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SUN2000-440W-IA0 Smart Module
User Manual
Step 2 Power off the inverter.
Step 3 Disconnect the input terminals of the optimizer.
Step 4 Remove the old optimizer.
Step 5 Install a new optimizer.
Step 6 Power on the inverter. Log in to the FusionSolar app and tap the plant name on
the Home screen to access the plant screen. Choose Devices > Inverter, select the
inverter corresponding to the faulty optimizer, tap Optimizer Search, and perform
operations as prompted to search for optimizers.
Step 7 Choose Devices > Connected devices > Optimizer, tap Optimizer No., select the
faulty optimizer, tap Device Replacement, and replace the optimizer as prompted.
Issue 01 (2023-09-15)
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Record the cable connection positions on the optimizer and disconnect the cables.
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● Connect the cables to the new optimizer based on the recorded information.
● If multiple optimizers need to be replaced, record the optimizer numbers.
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N optimizers need to be replaced, perform the preceding procedure for N times.
● If
● After the optimizer is replaced, the new optimizer automatically inherits the energy
yield, physical layout, and logical layout of the faulty optimizer.
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 System Maintenance
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