventilation and ambient temperature at the inverter's installation location. * If ventilation is poor or the ambient temperature exceeds the upper threshold, improve ventilation and heat dissipation. * If ventilation and ambient temperature both meet requirements, contact your dealer or Huawei technical support.

Huawei SUN2000 Series Specifications

General

Max Efficiency	98.6%
MPPT Efficiency	99.9%
Protection Rating	IP65
Max. DC Voltage	1100 V
Rated AC Frequency	50 Hz / 60 Hz
Rated Power	3kW - 10kW
Operating Temperature Range	-25 °C ~ +60 °C
Communication	RS485
Rated AC Power	3kW - 10kW
Power Factor Adjustment Range	0.8 leading to 0.8 lagging
Total Harmonic Distortion (THD)	≤ 3%
Protection	DC reverse polarity
Cooling	Natural convection
DC Connection	MC4