● The communication disconnection fail-safe function must be used together with grid
connection with zero power or grid connection with limited power. If grid connection
with zero power or grid connection with limited power is not set, you are advised to
disable the communication disconnection fail-safe function. Otherwise, the inverter
enters unnecessary output power protection state.
● If grid connection with zero power or grid connection with limited power is disabled, the
inverter automatically disables the communication disconnection fail-safe function. If
grid connection with zero power or grid connection with limited power is enabled again,
you need to manually enable or disable the communication disconnection fail-safe
function based on networking requirements.
----End
6.3.2 (Optional) Setting the Physical Layout of the Smart PV
Optimizers
The Smart PV Optimizer is a DC to DC converter which implements maximum
power point tracking (MPPT) of each PV module to improve the energy yield of
the PV system. It enables module-level shutdown and monitoring.
If optimizers are
congured for PV modules, you can view the physical location of
each optimizer after creating a physical layout. If a PV module is faulty, you can
quickly locate the faulty PV module based on the physical layout to rectify the
fault. If a PV module without an optimizer is faulty, you need to check the PV
modules one by one to locate the faulty one, which is time-consuming and
inecient.
For details about the physical location layout of the optimizers, see FusionSolar
Physical Layout User Guide.
Figure 6-9 Viewing a physical layout on the FusionSolar app
SUN2000-(12K-25K)-MB0 Series
User Manual 6 Power-On and Commissioning
Issue 01 (2023-04-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 82
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