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The inverter provides various parameter configurations for optimal operation. Parame-
ters can be set via the iSolarCloud App or the cloud server.
• Communication interface
The inverter is equipped with two communication interfaces.The communication device
can be connected to the inverter via both interfaces.
After communication connection is established, users can view inverter information, op-
erational data and can set inverter parameters through the iSolarCloud.
It is recommended to use the communication module from SUNGROW. Using
a device from other companies may lead to communication failure or other un-
expected damage.
• Protection Function
Several protective functions are integrated in the inverter, including short circuit protec-
tion, grounding insulation resistance monitoring, residual current protection, grid monitor-
ing, DC overvoltage/overcurrent protection, etc.
Earth Fault Alarm
The inverter is equipped with a DO relay for the local earth fault alarm. The additional equip-
ment required is a light indicator and/or a buzzer that needs additional power supply.
After the connection, if the earth fault occurs, the DO dry-contact will switch on automatically
to signal the external alarm.
DRM ("AU"/"NZ")
The DRM function is only applicable to a single inverter.
The inverter provides terminals for connecting to a Demand Response Enabling Device
(DRED). After the connection, the DRED asserts demand response modes (DRMs). The in-
verter detects and initiates a response to all supported demand response modes listed in
the following table.
table 2-2 Demand Response Mode Explanation
Mode Explanation
DRM0 The inverter is in the state of shutdown.
Ripple Control
The inverter provides terminals (DRM) for connecting to a Ripple Control Receiver (RCR).
After the connection, the grid dispatching center issues regulation instructions via dry con-
tact (DI). The inverter can control power output according to the local preset instructions.
PID Recovery
• For positive voltage scheme, after the PID function is enabled, the voltage to ground of
all PV strings is greater than 0, and therefore the PV string-to-ground voltage is a positive
value.
2 Product Description User Manual
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