Replacing An Optimizer - Huawei SUN2000 User Manual

SUN2000 Smart PV Optimizer
User Manual
Alarm Name
Upgrade failed

4.5 Replacing an Optimizer

Prerequisites
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Procedure
Step 1 Put on the protective gloves.
Step 2 Power off the inverter.
Step 3 Disconnect the input terminals of the optimizer.
Step 4 Remove the old optimizer.
1.
2.
Step 5 Install a new optimizer.
1.
2.
Step 6 Power on the inverter. On the Device Commissioning screen, choose
Maintenance > Subdevice management, and tap Auto search to add the new
optimizer.
Issue 03 (2022-09-20)
Cause
The optimizer software
upgrade failed.
NO TE
Contact the service provider if all suggested measures listed above are completed and the
fault still exists.
Use dedicated insulation tools, and wear insulation shoes and protective
gloves before performing operations.
A new smart PV optimizer is available.
Record the cable connection positions on the optimizer and disconnect the
cables.
Loosen the bolt that secures the optimizer and remove the optimizer.
Secure the new optimizer to the corresponding bolt and tighten the bolt.
Connect the cables to the new optimizer based on the recorded information.
NO TE
If multiple optimizers need to be replaced, record the mapping information.
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 System Maintenance
Suggestions
1. When the sunlight is normal,
perform the optimizer upgrade
again.
2. If the fault persists, contact the
installation contractor.
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