B
String Access Detection
Function Description
●
Applies to large-scale commercial ground PV plants with PV strings facing the
same direction.
●
In AC or DC power limiting scenarios:
–
If the PV string access type is not identified, the value of
PV Status
will
keep being displayed as
Not connected
. The PV string access type can be
identified only when the inverters restore to the non-power limiting state
and the current of all connected PV strings reaches the startup current.
–
If the PV string access type has been identified, when some PV strings
connected to the 2-in-1 terminals are lost, no alarm will be generated. If
some PV strings connected to the 2-in-1 terminals are restored, the
access type cannot be identified. It can be determined whether all the 2-
in-1 PV strings are restored only when the string current reaches
Startup
current for 2 in 1 detection
.
Procedure
Step 1
Log in to the SUN2000 app as
Advanced User
. The initial password is
00000a
.
NO TE
Use the initial password upon first power-on and change it immediately after login. To
ensure account security, change the password periodically and keep the new password in
mind. Not changing the initial password may cause password disclosure. A password left
unchanged for a long period of time may be stolen or cracked. If a password is lost, devices
cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.
Step 2
Choose
Function Menu
>
Maintenance
>
String Access Detection
to go to the
parameter setting screen.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1
User Manual
B String Access Detection
Issue 05 (2020-08-30)
Copyright © Huawei Technologies Co., Ltd.
106
