User Manual 2 Product Description
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2.3.2 Function Description
Inversion function
Inverter converts the DC current into grid-compatible AC current and feeds the
AC current into grid.
Data storage and display
Inverter achieves the running information, fault records and etc. and displays
them on the integrated LCD display.
Parameter Configuration
Inverter provides various parameter configuration for inverter optimal operation.
Communication Interface
Standard RS485 port, can be connected to monitoring device and PV system
Protection Function
− Short-circuit protection
− Ground insulation resistance detection
− Inverter output voltage monitoring
− Inverter output frequency detection
− Residual current protection
− DC injection of AC output current surveillance
− Anti-islanding protection
− Ambient temperature monitoring
− DC over-voltage protection
− Over-current protection
− Power module over-temperature protection
2.3.3 Derating
Output derating is a way to protect the inverter from overload or potential faults.
Situations require inverter power derating are:
Internal temperature is too high (including ambient temperature and module
temperature)
Grid voltage is too low
External power class adjustment
Grid frequency is too high
[*]
Note: [*] valid only when the country selected is DE or IT.
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