Troubleshooting - Huawei SUN2000-55KTL Quick Manual

Login screen
Quick
settings
9
FAQ
How Should I View Active Alarms?
Connect a USB data cable or a Bluetooth module to the USB port of the SUN2000 to enable the
communication between the SUN2000 and the app. After login, tap Alarm on the main menu to
display the Active Alarm screen.
10

Troubleshooting

Symptom
The PV string is
connected reversely.
Selecting a
connection mode
Main menu
screen
Possible Cause
The PV string cables are
connected reversely during
the SUN2000 installation.
Connecting
Bluetooth
NOTICE
The preset passwords for Common User,

Advanced User, and Special User are
00000a.
Use the preset password upon initial login. To

ensure account security, change the password
immediately after login.
The screen snapshots in this document

correspond to app V200R001C20SPC010
(Android).
NOTE
By default, the SUN2000 can be grid-tied and you
do not have to set parameters. You can modify
the parameters based on site requirements. For
details about parameter configuration, see the
SUN2000 APP User Manual.
Suggestion
Wait until the solar irradiance declines at night
and the PV string current reduces to below 0.5
A. Then, turn off the two DC switches, remove
the positive and negative connectors, and
rectify the connection of the DC input power
cable.
17
Switching
between users