Huawei SUN2000-4.95KTL-JPL1

Other manuals for Huawei SUN2000-4.95KTL-JPL1

Quick Guide28 pages

Questions and Answers

S
Sean KaiserSep 13, 2025
What does Battery Reverse Connection mean on my Huawei Inverter?
- A
  Aaron BradleySep 13, 2025
  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.
M
melissachenAug 25, 2025
Why is my Huawei SUN2000-4.95KTL-JPL1 Inverter showing High String Input Voltage?
- P
  Peter AcostaAug 25, 2025
  The 'High String Input Voltage' error on your Huawei Inverter indicates that the PV array is not properly configured. Too many PV modules are connected in series, causing the open-circuit voltage to exceed the SUN2000's maximum operating voltage. To fix this, check the serial connection configuration of the PV string and ensure the open-circuit voltage is not greater than the maximum operating voltage of the SUN2000. After correcting the PV array configuration, the alarm should disappear.
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.
A
Anthony BaileySep 23, 2025
What does Short Circuit Between Grid Phase Wire and PE mean on Huawei SUN2000-4.95KTL-JPL1 Inverter?
- J
  Jennifer RhodesSep 23, 2025
  A 'Short Circuit Between Grid Phase Wire and PE' error on your Huawei Inverter means the impedance of the output phase wire to PE is low, or the output phase wire is short-circuited to PE. Check the impedance of the output phase wire to PE, locate the position with low impedance, and rectify the fault.
J
Jeffrey RobinsonSep 13, 2025
What does Active Islanding mean on my Huawei SUN2000-4.95KTL-JPL1?
- R
  Robert MorrisonSep 14, 2025
  The 'Active Islanding' error on your Huawei Inverter indicates that when the power grid experiences an AC power outage, the SUN2000 detects islanding proactively. Check that the grid connection voltage of the SUN2000 is normal.
K
Kristina HermanSep 22, 2025
What does Internal Fan Abnormal mean on my Huawei Inverter?
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  Theresa JohnsonSep 22, 2025
  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.
D
David GarrettSep 6, 2025
What to do if my Huawei SUN2000-4.95KTL-JPL1 Inverter shows Output DC Component Overhigh?
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  Reginald CastroSep 6, 2025
  An 'Output DC Component Overhigh' error on your Huawei Inverter means the DC component of the SUN2000 output current exceeds the specified upper threshold. Here's what to do: 1. The SUN2000 detects its external working conditions in real time and automatically recovers after the fault is rectified.
A
Anthony MartinezSep 7, 2025
What does it mean when my Huawei SUN2000-4.95KTL-JPL1 displays Abnormal Residual Current?
- C
  Chad MillerSep 7, 2025
  An 'Abnormal Residual Current' error on your Huawei Inverter indicates that the insulation impedance of the input side to PE decreases when the SUN2000 is operating. Here's how to address it: 1. If the alarm occurs occasionally, the external circuit may be temporarily abnormal, and the SUN2000 will recover after the fault is rectified. 2. If the alarm occurs frequently or persists, check whether the impedance between the PV string and the ground is too low.
B
Betty NewtonSep 23, 2025
What does Abnormal DC Protection Unit mean on my Huawei Inverter?
- K
  kristin52Sep 23, 2025
  An 'Abnormal DC Protection Unit' error on your Huawei Inverter can be caused by: 1. The fuse not being in position or being blown. 2. The two relays on the breaking board being open-circuited. 3. The contact points of the DC switches being stuck. To resolve this, 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.
T
Tammy ShepardAug 31, 2025
Why does my Huawei SUN2000-4.95KTL-JPL1 Inverter show Overtemperature?
- W
  walkercameronAug 31, 2025
  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.

Summary

Safety Information

Statement

General safety statement, liability disclaimer, and compliance with international standards.

Personal Safety

Covers precautions for personal protection during operations, addressing electrical hazards.

Electrical Safety

Focuses on electrical safety, grounding procedures, and proper cable handling.

Environment Requirements

Outlines environmental conditions and restrictions for safe and optimal equipment operation.

Mechanical Safety

Covers safety aspects related to mechanical handling, tool usage, and equipment installation.

Installation

Checking Before Installation

Details pre-installation checks for outer packing materials and package contents.

Preparing Tools

Lists the essential tools and instruments required for the installation process.

Determining the Installation Position

Specifies requirements for installation location, environment, mounting structure, and angles.

Moving the SUN2000

Provides a step-by-step procedure for safely moving the SUN2000 unit.

Installing the Inverter

Covers precautions and steps for installing the inverter unit onto its mounting structure.

Electrical Connections

Precautions

Provides critical safety warnings and precautions before making electrical connections to the SUN2000.

Cable Preparation

Details the necessary steps and considerations for preparing cables before connecting them to the SUN2000.

Connecting the PE Cable

Guides through the procedure for correctly connecting the protective earth (PE) cable.

Opening the Maintenance Compartment Door

Installing the AC Output Power Cable

Installing DC Input Power Cables

Connecting Battery Cables

Connecting a Communications Cable

Connecting a CT Cable

Encapsulation After Installation

System Commissioning

Checking Before Power-On

System Power-On

Maintenance

Routine Maintenance

Powering Off the System

Troubleshooting

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