Huawei SUN2000-50KTL-ZHM3 - Page 75

Parameter Description
Power
adjustment
period
Species the shortest interval for a single export limitation
adjustment.
Active power
output limit for
fail-safe
Species 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.
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 time for determining the communication
disconnection between the inverter and the Smart Dongle.
This parameter is displayed when Communication
disconnection fail-safe is set to Enable.
Grid
connecti
on with
limited
power
(%)
Closed-loop
controller
● For a single inverter, set Closed-loop controller to
Inverter.
● For multiple inverters, Closed-loop controller can only
be set to SDongle/SmartLogger.
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.
PV plant
capacity
Species the total maximum active power in the inverter
cascading scenario.
Maximum grid
feed-in power
Species the percentage of the maximum active power of
the grid-tied point to the PV plant capacity.
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-(50KTL-ZHM3, 50KTL-M3)
User Manual 7 Man-Machine Interaction
Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd. 67