F Afci - Huawei SUN2000-50KTL-ZHM3 User Manual

SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual
Function
If PV modules or cables are incorrectly connected or damaged, electric arcs may
be generated, which may cause fire. Huawei SUN2000s provide unique arc
detection in compliance with UL 1699B-2018 to ensure the safety of users' lives
and property.
This function is enabled by default. The SUN2000 automatically detects arc faults.
To disable this function, log in to the FusionSolar app, enter the Device
commissioning screen, choose Settings > Feature parameters, and disable AFCI.
Clearing Alarms
The AFCI function involves the DC arc fault alarm.
The SUN2000 has the AFCI alarm automatic clearance mechanism. If an alarm is
triggered for less than five times within 24 hours, the SUN2000 automatically
clears the alarm. If the alarm is triggered for five times or more within 24 hours,
the SUN2000 locks for protection. You need to manually clear the alarm on the
SUN2000 so that it can work properly.
You can manually clear the alarm as follows:
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Issue 03 (2022-08-30)
NO TE
The AFCI function works only with Huawei optimizers or ordinary PV modules when the
SUN2000 is connected to the grid, but does not support third-party optimizers or intelligent
PV modules.
Method 1: FusionSolar app
Log in to the FusionSolar app and choose Me > Device commissioning. On
the Device commissioning screen, connect and log in to the SUN2000 that
generates the AFCI alarm, tap Alarm management, and tap Clear on the
right of the DC arc fault to clear the alarm.
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