Huawei SUN2000-90KTL Series User Manual page 92

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
Parameter
String connection mode
Automatic OFF due to
communication interrupted
Automatic ON due to
communication resumed
Communication interruption
duration (min)
Soft start/boot time (s)
Shutdown gradient (%/s)
Night-time hibernation
MBUS communication
Issue 16 (2023-12-20)
Description
Set the connection mode of PV strings.
● When PV strings connect to the SUN2000 separately (fully
separate connection), there is no need to set this parameter.
The SUN2000 can automatically detect the connection mode
of the PV strings.
● When PV strings connect to one another in parallel outside the
SUN2000 and then connect to SUN2000 independently (fully
parallel connection), set this parameter to All PV strings
connected.
The standards of certain countries and regions require that the
inverter must shut down after the communication is interrupted
for a certain time.
If Automatic OFF due to communication interrupted is set to
Enable and the inverter communication is interrupted for a
specified time (set by Communication interruption duration),
the inverter will automatically shut down.
NOTICE
Setting this parameter to Enable may cause power grid connection failure
of the solar inverters, which affects the energy yield.
If this parameter is set to Enable, the inverter automatically
starts after communication recovers. If this parameter is set to
Disable, the inverter needs to be started manually after
communication recovers.
This parameter is displayed when Automatic OFF due to
communication interrupted is set to Enable.
Specifies the duration for determining communication
interruption. Used for automatic shutdown for protection in case
of communication interruption.
Specifies the duration for the power to gradually increase when
the inverter starts.
Specifies the power change speed when the inverter shuts down.
The inverter monitors PV strings at night. If this parameter is set
to Enable, the monitoring function of the inverter will hibernate
at night to reduce power consumption.
For inverters that support RS485 communication and MBUS
communication, you are advised to set this parameter to Disable
to reduce power consumption.
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