User Manual
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2.3 Function Description
2.3.1 Basic Function
Conversion function
The inverter converts DC power from the PV array into grid-compliant AC
power and feeds it into the utility grid.
Data storage
Inverter logs essential data including running information and error records.
Parameter configuration
Inverter provides various parameter configurations for optimal operation. You
can set the country via the iSolarCloud App or the cloud server, in case you
require further, please contact Sungrow.
Communication interface
You can choose the RS485 terminal for connecting a communication module
to the PV system, such as Wi-Fi module.
It is recommended to use the communication module from Sungrow.
Using a device from other companies may lead to communication
failure or other unexpected damage.
Further information on the communication module can be found in the
respective Quick Installation Guide.
Earth fault alarm
If an earth fault occurs, the error code will be displayed on the LCD screen.
The buzzer inside the inverter will beep to signal an external alarm.
Protective function
The protective functions are integrated in the inverter, including short circuit
protection, grounding insulation resistance surveillance, residual current
protection, anti-islanding protection, DC overvoltage/ over-current protection,
etc.
2.3.2 External Demand Response
The inverter provides a RJ45 port for connecting to a demand response
enabling device (DRED). The DRED asserts demand respond modes (DRMs).
The inverter detects and initiates a response to the supported demand
response commands within 2 s. The following table lists the DRMs supported
by the inverter.
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