Parameter Name Description
Grid
conne
ction
with
limite
d
power
(%)
Closed-loop
controller
● If multiple inverters are cascaded, set this
parameter to SDongle/SmartLogger.
● If there is only one inverter, set this
parameter to Inverter. (If a single inverter is
connected to the SmartLogger, set this
parameter to SDongle/SmartLogger.)
● The closed-loop controller automatically
adapts to the application scenario and does
not need to be set.
Limitation
mode
Total power indicates export limitation of the
total power at the grid-tied point. (When a
single-phase power meter is connected, only the
Total power limitation mode can be selected.)
PV plant
capacity
Species the total maximum active power in the
inverter cascading scenario.
Maximum
grid feed-in
power
Species the percentage of the maximum active
power of the grid-tied point to the PV plant
capacity.
Power
adjustment
period
Species the shortest interval for a single export
limitation adjustment.
Maximum
protection
time
● Species the time for detecting power meter
data. If the Smart Dongle does not detect
any power meter data within the preset time,
the Smart Dongle delivers the preset value of
the Active power output limit for fail-safe
to the inverter for protection.
● The recommended value is 5s or greater.
Power
raising
threshold
Species the dead zone for adjusting the
inverter output power. If the power uctuates
within the power raising threshold, the power is
not adjusted. The recommended value is 1% to
2% of the inverter output power.
Active
power
output limit
for fail-safe
Species the derating value of the inverter
active power by percentage. If the Smart Dongle
does not detect any power meter data or the
communication between the Smart Dongle and
the inverter is disconnected, the Smart Dongle
delivers the derating value of the inverter active
power by percentage.
SUN2000-(12K-25K)-MB0 Series
User Manual 6 Power-On and Commissioning
Issue 01 (2023-04-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 80