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.
