SMA SB 3300-11 - Manual (Page 17)

SMA Solar Technology AG Troubleshooting
User Manual SB33_38-BA-BEN114230 17
7 Troubleshooting
7.1 Status Messages
Your inverter can be in various operating states. These are displayed as status messages, which can
vary according to the type of communication.
Message Description
Derating Overtemperature in the inverter. The inverter reduces its output to
prevent overheating. To avoid unnecessary yield losses, check the
design of the PV plant. Inform your installer.
Disturbance, disturbance Disturbance.
This message appears for safety reasons and ensures that the
inverter does not connect to the power distribution grid. Inform
your installer.
Error An error has been detected. Inform your installer.
Grid monitoring Grid monitoring
This message appears during the startup phase, before the inverter
is connected to the power distribution grid, predominantly in the
morning and evening when the level of irradiation is too low, and
after an error.
MPP The inverter is operating in MPP mode. MPP is the standard display
message when operating under normal irradiation conditions.
Offset Offset adjustment of the measurement electronics.
Stop Operation interrupted.
V-Const Constant voltage operation.
Waiting The connection conditions are not (yet) fulfilled.