Huawei SUN2000-M3 - Page 77

Parameter Description
Active power
output limit for
fail-safe
Species the derating value of the SUN2000 active power
by percentage. If the Smart Dongle does not detect any
meter data or the communication between the Smart
Dongle and the SUN2000 is disconnected, the Smart
Dongle delivers the derating value of the SUN2000 active
power by percentage.
Communicatio
n
disconnection
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.
Communicatio
n
disconnection
detection time
Species the fail-safe detection time for the disconnection
between the SUN2000 and the Smart Dongle.
This parameter is displayed when Communication
disconnection fail-safe is enabled.
Grid
connecti
on with
limited
power
(kW)
Closed-loop
controller
● If multiple SUN2000s are cascaded, set this parameter
to SDongle/SmartLogger.
● If there is only one SUN2000, set this parameter to
Inverter.
Limitation
mode
● Total power indicates export limitation of the total
power at the grid-tied point. (When a single-phase
meter is connected, only Total power can be selected. If
a three-phase meter is connected in three-phase three-
wire mode, only Total power can be selected.)
● Single-phase power indicates export limitation of the
power in each phase at the grid-tied point. If a three-
phase meter is connected, Single-phase power can be
selected only when the meter is connected in three-
phase four-wire mode.
Maximum grid
feed-in power
Species the maximum active power transmitted from the
grid-tied point to the power grid.
Power
adjustment
period
Species the shortest interval for a single export limitation
adjustment.
Maximum
protection time
Species the time for detecting power meter data. If the
Dongle does not detect any power meter data within the
preset time, the Dongle delivers the preset value of Active
power output limit for fail-safe for protection.
Power raising
threshold
Species the step for grid-tied power adjustment.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 7 Man-Machine Interaction
Issue 11 (2023-01-10) Copyright © Huawei Technologies Co., Ltd. 68