Huawei Copy-SUN2000 L1 Series User Manual

Huawei Copy-SUN2000 L1 Series

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Copy-SUN2000-(2KTL-6KTL)-L1

User Manual

Issue 06

Date 2022-03-10

HUAWEI TECHNOLOGIES CO., LTD.

Table of Contents

About This Document3
Contents6
1 Safety Information8
- 1.1 General Safety8
- 1.2 Personnel Requirements9
- 1.3 Electrical Safety10
- 1.4 Installation Environment Requirements11
- 1.5 Mechanical Safety11
- 1.6 Commissioning13
- 1.7 Maintenance and Replacement13
2 Product Introduction14
- 2.1 Overview14
- 2.2 Component Description18
- 2.3 Label Description19
- 2.4 Working Principles22
3 SUN2000 Storage24
4 System Installation25
- 4.1 Checking Before the Installation25
- 4.2 Preparing Tools and Instruments26
- 4.3 Determining the Installation Position27
- 4.4 Moving a SUN200030
- 4.5 Installing a SUN200031
  - 4.5.1 Wall-Mounted Installation32
  - 4.5.2 Support-Mounted Installation34
5 Electrical Connection37
- 5.1 Preparing Cables38
- 5.2 Connecting PE Cables42
- 5.3 (Optional) Installing a Smart Dongle45
- 5.4 Installing a WLAN Antenna46
- 5.5 Connecting an AC Output Power Cable47
- 5.6 Connecting DC Input Power Cables51
- 5.7 (Optional) Connecting Battery Cables55
- 5.8 (Optional) Connecting Signal Cables57
6 System Commissioning65
- 6.1 Verification Before Power-On65
- 6.2 System Power-On66
7 Man-Machine Interaction69
- 7.1 App Commissioning69
- 7.2 Parameters Settings73
8 System Maintenance85
- 8.1 System Power-Off85
- 8.2 Routine Maintenance86
- 8.3 Troubleshooting86
9 SUN2000 Disposal100
- 9.1 Removing a SUN2000100
- 9.2 Packing a SUN2000100
- 9.3 Disposing a SUN2000100
10 Technical Parameters101
- 10.1 SUN2000 Technical Specifications101
- 10.2 Optimizer Technical Specifications104
A Grid Code107
B Device Commissioning111
C Setting Power Adjustment Parameters114
D Resetting Password116
E Rapid Shutdown119
F Locating Insulation Resistance Faults120
G DRM Configuration Guide for Standard As NZS4777.2123
H Acronyms and Abbreviations124

Questions and Answers:

C
Christopher LittleAug 30, 2025
What to do if Huawei Copy-SUN2000 L1 Inverter displays Unstable Grid Frequency?
- C
  Curtis HessAug 30, 2025
  If your Huawei Inverter displays an Unstable Grid Frequency alarm: * If the alarm occurs occasionally, the power grid may be abnormal temporarily. The SUN2000 will automatically recover after detecting that the power grid becomes normal. * If the alarm occurs frequently, check whether the power grid frequency is within the allowed range. If no, contact the local power operator.
N
nvelezAug 31, 2025
What to do if Huawei Inverter displays Output Overcurrent?
- A
  Anne JohnsonAug 31, 2025
  If your Huawei Inverter displays an Output Overcurrent alarm: * The SUN2000 detects its external working conditions in real time. After the fault is rectified, the SUN2000 automatically recovers. * If the alarm occurs frequently and affects the energy yield of the power plant, check whether the output is short-circuited.
R
Ryan RoblesSep 1, 2025
What does Abnormal Residual Current mean on Huawei Inverter?
- T
  Tanya PhillipsSep 1, 2025
  If your Huawei Inverter indicates an Abnormal Residual Current, it means the insulation impedance of the input side to PE decreases when the SUN2000 is operating. If the alarm occurs occasionally, the external circuit may be abnormal temporarily and the SUN2000 will automatically recover after the fault is rectified. However, if the alarm occurs frequently or persists, check whether the impedance between the PV string and the ground is too low.
B
Benjamin JohnstonSep 1, 2025
What does Output DC Component Overhigh mean on Huawei Copy-SUN2000 L1?
- M
  Mark KirbySep 1, 2025
  If your Huawei Inverter displays an Output DC Component Overhigh alarm, it means the DC component of the SUN2000 output current exceeds the specified upper threshold. The SUN2000 detects its external working conditions in real time and automatically recovers after the fault is rectified.
L
lanealexandraSep 2, 2025
What to do if Huawei Inverter shows Device Fault?
- P
  Patricia FryeSep 2, 2025
  If your Huawei Inverter displays a Device Fault, turn off the AC output switch and DC input switch, and then turn them on after 5 minutes.
K
Kathryn WalkerSep 3, 2025
What to do if Huawei Inverter showing Faulty Power Collector?
- C
  Christopher BoydSep 3, 2025
  If your Huawei Inverter is showing a Faulty Power Collector message: * Check that the configured power meter model is the same as the actual model. * Check that the communications parameters for the smart power sensors are the same as the SUN2000 RS485 configurations. * Check whether the smart power sensor is powered on and whether the RS485 communications cable is connected.
S
Stefanie MaloneSep 13, 2025
How to fix DC Arc Fault on Huawei Copy-SUN2000 L1?

Huawei Copy-SUN2000 L1 Series Specifications

General

Number of MPPTs	2
Number of MPP trackers	2
Cooling Method	Natural convection
Protection Level	IP65
Type	String Inverter
Nominal Output Voltage	230 V
Rated output voltage	230 V
Operating Temperature	-25 °C ~ +60 °C
Communication	RS485

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