What should I do if my Huawei SUN2000-4.95KTL-JPL1 Inverter has an AFCI Check Failure?
If your Huawei Inverter shows an 'AFCI Check Failure', turn off the AC output switch and DC input switch, and then turn them on again after 5 minutes.
What does Battery Reverse Connection mean on my Huawei Inverter?
A 'Battery Reverse Connection' error on your Huawei Inverter means the positive and negative poles are reversed when the battery is connected to the SUN2000. To fix this: 1. Turn off the AC output switch, DC input switch, and battery switch, and turn on the battery auxiliary power switch. Wait for 5 minutes. 2. Check the cable connection by referring to the SUN2000L Battery and Smart Meter Quick Installation Guide. 3. After ensuring that the battery power cable is correctly connected, turn on the battery auxiliary power switch, battery switch, AC output switch, and DC input switch in sequence.
Why does my Huawei SUN2000-4.95KTL-JPL1 Inverter show Overtemperature?
An 'Overtemperature' error on your Huawei Inverter can occur due to: 1. The SUN2000 being installed in a place with poor ventilation. 2. The ambient temperature exceeding the upper threshold. 3. The SUN2000 not working properly. To resolve this: 1. Check the ventilation and ambient temperature of the SUN2000 installation position. 2. If ventilation is poor or the ambient temperature exceeds the upper threshold, improve ventilation and heat dissipation.
What does Transient AC Overvoltage mean on my Huawei SUN2000-4.95KTL-JPL1 Inverter?
The 'Transient AC Overvoltage' error on your Huawei Inverter means the SUN2000 detects that the phase voltage exceeds the transient AC overvoltage protection threshold. To resolve this: 1. If the voltage at the grid connection point is too high, contact the local power operator. 2. If you have confirmed that the grid connection voltage exceeds the upper threshold and have obtained the consent of the local power operator, modify the overvoltage protection threshold. 3. Check whether the peak grid voltage exceeds the upper threshold.
What does Passive Islanding mean on my Huawei SUN2000-4.95KTL-JPL1?
The 'Passive Islanding' error on your Huawei Inverter indicates that when the power grid experiences an AC power outage, the SUN2000 detects an island grid passively. Check whether the voltage at the grid connection point of the SUN2000 is normal.
What does Internal Fan Abnormal mean on my Huawei Inverter?
If your Huawei Inverter displays 'Internal Fan Abnormal', it means the internal fan is short-circuited, the power supply is insufficient, or the fan is damaged. Turn off the AC output switch and then the DC input switch. Turn them on after 5 minutes and wait for the SUN2000 to connect to the power grid.
What to do if Huawei Inverter shows Grid Undervoltage?
A Grid Undervoltage error on your Huawei Inverter indicates that the grid voltage is below the lower threshold, or the low voltage duration has exceeded the low voltage ride-through (LVRT) value. Follow these steps: 1. If the alarm occurs occasionally, the power grid may be temporarily abnormal. The SUN2000 will automatically recover when the grid returns to normal. 2. If the alarm occurs frequently, check whether the power grid voltage is within the allowed range. If not, contact the local power operator. If it is, modify the grid undervoltage protection threshold via the mobile app, SmartLogger, or network management system (NMS) with the consent of the local power operator. 3. If the alarm persists, check the connection between the AC switch and the output power cable.
What causes a Huawei Inverter to show Grid Overvoltage and how to fix it?
A Grid Overvoltage error on your Huawei Inverter means the grid voltage exceeds the higher threshold, or the high voltage has lasted longer than specified by high voltage ride-through (HVRT). Here's what to do: 1. If the alarm occurs occasionally, the power grid may be temporarily abnormal; the SUN2000 will automatically recover when the grid returns to normal. 2. If the alarm occurs frequently, check if the power grid voltage is within the allowed range. If not, contact the local power operator. If it is within range, modify the grid overvoltage protection threshold using the mobile app, SmartLogger, or NMS with the consent of the local power operator. 3. Check if the peak voltage of the power grid is too high. If the alarm persists and cannot be rectified, contact the power operator.
How to fix a Huawei Inverter with String Reversed error?
If your Huawei Inverter shows a 'String Reversed' error, it means the PV string is reversely connected. 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 adjust the PV string polarity.
What to do if my Huawei SUN2000-4.95KTL-JPL1 Inverter displays a DC Arc Fault?
If your Huawei Inverter displays a DC Arc Fault, it indicates that the PV string power cables are arcing or have poor contact. Check whether the string cables arc or are in poor contact.
General| Model | SUN2000-4.95KTL-JPL1 |
|---|---|
| Type | String Inverter |
| Rated Output Power | 4.95 kW |
| Max. DC Input Voltage | 1100 V |
| Number of MPPTs | 2 |
| Output Frequency | 50 Hz / 60 Hz |
| Max. Efficiency | 98.6% |
| Cooling Method | Natural convection |
| Protection Degree | IP65 |
| Rated Output Voltage | 230 V / 400 V |
| Operating Temperature Range | -25°C ~ +60 °C |
General safety statement, liability disclaimer, and compliance with international standards.
Covers precautions for personal protection during operations, addressing electrical hazards.
Focuses on electrical safety, grounding procedures, and proper cable handling.
Outlines environmental conditions and restrictions for safe and optimal equipment operation.
Covers safety aspects related to mechanical handling, tool usage, and equipment installation.
Details pre-installation checks for outer packing materials and package contents.
Lists the essential tools and instruments required for the installation process.
Specifies requirements for installation location, environment, mounting structure, and angles.
Provides a step-by-step procedure for safely moving the SUN2000 unit.
Covers precautions and steps for installing the inverter unit onto its mounting structure.
Provides critical safety warnings and precautions before making electrical connections to the SUN2000.
Details the necessary steps and considerations for preparing cables before connecting them to the SUN2000.
Guides through the procedure for correctly connecting the protective earth (PE) cable.
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