SMA SUNNY BOY - Manual (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.