Sma SUNNY BOY User Manual download pdf (Page 13)

SMA Solar Technology AG Operating Modes

User Manual SB_SMC-BEN092840 13

3.3.2 The green LED is continuously on

Feeding Operation

The inverter has passed the self-tests of the measurement

electronics and grid monitoring, and is now in normal

grid-feed operation.

3.3.3 The green LED is blinking slowly

Waiting, Grid Monitoring

The inverter is checking if the start conditions necessary

for feeding the grid (e.g. start voltage, start time) are

fulfilled, and then begins monitoring the grid. The PV

voltage must reach the specified minimum value at least

once before the inverter begins feeding into the grid.

3.3.4 The green LED is blinking

rapidly

Stop

The inverter is in "Stop" mode. This occurs, for instance,

when the measurement electronics are being calibrated.

After this, the device switches to "Waiting" mode.

The "Stop" mode can be manually pre-set by the installer

via an appropriate communications product. In this case

the inverter remains in "Stop" mode until a new operating

mode ("MPP mode", "Constant voltage mode", "Turbine

mode") has been set.

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Sma SUNNY BOY User Manual Page 13