Installing the Device Installation Requirements Clearance Improper operations during the Do not install the optimizers in a position installation and running of optimizers that might be soaked in water for two may cause fire. Do not store flammable hours or longer. or explosive materials in the installation area.
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• profile on the front or rear side with T- shaped bolt and nut. The T-shaped bolt and nut need to be • purchased separately from Huawei. The bolt dimensions are as follows. PV module M8x20 bolt assembly Flange nut Installed on a PV Module Frame –...
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Purchase the frame mounting bracket separately from Huawei. Install the PV module after the optimizer is installed. Installing the Optimizer Cables 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.
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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. Common Exception Scenarios The probes are The sunlight is weak: reversely connected. 1.1 kΩ...
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 cables. b. If R4 is less than R3, A is the positive cable of the PV string, and B is the negative cable of the PV string.
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.
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1. When the sunlight is normal, perform the optimizer upgrade The optimizer again. Upgrade failed software 2. If the fault persists, contact your dealer or Huawei technical upgrade failed. support. Replacing an Optimizer 1. Power off the solar inverter and remove 2.
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.
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Huawei Digital Power Technologies Co., Ltd. Huawei Digital Power Antuoshan Headquarters, Futian Shenzhen 518043, People's Republic of China solar.huawei.com...