5
5
Solar inverter
4. Connect cables between the PV string and the solar inverter.
4
Power-On Commissioning
You can add an optimizer on the
Quick settings
screen and set its
physical layout on the
Physical layout design of PV modules
screen
of the solar inverter app. For details, see the corresponding solar
inverter quick guide or
FusionSolar App Quick Guide
. The solar inverter
quick guide is delivered with the solar inverter. You can scan the QR
code to obtain
FusionSolar App Quick Guide
.
1. Open the FusionSolar
app, log in to
intl.fusionsolar.huawei.co
m using the installer
account, choose
My
>
Device Commissioning
,
and connect to the WLAN
hotspot of the solar
inverter.
2. Select
installer
and enter
the login password. Click
Log In
. The device
commissioning screen is
displayed.
3. Choose
Device
Monitoring
, select the
PV string and check the
optimizer status.
5
Troubleshooting
Optimizer status
Status Description
Green
The optimizer is
running properly.
Gray
The optimizer is offline.
Check that the SN and
location information
are correct and search
for the device again.
Red
The optimizer is faulty.
Fault alarm
Fault Alarm
Cause
Suggestions
Input overvoltage
The output voltage of the PV
module exceeds the maximum
input voltage of the optimizer.
Check whether the open-circuit voltage of the PV
module connected to the optimizer exceeds 80 V.
Overtemperature
The ambient temperature
exceeds the upper threshold or
the optimizer is not installed as
required.
1. Check the ventilation and ambient temperature
at the optimizer installation position. If the
ventilation is poor or the ambient temperature
exceeds the upper threshold, improve the
ventilation and heat dissipation.
2. If the ventilation and ambient temperature are
normal, contact the installation contractor.
Internal hardware
fault
The optimizer is not properly
installed or is faulty.
Contact the installation contractor.
