Huawei SUN2000 Series

Other manuals for Huawei SUN2000 Series

Quick Guide23 pages

Quick Installation Guide12 pages

Questions and Answers

T
Tamara CunninghamSep 12, 2025
What does 'Grid voltage imbalance' mean on my Huawei SUN2000 Inverter?
- B
  Benjamin RobinsonSep 12, 2025
  A 'Grid voltage imbalance' alarm on your Huawei Inverter signifies that the difference between power grid phase voltages exceeds the upper threshold. If this alarm occurs occasionally, it may indicate a temporary abnormality in the power grid, and the inverter should recover automatically once the grid returns to normal. However, if the alarm persists, you should first check whether the power grid voltage is within the acceptable range. If it's not, contact the local power operator for assistance. If the voltage is within the acceptable range but the alarm continues for an extended period, inspect the AC output power cable connection. If the cable is correctly connected, yet the alarm persists and impacts the energy yield of the PV plant, you should also contact the local power operator.
L
Lynn MartinezSep 12, 2025
What to do if Huawei Inverter displays 'AFCI self-check failure'?
- B
  brooksrandallSep 12, 2025
  To address an 'AFCI self-check failure' on your Huawei Inverter, turn off the AC output switch and DC input switch, and then turn them on again after 5 minutes. If the alarm persists, contact Huawei technical support.
S
Stephen SmithSep 12, 2025
What does 'Unstable grid frequency' mean on a Huawei SUN2000 Inverter?
- S
  Sara WebbSep 12, 2025
  An 'Unstable grid frequency' alarm on your Huawei Inverter indicates a power grid exception. The actual change rate of the power grid frequency does not meet the requirements for the local power grid code. If the alarm occurs occasionally, the power grid may be temporarily abnormal, and the inverter will automatically recover after detecting that the power grid becomes normal. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator.
E
evansdonaldSep 12, 2025
What does 'Output overcurrent' mean on my Huawei SUN2000?
- A
  Alisha ParksSep 12, 2025
  An 'Output overcurrent' alarm on your Huawei Inverter indicates that the power grid voltage has dropped dramatically or the power grid is short-circuited. As a result, the inverter's transient output current exceeds the upper threshold, triggering protection. The inverter monitors external operating conditions in real time and automatically recovers after the fault is rectified. If the alarm persists and affects the energy yield of the PV plant, check whether the output is short-circuited. If the fault cannot be rectified, contact your dealer or Huawei technical support.
J
jonathan74Sep 12, 2025
What does it mean if my Huawei Inverter shows a 'Device fault'?
- R
  Rebecca ButlerSep 12, 2025
  If your Huawei Inverter displays a 'Device fault', it indicates an unrecoverable fault has occurred within the inverter's internal circuitry. To attempt a resolution, turn off the AC output switch and DC input switch, wait 5 minutes, and then turn them back on. If the alarm persists, contact your dealer or Huawei technical support.
K
kylejohnsonSep 12, 2025
What to do if my Huawei SUN2000 shows 'Cabinet overtemperature'?
- J
  jamesperrySep 12, 2025
  If your Huawei Inverter displays a 'Cabinet overtemperature' alarm, it could be due to: ? The inverter being installed in a place with poor ventilation. ? The ambient temperature exceeding the upper threshold. ? The inverter not operating properly. Check the ventilation and ambient temperature at the inverter installation position. If the ventilation is poor or the ambient temperature exceeds the upper threshold, improve the ventilation and heat dissipation. If both the ventilation and ambient temperature meet requirements yet the alarm persists, contact your dealer or Huawei technical support.
D
Donald CarrollSep 12, 2025
What does 'Output DC component overhigh' mean on Huawei Inverter?
- S
  Susan ReevesSep 12, 2025
  An 'Output DC component overhigh' alarm on your Huawei Inverter means the DC component of the inverter output current exceeds the upper threshold. The inverter monitors its external operating conditions in real time and automatically recovers after the fault is rectified. If the alarm persists and affects the energy yield of the PV plant, contact your dealer or Huawei technical support.
W
Wayne PotterSep 12, 2025
What does 'Abnormal residual current' mean on Huawei SUN2000 Inverter?
- S
  Steven GarciaSep 12, 2025
  An 'Abnormal residual current' alarm on your Huawei Inverter indicates that the insulation impedance of the input side to PE decreases when the inverter is operating. If the alarm occurs accidentally, the external power cable may be abnormal temporarily, and the inverter automatically recovers after the fault is rectified. If the alarm persists or lasts a long time, check whether the impedance between the PV string and ground is too low.
M
Michelle BarnesSep 13, 2025
What to do if Huawei SUN2000 Inverter shows 'Upgrade failed or version mismatch'?
- J
  Jessica RamseySep 13, 2025
  If your Huawei Inverter displays 'Upgrade failed or version mismatch', try performing the upgrade again. If the upgrade fails several times, contact your dealer or Huawei technical support.
S
Steven StephensonSep 13, 2025
What to do if my Huawei SUN2000 is showing 'Faulty power collector'?
- E
  Erika KennedySep 13, 2025
  If your Huawei Inverter displays 'Faulty power collector', check the following: ? Is the configured power meter model the same as the actual model? ? Are the communications parameters of the power meter the same as the RS485 configurations of the inverter? ? Is the power meter powered on, and is the RS485 communications cable connected?

Summary

Safety Information

General Safety Precautions

General safety statements and precautions for equipment operation.

Personnel Safety Requirements

Outlines qualifications and training required for personnel.

Electrical Safety Guidelines

Grounding requirements and general electrical safety precautions.

Installation Guide

Installation Tools and Equipment

Lists tools and PPE needed for installation.

Determining Installation Position

Guidelines for selecting the optimal installation location.

Mounting Bracket Installation

Process of installing the mounting bracket for the inverter.

Installing the Solar Inverter

Step-by-step guide to safely install the solar inverter.

Electrical Connections

Connection Safety Precautions

Essential safety precautions before making electrical connections.

Connecting DC Input Power Cables

Procedure for connecting DC input power cables.

Connecting AC Output Power Cable

Procedure for connecting the AC output power cable.

Commissioning and Operation

Pre-Power-on Checks

Acceptance criteria to verify before powering on the inverter.

Powering On the SUN2000

Procedure and precautions for powering on the inverter.

SUN2000 App Operations

Using the SUN2000 mobile app for inverter management.

Maintenance and Troubleshooting

Shutdown and Power-Off Procedures

Procedures for safely shutting down and powering off the inverter.

Troubleshooting Common Alarms

Common alarms, causes, and troubleshooting measures.

Fan Replacement Guide

Instructions for replacing a faulty fan unit.

Technical Specifications

Input Electrical Specifications

Lists input voltage, current, and MPPT specifications.

Output Electrical Specifications

Lists output power, voltage, current, and frequency.

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