Huawei SUN2000-30KTL-M3 User Manual

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-

M3

User Manual

Issue 18

Date 2024-03-10

HUAWEI TECHNOLOGIES CO., LTD.

Table of Contents

About this Document3
- Table of Contents8
1 Safety Information11
- Personal Safety12
- Electrical Safety14
- Environment Requirements17
- Mechanical Safety18
2 Overview23
- Product Introduction23
- Appearance26
- Label Description27
- Working Principles29
- Circuit Diagram29
- Working Modes30
3 Inverter Storage32
4 Installation34
- Checking before Installation34
- Tools35
- Determining the Installation Position36
- Moving the Inverter41
- Installing the Mounting Bracket41
- Support Mounting42
- Wall Mounting43
- Installing the Inverter44
5 Electrical Connections47
- Precautions47
- Preparing Cables48
- Connecting the PE Cable51
- Connecting an AC Output Power Cable53
- Connecting DC Input Power Cables58
- Cable Connection Description58
- Connecting Cables to Amphenol Helios H4 Terminals60
- Connecting Cables to Staubli MC4 Terminals61
- Optional) Installing the Smart Dongle63
- Connecting Signal Cables65
- Communication Modes68
- Optional) Connecting the RS485 Communications Cable to the SUN200070
- Optional) Connecting the RS485 Communications Cable to the Power Meter71
- Optional) Connecting the Power Grid Scheduling Signal Cable72
- Optional) Connecting the Rapid Shutdown Signal Cable73
6 Commissioning74
- Checking before Power-On74
- System Power-On75
7 Human-Machine Interaction77
- Scenario in Which Sun2000S Are Connected to the Fusionsolar Smart PV Management System78
- Optional) Registering an Installer Account78
- Creating a PV Plant and a User80
- Smartlogger Networking81
- Scenario in Which Inverters Connect to Other Management Systems81
- Energy Control81
- Grid-Tied Point Control81
- Setting Feed-In at Limited Current85
- Connecting the App to the Inverter or Smart Dongle86
- Scenario Where the App Connects to the Smartlogger87
- Apparent Power Control on the Inverter Output Side88
8 Maintenance90
- System Power-Off90
- Routine Maintenance91
- Alarm Reference92
9 Handling the Inverter93
- Removing the SUN200093
- Packing the SUN200093
- Disposing of the SUN200093
10 Technical Specifications94
A Grid Codes105
B Device Commissioning121
C Built-In PID Recovery124
D Rapid Shutdown125
E NS Protection126
F Resetting a Password127
G Setting Dry Contact Scheduling Parameters128
H Afci129
I PV String Access Detection131
J Smart I-V Curve Diagnosis134
K Locating Insulation Resistance Faults135
L Contact Information139
M Digital Power Customer Service141
N Acronyms and Abbreviations142

Other manuals for Huawei SUN2000-30KTL-M3

Quick Guide20 pages

Questions and Answers:

J
John ThomasAug 31, 2025
How to troubleshoot 'Abnormal grounding' on Huawei Inverter?
- T
  Thomas BeanAug 31, 2025
  If you're experiencing 'Abnormal grounding' with your Huawei Inverter, it could be due to: ? The neutral wire or PE cable of the inverter not being connected. ? The output mode set for the inverter being inconsistent with the cable connection mode. To resolve this, power off the inverter (turn off the AC output switch and DC input switch, and wait for a period of time). Then: ? Check whether the PE cable for the inverter is connected properly. ? If the inverter is connected to a TN power grid, check whether the neutral wire is properly connected and whether the voltage of the neutral wire to ground is normal. ? After powering the inverter back on, check whether the output mode set for the inverter is consistent with the output cable connection mode.
D
Daniel RobersonAug 29, 2025
What causes 'String current backfeed' on a Huawei SUN2000-30KTL-M3 Inverter?
- S
  Steven DuncanAug 30, 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 a terminal voltage lower than that of other strings. To fix this: 1. Check if the number of PV modules connected in series is less than that of other PV strings. If so, wait until the PV string current drops below 0.5 A, turn off all DC switches, and adjust the number of PV modules in the PV string. 2. Check whether the open-circuit voltage of the PV string is abnormal. 3. Check whether the PV string is shaded.
R
ryanvazquezAug 28, 2025
Why is my Huawei Inverter showing 'Grid undervoltage'?
- D
  Dylan WarnerAug 28, 2025
  A 'Grid undervoltage' alarm on your Huawei Inverter means the power grid voltage is below the lower threshold, or the low-voltage duration has exceeded the value specified by LVRT. If the alarm occurs occasionally, the power grid may be temporarily abnormal, and the inverter should recover automatically. If it persists, verify that the power grid voltage is within the acceptable range and contact your local power operator if it's not. If the voltage is within range, you might need to modify the grid undervoltage protection threshold using the app, SmartLogger, or NMS, but only with the consent of the local power operator. Finally, check the AC circuit breaker and AC output power cable if the alarm continues.
J
jeremiah10Aug 27, 2025
Why does my Huawei Inverter show 'Grid overvoltage'?
- P
  parkjesseAug 27, 2025
  A 'Grid overvoltage' alarm on your Huawei Inverter indicates that the power grid voltage exceeds the upper threshold, or the high voltage duration has exceeded the value specified by HVRT. If the alarm is occasional, the power grid may be temporarily abnormal, and the inverter should recover automatically. If the alarm persists, check if the power grid frequency is within the acceptable range, and contact the local power operator if it is not. If the frequency is normal, consider modifying the grid overfrequency protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator. Also, check whether the peak voltage of the power grid is too high, and if the alarm persists long-term, contact the local power operator.
A
Alexander LeeAug 27, 2025
What causes 'String reverse connection' in Huawei SUN2000-30KTL-M3 and how to fix it?
- P
  Pamela SalasAug 27, 2025
  The 'String reverse connection' error in your Huawei Inverter means the PV string polarity is reversed. To resolve this, wait until night when solar irradiance decreases and the PV string current drops below 0.5 A. Then, turn off both DC switches and correct the PV string connection.
C
Charles LeblancAug 25, 2025
What to do if my Huawei SUN2000-30KTL-M3 Inverter displays 'DC arc fault'?
- J
  John CareyAug 26, 2025
  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 the PV string cables for arcing or poor connections.
L
Lee BrownAug 22, 2025
What to do if Huawei SUN2000-30KTL-M3 shows 'Grid Loss'?
- C
  Christy RiosAug 22, 2025
  If your Huawei Inverter displays a 'Grid Loss' alarm, it indicates a power grid outage, a disconnected AC circuit, or a turned-off AC switch. The alarm should clear automatically once the power grid recovers. You can also check if the AC circuit is disconnected or the AC switch is off.
R
robertfergusonSep 12, 2025
What does 'Abnormal residual current' mean on Huawei Inverter?

Huawei SUN2000-30KTL-M3 Specifications

General

Model	SUN2000-30KTL-M3
Max. DC Input Voltage	1100 V
Number of MPPTs	3
Rated AC Output Power	30000 W
Max. Output Current	47.8 A
Frequency	50 Hz / 60 Hz
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
Total Harmonic Distortion (THD)	< 3%
Max. Efficiency	98.7%
European Weighted Efficiency	98.4%
DC Connection	MC4
Protection Degree	IP66
Cooling Method	Natural convection
MPPT Voltage Range	200 V - 1000 V
Max. AC Output Power	33000 W
Rated AC Voltage	400 V
AC Voltage Range	320 V - 480 V
Display	LED Indicators
Communication	RS485, WLAN
Operating Temperature Range	-25°C to 60°C
Relative Humidity	0% - 100%
Operating Altitude	4000 m
Weight	43 kg
Dimensions	640 x 530 x 270 mm
Max. DC Input Power	45000 Wp

Summary

Safety Information

Personal Safety Precautions

Covers safety rules for personnel during operations.

Electrical Safety Precautions

Specific safety rules related to electrical connections.

Environment Requirements

Conditions for safe installation and operation environments.

Installation

Determining the Installation Position

Guidelines for selecting the optimal installation site.

Installation Environment Requirements

Specific environmental conditions for installation.

Installing the Mounting Bracket

Steps for attaching the mounting bracket.

Installing the Inverter

Procedures to physically mount the inverter.

Electrical Connections

Precautions

Connecting the PE Cable

Connecting an AC Output Power Cable

Connecting DC Input Power Cables

Commissioning

Checking Before Power-On

System Power-On

Maintenance

System Power-Off

Routine Maintenance

Technical Specifications

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