Alarm List - Huawei SUN2000 Series User Manual

SUN2000 Smart PV Optimizer
User Manual
Ratio Range (Optimizer Output
Power/Optimizer Rated Power)
20%–40%
40%–60%
60%–80%
80%–100%
Default color
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5.4 Alarm List

Table 5-2 Common alarms and troubleshooting measures
Alarm Name
Input
overvoltage
Issue 04 (2023-04-21)
Cause
Optimizer input
overvoltage occurred.
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PV Module Color
Suggestion
Check whether the open-circuit
voltage of the PV module connected
to the optimizer exceeds 80 V.
5 System Maintenance
Description
The rated power of
the optimizer cannot
be reported or
obtained. As a result,
the calculation fails.
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