Parameter Name Description
Communica
tion
disconnecti
on fail-safe
In the inverter export limitation scenario, if this
parameter is set to Enable, the inverter will
derate according to the active power derating
percentage when the communication between
the inverter and the Smart Dongle is
disconnected for a period longer than
Communication disconnection detection time.
Communica
tion
disconnecti
on
detection
time
Species the fail-safe detection time in case of
disconnection between the inverter and the
Smart Dongle.
This parameter is displayed when
Communication disconnection fail-safe is set
to Enable.
Shutd
own
at
high
feed-
in
powe
r
a
Shutdown at high
feed-in power
● The default value is Disable.
● If this parameter is set to Enable, the
inverter shuts down for protection when the
grid-tied point power exceeds the threshold
and remains in this condition for the
specied time threshold.
Upper feed-in power
threshold for inverter
shutdown (kW)
The default value is 0. This parameter species
the power threshold of the grid-tied point for
triggering inverter shutdown.
High feed-in power
duration threshold
for triggering
inverter shutdown
(s)
The default value is 20. This parameter species
the duration threshold of high feed-in power for
triggering inverter shutdown.
● When High feed-in power duration
threshold for triggering inverter shutdown
is set to 5, Shutdown at high feed-in power
takes precedence.
● When High feed-in power duration
threshold for triggering inverter shutdown
is set to 20, Grid connection with limited
power takes precedence (when Active
power control is set to Grid connection
with limited power).
Note a: This parameter is supported only for the AS4777 grid code.
SUN2000-(12K-25K)-MB0 Series
User Manual 6 Power-On and Commissioning
Issue 01 (2023-04-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 81