SMA Solar Technology AG
Measurement Channels and Messages
User Manual
SB_SMC_Schueco-BEN093730
31
grid. mon
Testing the grid status, relay test etc.
This message occurs during the startup phase before the Sunny Boy or Sunny Mini
Central has connected to the grid. The message usually appears in the morning and
evening when there is little solar irradiation. Grid monitoring is also carried out after
a fault has occurred.
MPP
The Sunny Boy / Sunny Mini Central is operating in MPP mode. It extracts the
highest possible power output from the PV generator. MPP is the standard display
message when operating under normal irradiation conditions.
Mpp Peak
The inverter is operating in MPP mode above its rated capacity.
MPP-Search
The inverter is calculating the MPP (Maximum Power Point)
Off Grid
The inverter is in "Island" mode. This mode has been specially conceived for
operation in a stand-alone grid with a Sunny Island as grid controller.
Offset
Offset adjustment of measurement electronics
Stop
Interruption of operation after a disturbance. This status can also be set manually.
Turbine
Mode
The inverter is in "Turbine" mode. This mode is specifically conceived for use with
wind turbine systems.
V-Const
Constant-voltage operation ("Const. Volt.")
The input voltage of the PV generators is set at a given nominal value and the
inverter is not operating in MPP mode. In some cases this mode can be set as the
operating mode.
waiting
The switch-on conditions are not (yet) fulfilled.
Message
Description and corrective measure
