Normal Mode; Fault Mode; Shutdown Mode; Operation Modes - Growatt 1500-US Installation & Operation Manual

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Operation Modes

12.1 Normal Mode

In this mode, the inverter works normally and LED turns green.
1. Whenever the DC voltage is higher than 150Vdc, inverter converts power to
grid as generated by the PV panels;
2. Whenever the DC voltage is lower than 150Vdc, the inverter will work in waiting
state and attempt to connect the grid. In waiting state the inverter consumes just
enough power generated by the PV panel to monitor the internal system status;
The inverter starts up automatically when the DC power
from the PV panel is sufficient.
NOTICE

12.2 Fault Mode

The internal intelligent controller can continuously monitor and adjust the system
status. If inverter finds any unexpected conditions such as system fault and
inverter fault, the fault information will be displayed on the LCD. In fault mode the
LED turns red.
Detailed fault information refers to 13. Trouble shooting.
NOTICE

12.3 Shutdown Mode

Inverters automatically stop running during periods of little or no sunlight. In
shutdown mode the inverters take no power from the grid and panel, and the LCD
and LED turns off.
If the PV string DC voltage is too low, the inverter will also
turn to Shutdown Mode.
NOTICE
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De-rating Operation
Temperature
The inverter will monitor the temperature of the heat-sink. Once the temperature
exceeds 75°C (167°F) ,the system will reduce the output power until the
temperature drops under the critical value. The inverter will shut down the power
output to the grid if the temperature reaches 85°C (185°F). If this occasion
happens often, it is necessary to check whether the inverter is mounted at an
appropriate place with good ventilation and not directly exposure to the sunshine.
Please refer to the warranty card.
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Growatt Warranty
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