What to do if Huawei Audio & Video Accessories show DC Arc Fault?
If your Huawei Audio & Video Accessories indicates a DC Arc Fault, it's likely due to arcing or poor contact in the PV string power cables. You should check the string cables for signs of arcing or poor connections.
How to fix DC Arc Fault on Huawei Inverter?
If your Huawei Inverter is showing a DC Arc Fault, it means the PV string power cables are arcing or have poor contact. You should check whether the string cables are arcing or are in poor contact.
What to do if Huawei Inverter says String Reversed?
If you see a 'String Reversed' error on your Huawei Inverter, it means a PV string is connected with reversed polarity. Check if the PV string is reversely connected to the SUN2000. If it is, wait until the PV string current decreases below 0.5 A, set the DC switch to OFF, and correct the PV string polarity.
How to fix Low Insulation Resistance on Huawei Inverter?
A 'Low Insulation Resistance' error on your Huawei Inverter indicates a short circuit between the PV array and the ground, or damp ambient air causing poor insulation. Here's what you should do: 1. Check the output impedance of the PV array to ground. Rectify any short circuits or insulation issues. 2. Ensure the PE cable of the SUN2000 is correctly connected. 3. If the impedance is lower than the specified protection threshold in rainy and cloudy days, set Insulation resistance protection using the mobile app, SmartLogger, or NMS.
What to do if Huawei SUN2000-2KTL-L1 show String Reversed?
If your Huawei Audio & Video Accessories displays a 'String Reversed' error, it means the PV string is connected with reversed polarity. To fix this, check if the PV string is reversely connected to the SUN2000. If it is, wait until the PV string current decreases below 0.5 A, set the DC switch to OFF, and then correct the PV string polarity.
What to do if Huawei SUN2000-2KTL-L1 Audio & Video Accessories show Abnormal Residual Current?
If your Huawei Audio & Video Accessories is showing an abnormal residual current, it indicates that the insulation impedance on the input side to PE is decreasing. If the alarm occurs occasionally, the external circuit may be temporarily abnormal, and the SUN2000 will automatically recover after the fault is rectified. If the alarm occurs frequently or persists, check whether the impedance between the PV string and the ground is too low.
How to fix Abnormal PV Module Configuration on Huawei Inverter?
If your Huawei Inverter reports 'Abnormal PV Module Configuration,' it indicates that the PV module configuration doesn't meet the requirements, or the PV module output is reversely connected or short-circuited. Check if the total number of PV modules, the number of PV modules in a string, and the number of PV strings meet the requirements and whether the PV module output is reversely connected.
What to do if Huawei Inverter shows AFCI Check Failure?
If your Huawei Inverter displays 'AFCI Check Failure', turn off the AC output switch and DC input switch, and then turn them on after 5 minutes. If the fault persists, contact your dealer or Huawei technical support.
Why is my Huawei Inverter showing High String Input Voltage?
A 'High String Input Voltage' error on your Huawei Inverter means the PV array isn't configured correctly. Too many PV modules are in series, causing the open-circuit voltage to exceed the SUN2000's maximum operating voltage. Check the serial connection configuration of the PV string and ensure the PV string open-circuit voltage doesn't exceed the SUN2000's maximum operating voltage. The alarm should disappear after correcting the PV array configuration.
What causes Unstable Grid Frequency on Huawei Inverter?
If your Huawei Inverter shows an unstable grid frequency, it means the grid frequency change rate does not comply with the local power grid standard. If the alarm occurs occasionally, the power grid may be abnormal temporarily and the SUN2000 automatically recovers after detecting that the power grid becomes normal. If the alarm occurs frequently, check whether the power grid frequency is within the allowed range and contact the local power operator.
General| Nominal AC grid frequency | 50 Hz / 60 Hz |
|---|---|
| Max. input voltage | 600 V |
| Cooling | Natural convection |
| Protection degree | IP65 |
| Operating temperature range | -25°C to +60°C |
Outlines fundamental safety instructions, personnel, electrical, and environmental requirements.
Guidelines for selecting a location and mounting the SUN2000 (wall/support).
Guides for installing Smart Dongles, WLAN antennas, AC/DC power, and battery cables.
Checklist of items to verify before powering on the system.
Step-by-step guide for powering on the SUN2000 and its components.
Using the FusionSolar app for commissioning, parameters, energy, and battery control.
Lists common alarms, their causes, and troubleshooting steps.
Steps to identify and locate insulation resistance faults in the PV string.
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