Name: Huawei SUN2000-20KTL-M3
Brand: Huawei
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N Acronyms and Abbreviations

AFCI arc-fault circuit interrupter

LED light emitting diode

MBUS monitoring bus

MPP maximum power point

MPPT maximum power point tracking

PE protective earthing

PID potential induced degradation

PV photovoltaic

RCD residual current device

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

User Manual N Acronyms and Abbreviations

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