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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

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

中文

English

Summary of Contents for 02312LFH-001-1

Page 1: ...HUAWEI DIGITAL POWER TECHNOLOGIES CO LTD SUN2000 600W P 450W P2 Smart PV Optimizer Quick Guide Issue 02 Part Number 31500GLF Date 2022 02 20 ...

Page 2: ...he 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 Type II apparatus enhanced insulation Burn w...

Page 3: ...ptimizers may cause fire Do not store flammable or explosive materials in the installation area 1 Do not install the optimizers in a position that might be soaked in water for two hours or longer Water Cable cutter 3 Do not cut the cables delivered with the optimizers Otherwise the warranty will be voided 4 Avoid direct sunlight ...

Page 4: ...to be purchased from a third party Ensure that the length meets the installation requirements of the PV module frame PV module 2 Install the optimizer based on the selected installation mode 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 d...

Page 5: ...s normal N A R1 0 9 kΩ If the probes of the multimeter are correctly connected the optimizer is faulty Replace the optimizer 1 1 kΩ R1 The sunlight is weak The optimizer input is not connected The optimizer output is connected to the PV module output The optimizer is faulty 1 Measure the resistance when the sunlight is sufficient 2 Connect the optimizer input power cables 3 Correct the optimizer c...

Page 6: ...e reversely connected The measured value R2 is less than the resistance measured when the probes are correctly connected The sunlight is weak 1 1 kΩ R1 The optimizer input is not connected 1 1 kΩ R1 The optimizer output is connected to the PV module output 1 1 kΩ R1 The measurement precision of the PV string output resistance depends on the resistance setting of the multimeter Select the lowest re...

Page 7: ...ick guide is delivered with the solar inverter You can scan the QR code to obtain FusionSolar App Quick Guide Physical layout PV rooftop Location Faulty optimizer Disconnection icon Fault icon PV string PV string a If R is infinite an open circuit occurs in the PV string or the cables are connected to different PV strings Rectify the PV string open circuit fault and correctly group the PV string c...

Page 8: ...r Huawei technical support Internal hardware fault An internal fault occurred in the optimizer Contact your dealer or Huawei technical support Output backfeed Optimizer output backfeed occurred 1 Check whether PV modules are severely blocked when PV strings are connected in parallel 2 If the fault persists contact your dealer or Huawei technical support Abnormal output voltage The optimizer output...

Page 9: ... 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 Pa...

Page 10: ...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 si...

Page 11: ...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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