Table Of Contents - Huawei SUN2000-450W Series Troubleshooting Manual

SUN2000-450W and SUN2000-600W-P Series
Troubleshooting Guide Contents
Contents
About This Document ....................................................................................................... ii
1 Product Overview .......................................................................................................... 1
1.1 Application Scenarios ............................................................................................................................................ 1
1.2 Functions and Features ......................................................................................................................................... 2
2 Optimizer Knowledge .................................................................................................... 3
3 Troubleshooting ............................................................................................................ 4
3.1 Data to Be Collected Onsite .................................................................................................................................. 4
3.2 Optimizer Search Failure........................................................................................................................................ 7
3.3 Not All Optimizers Found in the Single-Inverter Scenario ...................................................................................... 9
3.3.1 Impedance Is Abnormal (R1 Is Much Greater Than N1) ....................................................................................... 9
3.3.2 Impedance Is Normal, but Not All Optimizers Are Found .................................................................................. 11
3.4 Optimizer Offline ................................................................................................................................................. 12
3.4.1 Inverter Alarm 2080-12 ..................................................................................................................................... 12
3.4.2 Optimizers Are Offline Occasionally, but Their Total Energy Yields Are Updating ............................................... 14
3.4.3 Optimizers Are Offline for a Long Time, Power Parameters Are Available but the SNs Are Empty ..................... 18
3.4.4 Optimizers Are Offline for a Long Time, and the Inverter Reports the 2065-7 Alarm .......................................... 18
3.4.5 An Optimizer Is Offline and the Impedance is Abnormal (R1 Is Much Greater Than N1) ...................................... 25
3.5 Faults in the Multiple-Inverter Scenario .............................................................................................................. 26
3.5.1 Impedance Is Normal ....................................................................................................................................... 26
3.5.2 Impedance Is Abnormal .................................................................................................................................... 30
Issue 01 (2024-1-2) Copyright © Huawei Technologies Co., Ltd. iii