Sungrow SG2K5-S User Manual page 55

User Manual
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Fig. 7-2 Volt-watt Response Curve ("AU" for example)
Grid Protection Voltage Adjusting
All Sungrow's inverters are compliant with the standard AS/NZS 4777 related to
grid protection requirements. In order to work with unstable utility grids,
inverters are equipped with automatic protection voltage adjusting function
(disabled by default). This mode can be enabled via the LCD.
OFF (default setting): the function is disabled. The grid protection voltage
cannot automatically adjust.
ON: enables the protection function. The inverter will automatically adjust the
protection threshold to a higher value so as to be normally connected to the grid
in the event of grid over-voltage. The V
V , with an upper limit value not higher than V
max
If the setting is changed from ON to OFF, you should
set the protection voltage as specified in Tab. 7-3
according to local protection requirements.
If the automatic protection voltage adjusting function is set to ON, the
volt-watt response and the 10-minute over-voltage protection function
will be automatically disabled.
If the line voltage or frequency goes outside pre-determined
parameters, the inverter must shut down for safety purposes, which
means it is not a faulty inverter in these instances. High line voltages
may damage home appliances and Sungrow is not held responsible or
liable for these issues.
V1 V2
Inverter Voltage, V
V3 V4
Default characteristic
Range (lower limit)
Range (upper limit)
will be adjusted the same with the
max-rec
.
max
7 LCD Operation
OFF ON
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