Huawei SUN2000-4.95KTL-JPL1 User Manual (English)

Other manuals for Huawei SUN2000-4.95KTL-JPL1

Questions and Answers:

A
amberkingAug 30, 2025
How to troubleshoot a Huawei SUN2000-4.95KTL-JPL1 Inverter with Low Insulation Resistance?
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  Travis JenkinsAug 30, 2025
  A 'Low Insulation Resistance' error on your Huawei Inverter can be caused by: 1. A short circuit between the PV array and the ground. 2. Damp ambient air around the PV array, leading to poor insulation. To resolve this: 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 on rainy or cloudy days, set Insulation resistance protection using the mobile app, SmartLogger, or NMS.
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Jenna PerezAug 29, 2025
What causes a Huawei SUN2000-4.95KTL-JPL1 to display Grid Voltage Imbalance?
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  Jose JohnsonAug 29, 2025
  A Grid Voltage Imbalance error on your Huawei Inverter means the difference between grid phase voltages exceeds the upper threshold. Here’s how to address it: 1. If the alarm occurs occasionally, the power grid may be temporarily abnormal, and the SUN2000 will automatically recover. 2. If the alarm persists, check whether the power grid voltage is within the acceptable range. If not, contact the local power operator. 3. If the alarm lasts for a long time, check the AC output power cable connection. 4. If the AC output power cable is correctly connected, yet the alarm persists and affects the energy yield of the PV plant, contact the local power operator.
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Leslie BuckAug 28, 2025
Why is my Huawei SUN2000-4.95KTL-JPL1 showing String Current Backfeed?
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  Matthew SimpsonAug 28, 2025
  The 'String Current Backfeed' error on your Huawei Inverter is caused by an insufficient number of PV modules connected in series to the PV string, resulting in an end voltage lower than other strings. To resolve this: 1. Check if the number of PV modules connected in series to this PV string is less than the number connected in series to other PV strings in parallel. If so, wait until the PV string current drops below 0.5 A, set the DC switch to OFF, and adjust the number of PV modules in the PV string. 2. Check if the PV string is shaded. 3. Check if the open-circuit voltage of the PV string is normal.
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david16Aug 27, 2025
What to do if Huawei Inverter shows Grid Undervoltage?
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  Melissa AbbottAug 28, 2025
  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.
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Jennifer SanchezAug 27, 2025
What causes a Huawei Inverter to show Grid Overvoltage and how to fix it?
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  Susan ValenciaAug 27, 2025
  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.
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Shane WilliamsAug 26, 2025
How to fix a Huawei Inverter with String Reversed error?
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  Jason TurnerAug 26, 2025
  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.
S
Sarah YoungAug 25, 2025
What to do if my Huawei SUN2000-4.95KTL-JPL1 Inverter displays a DC Arc Fault?
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  jessica33Aug 26, 2025
  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.
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Marc PierceAug 23, 2025
What to do if my Huawei Inverter shows Grid Failure?
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  Ana GonzalezAug 23, 2025
  If your Huawei Inverter displays a Grid Failure message, it means the power grid has experienced an outage. First, check the AC voltage. Then, verify whether the AC circuit is disconnected or if the AC circuit breaker is turned OFF.
A
Anne GarciaSep 15, 2025
What does Transient AC Overvoltage mean on my Huawei SUN2000-4.95KTL-JPL1 Inverter?

Huawei SUN2000-4.95KTL-JPL1 Specifications

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