HUAWEI SUN2000 Smart PV Optimizer User Guide

HUAWEI SUN2000 Smart PV Optimizer User Guide

Issue: 04
Part Number: 31500GLF
Date: 2022-09-20

HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

1 Product Overview

The Smart PV Optimizer is a DC-DC converter installed on the rear of PV modules in a PV system. It manages the maximum power point (MPP) of each PV module to improve the energy yield of the PV system, and performs functions such as module-level shutdown and module-level management.

SUN2000-600W-P (Short Input Cable)/SUN2000-450W-P2
SUN2000-600W-P (Long Input Cable)
The length of the input power cable delivered with the optimizer is 150 mm. Select PV modules with appropriate cable length to ensure that the optimizer can connect to PV modules.

SUN2000-600W-P (Long Input Cable)
The length of the input power cable delivered with the optimizer is 150 mm. Select PV modules with appropriate cable length to ensure that the optimizer can connect to PV modules. The length of the input power cable delivered with the optimizer is 1000 mm. Select PV modules with appropriate cable length to ensure that the optimizer can connect to PV modules.

2. Installing the Device

2.1 Installation Requirements

2.2 Installing the Optimizer

NOTICE

Properly plan the installation position of optimizers to ensure that the cables between the
optimizer and the PV module and between adjacent optimizers can be properly connected, and the maximum communication distance between the optimizer and the solar inverter is within 350 m.

Installed on a PV Module Frame – Frame Mounting Bracket (Front-mounted)

3. Installing the Optimizer Cables

NOTICE

Ensure that the input (IN) and output (OUT) cables of the optimizer are correctly connected. If they are reversely connected, the device may be damaged.

NOTE

The measurement precision of the PV string output resistance depends on the resistance setting of the multimeter. Select the lowest resistance setting that can meet the measurement
requirements.

NOTE

To minimize electromagnetic interference, ensure that the distance between the positive and
negative cables of an optimizer is minimized.

4. Power-On Commissioning

1. The physical layout of the optimizers must be provided so that you can easily locate faulty
   optimizers based on the physical layout diagram.

2. The physical layout of the optimizers must be provided to use the optimizer disconnection detection function. After optimizer disconnection detection is performed, the locating result can be viewed on the Optimizer layout page.

3. Choose Maintenance > Subdevice management > Auto search to add an optimizer. Create a physical layout on the Physical layout design screen. For details, see the corresponding solar inverter quick guide or FusionSolar App Quick Guide. The solar inverter quick guide is delivered with the solar inverter. You can scan the QR code to obtain FusionSolar App Quick Guide.

NOTICE

If the system has change requirements, such as adding, deleting, and replacing an optimizer,
adjusting the physical position of an optimizer, or adjusting the PV string connected to the solar inverter input, power off the inverter and wait for 5 minutes before performing the change operation to avoid human injuries. After the change is performed, the optimizer search process must be performed again and the physical layout diagram must be updated. Otherwise, the networking is incomplete, optimizer faults cannot be located, or the system fails.

5. Troubleshooting

1. Open the FusionSolar app, log in to intl.fusionsolar.huawei.com using the installer account, choose Me > Device Commissioning, and connect to the WLAN hotspot of the solar inverter.
2. Select installer and enter the login password. Click Log In. The device commissioning screen is displayed.
3. Choose Device Monitoring, select the PV string and check the optimizer status.

6. Replacing an Optimizer

7. Precautions

WARNING

• The optimizer uses Staubli MC4 DC connectors. Ensure that the DC connectors to be connected are of this model. If the DC connectors to be connected are not of the Staubli MC4 model, the connector compatibility report and third-party lab (TUV, VED, or Bureau Veritas) report from the DC connector manufacturer must be available. Using incompatible DC connectors may result in serious consequences. The resulting device damage is beyond the warranty scope.
• The optimizer is not supported in the pure off-grid ESS networking. Otherwise, the system may fail to start.
• Partial configuration scenario: The total open-circuit voltage of the PV modules in a PV string cannot exceed the maximum input voltage of the solar inverter under any condition.

NOTICE

• The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all
  statements, information, and recommendations in this document do not constitute a
  warranty of any kind, express or implied.

• Only qualified and trained electrical technicians are allowed to operate the device. Operation personnel should understand the composition and working principles of the grid-tied PV power system and local regulations.

• Carefully read this document prior to installation to get familiar with product information
  and safety precautions. Huawei shall not be liable for any consequence caused by violation of the storage, installation, and operation regulations specified in this document and the solar inverter user manual.

• Use insulated tools when installing the device. For personal safety, wear proper personal
  protective equipment (PPE).

• If an optimizer does not connect to any other device, connect the OUT+ and OUT– ports of the optimizer respectively to the IN+ and IN– ports to protect the terminals from water.

• It is recommended that the positive and negative cables (PV+/PV–) between the optimizer and the solar inverter be placed side by side to avoid cable winding.

• The input end of the optimizer should be connected to the PV module connection box, and the output end to the adjacent optimizer or a solar inverter. Do not reversely connect the input and output cables. Otherwise, the optimizer may be damaged.

• The screenshots are for reference only. The actual screens may vary. Local physical layout
  using the solar inverter is used as an example. For details about the remote physical layout
  using the management system, see the FusionSolar App Quick Guide.

8. Installation Video

NOTE

You can scan the QR codes below to obtain the installation videos.

Huawei Digital Power Technologies Co., Ltd.
Huawei Digital Power Antuoshan Headquarters, Futian
Shenzhen 518043, People’s Republic of China
solar.huawei.com

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References

• 华为智能光伏官网-太阳能光伏发电站解决方案-光伏逆变器
• Huawei Enterprise | Accelerate Industrial Intelligence
• SUN2000-450W-P Smart PV Optimizer Quick Guide- Huawei
• (Video) SUN2000-(600W-P, 450W-P2, 450W-P) Smart PV Optimizer Installation Video- Huawei
• support.huawei.com/enterprise/en/doc/EDOC1100218890
• FusionSolar App Quick Guide- Huawei

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