Name: Huawei SUN2000-20KTL-M3
Brand: Huawei
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7 Human-Machine Interaction

NO TE

● The FusionSolar app is recommended if the inverter connects to the FusionSolar Smart

PV Management System. In areas where the FusionSolar app is unavailable or a third-

party management system is used, only the SUN2000 app can be used for

commissioning.

● Access Huawei AppGallery, search for FusionSolar or SUN2000, and download the app

installation package. You can also scan a QR code below to download the app. You are

advised to use a browser to scan a QR code.

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

User Manual 7 Human-Machine Interaction

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

Huawei SUN2000-20KTL-M3 User Manual

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Brand	Huawei
Model	SUN2000-20KTL-M3
Category	Inverter
Language	English